纺丝电压是影响静电纺聚偏氟乙烯（PVDF）纤维膜β相生成和压电效应的重要因素之一。目前不同文献中对电压影响的研究结果存在不同观点。采用静电纺丝方法,在不同电压（14.0~24.0 k V）条件下制备了PVDF纤维膜,测试了不同电压下PVDF纤...纺丝电压是影响静电纺聚偏氟乙烯（PVDF）纤维膜β相生成和压电效应的重要因素之一。目前不同文献中对电压影响的研究结果存在不同观点。采用静电纺丝方法,在不同电压（14.0~24.0 k V）条件下制备了PVDF纤维膜,测试了不同电压下PVDF纤维膜的压电响应,利用FTIR和XRD方法表征了不同电压下PVDF纤维膜的β相含量。结果表明,在给定的纺丝电压范围内,PVDF纤维膜的压电响应输出和β相含量均存在最大值。通过对比分析其他研究结果,对影响试验结果的因素展开了讨论。展开更多
The polyvinylidene fluoride(PVDF)nanofiber web by electrospinning technology has the characteristics of fast response,high sensitivity,wide range of pressure,etc.,and provides new sensitive materials for the sensor te...The polyvinylidene fluoride(PVDF)nanofiber web by electrospinning technology has the characteristics of fast response,high sensitivity,wide range of pressure,etc.,and provides new sensitive materials for the sensor testing the dynamic pressure such as foot pressure during walking.Because of the nanofiber mesh structure,it must be packaged to collect piezoelectric charge and bear strong mechanical behavior before industrial practice.The PVDF nanofiber web is usually packaged by incorporating a pair of flexible electrode as well as the lead of signal output.This present work will introduce the detailed packaging process and technology of PVDF nanofiber web,and three different types of packaging electrode materials(adhesive copper foil tape,indium tin oxide(ITO)thin plate,and adhesive conductive cloth)in previously published literatures are compared by the piezoelectric response of their sensor prototypes to a periodic mechanical activation.The results showed that the surface property of packaging material had a significant effect on the piezoelectric response of sensor by PVDF nanofiber web.For PVDF nanofiber web sensor,therefore,it needed a deep investigation on the specific packaging technology in terms of different working conditions.展开更多
文摘纺丝电压是影响静电纺聚偏氟乙烯（PVDF）纤维膜β相生成和压电效应的重要因素之一。目前不同文献中对电压影响的研究结果存在不同观点。采用静电纺丝方法,在不同电压（14.0~24.0 k V）条件下制备了PVDF纤维膜,测试了不同电压下PVDF纤维膜的压电响应,利用FTIR和XRD方法表征了不同电压下PVDF纤维膜的β相含量。结果表明,在给定的纺丝电压范围内,PVDF纤维膜的压电响应输出和β相含量均存在最大值。通过对比分析其他研究结果,对影响试验结果的因素展开了讨论。
基金“111 Project”Biomedical Textile Materials Science and Technology,China(No.B07024)National Natural Science Foundation of China(No.51405079)+2 种基金China Postdoctoral Science Foundation(No.2015M570307)the Fundamental Research Funds for the Central Universities,Chinathe Jiangsu Planned Projects for Postdoctoral Research Funds,China
文摘The polyvinylidene fluoride(PVDF)nanofiber web by electrospinning technology has the characteristics of fast response,high sensitivity,wide range of pressure,etc.,and provides new sensitive materials for the sensor testing the dynamic pressure such as foot pressure during walking.Because of the nanofiber mesh structure,it must be packaged to collect piezoelectric charge and bear strong mechanical behavior before industrial practice.The PVDF nanofiber web is usually packaged by incorporating a pair of flexible electrode as well as the lead of signal output.This present work will introduce the detailed packaging process and technology of PVDF nanofiber web,and three different types of packaging electrode materials(adhesive copper foil tape,indium tin oxide(ITO)thin plate,and adhesive conductive cloth)in previously published literatures are compared by the piezoelectric response of their sensor prototypes to a periodic mechanical activation.The results showed that the surface property of packaging material had a significant effect on the piezoelectric response of sensor by PVDF nanofiber web.For PVDF nanofiber web sensor,therefore,it needed a deep investigation on the specific packaging technology in terms of different working conditions.
