微乳液应用于金属表面油污的清洗

Microemulsion is used to clean oil stains on metal surfaces

摘要:

以十二烷基苯磺酸钠（SDBS）为表面活性剂配制微乳液清洗剂，对金属表面油污清洗进行模拟实验，探究了SDBS、Na2CO3、煤油、正丁醇添加量对微乳液清洗效率的影响，并从温度稳定区间范围、清洗效率随温度及时间变化情况对不同配方进行考察，最终筛选出一种处理金属表面油污的最优化微乳液配方：SDBS为10%、Na2CO3为1.4%、煤油为12.8%、正丁醇为6.4%（均为质量分率）。考察缓蚀剂的种类及用量对碳钢、黄铜、铝三种金属的防护性能，最终以0.06%硅酸钠作为微乳液缓蚀剂。清洗剂具有良好的清洗及防锈效果，有一定的重复利用性，是一种低泡碱性清洗剂。

Abstract:

Sodium dodecylbenzene sulfonate (SDBS) was used as a surfactant to prepare a microemulsion cleaning agent, and a simulation experiment was performed to clean the oil on the metal surface. The effect of the addition of SDBS, Na2CO3, kerosene, and n-butanol on the cleaning efficiency of the microemulsion was investigated. In addition, different formulations were investigated from the temperature stability range, the cleaning efficiency with temperature and time changes, and finally an optimized microemulsion formulation for treating metal surface oil stains was screened: SDBS 10%, Na2CO3 1.4%, kerosene It is 12.8% and n-butanol is 6.4% (both are mass fractions). The types and amounts of corrosion inhibitors were investigated for their protective performance on carbon steel, brass, and aluminum. Finally, 0.06% sodium silicate was used as the microemulsion corrosion inhibitor. The cleaning agent has good cleaning and anti-rust effects, and has a certain degree of reusability. It is a low-foam alkaline cleaning agent.