一种低温解封阴极电泳漆单组份固化剂的合成与表征  

Synthesis of a Low Temperature Unsealing One-component Curing Agent of Cathodic Electrophoretic Coatings and Characterization

作　　者：杨占强[1] 何为[1] 

机构地区：[1]青岛科技大学化工学院,青岛266042

出　　处：《科学技术与工程》2012年第16期4023-4025,4029,共4页Science Technology and Engineering

摘　　要：以乙二醇单丁醚为溶剂,己内酰胺为封闭剂对TDI进行封闭,得到单组份固化剂。通过红外测试、热失重测试对得到的单组份固化剂进行表征,探讨了在不同条件下—NCO的封闭率,进而确定最佳实验条件为n(活泼H)∶n(—NCO)为1.2,封闭反应温度控制在90℃左右为宜,反应时间为4 h。The single-component curing agent was prepared by blocking TDI with ethylene glycol monobutyl as solvent and caprolactam as a sealing agent. Through IR and TGA characterization, the sealing rate of--NCO is in-vestigated under different conditions, and the optimum experimental conditions are determined afterwards, as n （ac-tive H）：n （-NCO） of 1.2, temperature control of 90 ℃ and the reaction time of 4 h.

关 键 词：乙二醇单丁醚 己内酰胺TDI 单组份固化剂 红外 热失重 

分 类 号：TQ151.7[化学工程—电化学工业]