水性环氧树脂涂膜固化的FTIR法  

FTIR Study of the Curing Process of a Waterborne Epoxy Resin Film

作　　者：周继亮[1] 涂伟萍[2] 

机构地区：[1]中南民族大学化学与材料科学学院,武汉430074 [2]华南理工大学化工与能源学院,广州510640

出　　处：《中南民族大学学报（自然科学版）》2009年第1期1-3,共3页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家"863"计划资助项目(2002AA322020);中南民族大学自然科学基金资助项目(YZZ06018)

摘　　要：采用傅立叶变换红外光谱仪研究了水性环氧树脂涂膜的固化过程,得到不同固化温度下交联固化程度随时间的变化规律:水性环氧涂膜在固化前期属于动力学控制阶段,固化速率较高,固化程度随时间增加较快;固化后期属于扩散控制阶段,固化反应程度随时间的延长而增加缓慢.结果表明:此水性环氧树脂涂料体系的固化反应表观活化能为56.082 kJ/mol,室温下具有较快的固化反应速度.The curing process of a two-components waterborne epoxy resin coatings,consisting of a synthesized self-emulsified waterborne epoxy curing agent and liquid epoxy resin was studied by FT-IR.It is shown that the curing rate in the early period is higher and is kinetic controlled,while the curing rate in the anaphase period is lower and is diffusion controlled.The film can cure quite completely at room temperature with an apparent activation energy of 56.08 kJ/mol.

关 键 词：环氧树脂 固化 水性涂料 

分 类 号：TQ630.1[化学工程—精细化工]