南京大学学报（自然科学版）2023，Vol.59Issue(6)：1077-1084,8.DOI:10.13232/j.cnki.jnju.2023.06.017
乙基纤维素电纺纤维调控PDMS/CNT柔性复合材料性能的研究
Properties of PDMS/CNT flexible composite materials improved with ethyl cellulose electrospinning fiber
摘要
Abstract
In this paper,the mechanical and electrical properties of PDMS/CNT flexible composites controlled by ethyl cellulose(EC)electrospun fiber were studied.The results showed that after the introduction of electrospun EC fibers,the tensile strength of PDMS/CNT flexible composite materials increased from 1.73 MPa to 3.97 MPa,the fracture strain increased from 86.56％to 115.00％,and the toughness increased from 0.61 MJ·m-3 to 1.58 MJ·m-3;The tensile strength of the notched PDMS/CNT flexible composite material increased from 0.34 MPa to 1.57 MPa,the fracture strain increased from 18.85％to 40.12％,and the toughness increased from 0.04 MJ·m-3 to 0.27 MJ·m-3;The conductive resistance decreased from 550 kΩ to 228 kΩ,and the conductivity increased.The stress sensor sensitivity and cyclic stability of PDMS/CNT composite material assembly based on EC electrospun fiber regulation have been effectively improved.After introducing 1 wt％EC electrospun fiber,the sensitivity of the flexible stress sensor has been increased from 0.341 kPa1 to 4.922 kPa-1,a 14 fold increase,after the introduction of electrospun EC fibers,the cyclic resistance change rate curve of the sensor becomes relatively more regular,with less abnormal fluctuations.关键词
PDMS/乙基纤维素/碳纳米管/电纺纤维/柔性应力传感器Key words
PDMS/ethyl cellulose/carbon nanotubes/electrospun fibers/flexible stress sensors分类
化学化工引用本文复制引用
王鼎,许睿,何磊,窦柳皓,崔举庆,冯富奇,刘方方..乙基纤维素电纺纤维调控PDMS/CNT柔性复合材料性能的研究[J].南京大学学报（自然科学版）,2023,59(6):1077-1084,8.基金项目
国家自然科学基金(31470590) （31470590）
