中密度芳纶纸板的制备及应用研究  

Preparation and Application of Medium-density Aramid Pressboard

作　　者：鲍时宽 杨军[2] 宋欢 刘含茂[2] 梁西川 黎勇 李正胜 BAO Shikuan;YANG Jun;SONG Huan;LIU Hanmao;LIANG Xichuan;LI Yong;LI Zhengsheng(Zhuzhou Times Fiber Pioneer Material Technology Co.,Ltd.,Zhuzhou 412100,China;Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007,China;CRRC Zhuzhou Electric Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]株洲时代华先材料科技有限公司,湖南株洲412100 [2]株洲时代新材料科技股份有限公司,湖南株洲412007 [3]中车株洲电机有限公司,湖南株洲412001

出　　处：《绝缘材料》2022年第9期23-27,共5页Insulating Materials

基　　金：“科技助力经济2020”重点专项(2020YFB0312000ZL)。

摘　　要：以间位芳纶短切纤维和沉析纤维为原料制备了一种中密度芳纶纸板,研究了短切纤维长度、单层浆层定量、纸坯水分含量对芳纶纸板性能的影响,并测试了芳纶纸板的常规性能、相容性和加工性能。结果表明:当短切纤维长度为7 mm、单层浆层定量为64 g/m~2和纸坯水分含量为63%时,芳纶纸板具备优异的电气性能与力学性能,与硅油和合成酯油具有良好的相容性,且具备良好的加工性能,满足牵引变压器和海上风电油浸式变压器的应用要求。A medium-density aramid pressboard was prepared by using meta-aramid chopped fiber and precipitated fiber as raw materials, the effects of chopped fiber length, grammage of single pulp layer, and moisture content of paper billet on the properties of the aramid pressboard were studied. The conventional properties,compatibility, and processing performance of the aramid pressboard were studied. The results show that when the chopped fiber length is 7 mm, the grammage of single pulp layer is 64 g/m~2, and the moisture content of paper billet is 63%, the aramid pressboard has excellent electrical and mechanical properties, good compatibility with synthetic ester transformer oil and silicone transformer oil, and good processing performance, which meets the application requirements of traction transformer and offshore wind power oil-immersed transformer.

关 键 词：中密度 芳纶纸板 相容性 合成酯油 硅油 绝缘筒 

分 类 号：TM215.6[一般工业技术—材料科学与工程]