C_(16/18)脂肪酸甲酯乙氧基化物性能研究  

Study on the Performance of C_(16/18) Fatty Acid Methyl Ester Ethoxylate

作　　者：李晓利 LI Xiao-li(Shenyang University of Technology,Liaoyang Liaoning 111003,China)

机构地区：[1]沈阳工业大学,辽宁辽阳111003

出　　处：《辽宁化工》2022年第8期1062-1065,共4页Liaoning Chemical Industry

摘　　要：制备了一系列C_(16/18)脂肪酸甲酯乙氧基化物(FMEE),系统评价了产品指标与性能的对应关系。结果表明:随着环氧乙烷(EO)数量的增多,FMEE浊点呈上升趋势,表面张力能力、泡沫高度、去污能力和润湿力均呈先上升后下降趋势,乳化能力逐渐上升。最终筛选出加成9~12 EO的FMEE性能较优。以C_(16/18)脂肪酸甲酯加成12EO的乙氧基化物为基准物,考察了原料中C_(16)和C_(18)比例变化对乙氧基化物性能的影响,当两者比例为20∶78左右时其乙氧基化物综合性能较优。通过与阴离子表面活性剂复配,解决了FMEE由于酯基结构带来的耐碱性和耐高温性能下降问题。研究表明,FMEE与脂肪酸甲酯磺酸钠(MES)配伍性良好,碱性条件下高温放置24 h后产品外观无任何变化。A series of C_(16/18) fatty acid methyl ester ethoxylate(FMEE)was prepared.The corresponding relation between products specification and performance was evaluated systematically.The results showed that,with the increase of ethylene oxide(EO),the cloud point showed an upward trend,and surface tension ability,foam height,detergency ability and emulsifying ability first increased and then decreased,and the wetting ability first increased and then decreased.Finally,FMEE with 9~12 EO was selected for better performance.Based on the ethoxylates of C_(16/18) fatty acid methyl ester with 12 EO,the effect of the proportion of C_(16) to C_(18) was studied,with the ratio about 20∶78,the comprehensive performance of ethoxylates was better.The degradation of alkaline stability and high temperature resistance of FMEE was solved by blending with anionic surfactant due to ester-based structure.The study showed that FMEE and sodium fatty acid methyl ester sulfonate(MES)had good compatibility.Storage under high temperature conditions,the product appearance would not change exceed 24 h.

关 键 词：脂肪酸甲酯乙氧基化物 去污力 乳化力 润湿力 耐碱性 

分 类 号：TQ649.4[化学工程—精细化工]