摘要
在一种自主研制的环氧树脂胶液使用过程中发现,胶桶内壁液面处有时会出现一层具有粘性的半固体状物质(称之为结晶)。为了解决胶液结晶问题,根据文献调研情况,开展了相关实验研究。实验研究结果表明:甲基四氢邻苯二甲酸酐(MeTHPA)与2-乙基-4-甲基咪唑(2,4-EMI)发生了胺解反应,生成了一种酰胺和羧酸,因其不溶于树脂体系而导致结晶;调整配制工艺,将2,4-EMI先加入环氧树脂中,并初步搅拌混合,之后再加入MeTHPA和助剂,混合均匀,则可以有效避免结晶现象的出现。
With the use of a kind of epoxy resin glue, a kind of adhesive half- solid matter appeared on the inside surface of resin barrel where was the resin surface, which was called crystallization. In order to solve the crystallization problem of resin matrix, consulting related reference was done in the paper, and related test research was developed at the same time. The results show that, the reason for the resin crystallization was that some unnecessary chemical reaction happened between MeTHPA and 2,4-EMI, which produced a kind of acid amides and carboxylic acid. They could not dissolve in the resin system and thus produce a kind of crystallization chemical substance. The crystallization phenomenon can be avoided effectively when make-up process was modified, namely the 2,4-EMI was added to epoxy resin first, and then preliminary mixture was done, then MeTHPA and assistant agent was added sequentially.
作者
芦武刚
吴肖萍
LU Wu-gang;WU Xiao-ping(Eighth Research Institute of Nuclear Industry, Shanghai 201800, China)
出处
《玻璃钢／复合材料》
CAS
北大核心
2019年第4期71-74,共4页
Fiber Reinforced Plastics/Composites
