聚合物超临界流体模压发泡综合实验设计

Comprehensive Experimental Design of Supercritical Fluid Compression-molding Foaming of Copolymer Polypropylene Sheet

本综合实验设计选用发泡性能更为优异的共聚聚丙烯(CPP)材料,通过超临界流体模压发泡的方式制备了共聚聚丙烯发泡板材(CPPB),研究了多个发泡参数对CPP发泡行为的影响,测定了发泡材料的力学性能。本实验设计涵盖了聚合物发泡材料的制备、泡孔形态表征、力学性能研究与评价,学生通过实验能够学习聚合物发泡材料的加工工艺,理解聚合物物理模压发泡的原理,较为系统地完成聚合物发泡材料加工成型、结构表征和性能测试三个阶段的综合训练。

This comprehensive experiment selected copolymer polypropylene(CPP)material with better foaming performance,and prepared CPPB foam sheets through supercritical fluid molding foaming.The influences of multiple foaming parameters on the foaming behavior of CPP,the mechanical properties of foams were studied.This experimental design covers foam preparation,cell morphology characterization,mechanical properties evaluation.Through the experiments,students can learn the foam processing technology,understand the principles of compression-molding foaming,and the evolution mechanism of cell structure,and will get a systematical training in foam preparation,material structural characterization,and performance testing.