摘要
环氧树脂耐高温基体在航空航天、特种涂料、电气及半导体电子等高新技术领域得到了广泛的应用。环氧树脂的性能在很大程度上受环氧树脂固化剂的影响,对比了三种不同胺固化剂对环氧树脂固化的影响,结果显示实验室自制的NH-POSS固化剂优于脂肪族和芳香族类胺固化剂,NH-POSS固化剂可以提高整个固化体系的耐高温性能,使其玻璃化转变温度高达234℃,是一种耐高温树脂。采用n级反应理论的动力学模型,并对热力学数据进行分析,拟合出了NH-POSS环氧树脂体系的固化工艺条件,为NH-POSS固化环氧树脂的加工工艺提供了理论依据。
High temperature resistance epoxy resin is widely used in high-tech fields,such as electrics,semiconductors,specialty coatings and aerospace.The performance of epoxy resin is largely influenced by the hardener.In this paper,the effect of three different epoxy hardeners on the curing process was investigated.The results showed that the laboratory-made NH-POSS hardener was superior to the other two amine hardeners.NH-POSS improved high temperature stability of the entire curing system,its glass transition temperature was up to 234°C.The kinetic model based on n-stage reaction theory was established.The thermodynamic data was analyzed and the NH-POSS epoxy resin curing process conditions was fitted,which could provide a theoretical basis for the processing of NH-POSS cured epoxy resin.
作者
蒋荣亮
魏刚
徐洪耀
JIANG Rong-liang;WEI Gang;XV Hong-yao(Donghua University,Shanghai 201620,China)
出处
《当代化工》
CAS
2019年第9期1959-1963,共5页
Contemporary Chemical Industry
基金
国家自然科学基金项目经费资助(21671037,21771026和21471030)
