ANF/mica复合绝缘纸的制备及性能分析  

Preparation and performance analysis of ANF/mica composite insulating paper

作　　者：赵莉华[1] 滕富莉 魏佳 高萌 卞超 卓然 卿湫惋喻 任俊文 ZHAO Lihua;TENG Fuli;WEI Jia;GAO Meng;BIAN Chao;ZHUO Ran;QING Qiuwanyu;REN Junwen(College of Electrical Engineering,Sichuan University,Chengdu 610065,China;Electric Power Research Institute of CSG,Guangzhou 510623,China)

机构地区：[1]四川大学电气工程学院,四川成都610065 [2]南方电网公司电力科学研究院有限公司,广东广州510623

出　　处：《绝缘材料》2024年第11期34-39,共6页Insulating Materials

基　　金：国家自然科学基金资助项目(52107020,52377028);四川省重点研发项目(2023YFG0236);电力设备电气绝缘国家重点实验室开放基金项目(EIPE23210)。

摘　　要：以芳纶纳米纤维(ANF)为基体,天然云母(mica)为填料,通过真空辅助抽滤和热压技术制备了ANF/mica复合绝缘纸,并系统研究了复合绝缘纸的微观形貌、拉伸特性、电绝缘性能以及耐温性能。结果表明:mica与ANF在真空抽滤过程中有序叠加,mica碎片有效填补了纸张中的空隙,形成致密的“砖泥结构”,显著提高了复合绝缘纸的电气强度和绝缘性能。此外,纯ANF绝缘纸和ANF/mica-10复合绝缘纸的玻璃化转变温度均高于300℃,展现出优异的热稳定性。虽然mica的加入稍微降低了纯ANF绝缘纸的拉伸性能,但其绝缘强度和拉伸性能仍明显优于传统云母纸。An ANF/mica composite insulating paper was prepared by vacuum assisted filtration and hot pressing technology taking aramide nanofiber(ANF)as matrix and natural mica(mica)as filler.The microscopic morphology,tensile strength,electrical insulation properties,and temperature resistance of the composite insulating paper were studied systematically.The results show that the mica and ANF are superimposed in order during vacuum filtration process,and the mica fragments fill the gaps in paper effectively,creating a dense"brick-and-mortar structure",which significantly enhances the electric strength and insulating properties of the composite insulating paper.Furthermore,the glass transition temperatures of pure ANF insulating paper and ANF/mica-10 composite insulating paper are higher than 300℃,exhibiting excellent thermal stability.Although the addition of mica slightly reduces the tensile properties of pure ANF insulating paper,its insulation strength and tensile performance remain superior to traditional mica paper.

关 键 词：芳纶纳米纤维 天然云母 复合绝缘纸 拉伸特性 电气强度 

分 类 号：TM215[一般工业技术—材料科学与工程]