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Multiply cross-linked poly(vinyl alcohol)/cellulose nanofiber composite ionic conductive hydrogels for strain sensors

Authors :
Jianzhen, Wu
Xiuzhicheng, Wu
Fujian, Yang
Xiaonan, Liu
Fanjun, Meng
Qinglin, Ma
Yuju, Che
Source :
International Journal of Biological Macromolecules. 225:1119-1128
Publication Year :
2023
Publisher :
Elsevier BV, 2023.

Abstract

Building multiple chemical crosslinks is an effective strategy to improve mechanical properties and to diversify final application of polysaccharide nanoparticles reinforced poly(vinyl alcohol) (PVA) physical hydrogels. In this work, PVA/cellulose nanofibers (CNFs) were used as composite substrate to fabricate ionic conductive hydrogels for strain sensor. Three types of characteristic crosslinks, including chemical crosslinking via boronic ester covalent bonds only, and with additional metal coordination bonding, as well as coexistence of physical crosslinks via PVA crystallites and aforementioned two kinds of chemical crosslinks, were constructed. The sample with triple crosslinks has superior mechanical strength and resistance to fatigue, and the polydopamine/Fe

Details

ISSN :
01418130
Volume :
225
Database :
OpenAIRE
Journal :
International Journal of Biological Macromolecules
Accession number :
edsair.doi.dedup.....5d9d46a66610d9339f66d377e83a7d21
Full Text :
https://doi.org/10.1016/j.ijbiomac.2022.11.173