摘要
用ＤＳＣ研究了线型聚苯硫醚（ＰＰＳ）在氮气气氛中高于熔点热历程下结晶度（Ｘ＿ｃ）和热性能的变化，提出由第一次与第二次测得的Ｘ＿ｃ差异来表征ＰＰＳ氧化交联的程度。结果表明，随热历程温度提高或时间延长，氧化交联程度加深；Ｘ＿ｃ降低；玻璃化温度（Ｔ＿ｇ）提高。研究结果为长期耐高温ＰＰＳ／ＧＦ复合材料构件的热层压工艺提供技术依据。
Crystalline degree(Xc)and properties of linear polyphenylene sulfid (PPS) was measured by DSC in nitrogen enviroment. It is proposed that the variation of Xc between the first and the second analysis may used to characterize the degree of oxidizing crosslink of PPS resin.The results show that the degree of oxidizing crosslink and glass transfer temperature(Tg)increase and Xc decrease with the increasing of heat treatment temperature and time. The results may be used in heating laminating process for high temperature-resistant PPS/GF composite materials.
出处
《高分子材料科学与工程》
CSCD
北大核心
1996年第4期101-105,共5页
Polymer Materials Science & Engineering
基金
国家重点化学工程联合实验室淅江大学聚合反应工程实验室开放基金
