铁路货车用高弹性防腐涂料的研制  

Development of High Elastic Anticorrosive Coatings for Freight Train

作　　者：胡江浦 赵亚玲 赵娜 次立杰[1] 景朝 Hu Jiangpu;Zhao Yaling;Zhao Na;Ci Lijie;Jing Zhao(Shijiazhuang University,Shijiazhuang 050035,China;CRRC Shijiazhuang Co.,Ltd.,Shijiazhuang 051430,China)

机构地区：[1]石家庄学院,石家庄050035 [2]中车石家庄车辆有限公司,石家庄051430

出　　处：《涂料工业》2023年第11期23-28,共6页Paint & Coatings Industry

基　　金：河北省高等学校科学技术研究项目(ZC 2021249,QN202212);石家庄学院博士科研启动基金项目(21BS005)。

摘　　要：以聚氯乙烯(PVC)糊树脂和醋酸乙烯酯改性的聚氯乙烯糊树脂(氯醋共聚糊树脂)为主体树脂,制备了一种适用于铁路货车恶劣装卸工况的高弹性防腐涂料。通过研究3种聚合工艺生产的PVC糊树脂对防腐涂料黏度、拉伸性能、耐冲击性和杯突实验结果的影响,选择了种子乳液聚合工艺生产的PVC糊树脂作为主体树脂。通过向涂料体系中加入适量的氯醋共聚糊树脂,可以在不降低涂料拉伸强度的条件下,提高涂料耐冲击性。此外,通过加入一定量特殊的聚酰胺类PVC专用附着力促进剂,提高了涂料对铁路货车车体的附着力。By using polyvinyl chloride(PVC)paste resin coupled vinyl acetate modified polyvinyl chloride paste resin(vinyl chloride-vinyl acetate copolymer),high elastic anticorrosive coatings was prepared for freight train,which always works in a harsh environment.By investing the effects of three PVC paste resins produced by different polymerization techniques on the viscosity,tensile property,impact resistance and cup drawing test results of the anticorrosive coatings,PVC paste resins produced by the seeded emulsion polymerization process were selected as the main resins.By adding an appropriate amount of chloroacetate copolymerized paste resin to the coating system,the impact resistance of the coating can be improved without reducing the tensile strength of the coating.Furthermore,by using a special polyamide adhesion promoter,the adhesive strength of this coating to the freight train body had been improved.

关 键 词：PVC糊树脂 防腐涂料 铁路货车 耐冲击性 氯醋共聚糊树脂 

分 类 号：TQ635.2[化学工程—精细化工]