نتایج جستجو برای: cellulose nanocrystal

تعداد نتایج: 32689  

Journal: :Cellulose 2022

Abstract Cellulose nanocrystals (CNCs) self-assemble in water suspensions into liquid crystalline assemblies. Here, we elucidate the microstructural changes associated with nonlinear deformations (2–9 wt%) CNC through rheological analysis, that was performed parallel coupled rheology—polarized light imaging. We show material parameters from Fourier-transform rheology and stress decomposition ar...

Journal: :ACS Sustainable Chemistry & Engineering 2023

Multilayer films consisting of nanocellulose and nanochitin as oxygen barrier coatings a conventional petroleum-based moisture plastic the substrate have been widely studied for food packaging applications. A challenge with enabling recycling such hybrid multilayer materials is separating coating from substrate. In this work, we poly(ethylene terephthalate) (PET) model chitin nanowhiskers (ChNW...

2016
Sigal Meirovitch Zvi Shtein Tal Ben-Shalom Shaul Lapidot Carmen Tamburu Xiao Hu Jonathan A. Kluge Uri Raviv David L. Kaplan Oded Shoseyov

The fabrication of cellulose-spider silk bio-nanocomposites comprised of cellulose nanocrystals (CNCs) and recombinant spider silk protein fused to a cellulose binding domain (CBD) is described. Silk-CBD successfully binds cellulose, and unlike recombinant silk alone, silk-CBD self-assembles into microfibrils even in the absence of CNCs. Silk-CBD-CNC composite sponges and films show changes in ...

2017
Gilberto Siqueira Dimitri Kokkinis Rafael Libanori Michael K. Hausmann Amelia Sydney Gladman Antonia Neels Philippe Tingaut Tanja Zimmermann Jennifer A. Lewis André R. Studart

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim wileyonlinelibrary.com (1 of 10) 1604619 exiting the nozzle, is challenging. A viscoelastic response with a finite yield stress is required for filament patterning.[3] The shear-induced alignment of anisotropic building blocks, including carbon fibers,[4,5] silicon carbide whiskers,[5] alumina platelets,[3] and nanofibrillated cellulose (NFC)[6]...

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