低毒环保乳液型脱漆剂的研制及其应用  

Preparation and Application of Low Toxic Environmentally Friendly Emulsion Paint Remover

作　　者：冯学彪 张爱黎[1] 姜影 FENG Xue-biao;ZHANG Ai-li;JIANG Ying(School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110168,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110168

出　　处：《材料保护》2022年第11期102-106,共5页Materials Protection

摘　　要：为解决汽车轮毂残次品脱漆剂的环保问题,研制了一种无卤、无苯、无苯酚类物质的低毒乳液型脱漆剂。配合环保脱漆设备,针对合金钢表面(105±5)μm厚热固性环氧涂层,以及涂装了环氧底漆与丙烯酸树脂面漆的汽车轮毂样件进行了脱漆性能研究。经正交试验获得的脱漆剂优化配方为:主溶剂乙酸乙酯质量分数21.96%,助溶剂苯甲醇与甲醇质量分数比为2∶1,促进剂甲酸与乙酸质量分数比为6.62∶1.00,乳化剂十六烷基三甲基溴化铵与表面活性剂OP-10比为1∶1,去离子水质量分数11.82%。使用优化配方配制的脱漆剂,合金钢表面环氧涂层30 min内脱漆效率可以达到100%,汽车轮毂样件复合涂层15 min内脱漆效率可以达到100%,脱漆剂能重复使用4次,并且汽车轮毂铝基材不失光。In order to solve the environmental protection problem of defective paint remover for automobile wheel hub, a halogen-free, benzene-free and phenol-free low toxic emulsion paint remover was developed. The paint removal performance of such remover was studied when it was used in conjunction with environmentally friendly paint stripping equipment to treat alloy steel surfaces coated with(105±5) μm thick thermoset epoxy coating as well as automotive wheel hub samples coated with epoxy primer and acrylic resin topcoat. The optimized formula of such paint remover obtained through orthogonal test was as follows: the mass fraction of ethyl acetate(the primary solvent) was 21.96%, the mass fraction ratio of benzyl alcohol to methanol(the cosolvents) was 2∶1, the mass fraction ratio of formic acid to acetic acid(the accelerators) was 6.62∶1.00, the ratio of emulsifier cetyl trimethyl ammonium bromide(CTAB) to surfactant OP-10 was 1∶1, and the mass fraction of deionized water was 11.82%. In case of the optimized formula, the paint removal efficiency of such remover could reach 100% within 30 min when treating thermosettin epoxy coating on alloy steel surface, and could reach 100% within 15 min when treating composite coating on auto wheel hub sample. The paint remover could be used repeatedly for 4 times, and meanwhile the aluminum substrate of the treated auto wheel hub would not lose luster.

关 键 词：脱漆剂 环保 乳液型 汽车轮毂漆 

分 类 号：TQ637.6[化学工程—精细化工]