超临界流体法制备聚醚酰亚胺泡沫的研究  

Study on Preparation of PEI Foam by Supercritical Fluid Method

作　　者：常健飞 于翔 张湘科 马旭辉 何杰 Chang Jianfei;Yu Xiang;Zhang Xiangke;Ma Xuhui;He Jie(Polymer Science （Shenzhen） New Materials Co., LTD, Guangdong Engineering Plastics Engineering and Technology Research Center, Shenzhen Polymer Matrix Composites Engineering Labloatory,Shenzhen 518103,China)

机构地区：[1]深圳市科聚新材料有限公司广东省工程塑料工程技术研究中心深圳树脂基复合材料工程实验室

出　　处：《塑料科技》2018年第5期62-64,共3页Plastics Science and Technology

摘　　要：研究了超临界流体发泡聚醚酰亚胺（PEI）的制备方法,采用复合超临界流体发泡剂解决了PEI发泡倍率不高的问题。结果表明：制备的发泡粒子表观密度15-20 kg/m^3,闭孔率100%,泡孔直径小于100μm,发泡倍率高达50-60。采用物理发泡法,加工过程没有改变原树脂的化学结构和性能,可以最大程度保持聚PEI树脂的特性。The poly（ether imide）（PEI） foams were prepared by a supercritical fluid foaming method, and their foaming behaviors and foaming performance were investigated. The results show that the apparent density of the prepared foamed particles is 15-20 kg/m^3, the obturator rate is 100%, the cell diameter is less than 100 μm, and the foaming rate is as high as 50-60 time. The physical foaming method does not change the chemical structure and properties of the original resin, and it can maintain the properties of the PEI resin to the greatest extent.

关 键 词：聚醚酰亚胺 泡沫材料 发泡倍率 超临界流体 复合发泡剂 闭孔率 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]