高性能环保无铬卷钢涂料的制备与性能研究  

Study and Preparation of High Performance Environmental Friendly Chromium Free Steel Coil Coating

作　　者：李小林 苏狄 黄燕 俞剑峰 Li Xiaolin;Su Di;Huang Yan;Yu Jianfeng(Shanghai Huayi coating Co.,Ltd.,Shanghai 201500,China;Shanghai Huayi Fine Chemical Co.,Ltd.,Shanghai 201500,China)

机构地区：[1]上海华谊涂料有限公司,上海201500 [2]上海华谊精细化工有限公司,上海201500

出　　处：《涂料工业》2022年第10期19-23,37,共6页Paint & Coatings Industry

摘　　要：为了制备高性能无铬卷钢涂料,探讨了无铬防锈颜料、无铬底漆、卷钢基板种类及面漆类型对无铬卷钢常规性能以及耐盐雾性能的影响。结果表明:采用硅钙离子交换型防锈颜料制备的涂料耐盐雾性能最好;无铬环氧底漆的铅笔硬度、耐划伤性、切边盐雾和平板盐雾性能表现最好,但是切边盐雾要劣于聚酯和聚氨酯底漆;无铬卷钢底漆配合不同的面漆都表现出较为优异的性能;基板的类型对无铬卷钢涂料的常规性能影响不大,其中低铝锌铝镁基板的耐盐雾性能最好;无铬卷钢涂料与有铬卷钢涂料性能相当,但有铬卷钢涂料的耐盐雾性能稍优于无铬卷材涂料,尤其是切边盐雾和划线盐雾。综上,制备的无铬卷钢涂料可以替代有铬卷钢涂料。In order to prepare high−performance chrome−free coil coatings,the effects of the types of chrome−free anti−rust pigments,different chrome−free primers,coil substrate types and different topcoat types on the conventional properties and salt spray properties of chrome−free coils were discussed.The research results showed that:the coatings prepared with silicon calcium ion exchange antirust pigment had the best salt spray resistance,chrome free epoxy primer performed best in pencil hardness,scratch resistance,edge cutting salt spray and flat salt spray,but was inferior to polyester and polyurethane primer in edge cutting salt spray,chrome free coil steel primer with different topcoats shows relatively excellent performance.The type of substrate had little effect on the conventional properties of chromium free coil coatings.In terms of salt spray performance,low aluminum zinc aluminum magnesium substrate had the best salt spray resistance.The performance of chromium free coil coatings was equivalent to that of chromium containing coil coatings,but the salt spray resistance of chromium containing coil coatings was slightly better than that of chromium free coil coatings,especially the edge cutting salt spray and scribe salt spray.In conclusion,the prepared chromium free steel coil coatings could replace the chromium steel coil coatings.

关 键 词：无铬 卷钢涂料 耐盐雾性能 耐划伤 T弯 

分 类 号：TQ635.9[化学工程—精细化工]