Epoxy txheej thiab polyester txheej muaj qhov sib txawv tseem ceeb hauv kev sib xyaw, siv thiab ua haujlwm. cov
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Epoxy txheej yog tsim los ntawm epoxy resin thiab amine curing tus neeg sawv cev. Epoxy resin yog tshuaj ruaj khov thiab tiv taus alkalis thiab roj, tab sis tsis muaj ester bonds thiab yog li tsis hnov mob nrog alkalis
Polyester txheej yog tsim los ntawm polymerization siv polyols thiab acid anhydrides ua cov ntaub ntawv tseem ceeb. Polyester coatings tuaj yeem tsim acyclic thiab / lossis cyclic hydrogen bonds ntawm polymer molecules, thiab muaj cov neeg kho tshuab siab hnav thiab tawv.