传感技术学报2018，Vol.31Issue(3)：329-333,5.DOI:10.3969/j.issn.1004-1699.2018.03.002
多壁碳纳米管/聚偏氟乙烯纳米复合材料薄膜在直流和交流电路中的力-电特性
The Electro-Mechanical Characteristics of Multi-Walled Carbon Nanotube/Poly(Vinylidene Fluoride)Nanocomposite Films under Direct and Alternating Current Circuits
摘要
Abstract
Multi-walled carbon nanotube(MWCNT)/Poly(vinylidene fluoride)(PVDF)films were fabricated by using solution casting method. The electro-mechanical characteristic of the filmsunder direct and alternating current circuits were studied experimentlly. The research findings include:①The strain gauges made of the MWCNT/PVDF films can sustain over 20% strain without any damage. ②In direct current circuit,the strain gauge possesses pie-zoresistivity,but the strain-resistance relationship is nonlinear. ③In alternating current circuit,the dielectic loss tan-gent is dependent on the test frequency and the MWCNT content at zero strain,but it has nothing to do with the test voltage. ④When the strain is not zero,the dielectric loss tangent changes with the viriation of the strain. Moreover, the change rate of the dielectric loss tangent is linearly proportional to the strain. The electro-mechanical character-istics of MWCNT/PVDF composite provides a promising method to design linear and flexible stain sensors for large strain detection.关键词
多壁碳纳米管/纳米复合材料/介质损耗角正切/应变片Key words
multi-walled carbon nanotube/nanocomposite/dielectric loss tangent/strain gauge分类
信息技术与安全科学引用本文复制引用
赵朝阳,赵旸周,唐强,袁卫锋..多壁碳纳米管/聚偏氟乙烯纳米复合材料薄膜在直流和交流电路中的力-电特性[J].传感技术学报,2018,31(3):329-333,5.基金项目
国家自然科学基金项目(11472232) （11472232）
西南科技大学研究生创新基金项目(16ycx109) （16ycx109）
