聚偏氟乙烯改性氧化石墨烯智能柔性膜的湿电性能研究  

Study on moisture-induced electricity properties of polyvinylidene fluoride modified graphene oxide intelligent thin films

作　　者：张明明 张津 张立军[1] 穆曼曼[1] 陈瑜 毕亚东[1] ZHANG Mingming;ZHANG Jin;ZHANG Lijun;MU Manman;CHEN Yu;BI Yadong(School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学化学化工学院,天津300384

出　　处：《天津理工大学学报》2021年第5期50-53,共4页Journal of Tianjin University of Technology

基　　金：天津市科委自然基金(20JCYBJC00420)。

摘　　要：石墨烯在湿气产电、水蒸发诱导产电、湿气响应驱动器等领域显示出强大的应用潜力,强化石墨烯基材料的湿电性能具有重要的现实意义。将一定量的聚偏氟乙烯(polyvinylidene fluoried,PVDF)引入到氧化石墨烯(graphene oxide,GO)薄膜中,在维生素C存在时,促使成膜过程中GO发生部分还原,最终形成一种均匀分散的PVDF复合膜。红外谱图显示,复合膜具有GO和PVDF的双重特征;扫描电子显微镜扫描结果表明,PVDF在GO内部呈现树叶状分布,提高了膜的稳定性;X射线衍射采集数据表明了GO存在部分还原现象;湿气响应实验表明,得到的复合材料的端电压和端电阻随湿度变化呈现规律性变化,具有很好的响应性能,为智能材料的研发奠定了基础。Graphene has shown strong application potential in the fields of moisture-induced electricity generation,water evaporation induced electricity generation,moisture responsive drivers,etc.It is of great practical significance to enhance the moisture-induced electricity performance of graphene-based materials.Here,a certain amount of polyvinylidene fluoride(PVDF)was introduced into graphene oxide(GO)film.In the presence of vitamin C,graphene oxide was partially reduced during the film formation process,and finally a uniformly dispersed PVDF composite film was formed.Infrared spectrum shows that the composite membrane has the dual characteristics of GO and PVDF.Scanning electron microscope shows that PVDF is distributed in the type of leaves inside GO,which improves the stability of the membrane.X-ray diffraction shows that there is partial reduction of GO;The moisture response experiment shows that the terminal voltage and resistance of the composite material changes regularly with the change of humidity,and has good response performance,which lays a foundation for the research and development of smart materials.

关 键 词：氧化石墨烯(graphene oxide GO) 聚偏氟乙烯(polyvinylidene fluoride PVDF) 湿度响应 智能材料 

分 类 号：TQ584.32[化学工程—精细化工]