Øyvind Weiby Gregersen

About

My work at NTNU

I am a professor in paper technology and paper physics at the Department of Chemical Engineering. I was previously the Dean and vice dean for education at the Faculty of Natural Sciences and has served as head of the Chemical Engineering department. I primarily focus my research on paper physics, mechanical pulping and production and modification of microfibrillated cellulose. Most of my research is done in close co-operation with the Paper and fibre institute (RISE PFI).

Research

My research focus on improving physical properties of materials based on paper fibres and on improving the production processes with regards to energy and raw material consumtion. I have focused on fracture toughness and printability of paper materials. The chipping and refining process for mechanical pulps and production and use of nanocellulose. During 2026 I have spent my sabatical at UBC in Vancouver and developed a research program focusing on extensibility and ductility of high yield pulp based products.

Bioraffineri og fiberteknologi

MultiBoard (2026-2029)

The project goal is to produce high yield pulp based packaging paper with high brightness and printability. This will minimize raw materials consumption and contribute to sustainable packaging. Partners: Norske Skog Skogn AS, RISE PFI, NTNU, NORSUS

NanoMBE (2014-2019)

NanoMBE, is aimed to develop bio-based nanocomposite membranes that can significantly increase separation performance for CO2 capture from flue gas (CO2/N2 separation) and biogas (CO2/CH4 separation).

Publications

2021

Jahan, Zaib; Bilal, Muhammad; Gul, Saeed; Sher, Farooq; Kakar, Salik Javed; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2021) Mimic Enzyme Based Cellulose Nanocrystals/PVA Nanocomposite Membranes for Enrichment of Biogas as a Natural Gas Substitute. Journal of Polymers and the Environment
Academic article

2020

Niazi, Muhammad Bilal K.; Jahan, Zaib; Arooj, Ahmed; Uzair, Bushra; Mukhtar, Ahmad; Gregersen, Øyvind Weiby. (2020) Mechanical and Thermal Properties of Carboxymethyl fibers (CMF)/PVA based nanocomposite membranes. Journal of Industrial and Engineering Chemistry
Academic article
Niazi, Muhammad Bilal Khan; Jahan, Zaib; Ahmed, Arooj; Rafiq, Sikander; Jamil, Farrukh; Gregersen, Øyvind Weiby. (2020) Effect of Zn-Cyclen Mimic Enzyme on Mechanical, Thermal and Swelling Properties of Cellulose Nanocrystals/PVA Nanocomposite Membranes. Journal of Polymers and the Environment
Academic article
Helberg, Ragne M Lilleby; Torstensen, Jonathan Økland; Dai, Zhongde; Janakiram, Saravanan; Chinga-Carrasco, Gary; Gregersen, Øyvind Weiby; Syverud, Kristin; Deng, Liyuan. (2020) Nanocomposite membranes with high-charge and size-screened phosphorylated nanocellulose fibrils for CO2 separation. Green Energy & Environment
Academic article

2019

Ottesen, Vegar; Larsson, Per Tomas; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby. (2019) Mechanical properties of cellulose nanofibril films: effects of crystallinity and its modification by treatment with liquid anhydrous ammonia. Cellulose
Academic article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby; Hussain, Arshad. (2019) Phosphorylated nanocellulose fibrils/PVA nanocomposite membranes for biogas upgrading at higher pressure. Separation science and technology (Print)
Academic article
Torstensen, Jonathan Økland; Helberg, Ragne M Lilleby; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin. (2019) PVA/nanocellulose nanocomposite membranes for CO2 separation from flue gas. International Journal of Greenhouse Gas Control
Academic article

2018

Torstensen, Jonathan Ø; Johnsen, Per-Olav; Riis, Henrik; Spontak, Richard J; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin. (2018) Preparation of cellulose nanofibrils for imaging purposes: comparison of liquid cryogens for rapid vitrification. Cellulose
Academic article
Ottesen, Vegar; Gregersen, Øyvind Weiby; Syverud, Kristin. (2018) Cellulose Nanofibrils as Paper Additive and Coating Material: Properties, Distribution and Interaction Effects. Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2018) Decoupling the effect of membrane thickness and CNC concentration in PVA based nanocomposite membranes for CO2/CH4 separation. Separation and Purification Technology
Academic article
Torstensen, Jonathan Ø; Liu, Ming; Jin, Soo-Ah; Deng, Liyuan; Hawari, Ayman I.; Syverud, Kristin; Spontak, Richard J.; Gregersen, Øyvind Weiby. (2018) Swelling and Free-Volume Characteristics of TEMPO-Oxidized Cellulose Nanofibril Films. Biomacromolecules
Academic article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2018) Cellulose nanocrystal/PVA nanocomposite membranes for CO2/CH4 separation at high pressure. Journal of Membrane Science
Academic article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Gregersen, Øyvind Weiby. (2018) Mechanical, thermal and swelling properties of cellulose nanocrystals/PVA nanocomposites membranes. Journal of Industrial and Engineering Chemistry
Academic article

