摘要
利用傅里叶变换红外光谱仪、差示扫描量热仪、动态机械热分析仪研究粉末涂料用树脂的固化反应过程并计算交联密度;研究了粉末涂料用环氧树脂和聚酯树脂在加温固化中热性能及交联密度的变化。结果表明:三种体系中,β-羟烷基酰胺固化的聚酯树脂反应最完全;环氧树脂能达到和液体热固性涂料树脂相近的交联密度(5.84×10^(-4)mol/cm^3)。
The authors studied curing process of the resins for powder coating by differential scanning calorimetry（DSC）, Fourier transform infrared speetroseopy（FTIR） and dynamic mechanical thermal analysis（DMTA） and furthermore, calculated the crosslink density of the resin. The variations in thermal behaviour and erosslink density of epoxy and polyester for powder coating in heating curing process were examined. The results show that the curing reaction of polyester with β-hydroxyalkyl amide is comparatively complete among the three systems. Epoxy powder can attain a crosslink density of 5.84×10^-4 mol/cm^3, which is similar to that of thermosetting liquid coating.
出处
《合成树脂及塑料》
CAS
北大核心
2011年第3期27-29,共3页
China Synthetic Resin and Plastics
关键词
环氧树脂
粉末涂料
固化反应
交联密度
epoxy resin
powder coating
curing reaction
erosslink density
