四川大学学报(自然科学版)2000,Vol.37Issue(3):401-407,7.
聚苯硫醚的合成与结构研究Ⅱ.聚苯硫醚的流变性能、热性能与结晶行为
STUDY ON THE SYNTHESIS AND STRUCTURE OF POLY (PHENYLENE SULFIDE)S STUDY ON THE SYNTHESIS AND STRUCTURE OF POLY (PHENYLENE SULFIDE)S H. Study on rheological and crystalline Properties of different kinds of PPSs
摘要
Abstract
The rheological property and crystalline properties of different types of poly (phenylene Sulfide) s have been studied with rheometer and DSC. The results show that the linear PPS is not pseudoplastic fluid but expanion fluid, the high molecular PPS and modified high molecular PPS are pseudoplastic fluids and the modified high molecular PPSs tend to flow more Newtonian than do other type PPS, the commonly used PPS flows too fast to obtain the rheology data, and the branched PPS and the oxygen cured/crossed PPS are so viscous that they can not pass the rheometer. In the terms of thermal and crystalline properties, all types of PPSs have different melting point and the crystallinity, the quenching(melt at 300Cand quenched in water) and the heating in the air at 310C for 30 minutes have more effects on the commonly used PPS and the branched PPS than on the high molecular PPS and modified high molecular PPS, The crystallinity of the commonly used PPS rises slightly, the crystallinity of the modified high molecular PPS almost has no changes, and the branched PPS become the amorphous.关键词
聚苯硫醚/流变性能/结晶行为Key words
poly (phenylene Sulfide) s/rheology/crystalline分类
化学化工引用本文复制引用
严永刚,谢美菊,侯灿淑,陈永荣,伍齐贤,余自力,杨杰,龙盛如,周震..聚苯硫醚的合成与结构研究Ⅱ.聚苯硫醚的流变性能、热性能与结晶行为[J].四川大学学报(自然科学版),2000,37(3):401-407,7.基金项目
国家“八六三”计划新材料领域资助课题(863-715-007-0020) (863-715-007-0020)