2017

Ottesen, Vegar; Kumar, Vinay; Toivakka, Martti; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby. (2017) Viability and properties of roll-to-roll coating of cellulose nanofibrils on recycled paperboard. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Niazi, Muhammad Bilal Khan; Jahan, Zaib; Berg, Sigrun Sofie; Gregersen, Øyvind Weiby. (2017) Mechanical, thermal and swelling properties of phosphorylated nanocellulose fibrils/PVA nanocomposite membranes. Carbohydrate Polymers
Academic article
Kumar, Vinay; Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby; Toivakka, Martti. (2017) Coatability of cellulose nanofibril suspensions: Role of rheology and water retention. BioResources
Academic article
Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby. (2017) Nanocellulose - et steg nærmere fremtidens innpakking. Kjemi
Popular science article
Gregersen, Øyvind Weiby; Kløkstad, Geir Øivind; Hervik, Sigbjørn; Plesser, Hans Ekkehard; Pettersen, Ivar. (2017) Some factors affecting the grades of technology students. Nordic Journal of STEM Education
Academic article

2016

Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby. (2016) Mixing of cellulose nanofibrils and individual furnish components: Effects on paper properties and structure. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2015

Nguyen, Tuan Anh; Gregersen, Øyvind Weiby; Männle, Ferdinand. (2015) Thermal oxidation of polyolefins by mild pro-oxidant additives based on iron carboxylates and lipophilic amines: Degradability in the absence of light and effect on the adhesion to paperboard. Polymers
Academic article

2014

Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2014) Variation in surface potential decay characteristics of super-calendered papers. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Stenius, Per Johan; Kure, Kjell-Arve. (2014) Variables that affect surface potential decay of super-calendered paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Nguyen, Tuan Anh; Gregersen, Øyvind Weiby; Männle, Ferdinand; Brachet, Philippe. (2014) Effects of hydrophobic polyhedral oligomeric silsesquioxane coating on water vapour barrier and water resistance properties of paperboard. Journal of Sol-Gel Science and Technology
Academic article
Brodin, Fredrik Wernersson; Gregersen, Øyvind Weiby; Syverud, Kristin. (2014) Cellulose nanofibrils: Challenges and possibilities as a paper additive or coating material - A review. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2013

Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2013) Reaction kinetics and mechanisms of filler clay-induced discolouration of bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2013) Effect of sodium dithionite post-bleaching on the clay-induced discolouration of a hydrogen peroxide bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hellström, Lisbeth M.; Carlberg, Torbjörn; Engstrand, Per; Gradin, Per A.; Gregersen, Øyvind Weiby. (2013) EVALUATION OF COLLIMATED CHIPPING TECHNOLOGY FOR REDUCING ENERGY CONSUMPTION IN MECHANICAL PULPING. Pulp & paper Canada
Academic article
Simonsen, Galina; Saito, T; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby; Kuramae, R; Isogai, A. (2013) TEMPO-Mediated Oxidation of Norway Spruce and Eucalyptus Pulps: Preparation and Characterization of Nanofibers and Nanofiber Dispersions. Journal of Polymers and the Environment
Academic article
Simonsen, Galina; Hoff, Bård Helge; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2013) Gas-phase esterification of microfibrillated cellulose (MFC) films. Cellulose
Academic article
Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2013) Annual report 2012: Department of Chemical Engineering. Department of Chemical Engineering, NTNU
Research report
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, K. A.. (2013) Filler clay induced discolouration of bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2012

Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2012) The effect of MFC on the pressability and paper properties of TMP and GCC based sheets. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Simonsen, Galina; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2012) TEMPO-oxidized cellulose nanofiber films: effect of surface morphology on water resistance. Cellulose
Academic article
Simonsen, Galina; Saito, T; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby; Fukuzumi, H; Isogai, A. (2012) Mechanical and oxygen barrier properties of films prepared from fibrillated dispersions of TEMPO-oxidized Norway spruce and Eucalyptus pulps. Cellulose
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2012) The effect of newsprint furnish composition and sheet structure on wet pressing efficiency. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind; Toven, Kai. (2012) The web structure in relation to the furnish composition and shoe press pulse profiles during wet pressing. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hellström, Lisbeth M.; Carlberg, Torbjörn; Engstrand, Per; Gradin, Per A.; Gregersen, Øyvind Weiby. (2012) Evaluation of collimated chipping technology for reducing energy consumption in mechanical pulping. Journal of Science & Technology for Forest Products and Processes
Academic article
Simonsen, Galina; Roudot, Solenne; Eriksen, Øyvind; Männle, Ferdinand; Gregersen, Øyvind Weiby. (2012) The formation and characterization of sustainable layered films incorporating Microfibrillated Cellulose (MFC). BioResources
Academic article
Nguyen, Tuan-Anh; Männle, Ferdinand; Gregersen, Øyvind Weiby. (2012) Polyethylene/octa-(ethyl octadeca-10,13 dienoamide) silsesquioxane blends and the adhesion strength to paperboard. International Journal of Adhesion and Adhesives
Academic article
Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2012) Annual report 2011. Institutt for kjemisk prosessteknologi, NTNU
Research report

2011

Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2011) Annual Report 2010: Department of Chemical Engineering, NTNU. Department of Chemical Engineering, NTNU
Research report
Iotti, Marco; Gregersen, Øyvind Weiby; Moe, Størker; Lenes, Marianne. (2011) Rheological Studies of Microfibrillar Cellulose Water Dispersions. Journal of Polymers and the Environment
Academic article
Simonsen, Galina; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2011) Surface chemical modification of microfibrillated cellulose: improvement of barrier properties for packaging applications. Cellulose
Academic article
Opedal, Mihaela Tanase; Stenius, Per Johan; Gregersen, Øyvind Weiby; Johansson, Lars; Hill, Jan. (2011) Removal of dissolved and colloidal substances from TMP process water using dissolved air flotation. Laboratory tests. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind; Toven, Kai; Rosén, F.; Vomhoff, H.. (2011) Quantification of the Web Structure in Relation to Process Conditions During Wet Pressing and Furnish Composition.
Academic chapter
Rusu, Marius; Mörseburg, Kathrin; Gregersen, Øyvind Weiby; Yamakawa, Asuka; Liukkonen, Sari. (2011) RELATION BETWEEN FIBRE FLEXIBILITY AND CROSS-SECTIONAL PROPERTIES. BioResources
Academic article
Rusu, Marius; Liukkonen, Sari; Gregersen, Øyvind Weiby; Sirviö, Jari. (2011) The influence of fibre wall thickness and fibril angle on fibre development in the TMP process. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Paunonen, Sara Inkeri; Lenes, Marianne; Gregersen, Øyvind Weiby. (2011) Moisture Content of Polyethylene Coated Solid Fibreboard after Industrial Lamination. Packaging technology & science
Academic article
Gregersen, Øyvind Weiby. (2011) A hub for research nd education. Public Service Review: European Union
Popular science article
Hellström, Lisbeth M.; Gradin, Per A.; Engstrand, Per; Gregersen, Øyvind Weiby. (2011) Properties of wood chips for thermomechanical pulp (TMP) production as a function of spout angle. Holzforschung
Academic article

2010

Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2010) Annual report 2009: Department of Chemical Engineering, NTNU. Department of Chemical Engineering, NTNU
Research report
Paunonen, Sara Inkeri; Lenes, Marianne; Gregersen, Øyvind Weiby. (2010) Modeled and measured bending stiffness of polyethylene coated solid fiberboard. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Gurandsrud, Karl J.; Gregersen, Øyvind Weiby. (2010) Fra sulfittmassekjemi til bioraffineri. Kjemi
Professional article
Paunonen, Sara Inkeri; Gregersen, Øyvind Weiby. (2010) The Effect of Moisture Content on Compression Strength of Boxes Made of Solid Fiberboard with Polyethylene Coating—An Experimental Study. Journal of Applied Packaging Research
Academic article

2009

Gregersen, Øyvind Weiby; Syverud, Kristin; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2009) The Influence of Microfibrillated Cellulose, MFC, on Paper Strength and Surface Properties.
Academic chapter
Mäkelä, Petri; Nordhagen, Håkon Ottar; Gregersen, Øyvind Weiby. (2009) Validation of isotropic deformation theory of plasticity for fracture mechanics analysis of paper materials. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2008

