响应曲面法优化高性能橡胶涂料配方

Optimization of the Formula on High Performance Rubber Coating by Response Surface Methodology

以聚天门冬氨酸酯树脂和异氰酸酯固化剂为主体成膜物质,研制了一种高性能双组分橡胶涂料,分析了树脂1/树脂2的比例、固化剂1/固化剂2的比例和颜基比对涂膜断裂伸长率和磨耗量的影响。利用响应曲面法,以涂膜断裂伸长率和磨耗量为响应目标优化了涂料配方的参数,得到最优涂料配方参数为:树脂1/树脂2=0.43,固化剂1/固化剂2=1.05和颜基比=1.21,此时涂膜断裂伸长率和磨耗量分别为243.4%和5.56 mg。与模型理论值相比,涂膜断裂伸长率的相对误差为1.59%,涂膜耐磨性能的磨耗量的相对误差为1.28%。

A two-component high performance rubber coating was prepared with polyaspartic ester and isocyanate curing agent as the main binder. The influence such as the ratio of resin1/resin2, hardener1/ hardener2 and pigment/binder were discussed. With the elongation at break and the abrasion loss of the paint film as responses, the parameters of the coating formula were optimized using the response surface methodology. The appropriate parameters of the coating formula was： resin1/resin2 =0.43, hardrner1/ hardener2=1.05 and pigment binder ratio=1.21. Under the optimal conditions,the elongation at break and the abrasion loss of the paint fihn were 243.4% and 5.56 mg, respectively. The relatively small errors between the predieted and the actual values was only 1.59% and 1.28%, respectively for the elongation at break and the abrasion loss of the paint film.