电泳涂料用硫鎓盐、季铵盐混合型分散树脂的合成与性能研究  

Synthesis and Properties of Sulfonium Salt and Quaternary Ammonium Salt Mixed Dispersant Resin for Electrophoretic Coatings

作　　者：胡东波 陈卫东 李涛 庄振宇 陈凯 孙家娣 陈兴兰 Hu Dongbo;Chen Weidong;Li Tao;Zhuang Zhenyu;Chen Kai;Sun Jiadi;Chen Xinglan(CNOOC Changzhou Paint and Coatings Industry Research Institute Co.,Ltd.,Changzhou,Jiangsu 213016,China)

机构地区：[1]中海油常州涂料化工研究院有限公司,江苏常州213016

出　　处：《涂料工业》2021年第1期1-5,共5页Paint & Coatings Industry

摘　　要：以硫醚化合物和叔胺类化合物共同与环氧树脂反应制备一种新型硫鎓盐分散树脂,以提高电泳涂层的外观和耐腐蚀能力。通过质子化硫醚和质子化叔胺混合开环环氧树脂,并在树脂中引入柔韧链段,制备一种颜填料分散树脂。对比了分别由混合型分散树脂和季铵盐树脂制备的涂层耐盐雾性能、机械力学性能和贮存稳定性。结果表明:在使用铁系磷化作为前处理时,电泳涂层拥有良好的外观和耐腐蚀性,同时该分散树脂拥有良好的水溶性和抗沉降性能。This paper described a new type of sulfonium salt dispersant resin,which was prepared by reaction of thioether and tertiary amine with epoxy resin to improve the appearance and corrosion resistance of the electrophoretic coatings.The mixed protonated thioether and tertiary amine acted for the ring opening of epoxy resin and introduced a soft segment in the resin to form a dispersant resin for pigment and fillers.The salt spray performance,mechanical properties and storage stability were compared.The results showed that when iron phosphating pretreatment system was used,the electrophoretic coatings film provided good appearance and corrosion resistance.The prepared dispersant resin was characterized by its good water solubility and anti-settling properties as well.

关 键 词：电泳涂料 硫鎓盐 分散树脂 季铵盐 耐腐蚀 外观 

分 类 号：TQ637[化学工程—精细化工]