Nordhagen, Håkon Ottar; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2008) Strength variations in paper containing a sharp notch. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Antoine, Christine; Gregersen, Øyvind Weiby. (2008) On the three component quantification of print-throud. Part 2: Effect of the ink vehicle extraction on print optical properties. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Øyvind; Syverud, Kristin; Gregersen, Øyvind Weiby. (2008) The use of microfibrillated cellulose produced from kraft pulp as strength enhancer in TMP paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2007

Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2007) The influence of ink oil on print-through. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Øyvind; Johannesen, Erik; Gregersen, Øyvind Weiby. (2007) The influence of paper surface roughness on ink pigment distribution. Appita journal
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2007) Fractionating - A Way to Save Bleaching Chemicals ?. Journal of Pulp and Paper Science (JPPS)
Academic article

2006

Holmstad, R; Goel, A; Ramaswamy, S; Gregersen, Øyvind Weiby. (2006) Visualization and characterization of high resolution 3D images of paper samples. Appita journal
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2006) Theoretical estimates of expected refining zone pressure in a mill-scale TMP refiner. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen peroxide bleaching of mechanical pulp fines. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2006) Pressure and vibration in the refining zone of a TMP refiner - influence of the fibre flow. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, Rune; Goel, Amit; Ramaswamy, Shri; Gregersen, Øyvind Weiby. (2006) Visualization and characterization of high resolution 3D images of paper samples. Appita journal
Academic article
Lenes, Marianne; Gregersen, Øyvind Weiby. (2006) Effect of surface chemistry and topography of sulphite fibres on the transcrystallinity of polypropylene. Cellulose
Academic article
Goel, Amit; Arns, C. H.; Holmstad, Rune; Gregersen, Øyvind Weiby; Bauget, F.; Averdunk, H.; Sok, R. M.; Sheppard, A. P.; Knackstedt, M.. (2006) Analysis of the impact of papermaking variables on the structure and transport properties of paper samples by X-ray microtomography. Journal of Pulp and Paper Science (JPPS)
Academic article
Eriksen, Øyvind; Chinga, Gary; Gregersen, Øyvind Weiby. (2006) A Mathematical Morphology-Based Method for the Quantification of Fines in the Z Direction of Paper. Journal of Pulp and Paper Science (JPPS)
Academic article
Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2006) Ink pigment location measured as the position of clay in yellow coldset ink. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen Peroxide Bleaching of TMP Fines. Journal of Pulp and Paper Science (JPPS)
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen Peroxide Bleaching of Different TMP Fibre Fractions. Journal of Pulp and Paper Science (JPPS)
Academic article

2005

Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2005) The influence of ink pigment penetration and paper structure on print through. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, Rune; Gregersen, Øyvind Weiby; Aaltosalmi, U; Koponen, A; Goel, A; Ramaswamy, S. (2005) Comparison of 3D structural charcteristics of high and low resolution X-ray microtomographic images of paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2005) Refining zone pressure in a mill-scale TMP refiner measured by fibre-optic sensors. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

2004

Holmstad, Rune; Kure, Kjell-Arve; Chinga, Gary; Gregersen, Øyvind Weiby. (2004) Effect of temperature gradient multi-nip calendering on the structure of SC paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, Rune; Gregersen, Øyvind Weiby. (2004) Methods for Paper Structure Characterisation by Means of Image Analysis. Norges teknisk-naturvitenskapelige universitet
Doctoral thesis

2002

Toven, Kai; Gregersen, Øyvind Weiby; Holmstad, Rune; Lieng, Erik. (2002) Paper Physics Seminar in Syracuse, New York. Skogindustri
Popular science article
Hestmo, Rune Harald; Gregersen, Øyvind Weiby; Lamvik, Magne. (2002) Calendering of wood containing paper: A laboratory study of temperature, moisture and pressure effects on fibre wall damage. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

1998

Gregersen, Øyvind Weiby. (1998) On the assessment of effective paper web strength. NTNU
Doctoral thesis
Gregersen, Øyvind Weiby. (1998) On the assessmentof effective paper web strength. NTNU
Doctoral thesis

1997

Helle, Torbjørn; Johnsen, Per Olav; Gregersen, Øyvind Weiby; Skinnarland, Ingrid. (1997) Methods to study the coverage of lignin rich material in fibres and paper surfaces. Tapir trykkeri, Trondheim
Research report

1995

Gregersen, Øyvind Weiby; Skinnarland, Ingrid; Johnsen, Per Olav; Helle, Torbjørn; Ødegaard, Svein; Svardal, A.; Ueland, P. M.; Norros, Ilkka; Virtamo, Jorma; Talle, A. (1995) Qualitative methods for the study of lignin distribution in wood and surface layers of unbleached pulp fibres and paper. Kompendium, utgitt av NHH
Academic article

