Abstract: A new weakly alkaline road grease cleaning agent with high decontamination efficiency was developed by choosing appropriate surfactants，auxiliary solvent and alkaline auxiliaries via analysis of the composition，properties and forming process of the road surface grease. Based on orthogonal experiment，the best ingredients and their percentage contents of AES 6%，LAS 1%，APG 4%，AEO-9 1%，mandarin oil 1.5%，triethanolamine 4% and trisodium citrate 3% were determined b further experiments of performance optimization，and its decontamination rate could reach 99.8% at dry temperature of 150℃. Comparison study of the cleaning performance between commercial multi- purpose cleaning agent “Mr Muscle” for kitchen and the as-prepared road grease cleaning agent showed that the latter cleaning agent had higher comprehensive decontamination capacity，and also broad application prospect in the field of thick road grease cleaning.

Key words: surfactant, thick road grease, cleaning agent, mandarin oil, orthogonal experiment

摘要： 通过对美食街路面油污组成、性质及形成过程进行分析，选择合适的表面活性剂、辅助溶剂和碱性助剂等原料成功地复配成弱碱性高效路面油污清洗剂。在正交实验的基础上，对所选配方进行性能优化实验，确定最佳实验配方组成分别为脂肪醇聚氧乙烯醚硫酸钠6%、直链烷基苯磺酸钠1%、烷基糖苷4%、脂肪醇聚氧乙烯醚1%、桔子油 1.5%、三乙醇胺 4%和柠檬酸三钠 3%，在150℃的干燥温度下其去污力可达99.8%。与市售厨房多用清洗剂“威猛先生”清洗性能的对比研究表明，该清洗剂的综合去污能力更强，在路面稠油垢清洗领域显示出广阔的应用前景。

关键词: 表面活性剂, 路面稠油垢, 清洗剂, 桔子油, 正交实验