High-temperature-resistant modified polypropylene hollow fiber membrane as well as preparation method and application thereof

The invention relates to the technical field of modified polypropylene hollow fiber membrane production, in particular to a high-temperature-resistant modified polypropylene hollow fiber membrane and a preparation method and application thereof. Isotactic polypropylene, nano calcium carbonate, ethyl salicylate, sodium hydrogen sulfate, maleic acid and lanthanum chloride are used as raw materials, and the high-temperature-resistant modified polypropylene hollow fiber membrane is obtained through raw material proportion setting, feeding sequence and compounding effect of all the components after mixing treatment. Through the compounding effect of the raw materials, the prepared hollow fiber membrane can be normally used at 150-160 DEG C, the mechanical strength is obviously improved, and the utilization rate in the aspects of high-temperature gas separation and organic steam recovery is greatly improved. 本发明涉及改性聚丙烯中空纤维膜生产技术领域，具体为耐高温改性聚丙烯中空纤维膜及其制备方法和应用。以等规聚丙烯、纳米碳酸钙、水杨酸乙酯、硫酸氢钠、马来酸、氯化镧为原料，通过原料比例设定，加料顺序以及各组分的复配的作用，