Electrospinnability of bionanocomposites with high nanocrystal loadings: The effect of nanocrystal surface characteristics

Electrospinnability of bionanocomposites with high nanocrystal loadings: The effect of... Article history: This paper deals with the effect of solution properties and nanoparticle surface chemistry on the Received 1 February 2016 spinnability of a chitosan/polyethylene oxide (PEO) with high concentration (50 wt%) of chitin and cel- Received in revised form 2 April 2016 lulose nanocrystals and the properties of the resultant nanocomposite fibers/fiber mats. Electrospinning Accepted 6 April 2016 dispersions with cellulose nanocrystals having sulphate surface groups showed poor spinnability com- Available online 7 April 2016 pared to chitin nanocrystals with amide and amino groups. Chitin nanocrystal based dispersions showed good spinnability and continuous fiber formation whereas cellulose nanocrystal system showed discon- Keywords: tinuous fibers and branching. The viscosity and surface tension are shown to impact this behavior, but Chitosan conductivity did not. Poor spinnability observed for cellulose nanocrystal based fibers was attributed Chitin nanocrystals to the coagulation of negatively charged cellulose nanocrystals and positively charged chitosan. The Cellulose nanocrystals study showed that the nanocrystal surface charge and interactions with the chitosan/PEO matrix have a Surface charge Electrospinning significant impact on the spinnability of bionanocomposites. Nanocomposite fibers © 2016 Elsevier Ltd. All rights reserved. 1. Introduction aging and filtration (Chattopadhyay et al., 2016; Ramakrishna et al., 2005; Torres-Giner, Gimenez, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Carbohydrate Polymers Elsevier

Electrospinnability of bionanocomposites with high nanocrystal loadings: The effect of nanocrystal surface characteristics

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0144-8617
D.O.I.
10.1016/j.carbpol.2016.04.018
Publisher site
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Abstract

Article history: This paper deals with the effect of solution properties and nanoparticle surface chemistry on the Received 1 February 2016 spinnability of a chitosan/polyethylene oxide (PEO) with high concentration (50 wt%) of chitin and cel- Received in revised form 2 April 2016 lulose nanocrystals and the properties of the resultant nanocomposite fibers/fiber mats. Electrospinning Accepted 6 April 2016 dispersions with cellulose nanocrystals having sulphate surface groups showed poor spinnability com- Available online 7 April 2016 pared to chitin nanocrystals with amide and amino groups. Chitin nanocrystal based dispersions showed good spinnability and continuous fiber formation whereas cellulose nanocrystal system showed discon- Keywords: tinuous fibers and branching. The viscosity and surface tension are shown to impact this behavior, but Chitosan conductivity did not. Poor spinnability observed for cellulose nanocrystal based fibers was attributed Chitin nanocrystals to the coagulation of negatively charged cellulose nanocrystals and positively charged chitosan. The Cellulose nanocrystals study showed that the nanocrystal surface charge and interactions with the chitosan/PEO matrix have a Surface charge Electrospinning significant impact on the spinnability of bionanocomposites. Nanocomposite fibers © 2016 Elsevier Ltd. All rights reserved. 1. Introduction aging and filtration (Chattopadhyay et al., 2016; Ramakrishna et al., 2005; Torres-Giner, Gimenez,

Journal

Carbohydrate PolymersElsevier

Published: Aug 20, 2016

References

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