手喷漆清洗剂的研制

为了有效地清除城市小广告以及街头涂鸦,研制了一种针对热塑性丙烯酸树脂类手喷漆的乳液型脱漆剂。采用单因素实验法研究了有机溶剂的种类、用量,主、助溶剂的质量比,表面活性剂的种类、用量,甲酸的用量,对脱漆效率的影响。实验结果表明:脱漆剂的最佳组成为以乙酸丁酯为主溶剂,苯甲醇为助溶剂,十二烷基苯磺酸钠和OP-10复配为表面活性剂,甲酸为促进剂,石蜡为挥发抑制剂。当乙酸丁酯为27 g,苯甲醇为9 g,十二烷基苯磺酸钠为1 g,OP-10为1 g,甲酸为2 g,石蜡为6 g时脱漆效率最高。在最佳实验配方及其用量的条件下,1 mL脱漆剂所能擦除漆膜的面积为70.65 cm2。并且脱漆剂中水含量超过50%,其余组成部分均为低毒、挥发性不大的物质,易于生物降解,市售常见,成本低廉,符合绿色化学"高效、洁净、经济、环保"的要求。

Preparation of Hand-spray Paint Remover

In order to effectively clear small hand-painting and graffiti in the streets of a city,an emulsion-type paint remover was developed to remove the hand-painting of thermoplastic acrylic resin.The types and contents of organic solvents used,the mass ratio of cosolvent,surfactant type,dosage were studied,as well as the amount of formic acid and their effect on the paint stripping efficiency with the single-factor experiment.The experimental results showed that the best paint remover was prepared with butyl ac...