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

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