无磷水基金属清洗剂的研制

Preparation of Phosphorus-Free Water-Based Cleaning Agent for Metals

研究了阴/阳离子表面活性剂的复配及该体系在水基金属清洗剂中的应用,比较了马来酸酐-丙烯酸共聚物的钠盐、三聚磷酸钠与4A沸石的助洗性能。并通过试验确定了金属清洗剂的配方:AESA(C12脂肪醇聚氧乙烯醚硫酸铵):BJH-1(脂肪胺类,自制):OP-10(辛基酚聚氧乙烯醚):M550(卤化二甲基二丙基铵丙酰铵共聚物)=6:4:4:1(摩尔比),并将其按质量比95:5加入Na-CP4(马来酸酐及丙烯酸共聚物的钠盐)及硅酸钠做助洗剂,对其5%稀释液的洗涤效果和防锈性能进行了评价。结果表明,该清洗剂具有较强的去污能力和良好的防锈性能,不含磷化物,对环境友好。

The compound systems of anionic-cationic surfactants were used to prepare water-based cleaning agents for metals.Thus the auxiliary cleaning capacity of the sodium salt of maleic anhydride-acrylic acid copolymer and sodium tripolyphosphate-4A zeolite was compared.The anionic-cationic surfactants were then used as the auxiliary cleaning agents and introduced into the sodium salt of maleic anhydride-acrylic acid copolymer(coded as Na-CP4) and sodium silicate at a mass ratio of 95:5 to prepare the titled complex cleaning agents for metals.The optimized formulation of the complex metal cleaning agents was experimentally established,while the cleaning performance and antirust behavior of the dilute solution(5%) of the complex metal cleaning agent were evaluated as well.As the results,the optimized formulation for the target P-free water-based metal cleaning agent was suggested to be NESA(C12 fatty alcohol polyoxyethyl ether-ammonium sulfate):BJH1(fatty amine,prepared at our lab):OP-10(octyl-phenol polyoxyethyl ether):M550(copolymer of halogenated dimethyl dipropyl amine acrylic acylamine) = 6:4:4:1(molar ratio).The final cleaning agent had good decontamination capacity and antirust ability as well,and was environmentally acceptable owing to the absence of phosphorus.