油污剥离型水基金属清洗剂的研究与开发

Research and development of new water based metal strip-cleaning agent

为了开发一种低泡、防锈、环保的油污剥离型水基金属清洗剂，研究了异构醇醚非离子与吉米奇阳离子2种表面活性剂的复配体系对金属零件的去污性能和泡沫行为，同时，研究了硼酸酯Hostacor692、羧酸胺及TTA防锈剂对钢材、铝材及铜材的缓蚀作用。该清洗剂最佳配方：水的质量分数为66．O％～81．7％，无水偏硅酸钠的质量分数为0．8％～2．0％，Hostacor692的质量分数为2％～4％，羧酸胺的质量分数为2％～5％，TFA的质量分数为0．5％～1．0％，PEG6000的质量分数为1％～3％，Dissolvine H-40的质量分数为3％～5％，DPNS的质量分数为5％～8％，C12022811的质量分数为4％～6％。用质量分数为5％的该水基金属清洗剂清洗5min，对机械加工油污的洗净率可达99％以上，对钢材、铝材及铜材均有很好的防锈性能，符合JB／T4323．1—1999标准。

To develop a new type of water based metal strip-cleaning agent with the feature of low foam, antirust and environment-friendly, the decontamination and foam performance of a compound system consisting of isomeric fatty alcohol polyoxyethylene ether non-ion-surfactant and cationic Gemini-surfactant are studied. At the same time, the corrosion inhibition properties of Hostacor 692, carboxylic acid amine antirust agent and TrA are studied to protect steels,aluminum and copper products. The metal cleaning agent is composed of 0. 8% - 2% of anhydrous sodium metasilicate,2% -5% of carboxylic acid amine antirust agent,0. 5% - 1% of TTA, 1% -3% of PEG6000,3% -5% of Dissolvine H-40, 6. 5% - 8% of DPNS, 4% - 6% of C12022811 and 66. 0% - 81.7% of water. At normal temperature ,the cleaning rate for oil stains is more than 99% when the concentration of this metal strip-cleaning agent is 5% and the cleaning time is 5 minutes. Good corrosion inhibition of aluminum, steel and copper can also be achieved, which can meet the standard JB/T 4323. 1--1999.