摘要
本文研究了新型改性双马来酰亚胺树脂(JM)及PBO/JM复合材料的力学性能和耐热性能。分别采用旋转粘度计对JM树脂的粘度进行了测试,采用材料万能试验机对树脂浇铸体及PBO/JM复合材料的力学性能进行了测试,采用DMA和TGA对树脂及其复合材料的玻璃化转变温度和热分解温度进行了分析。结果表明,JM树脂具有较好的成型工艺性,能够满足复合材料干法、湿法缠绕成型工艺的要求;JM树脂具有较高的强度和模量,但固化物脆性较大,其力学性能有待进一步改善;JM树脂的玻璃化转变温度和5%热失重温度分别达到366.6和410.4℃;PBO/JM复合材料的耐热性能远高于PBO/环氧复合材料。
The mechanical and heat resistance properties of a novel kind of bismaleimide resin(JM) and PBO/JM composites were studied in this paper.The viscosity of JM resin was analyzed by rotary viscometer.Mechanical properties of JM resin and PBO/JM composite were tested by a universal testing machine.The glass transition temperature and decomposition temperature of the resin and composites were characterized by DMA and TGA analysis respectively.The results indicated that JM resin exhibits excellent manufacturability,the resin can be used for composites preparation by filament winding technology both in impregnating and wet-winding process.Although with high strength and modulus,JM resin casting body was brittle,mechanical properties of the resin should be improved.The glass transition temperature and the 5% weight loss temperature of JM resin were 366.6 and 410.4℃ respectively.Heat resistance property of PBO/JM composite was higher than PBO/epoxy composite.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2012年第6期14-17,共4页
Fiber Reinforced Plastics/Composites
基金
"十二五"航天支撑技术项目(617010802)
