印染助剂Issue(12)：10-13,4.
乙氧基化对表面活性剂最终生物降解性能的影响
Effect of ethoxylation on ultimate biodegradability of surfactants
摘要
Abstract
The effect of ethoxylation on ultimate biodegradability of surfactants was studied by CO2 evolu⁃tion method. The results showed that for nonionic surfactants alkyl polyglycosides (APG) and the correspond⁃ing AEG, after ethoxylation the ultimate biodegradability of AEG was increased slightly compared with APG;for anionic surfactants di-stearic acid methyl ammonium methylsulfate (2C17EQDMS) and the corresponding ethoxylated di-stearic acid hydroxyethyl methyl ammonium methylsulfate (2C17EQDMS-3EO), after ethoxyl⁃ation the ultimate biodegradability of 2C17EQDMS-3EO was also increased compared with 2C17EQDMS; but for tri-stearic acid methyl ammonium methylsulfate (3C17EQDMS) and the corresponding ethoxylated tri-stea⁃ric acid methyl ammonium methylsulfate 3C17EQDMS-nEO, after ethoxylation the ultimate biodegradability of 3C17EQDMS-nEO was decreased, and with the increase of EO chains, the biodegradability was on the decline.关键词
乙氧基化/最终生物降解性能/表面活性剂Key words
ethoxylation/ultimate biodegradability/surfactants分类
化学化工引用本文复制引用
张广良,冯瑜,李国晋,宋鹏..乙氧基化对表面活性剂最终生物降解性能的影响[J].印染助剂,2014,(12):10-13,4.基金项目
山西省青年基金项目(2011021010-2) （2011021010-2）
