以四氢邻苯二甲酸二缩水甘油酯[711EP(环氧树脂)]为基体、二乙二醇缩水甘油醚(JX-023)为柔性改性剂和二乙烯三胺(DETA)为固化剂,制备可室温(25℃)固化的高性能EP密封剂,并采用单因素试验法优选出制备EP密封剂的最优配方。研究结果表明:当m(711EP)∶m(JX-023)∶m(DETA)=1∶1∶3时,EP密封剂的室温综合性能相对最好;其低温(-196℃)剪切强度(16.5 MPa)和低温剥离强度(31.2 kN/m)接近于室温性能,同时其耐高低温(-196～100℃)循环性能优异,初始黏度低于0.1 Pa.s;该EP密封剂可用于超低温领域及微小部件的粘接与密封。 Diethylene glycol diglycidyl ether (JX-023) is a flexible modifier and diethylenetriamine (DETA) is a curing agent based on diglycidyl tetrahydrophthalate [711EP (epoxy resin)] , Prepared at room temperature (25 ℃) cured high-performance EP sealant, and the use of single factor test method to prepare the best formula for preparing EP sealant. The results show that EP sealant has the best room-temperature comprehensive performance at m (711EP): m (JX-023): m (DETA) = 1: 1: 3. The low temperature (-196 ℃) shear strength (16.5 MPa) and low temperature peel strength (31.2 kN / m) close to the room temperature performance, while its high and low temperature (-196 ~ 100 ℃) cycle performance, the initial viscosity of less than 0.1 Pa.s; EP sealant can be used Cryogenic field and the tiny parts of the bonding and sealing.