摘要
通过相差显微图片和红外光谱分析ACS树脂[丙烯腈(AH)-氯化聚乙烯(CPE)-苯乙烯(S_t)]的结构,利用差热分析(DTA)和热失重(TG)曲线剖析ACS树脂的热性能。结果表明,ACS树脂系CPE、CPE-g-AS和AS以分散的橡胶相(CPE相)与连续的塑料相(AS相)共存的多相抗冲体系。CPE和ACS的热解聚机理均为脱氯化氢,氧化降解。ACS热稳定性明显优于CPE。
Phase contrast micro-observation and infrared analysis were carried out to study the multi-phase structure of ACS resins (acrylonitrile (AN)-chlorinated polyethylene (CPE)-styrene (St) resins), it was shown that dispersing situations of CPE rubber in ACS resins were of “Seaisland”structure, where CPE-g-AS graft copolymer formed and existed as an interfacial solubilizer between dispered rubber (CPE) and continuous plastics (AS) phase. Differential
thermal analysis (DTA) and thermogravimetry (TG) were also conducted to investigate the thermal properties of ACS resins, it was demonstrated that thermal degradation mechanism for CPE and ACS were both dehydrochlornation and oxidative degradation, thermal stability of ACS was distinctly superior to that of virgin CPE.
出处
《合成树脂及塑料》
CAS
1993年第4期41-45,共5页
China Synthetic Resin and Plastics
基金
国家自然科学基金。
