聚酰亚胺纤维膜分离特性试验研究

Experimental Research on Separation Characteristics of Polyimide Fiber Membrane

通过对不同膜材料的分离系数以及基本特性的比较,选择了耐高温、耐高压、分离系数高的聚酰亚胺作为膜材料。以某型国产聚酰亚胺中空纤维膜组件为研究对象,搭建中空纤维膜分离性能测试试验台,针对分离性能随引气压力、引气温度、飞行高度等因素的变化规律开展了试验研究。研究结果可以为后续聚酰亚胺纤维膜的试验设计、分离特性研究提供参考。

By comparing the separation coefficient and basic characteristics of different membrane materials,polyimide with high temperature resistance,high pressure resistance and high separation coefficient is selected as the membrane material.Taking a certain type of domestic polyimide hollow fiber membrane module as the research object,a test bench for the separation performance of hollow fiber membrane is built,and experimental research is carried out on the variation law of separation performance with bleed air pressure,bleed air temperature,flight height and other factors.The results can provide a reference for the subsequent experimental design and seperation characteristics of polyimide fiber membrane.