基于多官能团环氧树脂的湿法模压专用树脂体系的研究  

One Method for Increasing the Tg of Fast Curing Epoxy Resin System

作　　者：闫志 范广宏 梅宝良 何琪 YAN Zhi;FAN Guang-Hong;MEI Bao-Liang;HE Qi(Beijing National Innovation Institute of Lightweight Co.,Ltd.,Beijing 100083,China;Dezhou Branch of Beijing National Innovation Institute of Lightweight Co.,Ltd.,Dezhou Shandong253011,China)

机构地区：[1]北京机科国创轻量化科学研究院有限公司,北京100083 [2]北京机科国创轻量化科学研究院有限公司德州分公司,山东德州253011

出　　处：《机电产品开发与创新》2020年第5期90-93,共4页Development & Innovation of Machinery & Electrical Products

基　　金：“高档数控机床与基础制造装备”科技重大专项课题“汽车复合材料车身模压成形技术与装备”(2018ZX04026001);广东省肇庆市科技计划项目“基于快速制造的碳纤维复合材料在线湿法模压成套装备及典型制件开发”(2018K004);机械科学研究总院集团有限公司技术发展基金项目“汽车轻量化先进复合材料基体树脂研究及产业化”(211819Q9)。

摘　　要：本文研究四缩水甘油胺类环氧树脂(MF-4101)与E51环氧树脂在不同比例下混合,随后与快速固化的环氧固化剂和DMP-30促进剂固化反应。用凝胶化时间测试仪探究MF-4101在不同含量下的不同温度下的固化时间,结果显示,当含量为10%时,在120℃凝胶化时间最短为36s。差示扫描量热仪(DSC)测试结果显示,当MF-4101含量为50%时其Tg为156.2℃。采用万能材料试验机表征树脂体系浇筑件各力学性能,较单一组分下浇铸件的性能有很大的提高,在MF-4101含量为50%时力学性能达到最佳。In this paper,tetraglycidamine epoxy resin(MF-4101)was mixed with E51 epoxy resin in different proportions,and then cured with fast-curing epoxy curing agent and DMP-30 accelerator.The gelation time tester was used to explore the curing time of MF-4101 at different temperatures with different contents.The results showed that when the content was 10%,obtained the shortest gelation time at 120℃was 36s.Differential scanning calorimeter(DSC)test results showed that when the content of MF-4101 was 50%,its Tg was 156.2℃.Universal material testing machine was used to characterize the mechanical properties of the casting parts of resin system,which was greatly improved compared with that of a single component.The mechanical properties reached the best when the content of MF-4101 was 50%.

关 键 词：四缩水甘油胺环氧树脂 凝胶化时间 高玻璃化转变温度 力学性能 

分 类 号：O62[理学—有机化学]