RTM用R801树脂工艺及性能  

Processing and Properties of R801 Resin for RTM

作　　者：孙宝岗[1] 邓火英[1] 林治峰[1] 谭朝元[1] 谭珏[1] 

机构地区：[1]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2012年第4期78-80,共3页Aerospace Materials & Technology

摘　　要：对一种新型RTM用双马来酰亚胺树脂R801的固化反应特性、成型工艺及其制备的复合材料性能进行了研究,DSC曲线表明该树脂体系的固化温度为170～220℃;黏度随温度变化曲线表明在70～120℃,树脂黏度增长缓慢,具有不少于7 h的适用期;在90℃左右时,其初始黏度<100 mPa.s,工艺操作窗口时间≥10 h;该树脂制备的MT300碳纤维复合材料在300℃时的压缩、弯曲、层剪性能保持率均≥63%。Curing behavior and processing of a novel BMI resin （ R801 ） for RTM were investigated. The mechanical properties. Carbon fiber reinforced BMI composites were also studied. DSC results indicated that the curing temperature of this resin ranged from 170℃ to 220℃. There is a low viscosity platform longer than 7 hours due to the soft rise of the resin＇ s viscosity from 70 to 120℃the viscosity-to-temperature curves. Sufficient processing time longer than 10 hours is possible with the initial viscosity below 100 mPa＇s at the temperature about 90~C. According to the testing mechanical properties, excellent heat-resistant property could also be obtained for the composites using it as the matrix,and mechanical properties retention is above 63% when tested at 300℃.

关 键 词：双马来酰亚胺树脂 RTM工艺 复合材料 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]