Conductive and superhydrophobic lignin/carbon nanotube coating with nest-like structure for deicing, oil absorption and wearable piezoresistive sensor.

Autor: Wang E; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Huang W; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Miao Y; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Jia L; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Liang Y; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Wang S; Center for Renewable Carbon, University of Tennessee, Knoxville, TN 37996, USA., Zhang W; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Zou LH; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China., Zhong Y; Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China. Electronic address: zhony@caf.ac.cn., Huang J; Bamboo Industry Institute, Zhejiang A&F University, Hangzhou 311300, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China. Electronic address: jdhuang@zafu.edu.cn.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Oct; Vol. 278 (Pt 2), pp. 134886. Date of Electronic Publication: 2024 Aug 19.
DOI: 10.1016/j.ijbiomac.2024.134886
Abstrakt: The development of multifunctional coatings is a trend. Here, a conductive and superhydrophobic coating with nest-like structure was prepared on the wood or polyurethane (PU) sponge by spraying or soaking methods. The coating contains lignin and carboxylated multi-wall carbon nanotubes (MWCNT) as the main materials, both methyl trimethoxysilane (MTMS) and polydimethylsiloxane (PDMS) as the modifiers. And benefiting from the protective effect of the nest-like structure, the coating exhibits excellent abrasion resistance (withstanding 43 abrasion cycles), stability, and UV resistance (little change in water contact angle after 240 h of ultraviolet (UV) irradiation) by optimizing the proportions. Additionally, the coating provides eminent deicing (complete removal after 142.7 s) and self-cleaning on the wood, as well as the superior sensing performance and oil absorption (15.0-49.6 g/g for various oils) on the PU sponge. When assembled into compressible piezoresistive sensor, it could clearly sense the signals of rapid, short, circulation, different speed and deformation, possessing a prosperous wearable device prospect. It is envisaged that the coating supplies a new platform for superhydrophobicity, wearable electronics and oil absorption.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024. Published by Elsevier B.V.)
Databáze: MEDLINE
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