脂肪酸甲酯磺酸盐的性能测试及其在洗衣液中的应用  

The performance test of fatty acid methyl ester sulfonate and its application in the liquid detergent

作　　者：宋金玉 彭志强 孙笑宇 SONG Jin-yu;PENG Zhi-qiang;SUN Xiao-yu(Shanxi Pharmaceutical Vocational College,Taiyuan,Shanxi 030031,China)

机构地区：[1]山西药科职业学院,山西太原030031

出　　处：《日用化学工业》2018年第12期691-694,共4页China Surfactant Detergent & Cosmetics

基　　金：山西省教育科学"十三五"规划资助项目(GH-18231)

摘　　要：分别采用电位滴定法、Ross-Miles泡沫仪、改进的酸滴定法和浊度法测试了脂肪酸甲酯磺酸盐(MES)的水解稳定性、发泡稳泡性能、钙皂分散力及Krafft点,并测试了含MES的洗衣液的稳定性和去污性能。结果表明,储存温度为45℃时,MES在p H=4. 5～9. 0时是稳定的,当p H达到10. 0时,α-磺基脂肪酸二钠盐(DS)质量分数明显增加,水解现象较明显; MES对钙皂的分散力为2. 5 g钙皂/g MES,LAS对钙皂的分散力为0. 34 g钙皂/g LAS; MES的Krafft点约为20. 9℃;含MES的洗衣液配方产品具有很好的稳定性,去污性能能达到国标要求。The hydrolytic stability,foaming power and foam stability,lime soap dispersing power and Krafft point of fatty acid methyl ester sulfonate(MES)were measured by potentiometric titration,Ross-Miles foam instrument,improved acidometric titration and turbidimetric test,respectively.The stability and detergency of the liquid detergent containing MES were also tested.The results show that when the storage temperature is 45℃,MES is stable at pH 4.5-9.0,however,when pH is 10.0,the mass fraction of disodium salt ofα-sulfonated fatty acid(DS)increases,indicative of obvious hydrolysis;MES shows excellent lime soap dispersing power with a value of 2.5 g calcium soap per gram of MES(In contrast,the value for LAS is 0.34 g calcium soap per gram of LAS);The Krafft point of MES is approximately 20.9℃;The liquid detergent products containing MES have excellent stability,and the detergency performance can meet the requirements of the national standard.

关 键 词：脂肪酸甲酯磺酸盐 水解稳定性 钙皂分散力 洗衣液 

分 类 号：TQ423.11[化学工程]