Superhydrophobic highly flexible doubly cross-linked aerogel/carbon nanotube composites as strain/pressure sensors.

Journal of Materials Chemistry. B, Materials for Biology and Medicine
Guoqing ZuKazuki Nakanishi

Abstract

We report novel superhydrophobic highly flexible composites based on a doubly cross-linked (DCL) aerogel and carbon nanotubes (CNTs) for strain/pressure sensing. The DCL aerogel/CNT composite is prepared by radical polymerization of vinylmethyldimethoxysilane and vinyldimethylmethoxysilane, respectively, followed by hydrolytic co-polycondensation of the obtained polyvinylmethyldimethoxysilane and polyvinyldimethylmethoxysilane, combined with the incorporation of CNTs. Benefiting from the flexible methyl-rich DCL structure of the aerogel and conductive CNTs, the resultant DCL aerogel/CNT composite combines superhydrophobicity, high compressibility, high bendability, high elasticity, and strain- and pressure-sensitive conductivity. We demonstrate that the composite can be applied as a high-performance strain/pressure sensor for the detection of arterial pulse waves and joint bending with high sensitivity and high durability against humidity.

References

May 19, 2006·Journal of Colloid and Interface Science·A Venkateswara RaoG M Pajonk
May 10, 2007·Accounts of Chemical Research·Nicholas Leventis
Sep 7, 2013·Angewandte Chemie·Gen HayaseKazuki Nakanishi
Jan 21, 2017·Chemistry : a European Journal·Taiyo ShimizuKazuki Nakanishi
Feb 6, 2017·Angewandte Chemie·Christoph ZieglerAlexander Eychmüller
Mar 24, 2017·Angewandte Chemie·Lukas HuberMatthias M Koebel
Feb 23, 2018·Angewandte Chemie·Zhi-Long YuShu-Hong Yu
Jun 9, 2018·ACS Applied Materials & Interfaces·Jung-Hwan OhIl-Kwon Oh
Aug 10, 2018·ACS Applied Materials & Interfaces·Jian Zhou, You-Lo Hsieh
Oct 6, 2018·ACS Applied Materials & Interfaces·Wenlang LiangJiyu Fang

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BETA
X-ray
scanning electron microscopy

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