芳纶沉析纤维/云母复合绝缘纸的制备及性能  

Preparation and Properties of Aramid Fibrid/Mica Composite Insulating Paper

作　　者：王淼林 李俊 谢益民[1] 李新辉 冯清华[1,2] WANG Miaolin;LI Jun;XIE Yimin;LI Xinhui;FENG Qinghua(Pulp and Paper Engineering Research Institute,Hubei University of Technology,Wuhan 430068,China;Pamica Electric Material Hubei Co.,Ltd.,Xianning 437400,China)

机构地区：[1]湖北工业大学制浆造纸工程研究所,湖北武汉430068 [2]湖北平安电工科技股份公司,湖北咸宁437400

出　　处：《绝缘材料》2022年第8期32-36,共5页Insulating Materials

摘　　要：以芳纶沉析纤维作为补强材料模型引入云母纸基材料,利用湿法抄造成形制备了芳纶沉析纤维/云母复合绝缘纸,系统研究了复合纸的形貌、机械强度、绝缘性能、热稳定性、胶液渗透性等。结果表明:片状的云母和飘带状的芳纶沉析纤维相间有序堆叠,形成类似“砖-泥”结构,芳纶含量的增加使复合纸结构更加紧密,机械强度也随之提高。芳纶含量的增加填补了云母之间的空缺,复合纸透气度随之下降;复合纸厚度的增加使其电气强度和热稳定性降低,但复合纸仍然保持着较好的绝缘性能和耐温性能。Using aramid fibrid as reinforcing material and introducing into mica paper-based materials, we manufacture an aramid fibrid/mica composite insulating paper by wet paper with pulp. The morphology,mechanical strength, insulating properties, thermal stability, and glue permeability of the composite paper were systematically studied. The results show that the flake mica and ribbon-like aramid fibrid are orderly stacked to form a“brick-mud”structure. The increase of aramid content makes the composite paper structure more compact,and the mechanical strength also increases. With the increase of aramid content, the gap between mica is filled, and the air permeability of composite paper decreases. The electric strength and thermal stability of the composite paper decrease with the increase of thickness, but the composite paper still maintains good insulating properties and thermal resistance.

关 键 词：芳纶沉析纤维 云母 胶液渗透性 电气强度 

分 类 号：TM215[一般工业技术—材料科学与工程]