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.
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)
出处
《塑料科技》
CAS
北大核心
2018年第5期62-64,共3页
Plastics Science and Technology
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
PEI
Foaming material
Expansion ratio
Supercritical fluid
Composite foaming agent
Obturator rate