丙烯酸改性环氧树脂的制备及其光热双重固化体系的性能
Preparation of acrylic acidmodified epoxy resin and properties of its photothermal dual curing system
贾志伟 1汤文进 2刘华 3刘正彪 1陈建辉 3刘坐镇4
作者信息
- 1. 华东理工大学材料科学与工程学院,上海 200237
- 2. 浙江天振科技股份有限公司浙江安吉 313300
- 3. 华东理工大学华昌聚合物有限公司,上海 200237;上海防腐蚀新材料工程技术研究中心,上海 200237
- 4. 华东理工大学材料科学与工程学院,上海 200237;华东理工大学华昌聚合物有限公司,上海 200237;上海防腐蚀新材料工程技术研究中心,上海 200237
- 折叠
摘要
以1,3-双(N,N-二缩水甘油胺甲基)环己烷(AG602)和α-甲基丙烯酸为原料,采用部分开环改性的方法制备了 50％酯化率的丙烯酸改性环氧树脂AGMA,通过酸值、环氧值的测定以及红外光谱测试证明了 AGMA树脂制备成功.设计了光固化、热固化和光热固化三种固化体系制备了 AGMA树脂浇注体,研究了三种固化体系的力学性能、热机械性能、热稳定性以及断裂面微观形貌.结果表明光固化体系未能达到一定的固化度,性能较差.热固化体系各方面性能要远高于光固化体系,但固化时间较长.光热固化体系固化时间大大缩短,固化工艺简便,浇注体的综合性能优于热固化体系.
Abstract
The acrylic acid modified epoxy resin AGMA with 50％esterification rate was prepared by partial ring-opening modification using 1,3-bis(N,N-diglycidylaminomethyl)cyclohcxane(AG602)and a-methacrylic acid as raw materials through partial ring opening modification.The successful preparation of AGMA resin was confirmed by the determination of acid value,epoxy value and infrared spectroscopy.Three curing systems of UV curing,thermal curing and photothermal curing were designed to prepare AGMA resin castings.The mechanical properties,thermal mechanical properties,thermal stability and fracture surface morphology of the three curing systems were studied.The results indicated that the UV curing system failed to achieve a certain degree of curing and its performance was poor.The performance of the thermal curing system was much higher than that of the UV curing system in all aspects,but the curing time was longer.The curing time of the photothermal curing system was greatly shortened and the curing process was simple.The comprehensive performance of the casting body was better than that of the thermal curing system.
关键词
丙烯酸/改性/环氧树脂/光热双重固化/力学性能/耐热性Key words
acrylic acid/modification/epoxy resin/photothermal dual curing/mechanical property/heat resistance引用本文复制引用
基金项目
国家重点研发计划项目(2022YFB3709201)
出版年
2024
NETL
NSTL
万方数据