Browsing NTNU Open by Author "Chinga-Carrasco, Gary"
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3D Printable Filaments Made of Biobased Polyethylene Biocomposites
Filgueira, Daniel; Holmen, Solveig; Melbø, Johnny K; Moldes, Diego; Echtermeyer, Andreas; Chinga-Carrasco, Gary (Journal article; Peer reviewed, 2018)Two different series of biobased polyethylene (BioPE) were used for the manufacturing of biocomposites, complemented with thermomechanical pulp (TMP) fibers. The intrinsic hydrophilic character of the TMP fibers was ... -
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 ... -
Producing ultrapure wood cellulose nanofibrils and evaluating the cytotoxicity using human skin cells
Nordli, Henriette R.; Chinga-Carrasco, Gary; Rokstad, Anne Mari; Pukstad, Brita (Journal article; Peer reviewed, 2016)Wood cellulose nanofibrils (CNF) have been suggested as a potential wound healing material, but its utilization is limited by FDA requirements regarding endotoxin levels. In this study a method using sodium hydroxide ... -
Reinforcement ability of lignocellulosic components in biocomposites and their 3D printed applications – A review
Zarna, Chiara; Opedal, Mihaela Tanase; Echtermeyer, Andreas; Chinga-Carrasco, Gary (Journal article, 2021)Biocomposites based on lignocellulosic components (e.g. pulp fibers, nanocellulose and lignin) are of interest as sustainable replacements for thermoplastic fossil-based materials, which find their application in household ... -
The Potential of Functionalized Ceramic Particles in Coatings for Improved Scratch Resistance
Rusu, Caterina Lesaint; Brodin, Malin; Hausvik, Tor Inge; Hindersland, Leif Kåre; Chinga-Carrasco, Gary; Einarsrud, Mari-Ann; Lein, Hilde Lea (Journal article; Peer reviewed, 2018)The top layer of a typical high pressure floor laminate (HPL) consists of a melamine formaldehyde (MF) impregnated special wear layer (overlay) with alumina particles. This top layer plays a crucial role in determining the ... -
Ultrapure Wood Nanocellulose - Assessments of Coagulation and Initial Inflammation Potential
Nordli, Henriette R.; Pukstad, Brita; Chinga-Carrasco, Gary; Rokstad, Anne Mari (Journal article; Peer reviewed, 2019)Using a lepirudin-based human whole blood model, we evaluated the initial inflammatory and coagulation responses of dense and porous ultrapure (<50 endotoxin units/grams) cellulose nanofibrils (CNF), of carboxylated grade. ... -
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 ...