Pei-yao CHEN, Cheng TIAN, Wen-zhu CUI, Fa CHENG. Preparation of Waterborne Epoxy Curing Agent and the Property of its Film[J]. Polymer Bulletin, 2012,25(12):62-67.
Pei-yao CHEN, Cheng TIAN, Wen-zhu CUI, Fa CHENG. Preparation of Waterborne Epoxy Curing Agent and the Property of its Film[J]. Polymer Bulletin, 2012,25(12):62-67.DOI:
polyamine adduct (DETA-PPGDGE-DETA) was synthesized through the reaction between diethylenetriamine (DETA) and polypropylene glycol diglycidyl ether (PPGDGE). Then it was synthesized of waterborne epoxy curing agent by capping of DETA-PPGDGE-DETA with a certain amount of epoxy resin E-20. This waterborne epoxy curing agent was characterized by the infrared spectrum (IR) and time of flight mass spectrograph (TOF-MS). The effect of different reactive conditions on the structure and properties of epoxy curing agent was investigated in this paper. It is indicated that the most excellent coating mixed with curing agent and epoxy emulsion was obtained when the molar ratio of DETA and epoxy group of PPGDGE was 10:1
a small amount of DETA was removed completely by higher boiling diethylene glycol butyl ether (DGBE) and 20% primary amine was capped with E-20.