Journal publications

Ottesen, Vegar; Kumar, Vinay; Toivakka, Martti; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby. (2017) Viability and properties of roll-to-roll coating of cellulose nanofibrils on recycled paperboard. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Iotti, Marco; Gregersen, Øyvind Weiby; Moe, Størker; Lenes, Marianne. (2011) Rheological Studies of Microfibrillar Cellulose Water Dispersions. Journal of Polymers and the Environment
Academic article
Niazi, Muhammad Bilal Khan; Jahan, Zaib; Berg, Sigrun Sofie; Gregersen, Øyvind Weiby. (2017) Mechanical, thermal and swelling properties of phosphorylated nanocellulose fibrils/PVA nanocomposite membranes. Carbohydrate Polymers
Academic article
Simonsen, Galina; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2011) Surface chemical modification of microfibrillated cellulose: improvement of barrier properties for packaging applications. Cellulose
Academic article
Torstensen, Jonathan Ø; Johnsen, Per-Olav; Riis, Henrik; Spontak, Richard J; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin. (2018) Preparation of cellulose nanofibrils for imaging purposes: comparison of liquid cryogens for rapid vitrification. Cellulose
Academic article
Opedal, Mihaela Tanase; Stenius, Per Johan; Gregersen, Øyvind Weiby; Johansson, Lars; Hill, Jan. (2011) Removal of dissolved and colloidal substances from TMP process water using dissolved air flotation. Laboratory tests. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Kumar, Vinay; Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby; Toivakka, Martti. (2017) Coatability of cellulose nanofibril suspensions: Role of rheology and water retention. BioResources
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2013) Reaction kinetics and mechanisms of filler clay-induced discolouration of bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2012) The effect of MFC on the pressability and paper properties of TMP and GCC based sheets. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2013) Effect of sodium dithionite post-bleaching on the clay-induced discolouration of a hydrogen peroxide bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby. (2017) Nanocellulose - et steg nærmere fremtidens innpakking. Kjemi
Popular science article
Niazi, Muhammad Bilal K.; Jahan, Zaib; Arooj, Ahmed; Uzair, Bushra; Mukhtar, Ahmad; Gregersen, Øyvind Weiby. (2020) Mechanical and Thermal Properties of Carboxymethyl fibers (CMF)/PVA based nanocomposite membranes. Journal of Industrial and Engineering Chemistry
Academic article
Simonsen, Galina; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2012) TEMPO-oxidized cellulose nanofiber films: effect of surface morphology on water resistance. Cellulose
Academic article
Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2007) The influence of ink oil on print-through. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Gregersen, Øyvind Weiby; Skinnarland, Ingrid; Johnsen, Per Olav; Helle, Torbjørn; Ødegaard, Svein; Svardal, A.; Ueland, P. M.; Norros, Ilkka; Virtamo, Jorma; Talle, A. (1995) Qualitative methods for the study of lignin distribution in wood and surface layers of unbleached pulp fibres and paper. Kompendium, utgitt av NHH
Academic article
Niazi, Muhammad Bilal Khan; Jahan, Zaib; Ahmed, Arooj; Rafiq, Sikander; Jamil, Farrukh; Gregersen, Øyvind Weiby. (2020) Effect of Zn-Cyclen Mimic Enzyme on Mechanical, Thermal and Swelling Properties of Cellulose Nanocrystals/PVA Nanocomposite Membranes. Journal of Polymers and the Environment
Academic article
Nordhagen, Håkon Ottar; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2008) Strength variations in paper containing a sharp notch. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Rusu, Marius; Mörseburg, Kathrin; Gregersen, Øyvind Weiby; Yamakawa, Asuka; Liukkonen, Sari. (2011) RELATION BETWEEN FIBRE FLEXIBILITY AND CROSS-SECTIONAL PROPERTIES. BioResources
Academic article
Eriksen, Øyvind; Johannesen, Erik; Gregersen, Øyvind Weiby. (2007) The influence of paper surface roughness on ink pigment distribution. Appita journal
Academic article
Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2005) The influence of ink pigment penetration and paper structure on print through. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, Rune; Kure, Kjell-Arve; Chinga, Gary; Gregersen, Øyvind Weiby. (2004) Effect of temperature gradient multi-nip calendering on the structure of SC paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, Kjell-Arve. (2014) Variation in surface potential decay characteristics of super-calendered papers. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Mäkelä, Petri; Nordhagen, Håkon Ottar; Gregersen, Øyvind Weiby. (2009) Validation of isotropic deformation theory of plasticity for fracture mechanics analysis of paper materials. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, R; Goel, A; Ramaswamy, S; Gregersen, Øyvind Weiby. (2006) Visualization and characterization of high resolution 3D images of paper samples. Appita journal
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2006) Theoretical estimates of expected refining zone pressure in a mill-scale TMP refiner. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Simonsen, Galina; Saito, T; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby; Fukuzumi, H; Isogai, A. (2012) Mechanical and oxygen barrier properties of films prepared from fibrillated dispersions of TEMPO-oxidized Norway spruce and Eucalyptus pulps. Cellulose
