核壳粒子改性中温固化环氧基体树脂的研究  

Study on a Moderate Temperature Curing Epoxy Matrix Resin Toughened with Core-Shell Particles

作　　者：魏运召[1] 吴健伟[1,2] 匡弘[1,2] 佟文清 蒋丽萍[1] 李冰[1,2] 付刚[1,2] WEI Yun-zhao;WU Jian-wei;KUANG Hong;TONG Wen-qing;JIANG Li-ping;LI Bing;FU Gang(Institute of Petrochemistry, Heilongjiang A cademy of Sciences, Harbin 150040, China;Institute of Advanced Technology, Heilongjiang A cademy of Sciences, Harbin 150040, China;The 38th Institute of China Electronics Technology Group Corporation, Hefei 230001, China)

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江省科学院高技术研究院,黑龙江哈尔滨150020 [3]中国电子科技集团第三十八研究所,安徽合肥230001

出　　处：《化学与粘合》2018年第3期165-168,195,共5页Chemistry and Adhesion

摘　　要：采用核壳粒子增韧改性制备了一种可中温固化的环氧预浸料基体树脂,研究了增韧改性环氧树脂微观形貌、固化反应活性、耐热性、力学性能和黏温特性。结果表明,核壳粒子在树脂中均匀分散,固化树脂断裂面为银纹增多的韧性断裂。增韧后环氧树脂的力学性能有所提高,加入7%核壳粒子改性树脂的冲击强度达26k J/m2,改性基体树脂玻璃化转变温度为165℃。通过对树脂DSC曲线和黏温曲线的研究考察了基体树脂的使用工艺性,确定中温固化环氧基体树脂的固化工艺为:100℃/1h+130℃/2h。An epoxy resin prepreg matrix resin was prepared by toughening with core-shell particles. The morphology, curing reactivity, heat re- sistance, mechanical properties and viscosity-temperature characteristics of the toughened epoxy resin were studied. The results showed that the core- shell particles were uniformly dispersed in the resin and the fracture surface of the cured resin was a ductile fracture with increased craze. The me- chanical properties of the modified epoxy resin could be improved by toughening with core-shell particles. The impact strength of 7% core-shell par- ticles modified resin could reach 26kJ/m2, and the glass transition temperature of the modified matrix resin was 165℃. The processing technology of the matrix resin was investigated and discussed by the analysis of DSC and viscosity-temperature curves. The curing process of the epoxy resin cured at moderate temnerature was confirmed as follows： 100℃/lh ＋ 130℃/2h.

关 键 词：中温固化 基体树脂 核壳粒子 预浸料 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]