Abstract: An efficient，environmentally safe and low-cost novel water-based cleaning agent was successfully developed for the heavy oil foulant in kitchen ventilator. Based on the orthogonal experiment with 7 factors and 3 levels of L18 (37)，the optimal ingredients and their mass percentage of the cleaning agent are as follows：a certain anionic surfactant F 4%，APG 3.5%，AEO-91%，LAS 0.5%，sodium citrate 1%，triethanolamine 3%. Detergency of the cleaning agent and the commercial multi-purpose cleaning agent for kitchen were comparatively studied with dilution ratio of (0－10)∶1 at the temperatures of 10℃ and 30℃，respectively. It was found that the former has much higher decontamination rate than that of the latter，and its decontamination rate is still more than 90% with dilution ratio of 10∶1. The as-prepared cleaning agent from cheap industrial raw materials is applicable in a wide temperature range，with excellent comprehensive cleaning performance and simple preparation process，and shows a good application prospect.

Key words: surface active agent, heavy oil foulant of lampblack machine, water-based cleaning agent, orthogonal experiment, detergency, surface active agent, heavy oil foulant of lampblack machine, water-based cleaning agent, orthogonal experiment, detergency

摘要： 针对油烟机重油垢的特点，成功研制了高效、环保安全的低成本新型水基清洗剂。7因素、3水平的L18（37）正交实验确定其最佳配方组成为：4%阴离子型表面活性剂F、3.5%烷基糖苷、1.0%脂肪醇聚氧乙烯醚硫酸钠、0.5%十二烷基苯磺酸钠、1%柠檬酸钠和3%三乙醇胺。进一步在10 ℃和30 ℃下对比研究了自制清洗剂和市售某品牌厨房多用清洗剂稀释0～10倍的去污力，前者明显优于后者，且稀释10倍后的去污力仍高达90%以上。本研究从廉价的工业品原料制备的近中性水基清洗剂适用温度范围较宽，综合清洗性能优异，且制备工艺简单，具有广泛的应用前景。

关键词: 表面活性剂, 油烟机重油垢, 水基清洗剂, 正交实验, 去污力, 表面活性剂, 油烟机重油垢, 水基清洗剂, 正交实验, 去污力