电工技术学报2018，Vol.33Issue(11)：2620-2625,6.DOI:10.19595/j.cnki.1000-6753.tces.170537
OMMT/PES/BMI复合材料的介电性能
Dielectric Properties of OMMT/PES/BMI Composites
摘要
Abstract
The organic montmorillonite (OMMT) was obtained by using octadearyl dimethyl ammonium chloride (OTAC) modified sodium montmorillonite (Na-MMT). The allyl compound and bismaleimide (BMI) as the substrate, 2 wt％ of polyethersulfone (PES) and different contents (2-8 wt％) of OMMT were added into matrix to prepared OMMT/PES/BMI multiphase composites. The changes of infrared characteristic and microstructure of Na-MMT were analyzed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The results showed that the modification effect was obvious, and the sodium ion was replaced by OTAC organic cation, moreover lamellar structure of OMMT was clear. Dielectric properties test showed that the dielectric constant and dielectric loss tangent of the material display the trend of increased first and then decreased with the increase of mass fraction of OMMT, which reached the minimum of 3.49 and 0.0026 at 100 Hz, respectively. The volume resistivity and breakdown strength at this point were also reached the maximum, which was 19.98×1015?·m and 26.07 kV/mm, respectively, that increased by 102.4％ and 38％ compared to samples without OMMT.关键词
双马来酰亚胺树脂/聚醚砜/蒙脱土/介电性能Key words
Bismaleimide/polyethersulfone/montmorillonite/dielectric properties分类
通用工业技术引用本文复制引用
陈宇飞,郭红缘,楚洪月,汪波涛..OMMT/PES/BMI复合材料的介电性能[J].电工技术学报,2018,33(11):2620-2625,6.基金项目
哈尔滨创新人才专项资助项目(2015RAXXJ029). （2015RAXXJ029）
