纳米SiO_2增强聚酰亚胺纤维纸基材料的研究  

Improving the properties of polyimide fiber paper-based materials by nanosilica

作　　者：陆赵情[1] 魏宁[1] 丁威 张美娟 LU Zhao-qing WEI Ning DING Wei ZHANG Mei-juan(College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science Technology, Xi^an 710021, China Zhejiang Xianhe Special Paper Co. , Ltd. , Quzhou 324022, China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]浙江仙鹤特种纸有限公司,浙江衢州324022

出　　处：《陕西科技大学学报（自然科学版）》2017年第1期6-10,共5页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅科技新星专项项目(2015KJXX-34);陕西省教育厅产业化培育计划项目(15JF012);陕西省教育厅重点实验室科研计划项目(12JS018)

摘　　要：以聚酰亚胺纤维和对位芳纶纤维为原料,考察了纳米SiO_2添加量对聚酰亚胺纤维纸页力学性能和电气性能的影响结果表明,当纳米SiO_2添加量为10%时,纸页的抗张指数和耐压强度最大,达到32.6N·m/g和8.45Kv/mm,与未添加纳米SiO_2的聚酰亚胺纤维纸基材料相比,抗张指数提高了27.14%,耐压强度提高了70.71%,此时,纸页的介电常数和介电损耗正切值达到最小,为1.02F/m和0.142 9;当纳米SiO_2添加量为20%时,纸页的撕裂指数最大,达23.9mN·m2/g.Polyimide fiber paper was made of polyimide fiber and para-aramid fiber as raw ma-terial, the influence on mechanical and electrical properties of paper by the content of nanosil-ica was analyzed. The results showed that the tensile index and dielectric strength of the pa-per were the best,which were 32. 6 N· m/g and 8. 45 Kv/mm when the dosage of nanosilica was 10%,its tensile index increased by 27. 14% and dielectric strength increased by 70.71% compared with the polyimide fiber paper without nanosilica,while the dielectric constant and dielectric loss were minimum, which were 1. 02 F/m and 0. 142 9. The tearing index was the best when the dosage of nanosilica was 20% ,it was 23. 9 mN ·m2/g

关 键 词：聚酰亚胺纤维纸 纳米SIO2 力学性能 电气性能 

分 类 号：TQ342.73[化学工程—化纤工业]