压电膜中聚偏二氟乙烯β相形成和含量提高的研究进展  

Advances in synthesis and content improvementβcrystal phase of polyvinylidene fluoride in piezoelectric film

作　　者：曹大若 周烨 朱成 胡欣 倪亚茹[1,2] 方亮[1,2] 陆春华[1,2] 许仲梓 CAO Daruo;ZHOU Ye;ZHU Cheng;HU Xin;NI Yaru;FANG Liang;LU Chunhua;XU Zhongzi(College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211800,China;Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites,Nanjing Tech University,Nanjing 211800,China;Nanjing Junhong New Materials Co.Ltd.,Nanjing 211200,China)

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京211800 [2]南京工业大学江苏先进无机功能复合材料协同创新中心,江苏南京211800 [3]南京君弘新材料有限公司,江苏南京211200

出　　处：《南京工业大学学报（自然科学版）》2023年第1期1-11,44,共12页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省自然科学基金面上项目(BK20191364)。

摘　　要：聚偏二氟乙烯(PVDF)作为一种优秀的聚合物压电材料能够达到工业或日常应用的需求,同时还具有优良的柔韧性、耐候性、耐冲击性和生物相容性,环境适应能力强,在压电应用领域拥有巨大的市场潜力。作为一种半结晶高分子材料,PVDF的压电性主要来源于其内部全反式TTTT构象的β相。因此,对PVDF的β相含量的提高是研究和提高PVDF压电性能的重要途径。本文旨在简要总结PVDF的β相形成和含量提高的主要策略,从原料选择、制备工艺和后处理方法等方面综述了影响PVDF中β相含量的因素,分析各种策略的优势与不足,并对未来发展趋势进行了展望。Polyvinylidene fluoride(PVDF)is an excellent piezoelectric polymeric material with flexibility,weatherability,impact resistance,biocompatibility and strong environmental adaptability,which can meet the needs of industrial or daily applications.PVDF has a huge market potential in piezoelectric applications.Piezoelectric properties of PVDF as a semi crystalline polymer material mainly come fromβcrystalline phase that is attributed to all trans TTTT conformation.Therefore,the increase of PVDFβphase content is an important way to study and improve piezoelectric properties of PVDF.This paper aimed to explore the strategies to improve PVDFβphase,comprehensively reviewed factors affectingβphase in PVDF from aspects of raw material selection,preparation technology and post-treatment methods.The related investigations done in recent years were summarized and the future development trend was prospected.

关 键 词：压电膜 聚偏二氟乙烯(PVDF) Β相 压电性能 共聚 共混 填料复合 掺杂改性 

分 类 号：TB332[一般工业技术—材料科学与工程]