多官能度粉末涂料的合成及固化研究

Study on synthesis and curing properties of multifunctional powder coatings

以四甲基氯化铵为催化剂,双酚A型环氧树脂与环氧氯丙烷合成了多官能度的粉末状环氧树脂,然后以四丁基溴化铵为催化剂,将多官能度环氧树脂与丙烯酸反应生成多官能度环氧丙烯酸酯。讨论了催化剂对合成多官能度环氧丙烯酸酯的影响,并考察了多官能度环氧丙烯酸酯固化后的物理机械性能。采用IR、TGA、NMR和冲击试验等手段,对其结构和性能进行了研究。结果表明:环氧氯丙烷成功接枝到环氧树脂中,丙烯酸成功接枝到多官能度环氧树脂中,多官能度环氧丙烯酸酯具有更优良的物理机械性能和耐溶剂性,可以满足工业生产的要求。

4-methyl ammonium chloride and NaOH as catalyst,Bisphenol A epoxy resin and epichlorohydrin synthesized a multifunctional epoxy resin kind of powder,And then tetrabutyl ammonium bromide as catalyst,multifunctional epoxy resin with acrylic acid synthesized multifunctional epoxy acrylate.Discussed the effect of catalyst on the synthesis of multifunctional epoxy acrylate,And examined the physical and mechanical properties of multifunctional epoxy acrylate after curing.Their structures and properties were characterized by IR,TGA,NMR and impact tester,etc.The NMR results showed that the epichlorohydrin grafted successfully into the epoxy resin,The IR results showed that acrylic acid grafted successfully into the multifunctional epoxy resin.Multifunctional epoxy acrylate which had better physical and mechanical properties and solvent resistance,can met the requirements of industrial production.