配制方法对真空成型5428VB双马树脂固化特性的影响  

Influuence of Processing Methods on Cure Behavior of 5428VB Bismaleimide Resin for Vacuum Bag Curable Composite

作　　者：张宝艳[1] 周正刚[1] 鱼强[1] 李斌太[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《航空材料学报》2009年第5期72-76,共5页Journal of Aeronautical Materials

基　　金：国家"863"高技术项目(2007AA03Z545)

摘　　要：研究了浆料混合法配制的真空成型5428VB双马树脂的固化动力学和粘温特性,并与传统热熔法配制的树脂体系进行了比较分析。结果表明:浆料混合法和传统热熔法配制5428VB树脂的反应级数和反应活化能等固化动力学参数基本一致,树脂配制方法的改变没有改变树脂体系的反应历程;浆料混合法配制的5428VB树脂具有良好的粘性,室温储存期可以达到3个月,而传统热熔法配制的5428VB树脂的室温储存期只有1个月,无粘性;传统热熔法和浆料法配制的5428VB树脂浇铸体的基本力学性能和耐热性一致。Slurry mixing process was used here to prepare 5428VB bismaleimide （BMI） resin which is suitable for vacuum bag curable composite matrix. The cure kinetic equation and viscosity-temperature behavior etc. of prepared 5428VB resin were investigated and compared to the resin from traditional hot melt mixing process. Results indicated that the 5428VB BMI resin prepared from slurry mixing process and hot melt mixing process had similar cure kinetic parameters, such as the total reaction grade and reaction activation energy, the change of resin processing methods had no influence on the cure reaction process of 5428VB resin; 5428VB resin prepared from slurry mixing process had excellent stickiness and 3 months storage life while the resin from hot melt process had no stickiness and only 30 days room storage life, and the resin castings from different processing methods had very similar mechanical properties and glass transition temperatures.

关 键 词：真空成型 非热压罐 双马树脂 固化动力学 浆料混合法 

分 类 号：TB332[一般工业技术—材料科学与工程]