Results 231 to 240 of about 8,544 (255)
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Microfibrillated Cellulose Reinforced Poly(vinyl alcohol) Composites
Advanced Materials Research, 2013Microfibrillated cellulose (MFC) was successfully prepared from lyocell fibers using combined homogenization and sonication treatments. MFC fibrils with a mean diameter of ~365 nm were observed, after the lyocell fibers with diameters of ~10 μm were mechanically treated for 60 min.
Tanpichai, S, Sampson, WW, Eichhorn, SJ
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Cellular biocomposites from polylactide and microfibrillated cellulose
Journal of Cellular Plastics, 2012This paper describes the production of “green” microfibrillated cellulose-reinforced polylactide cellular biocomposites using a wet mixing technique combined with supercritical carbon dioxide foaming. The effect of composition on the morphology, density and compression modulus of foams was investigated for different processing parameters, along with ...
Boissard, C. +4 more
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Localization of Crystalline Allomorphs in Cellulose Microfibril
Biomacromolecules, 2009We report an FTIR spectroscopic technique combined with intracrystalline deuteration and rehydrogenation of cellulose samples to investigate the localization of I(alpha) and I(beta) domains within a cellulose microfibril obtained from I(alpha)-rich algae.
Yoshiki, Horikawa, Junji, Sugiyama
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Journal of Applied Polymer Science, 2000
The ultrastructure and morphology of potato (Solanum tuberosum L.) tuber cells were investigated by optical, scanning, and transmission electron microscopies. After removal of starch granules, pectins and hemicelluloses were solubilized under alkaline conditions.
Dufresne, A., Dupeyre, D., Vignon, M.R.
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The ultrastructure and morphology of potato (Solanum tuberosum L.) tuber cells were investigated by optical, scanning, and transmission electron microscopies. After removal of starch granules, pectins and hemicelluloses were solubilized under alkaline conditions.
Dufresne, A., Dupeyre, D., Vignon, M.R.
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Pectin/carboxymethyl cellulose/microfibrillated cellulose composite scaffolds for tissue engineering
Carbohydrate Polymers, 2013Highly porous three-dimensional scaffolds made of biopolymers are of great interest in tissue engineering applications. A novel scaffold composed of pectin, carboxymethyl cellulose (CMC) and microfibrillated cellulose (MFC) were synthesised using lyophilisation technique. The optimised scaffold with 0.1% MFC, C(0.1%), showed highest compression modulus
Neethu, Ninan +5 more
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Morphological Structure of Cellulose Microfibrils
1985The 0.39 nm resolution lattice images of cellulose microfibrils in the cell wall of Valonia macrophysa could be successfully recorded from microfibrils prepared by disintegration as well as ultrathin sectioning. The results obtained from direct imaging of lattice lines contradict the models of the microfibrils in which the crystalline sub-elements ...
H. Harada, J. Sugiyama
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Process for the production of microfibrillated cellulose and produced microfibrillated cellulose
2010A process for producing microfibrillated cellulose comprises providing a slurry comprising cellulosic fibers, treating the slurry with an enzyme, mechanically treating the slurry so that the fibers are disintegrated wherein the mechanical treatment and the treatment with the enzyme is performed simultaneously in a single treatment step.
Heiskanen, Isto +4 more
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Fractional study of the microfibrillated cellulose
TAPPI Journal, 2014The extremely high aspect ratios of minuscule lignocellulosic particles make analysis and characterization problematic. New methods to quantify the size, shape, and structure of cellulose microparticles are needed. The main objective of this research has been to study the potential of a novel fractional analysis method for microparticles.
Laitinen Ossi, Niinimäki Jouko
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Microfibrillated cellulose/cellulose acetate composites: Effect of surface treatment
Journal of Polymer Science Part B: Polymer Physics, 2009AbstractMicrofibrillated cellulose (MFC), which consists of a web‐like array of cellulose fibrils having a diameter in the range of 10–100 nm, was incorporated into a cellulose acetate (CA) matrix to form a totally biobased structural composite. Untreated and a 3‐aminopropyltriethoxysilane (APS) surface treated MFC was combined with a CA matrix by film
Jue Lu, Lawrence T. Drzal
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Cellulose microfibril assembly and orientation: recent developments
Journal of Cell Science, 1985ABSTRACT A brief history of the literature dealing with cellulose microfibril assembly is presented, and a current summary of cellulose microfibril synthesizing complexes among eukaryotic cells is given. Terminal complexes not described before include the following: linear terminal complexes (TCs) with three rows in Eremosphaera ...
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