用于镀锡钢板的水性脱漆剂的研制

Preparation of water-based paint stripper for tinplate

针对用于食品罐的镀锡钢板表面的白涂、金属油墨和罩光清漆样板研制一种水性脱漆剂。当苯甲醇的质量分数为35%、丙二醇碳酸酯质量分数为6%、甲酸质量分数为10%、十六烷基三甲基溴化铵(CTMAB)质量分数为2%、蒸馏水质量分数为47%时,所得脱漆剂脱漆效率最高。该脱漆剂含有一定水组分,挥发性小,不易燃烧。扫描电镜检测表明该脱漆剂对镀锡钢板的腐蚀性较小。

A water-based paint stripper used to remove the tinplate surface underpainting, metal printing ink and finish varnish films, is prepared. The results show that the paint stripper is most efficient when the composition is as follows（mass fraction） ：35% of benzyl alcohol,6% of propanediol carbonate,10% of formic acid,2% of cetyl trimethyl ammonium bromide（CTMAB） and 47% of distilled water. The paint stripper contains a certain amount of water, so its volatile is small and not easy to burn. Scanning electron microscopy（SEM） test shows that the paint stripper has smaller corrosivitv on tinplates.