GO/PI复合薄膜的制备及性能研究  

Preparation and Properties of GO/PI Composite Film

作　　者：韩松锋 唐必连[2] 张冰 马传国[3] 青双桂[2] HAN Songfeng;TANG Bilian;ZHANG Bing;MA Chuanguo;QING Shuanggui(Zhengzhou Kaixue Cold Chain Co.,Ltd.,Zhengzhou 450000,China;Guilin Electrical Equipment Scientific Research Institute Co.,Ltd.,Guilin 541004,China;School of Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]郑州凯雪冷链股份有限公司,河南郑州450000 [2]桂林电器科学研究院有限公司,广西桂林541004 [3]桂林电子科技大学材料科学与工程学院,广西桂林541004

出　　处：《绝缘材料》2021年第11期126-129,共4页Insulating Materials

基　　金：国家自然科学基金资助项目(51363003);广西自然科学基金资助项目(2016JJA160040);桂林市科学研究与技术开发计划项目(2016010705);桂林电子科技大学研究生教育创新计划项目(2017YJCX121)

摘　　要：利用改进Hummers法制备氧化石墨烯(GO),再通过溶液共混法制备氧化石墨烯/聚酰亚胺(GO/PI)复合薄膜,采用XRD、TMA、TGA等对其结构和性能进行表征。结果表明:相对于不添加GO的PI薄膜而言,当复合薄膜中的GO质量分数为0.2%时,复合薄膜的力学性能得到很大提升,其中拉伸强度提高了26.77%,断裂伸长率提高了76.47%,弹性模量基本不变。当GO质量分数为0.1%时,复合薄膜的T_(5)、T_(10)最大值分别为587.3℃、603.3℃,相对于未添加GO的PI薄膜分别提高了2.44%、1.69%。说明适量GO的加入可以显著增强复合薄膜的力学性能和热学性能。A graphene oxide(GO)was synthesized by modified Hummers’method,and a graphene oxide/polyimide(GO/PI)composite film was prepared by solution blending method.The structure and the properties of the composite film were analyzed by XRD,TMA,TGA.The results show that compared with the PI film without GO,when the mass fraction of GO in composite film is 0.2%,the mechanical properties of the composite film increase obviously,the tensile strength increases by 26.77%,the elongation at break increases by 76.47%,and the elastic modulus changes little basically.When the mass fraction of GO is 0.1%,the maximum value of T_(5) and T_(10) of the composite film are 587.3℃and 603.3℃,which increase by 2.44%and 1.69%compared with that of the PI film without GO,respectively.It is indicated that the addition of GO with appropriate amount can enhance the mechanical properties and thermal properties of PI films.

关 键 词：溶液共混法 氧化石墨烯 聚酰亚胺 复合薄膜 

分 类 号：TM215.3[一般工业技术—材料科学与工程]