摘要
本文运用热重分析(TG)、差示热重分析(DTG)方法研究了聚苯硫醚/聚醚砜共混物的热降解行为,考察了热裂解气氛、共混物组成对共混物热降解行为的影响。结果表明:在空气或氮气气氛下。共混物具有不同的热降解行为,共混物的热稳定性随着聚醚矾的含量增加而提高。在空气气氛下,不但存在聚苯硫醚和聚醚砜分子内的交联,而且可能存在分子间的交联。
the thermal degradation behavior of polyphenylene sulfide (PPS)/polyethersulfone(PES)blends has been studied by TG & DTG, and the effect of the thermal degradation atmospheres and blend composition on the thermal degradation behavior of PPS/PES blends is observed. It showed that PPS/PES blends degraded differently in an air atmosphere or in a nitrogen atmosphere and that the thermal stability increased with the increasement of PES content. In the air atmosphere, there is an intramolecular cross-linking and a cross-linking between molecules in PPS/PES blends.
出处
《工程塑料应用》
CAS
CSCD
北大核心
1991年第1期7-9,共3页
Engineering Plastics Application