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen peroxide bleaching of mechanical pulp fines. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2006) Pressure and vibration in the refining zone of a TMP refiner - influence of the fibre flow. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Paunonen, Sara Inkeri; Lenes, Marianne; Gregersen, Øyvind Weiby. (2010) Modeled and measured bending stiffness of polyethylene coated solid fiberboard. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Ottesen, Vegar; Larsson, Per Tomas; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby. (2019) Mechanical properties of cellulose nanofibril films: effects of crystallinity and its modification by treatment with liquid anhydrous ammonia. Cellulose
Academic article
Nguyen, Tuan Anh; Gregersen, Øyvind Weiby; Männle, Ferdinand. (2015) Thermal oxidation of polyolefins by mild pro-oxidant additives based on iron carboxylates and lipophilic amines: Degradability in the absence of light and effect on the adhesion to paperboard. Polymers
Academic article
Rusu, Marius; Liukkonen, Sari; Gregersen, Øyvind Weiby; Sirviö, Jari. (2011) The influence of fibre wall thickness and fibril angle on fibre development in the TMP process. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Holmstad, Rune; Goel, Amit; Ramaswamy, Shri; Gregersen, Øyvind Weiby. (2006) Visualization and characterization of high resolution 3D images of paper samples. Appita journal
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2012) The effect of newsprint furnish composition and sheet structure on wet pressing efficiency. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hellström, Lisbeth M.; Carlberg, Torbjörn; Engstrand, Per; Gradin, Per A.; Gregersen, Øyvind Weiby. (2013) EVALUATION OF COLLIMATED CHIPPING TECHNOLOGY FOR REDUCING ENERGY CONSUMPTION IN MECHANICAL PULPING. Pulp & paper Canada
Academic article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby; Hussain, Arshad. (2019) Phosphorylated nanocellulose fibrils/PVA nanocomposite membranes for biogas upgrading at higher pressure. Separation science and technology (Print)
Academic article
Antoine, Christine; Gregersen, Øyvind Weiby. (2008) On the three component quantification of print-throud. Part 2: Effect of the ink vehicle extraction on print optical properties. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Lenes, Marianne; Gregersen, Øyvind Weiby. (2006) Effect of surface chemistry and topography of sulphite fibres on the transcrystallinity of polypropylene. Cellulose
Academic article
Goel, Amit; Arns, C. H.; Holmstad, Rune; Gregersen, Øyvind Weiby; Bauget, F.; Averdunk, H.; Sok, R. M.; Sheppard, A. P.; Knackstedt, M.. (2006) Analysis of the impact of papermaking variables on the structure and transport properties of paper samples by X-ray microtomography. Journal of Pulp and Paper Science (JPPS)
Academic article
Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind; Toven, Kai. (2012) The web structure in relation to the furnish composition and shoe press pulse profiles during wet pressing. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2007) Fractionating - A Way to Save Bleaching Chemicals ?. Journal of Pulp and Paper Science (JPPS)
Academic article
Toven, Kai; Gregersen, Øyvind Weiby; Holmstad, Rune; Lieng, Erik. (2002) Paper Physics Seminar in Syracuse, New York. Skogindustri
Popular science article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2018) Decoupling the effect of membrane thickness and CNC concentration in PVA based nanocomposite membranes for CO2/CH4 separation. Separation and Purification Technology
Academic article
Torstensen, Jonathan Økland; Helberg, Ragne M Lilleby; Deng, Liyuan; Gregersen, Øyvind Weiby; Syverud, Kristin. (2019) PVA/nanocellulose nanocomposite membranes for CO2 separation from flue gas. International Journal of Greenhouse Gas Control
Academic article
Simonsen, Galina; Saito, T; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby; Kuramae, R; Isogai, A. (2013) TEMPO-Mediated Oxidation of Norway Spruce and Eucalyptus Pulps: Preparation and Characterization of Nanofibers and Nanofiber Dispersions. Journal of Polymers and the Environment
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Stenius, Per Johan; Kure, Kjell-Arve. (2014) Variables that affect surface potential decay of super-calendered paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby. (2016) Mixing of cellulose nanofibrils and individual furnish components: Effects on paper properties and structure. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hestmo, Rune Harald; Gregersen, Øyvind Weiby; Lamvik, Magne. (2002) Calendering of wood containing paper: A laboratory study of temperature, moisture and pressure effects on fibre wall damage. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Paunonen, Sara Inkeri; Lenes, Marianne; Gregersen, Øyvind Weiby. (2011) Moisture Content of Polyethylene Coated Solid Fibreboard after Industrial Lamination. Packaging technology & science
Academic article
