Methyl etherified amino resin is widely used in steel plate and automotive coatings. Since it is hard and brittle, it often needs to be compounded with other film-forming materials to improve the performance. In this study, waterborne acrylic resin was crosslinked with total-methyl etherified amino resin to form a film, and the pyrolysis kinetics of the product under optimal conditions was studied. The kinetic activation energy and pre-exponential factor of thermal degradation were calculated by Kissinger method, Flynn-Wall-Ozawa method and Kissinger-Akahira-Suunose method. In addition, the corresponding thermal degradation mechanism function was deduced by Coats-Redfern method. Comparing the film-forming properties and pyrolysis properties of waterborne acrylic resin before and after cross-linking, it was found that the flexibility, adhesion and thermal stability of the products were improved. This study provides quantitative data for the application of total methyl etherified amino resin in resin matrix.

甲基醚化氨基树脂广泛用于钢板和汽车涂料。由于它又硬又脆，往往需要与其他成膜材料复合以提高性能。本研究将水性丙烯酸树脂与全甲醚化氨基树脂交联成膜，研究了产物在最佳条件下的热解动力学。采用Kissinger法、Flynn-Wall-Ozawa法和Kissinger-Akahira-Suunose法计算了热降解的动能活化能和指前因子。此外，通过Coats-Redfern方法推导出了相应的热降解机理函数。比较水性丙烯酸树脂交联前后的成膜性能和热解性能，发现柔韧性、提高了产品的附着力和热稳定性。本研究为总甲基醚化氨基树脂在树脂基体中的应用提供了定量数据。