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The present study aims to theoretically model and verify the mechanical behavior of electrospun fibers of poly(vinyl alcohol) (PVA) reinforced by nanohydroxy apatite (nHAp) and cellulose nanofibers (CNF), the three composites designated as PVA/nHAp, PVA/CNF, and PVA/nHAp/CNF. Tensile tests and AFM nanoindentation studies were used to measure tensile modulus of electrospun scaffolds and single fibers...
Cellulose nanofibers were isolated from wheat straw by a chemical-mechanical procedure. Chemical process eliminates non-cellulosic materials. This process includes acid hydrolysis, alkali treatment, and bleaching. Since the acid hydrolysis is a critical step in nanofiber extraction, its conditions were optimized based on the highest degree of crystallinity using the statistical response surface...
In the present study, cellulose nanofibers composite films were manufactured based on thermoplastic starch. Nanofibers were extracted from rice straw employing a developed chemo-mechanical method. In the chemical step, almost all of non-cellulosic components were removed and a white pulp of cellulose microfibers was obtained. Then, a diluted suspension of fibers was ultrasonicated to destruct intermolecular...
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