固体火箭技术2016，Vol.39Issue(2)：259-264,6.DOI:10.7673/j.issn.1006-2793.2016.02.019
炔基聚酰亚胺杂化树脂的制备与复合材料性能
Preparation and composite properties of ethynylpolyimide hybrid resins
摘要
Abstract
In this paper,one kind of novel ethynylpolyimide hybrid resin was prepared,and the propeties of laminate composites reinforced by silica cloth were evaluated.The synthesis was started with 4-phenylethynylphthalic anhydride (4-PEPA),3-aminophe-nylacetylene (3-APA) and 1,1,3,3-tetramethyldisiloxane (TMDS).Upon thermal treatment,silicon-containing ethynylpolyimide was prepared in a solid state with low melting point. Novol hybrid resins were readily realized by melt blending of ethynylpolyimide and phenylacetylene-terminated polysilylarylacetylene (BLJ).The results reveal that the hybrid resin has a low melting point (<80℃) ,the improvement of rehological behaviors and processing capability of Resin Transfer Molding ( RTM ) . Furthermore for the ethynylpolyimide hybrid ( with BLJ) ,the thermal cure temperature was highly decreased ( about 125~170℃) ,and the thermal re-sistance in air was enhanced (mass loss less than 5% affter heat-treated at 500℃ for 10 min in air).The mechanical properties of laminates with silica cloth as reinforcement at high temperature were comparably ideal,and the glass transition temperature ( Tg ) is less than 350℃. The ethynylpolyimide-polysilylarylacetylene hybrid resin is a kind of promising candidate for thermo-structure mate-rials in aerospace and aviation indusries.关键词
炔基聚酰亚胺/硅芳炔/杂化/催化固化/耐高温基体Key words
ethynylpolyimide/polysilylarylacetylene/hybrid/catalytically thermal cure/heat resistant matrix分类
航空航天引用本文复制引用
朱海荣,黄传进,薛凯,王明存,王志强,轩立新..炔基聚酰亚胺杂化树脂的制备与复合材料性能[J].固体火箭技术,2016,39(2):259-264,6.基金项目
航空科学基金(20111851013)。 （20111851013）
