新型炭材料（中英文）2025，Vol.40Issue(5)：1154-1168,15.DOI:10.1016/S1872-5805(25)60985-1
基于高温应用的热环化静电纺丝GO/PAN纳米纤维压电传感器
A thermally-cyclized electrospun GO/PAN nanofiber piezoelectric sensor for high-temperature applications
摘要
Abstract
High-temperature piezoelectric sen-sors are very important in severe environments such as fire safety,aerospace and oil drills,however,most current sensors are not heat res-istant(<300 °C)and are fragile,which limits their use,especially in high-temperature environ-ments.A high-temperature resistant flexible piezoelectric film based on graphene oxide(GO)/polyacrylonitrile(PAN)composites was prepared by electrospinning and thermal treat-ment.It was packed into a micro-device,which could work continuously at 500 ℃.The intro-duction of GO significantly increased the mechanical properties of the PAN nanofibers because the oxygen-containing func-tional groups(electronegative groups)on the surface of the GO initiated a nucleophilic attack on the PAN molecule during heat treatment,enabling the GO to initiate the cyclization of the PAN at lower heat-treatment temperatures.In addition,the abund-ant oxygen-containing functional groups on GO acted as pro-oxidants to hasten the oxidation of PAN during heat treatment.The effects of GO content and heat treatment temperature on the properties of the nanofiber films were investigated.A GO/PAN nanofiber piezoelectric sensor heat-treated at 300°C had a 9.10 V and 2.25 μA peak output,which are respectively 101.3%and 78.6%higher than those of the untreated films.Cyclic testing over 5000 cycles at 350℃ confirmed the stable out-put performance of the GO/PAN nanofiber piezoelectric sensor.Furthermore,a sensor heat-treated at 400℃ had a sensitivity of 1.7 V/N,which is 83.5%higher than that of an untreated one.The results show that the prepared GO/PAN nanofiber piezo-electric sensor combines high temperature resistance,high flexibility,stability and high sensitivity,and may have broad applic-ations in high temperature environments such as the aerospace and petroleum industries.关键词
GO/PAN纳米纤维/压电/耐高温/热环化/全柔性Key words
GO/PAN nanofiber/Piezoelectric/High-temperature/Thermal-cyclization/Fully flexible分类
化学工程引用本文复制引用
李玮栋,李银辉,殷荣艳,范凯,高飞,梁建国,李朋伟,边桂彬..基于高温应用的热环化静电纺丝GO/PAN纳米纤维压电传感器[J].新型炭材料（中英文）,2025,40(5):1154-1168,15.基金项目
This work was supported by Open Project of State Key Laboratory of Intelligent Manufacturing Equipment and Technology(IMETKF2025016),Key Research and Development Special Projects of Luli-ang city and University cooperation(2022XDHZ08),The National Natural Science Foundation of China(52075361,52205593),Shanxi Province Science Foundation for Youths(20210302124046),Major Sci-ence and Technology Project of Shanxi Province(20201102003). 智能制造装备与技术国家重点实验室开放项目(IMETKF2025016) （IMETKF2025016）
吕梁市与大学合作重点研发专项(2022XD-HZ08)、国家自然科学基金(52075361,52205593) （2022XD-HZ08）
山西省青年科学基金(20210302124046) （20210302124046）
山西省重大科技专项(20201102003). （20201102003）
