水性单组分浸涂漆在汽车发动机缸体上的应用研究  

Study on the Application of Waterborne One-component Dip coatings on Automobile Engine Cylinder Block

作　　者：王荣芳 姚煌 许奕祥 谢唯 吴炳贤 王从国 方博 WANG Rongfang;YAO Huang;XU Yixiang;XIE Wei;WU Bingxian;WANG Congguo;FANG Bo(Kinte Materials Science and Technology Co.Ltd.,Dongguan,Guangdong 523988,China;China National Electric Apparatus Research Institute Co.Ltd.,Guangzhou 510300,China)

机构地区：[1]擎天材料科技有限公司,广东东莞523988 [2]中国电器科学研究院股份有限公司,广州510300

出　　处：《涂料工业》2024年第11期63-69,75,共8页Paint & Coatings Industry

摘　　要：针对汽车发动机缸体上涂装的防护涂层经超声波-化学清洗工艺容易被破坏和剥离的难题,研制了一种高性能水性单组分浸涂漆并研究其应用效果;探讨了浸涂漆的成膜物、润湿剂、催干剂和附着力促进剂对漆膜的附着力、耐水性、耐盐雾性和耐超声波-化学清洗性能的影响。结果表明:选择水性丙烯酸改性环氧酯树脂TH-8180和改性水性环氧分散体H-502-42W按照质量比6∶4作为成膜物,选择润湿剂BW-104E和HOS 2413按照质量比2∶3进行复配,同时,添加5%无钴环保催干剂OXY-Coat1101和1.5%附着力促进剂MOAP 1880,制备的水性单组分浸涂漆对发动机缸体的润湿性良好,漆膜的干燥速度快,耐水性、耐盐雾性和耐超声波-化学清洗性优异。To solve the problem that the protective coating on the automobile engine cylinder block was easy to be destroyed and peeled off by the ultrasonic-chemical cleaning process,a high-performance waterborne one-component dip-coating was developed and its application effect was studied in this paper.The effects of film former,wetting agent,drier and adhesion promoter on the adhesion,water resistance,salt spray resistance and ultrasonic-chemical cleaning resistance of the paint film were discussed.The results showed that the waterborne acrylic modified epoxy ester resin TH-8180 and the modified waterborne epoxy dispersion H-502-42W were selected as the film-forming material according to the mass ratio of 6∶4,and the wetting agent BW-104E and HOS 2413 were selected according to the mass ratio of 2∶3.At the same time,5%cobalt-free environmental protection drier OXY-Coat1101 and 1.5%adhesion promoter MOAP 1880 were added.The prepared waterborne one-component dip-coatings had good wettability to the engine cylinder,fast drying speed,excellent water resistance,salt spray resistance and the ultrasonic-chemical cleaning resistance.

关 键 词：水性单组分浸涂漆 超声波-化学清洗工艺 汽车发动机 浸涂工艺 

分 类 号：TQ630.7[化学工程—精细化工]