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Four types of kenaf bast fibers were prepared via a combination of Wise treatments, for delignification, and alkaline treatments, for the removal of hemicellulose. Each type of kenaf bast fiber with different refining processes were nano fibrillated by grinding. Resulting, cellulose nanofiber (CNF) sheet was obtained from CNF by vacuum filtration (Scheme 1). The structures and properties of these...
Many load-bearing applications of hydrogels, such as human tissue replacements, require extremely high stiffness, strength and fracture energy, which are rarely achieved simultaneously. Here, we report cellulose nanofiber-based nanocomposite hydrogels, exhibiting highly increased stretchability but with no sacrifice in stiffness when compared with pure rehydrated cellulose nanofiber networks. The...
Polyvinyl alcohol (PVA) based hydrogels, generally prepared by freeze–thaw methods, are commonly used in the field of wound dressing. Biomedical materials require rigorous sterilization prior to use which can result in the decomposition of hydrogen bonded PVA hydrogels during conventional high temperature sterilization. In this study, a highly temperature resistant cellulose nanofiber/polyvinyl alcohol...
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