摘要
利用双马来酰亚胺树脂改性烯丙基化线型酚醛树脂 (BMAN)制备了可用于RTM成型的耐高温树脂。该树脂在 1 0 0℃下 8h内的粘度小于 1 5 0mPa·s ,适用于RTM成型工艺和模压工艺。且该树脂具有良好的耐高温性能 ,DMA分析表明树脂浇铸体模量曲线拐点温度Tonset在 390℃以上 ,玻璃化温度大于4 0 0℃。石英纤维 /BMAN树脂复合材料也拥有较好的耐高温性能 ,可以在 35
A series of high heat resistance resin based on bismaleimide and allylated novolak (BMAN) for RTM are prepared. They have not only excellent moulding and shaping capability but also good high heat resistance ability for RTM.The viscosity of the resin is less than 150 mPa·s at 100℃ within 8 h,and T onset of DMA curve is higher than 390℃. Glass transfer temperature is higher than 400℃.Quartz/BMAN composites show a good heat resistance capacity and can be used at 350℃.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2004年第1期30-32,共3页
Aerospace Materials & Technology
