Keywords study;modify;thermoplastic polyurethane;polyvinyl chloride;blends;Congo red test;dehydrochlorination;organic tin;lead salt;nitrile-butadiene rubber;

• 热塑性聚氨酯;聚氯乙烯;共混;改性;刚果红法;脱氯化氢;有机锡;铅盐;丁腈橡胶;