Results 31 to 40 of about 344,234 (174)
Comment on Nanoscale Wetting of Crystalline Cellulose [PDF]
arXiv, 2022 In a recent publication, Trentin et al employed Molecular Dynamics (MD) simulations for the theoretical study of the wetting of the different polymorphs of cellulose by water, using the widely employed TIP3P model of water. Here we show that the selection of the particular water model employed in the simulations has a critical impact in the results, a ...
arxiv
Viscoelastic properties and flow instabilities of aqueous suspensions of cellulosic fibers [PDF]
arXiv, 2019 Processing of concentrated lignocellulosic biomass suspensions typically involves the conversion of the cellulose into sugars and sugars into ethanol. Biomass is usually pre-processed (i.e. via comminution, steam explosion, etc.) to form fine cellulosic fibers to be dispersed into an aqueous phase for further treatment.
arxiv
Turbulence-assisted formation of bacterial cellulose [PDF]
arXiv, 2020 Bacterial cellulose is an important class of biomaterials which can be grown in well-controlled laboratory and industrial conditions. The cellulose structure is affected by several biological, chemical and environmental factors, including hydrodynamic flows in bacterial suspensions.
arxiv
Optical and mechanical properties of nanofibrillated cellulose: towards a robust platform for next-generation green technologies [PDF]
, 2015 Nanofibrillated cellulose, a polymer that can be obtained from one of the most abundant biopolymers in Nature, is being increasingly explored due to its outstanding properties for packaging and device applications. Still, open challenges in engineering its intrinsic properties remain to address.
arxiv +1 more source
Agricultural and Biological Chemistry, 1967 A study was made of thermogravimetric analyses of microcrystalline cellulose, (Avicell), over a temperature range from 240°C to 300°C under air and nitrogen by means of a thermal balance. For comparative purpose, cellobiose and glucose were also used.
Kunio Kato, Haruko Komorita
openaire +5 more sources
Interparticle interactions mediated superspinglass to superferromagnetic transition in Ni-bacterial cellulose aerogel nanocomposites [PDF]
, 2015 The interparticle interactions in a magnetic nanocomposite play a dominant role in controlling the phase transitions superparamagnetic to superspinglass to superferromagnetic. These interactions can be tuned by controlling the size and number density of nanoparticles.
arxiv +1 more source
High-strength cellulose-polyacrylamide hydrogels: mechanical behavior and structure depending on the type of cellulose [PDF]
arXiv, 2019 Two types of high-strength composite hydrogels possessing the structure of interpenetrating polymer networks were synthesized via free-radical polymerization of acrylamide carried out straight within the matrix of plant or bacterial cellulose swollen in the reactive solution.
arxiv
Slow dynamics in a model of the cellulose network [PDF]
Polymer 48, 4849 (2007), 2007 We present numerical simulations of a model of cellulose consisting of long stiff rods, representing cellulose microfibrils, connected by stretchable crosslinks, representing xyloglucan molecules, hydrogen bonded to the microfibrils. Within a broad range of temperature the competing interactions in the resulting network give rise to a slow glassy ...
arxiv
Preparation of cellulose nanomaterials via cellulose oxalates
Carbohydrate Polymers, 2019 Nanocellulose prepared from cellulose oxalate has been discussed as an alternative to other methods to prepare cellulose nanofibrils or crystals. The current work describes the use of a bulk reaction between pulp and oxalic acid dihydrate to prepare cellulose oxalate followed by homogenization to produce nanocellulose.
Jonatan Henschen, Monica Ek, Dongfang Li
openaire +3 more sources
Disordered Cellulose-based Nanostructures for Enhanced Light-scattering [PDF]
arXiv, 2017 Cellulose is the most abundant bio-polymer on earth. Cellulose fibres, such as the one extracted form cotton or woodpulp, have been used by humankind for hundreds of years to make textiles and paper. Here we show how, by engineering light matter-interaction, we can optimise light scattering using exclusively cellulose nanocrystals.
arxiv