Eriksen, Øyvind; Chinga, Gary; Gregersen, Øyvind Weiby. (2006) A Mathematical Morphology-Based Method for the Quantification of Fines in the Z Direction of Paper. Journal of Pulp and Paper Science (JPPS)
Academic article
Holmstad, Rune; Gregersen, Øyvind Weiby; Aaltosalmi, U; Koponen, A; Goel, A; Ramaswamy, S. (2005) Comparison of 3D structural charcteristics of high and low resolution X-ray microtomographic images of paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2006) Ink pigment location measured as the position of clay in yellow coldset ink. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Nguyen, Tuan Anh; Gregersen, Øyvind Weiby; Männle, Ferdinand; Brachet, Philippe. (2014) Effects of hydrophobic polyhedral oligomeric silsesquioxane coating on water vapour barrier and water resistance properties of paperboard. Journal of Sol-Gel Science and Technology
Academic article
Torstensen, Jonathan Ø; Liu, Ming; Jin, Soo-Ah; Deng, Liyuan; Hawari, Ayman I.; Syverud, Kristin; Spontak, Richard J.; Gregersen, Øyvind Weiby. (2018) Swelling and Free-Volume Characteristics of TEMPO-Oxidized Cellulose Nanofibril Films. Biomacromolecules
Academic article
Eriksen, Øyvind; Syverud, Kristin; Gregersen, Øyvind Weiby. (2008) The use of microfibrillated cellulose produced from kraft pulp as strength enhancer in TMP paper. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Simonsen, Galina; Hoff, Bård Helge; Lenes, Marianne; Eriksen, Øyvind; Gregersen, Øyvind Weiby. (2013) Gas-phase esterification of microfibrillated cellulose (MFC) films. Cellulose
Academic article
Gurandsrud, Karl J.; Gregersen, Øyvind Weiby. (2010) Fra sulfittmassekjemi til bioraffineri. Kjemi
Professional article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2018) Cellulose nanocrystal/PVA nanocomposite membranes for CO2/CH4 separation at high pressure. Journal of Membrane Science
Academic article
Paunonen, Sara Inkeri; Gregersen, Øyvind Weiby. (2010) The Effect of Moisture Content on Compression Strength of Boxes Made of Solid Fiberboard with Polyethylene Coating—An Experimental Study. Journal of Applied Packaging Research
Academic article
Jahan, Zaib; Niazi, Muhammad Bilal Khan; Gregersen, Øyvind Weiby. (2018) Mechanical, thermal and swelling properties of cellulose nanocrystals/PVA nanocomposites membranes. Journal of Industrial and Engineering Chemistry
Academic article
Jahan, Zaib; Bilal, Muhammad; Gul, Saeed; Sher, Farooq; Kakar, Salik Javed; Hagg, May-Britt; Gregersen, Øyvind Weiby. (2021) Mimic Enzyme Based Cellulose Nanocrystals/PVA Nanocomposite Membranes for Enrichment of Biogas as a Natural Gas Substitute. Journal of Polymers and the Environment
Academic article
Hellström, Lisbeth M.; Carlberg, Torbjörn; Engstrand, Per; Gradin, Per A.; Gregersen, Øyvind Weiby. (2012) Evaluation of collimated chipping technology for reducing energy consumption in mechanical pulping. Journal of Science & Technology for Forest Products and Processes
Academic article
Gregersen, Øyvind Weiby. (2011) A hub for research nd education. Public Service Review: European Union
Popular science article
Brodin, Fredrik Wernersson; Gregersen, Øyvind Weiby; Syverud, Kristin. (2014) Cellulose nanofibrils: Challenges and possibilities as a paper additive or coating material - A review. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Hellström, Lisbeth M.; Gradin, Per A.; Engstrand, Per; Gregersen, Øyvind Weiby. (2011) Properties of wood chips for thermomechanical pulp (TMP) production as a function of spout angle. Holzforschung
Academic article
Helberg, Ragne M Lilleby; Torstensen, Jonathan Økland; Dai, Zhongde; Janakiram, Saravanan; Chinga-Carrasco, Gary; Gregersen, Øyvind Weiby; Syverud, Kristin; Deng, Liyuan. (2020) Nanocomposite membranes with high-charge and size-screened phosphorylated nanocellulose fibrils for CO2 separation. Green Energy & Environment
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen Peroxide Bleaching of TMP Fines. Journal of Pulp and Paper Science (JPPS)
Academic article
Haugan, Marianne; Gregersen, Øyvind Weiby. (2006) Hydrogen Peroxide Bleaching of Different TMP Fibre Fractions. Journal of Pulp and Paper Science (JPPS)
Academic article
Simonsen, Galina; Roudot, Solenne; Eriksen, Øyvind; Männle, Ferdinand; Gregersen, Øyvind Weiby. (2012) The formation and characterization of sustainable layered films incorporating Microfibrillated Cellulose (MFC). BioResources
Academic article
Narvestad, Hanne; Gregersen, Øyvind Weiby; Kure, K. A.. (2013) Filler clay induced discolouration of bleached mechanical pulp. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article
Gregersen, Øyvind Weiby; Kløkstad, Geir Øivind; Hervik, Sigbjørn; Plesser, Hans Ekkehard; Pettersen, Ivar. (2017) Some factors affecting the grades of technology students. Nordic Journal of STEM Education
Academic article
Nguyen, Tuan-Anh; Männle, Ferdinand; Gregersen, Øyvind Weiby. (2012) Polyethylene/octa-(ethyl octadeca-10,13 dienoamide) silsesquioxane blends and the adhesion strength to paperboard. International Journal of Adhesion and Adhesives
Academic article
Eriksen, Oddbjørn; Gregersen, Øyvind Weiby; Krogstad, Per-Åge. (2005) Refining zone pressure in a mill-scale TMP refiner measured by fibre-optic sensors. Nordic Pulp & Paper Research Journal (NPPRJ)
Academic article

