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机构地区:[1]西北工业大学理学院应用化学系,陕西西安710129
出 处:《中国胶粘剂》2014年第6期1-4,共4页China Adhesives
基 金:高等学校博士学科点专项科研基金资助课题(博导类)(20136102110049);西北工业大学博士论文创新基金资助项目(CX201429)
摘 要:以BBE(双酚A二烯丙基醚)作为BDM(4,4'-二氨基二苯甲烷双马来酰亚胺)树脂的改性剂,采用旋转黏度计和非等温DSC(差示扫描量热)法分别研究了BBE/BDM树脂体系在不同温度时的黏度和固化反应动力学过程。研究结果表明:该树脂体系在90—215℃范围内具有较低的黏度(低于1000mPa·s),完全满足RTM(树脂传递模塑)的工艺要求;该树脂体系的凝胶温度为210.7℃、固化温度为254.7℃和后处理温度为287.7℃,其固化体系的表观活化能为209.79kJ/mol、频率因子为3.23×1018s-1和反应级数为0.955(近似1级反应)。With BBE (bisphenol A diallyl ether) as modifier of BDM[4, 4'-diamino diphenyl methane- BMI(bismaleimide)] resin, the viscosity and curing reaction kinetics process at different temperatures of BBE/BDM resin system were respectively investigated by rotational viscometer and non-isothermal DSC (differential scanning calorimetry) method. The research results showed that the resin system had lower viscosity (less than 1 000 mPa's) within the range of 90-215 ℃ , and could fully meet the technological requirements of RTM (resin transfer molding). The gelation temperature, curing temperature and post-processing temperature of the resin system were 210.7,254.7,287.7 ℃ respectively, its apparent activation energy, frequency factor and reaction order of the curing system were 209.79 kJ/mol, 3.23×1018s-1 and 0.955 (approximate level 1-reaction) respectively.
分 类 号:TQ323.9[化学工程—合成树脂塑料工业]
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