Blar i Institutt for kjemisk prosessteknologi på forfatter "Chinga-Carrasco, Gary"
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Mechanical properties of cellulose nanofibril films: effects of crystallinity and its modification by treatment with liquid anhydrous ammonia
Ottesen, Vegar; Larsson, Per Tomas; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby (Journal article; Peer reviewed, 2019)The influence of cellulose crystallinity on mechanical properties of cellulose nano-fibrils (CNF) was investigated. Degree of crystallinity (DoC) was modified using liquid anhydrous ammonia. Such treatment changes crystal ... -
Nanocomposite membranes with high-charge and size-screened phosphorylated nanocellulose fibrils for CO2 separation
Helberg, Ragne M Lilleby; Torstensen, Jonathan Økland; Dai, Zhongde; Janakiram, Saravanan; Chinga-Carrasco, Gary; Gregersen, Øyvind Weiby; Syverud, Kristin; Deng, Liyuan (Peer reviewed; Journal article, 2020)In this study, cellulose nanofibrils (CNF) of high charge (H-P-CNF) and screened size (H-P-CNF-S) were fabricated by increasing the charge of phosphorylated cellulose nanofibrils (P-CNFs) during the pre-treatment step of ... -
Porous filters of nanofibrillated cellulose
Sandberg, Linn Ingunn C. (Master thesis, 2011)Filters for air purification are predominantly produced of synthetic and non-biodegradable materials. In this work, a range of various air filters have been prepared from 100% pure cellulosic material, with the goal to ... -
Viability and properties of roll-to-roll coating of cellulose nanofibrils on recycled paperboard
Ottesen, Vegar; Kumar, Vinay; Toivakka, Martti; Chinga-Carrasco, Gary; Syverud, Kristin; Gregersen, Øyvind Weiby (Journal article; Peer reviewed, 2017)Cellulose nanofibrils (CNF) are, due in large part to excellent gas barrier properties, a potential environmentally friendly alternative to inorganic and petrochemical coatings of e.g. paperboard in packaging applications. ... -
Viscoelastic properties of nanocellulose based inks for 3D printing and mechanical properties of CNF/alginate biocomposite gels
Heggset, Ellinor Bævre; Strand, Berit Løkensgard; Sundby, Kristin Weel; Simon, Sebastien Charles; Chinga-Carrasco, Gary; Syverud, Kristin (Journal article; Peer reviewed, 2019)Inks for 3D printing based on cellulose nanofibrils (CNFs) or mixtures of CNFs and either cellulose nanocrystals (CNCs) or alginate were assessed by determining their viscoelastic properties i.e. complex viscosity and ...