Polymer Degradation and Stability ( IF 5.9 ) Pub Date : 2018-06-01 , DOI: 10.1016/j.polymdegradstab.2018.05.029 N. Halawani , J.L. Augé , O. Gain , V. Griseri , G. Teyssèdre , S. Pruvost
This paper presents an investigation on the current and breakdown voltage measurements in thermoset-thermoplastic blends based on an epoxy-amine/poly-etherimide phase separated material. Thermoset-thermoplastic separated blends could be a novel material for insulation applications and can be compared to epoxy/inorganic composites systems. Pure epoxy network as well as the blends with 10 wt% of PEI were studied in terms of conduction and transient currents. An ohmic behavior below the threshold field (Eth) and space-charge-limited conduction (SCLC) above Eth are pointed out. Contact emission phenomenon was investigated by means of Schottky model and seems to be valid for both materials. The addition of 5 and 10 wt% of PEI into the epoxy system showed an increase in the values of breakdown voltage with the increase of the PEI amount.
中文翻译:
聚醚酰亚胺环氧二胺共混物:室温下的电导率和击穿电压测量
本文介绍了一种基于环氧-胺/聚醚酰亚胺相分离材料的热固性-热塑性混合物中电流和击穿电压测量的研究。热固性与热塑性分离的混合物可能是用于绝缘应用的新型材料,并且可以与环氧/无机复合材料系统进行比较。研究了纯环氧网络以及含有10 wt%PEI的共混物的传导和瞬态电流。欧姆行为低于阈值场(E个)和空间电荷有限传导(SCLC)上述E个指出。通过肖特基模型研究了接触发射现象,这似乎对两种材料都有效。向环氧树脂体系中添加5wt%和10 wt%的PEI时,随着PEI量的增加,击穿电压值也随之增加。