以氯化聚烯烃或氯化聚烯烃改性丙烯酸树脂为原料制备聚丙烯塑料用底漆,分析树脂有效含量及烘烤温度对底漆附着力及面漆配套性的影响。分别以氯化聚烯烃树脂、热塑性脂肪族丙烯酸树脂、热塑性聚氨酯弹性体和脂肪族聚氨酯树脂为原料制备聚丙烯塑料用面漆,测试面漆的耐磨性、人工老化、耐水性、耐湿热、抗划伤性和耐热性等。研究表明,脂肪族聚氨酯面漆性能最优。又将氯化聚烯烃改性丙烯酸树脂引入聚氨酯树脂体系中,制备了底面合一的塑料用涂料,具有优良的性能。

The primer for polypropylene plastics were prepared by using chlorinated polyolefin(chlorinated polyolefin modified acrylic resin)as raw material.The effects of effective resin content and baking temperature on the adhesion of the primer and the compatibility of the topcoat were investigated.In addition,the polypropylene plastic finish were prepared by using chlorinated polyolefin resin,thermoplastic aliphatic acrylic resin,thermoplastic polyurethane elastomer and aliphatic polyurethane resin as raw materials.The wear resistance,artificial aging,water resistance,moisture heat resistance,scratch resistance,and heat resistance of the topcoat were tested.The results showed that aliphatic polyurethane topcoats had the best performance.Chlorinated polyolefin modified acrylic resin was introduced into the polyurethane resin system to prepare a plastic coating with an integrated bottom and surface,which had excellent performance.