Part of book/report

Hii, Collin Ching Tyn; Gregersen, Øyvind Weiby; Chinga-Carrasco, Gary; Eriksen, Øyvind; Toven, Kai; Rosén, F.; Vomhoff, H.. (2011) Quantification of the Web Structure in Relation to Process Conditions During Wet Pressing and Furnish Composition.
Academic chapter
Gregersen, Øyvind Weiby; Syverud, Kristin; Chinga-Carrasco, Gary; Eriksen, Øyvind. (2009) The Influence of Microfibrillated Cellulose, MFC, on Paper Strength and Surface Properties.
Academic chapter

Report

Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2011) Annual Report 2010: Department of Chemical Engineering, NTNU. Department of Chemical Engineering, NTNU
Research report
Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2010) Annual report 2009: Department of Chemical Engineering, NTNU. Department of Chemical Engineering, NTNU
Research report
Helle, Torbjørn; Johnsen, Per Olav; Gregersen, Øyvind Weiby; Skinnarland, Ingrid. (1997) Methods to study the coverage of lignin rich material in fibres and paper surfaces. Tapir trykkeri, Trondheim
Research report
Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2013) Annual report 2012: Department of Chemical Engineering. Department of Chemical Engineering, NTNU
Research report
Roel, Lisbeth H Blekkan; Helmersen, Tom; Gregersen, Øyvind Weiby. (2012) Annual report 2011. Institutt for kjemisk prosessteknologi, NTNU
Research report

Student thesis or dissertation

Gregersen, Øyvind Weiby. (1998) On the assessment of effective paper web strength. NTNU
Doctoral thesis
Ottesen, Vegar; Gregersen, Øyvind Weiby; Syverud, Kristin. (2018) Cellulose Nanofibrils as Paper Additive and Coating Material: Properties, Distribution and Interaction Effects. Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Holmstad, Rune; Gregersen, Øyvind Weiby. (2004) Methods for Paper Structure Characterisation by Means of Image Analysis. Norges teknisk-naturvitenskapelige universitet
Doctoral thesis
Gregersen, Øyvind Weiby. (1998) On the assessmentof effective paper web strength. NTNU
Doctoral thesis

Teaching

Courses

Outreach