以晶硅切割废液回收聚乙二醇制备的月桂酸聚乙二醇酯性能研究  

Study on the properties of lauric acid polyglycol ester prepared by regenerating polyethylene glycol from waste crystal-silicon-cutting liquid

作　　者：王泽云 陈海兰 孙鸿[1] 王杰[1] Zeyun Wang;Hailan Chen;Hong Sun;Jie Wang(Department of Applied Chemistry,Yuncheng College,Yuncheng,Shanxi 044000,China;Nafine Chemical Group Co.,Ltd.,Yuncheng,Shanxi 044000,China)

机构地区：[1]运城学院应用化学系,山西运城044000 [2]南风化工集团股份有限公司,山西运城044000

出　　处：《日用化学工业》2021年第9期839-843,共5页China Surfactant Detergent & Cosmetics

摘　　要：以晶硅切割废液回收聚乙二醇和月桂酸反应合成了月桂酸聚乙二醇酯(LAE-R),研究了其表面张力(γcmc)、临界胶束浓度(cmc)、润湿力、乳化力、泡沫性能、去污力和在餐具洗涤剂中的去油率等性能,并与脂肪醇聚氧乙烯醚(AEO-9)、工业级PEG400和月桂酸合成的月桂酸聚乙二醇酯(LAE-I)性能进行了对比。结果表明,LAE-R具有较高的表面活性,γcmc为28.9 mN/m,cmc为60.4 mg/L,低于LAE-I和AEO-9;对柴油和大豆油的乳化力与AEO-9相当,略低于LAE-I;润湿力和发泡力低于LAE-I和AEO-9,属低泡型表面活性剂;对炭黑、皮脂两种污布的综合去污力与LAE-I相当,对炭黑污布的去污力低于AEO-9;在餐具洗涤剂配方中的去油率与LAE-I和AEO-9基本一致,因原料成本低,在性价比方面具有一定的竞争优势。Lauric acid polyglycol ester(LAE-R)was synthesized by the reaction of lauric acid with the polyethylene glycol recycled from waste crystal-silicon-cutting liquid.The surface tension(γcmc),critical micelle concentration(cmc),wetting power,emulsifying power,foaming performance and detergency were measured,as well as the degreasing rate in a dishwashing detergent.These properties were compared with those of AEO-9 and lauric acid polyglycol ester(LAE-I)which had been synthesized from industrial-grade PEG400 and lauric acid.The results show that LAE-R has high surface activity(γcmc is 28.9 mN/m and cmc is 60.4 mg/L,which are lower than those of LAE-I and AEO-9).The emulsifying power of LAE-R on diesel oil and soybean oil is similar to that of AEO-9,but slightly lower than that of LAE-I.The wetting power and foaming power of LAE-R are lower than those of LAE-I and AEO-9.Therefore,LAE-R is a low-foam surfactant.LAE-R has the same comprehensive cleaning ability to carbon black cloth and sebum cloth as LAE-I,but its cleaning ability to carbon black cloth is lower than that of AEO-9.The degreasing rate of LAE-R is basically the same as those of LAE-I and AEO-9 during applied in a dishwashing detergent formula,however,LAE-R has a certain competitive advantage in cost performance due to its low raw material cost.

关 键 词：晶硅切割废液 回收聚乙二醇 月桂酸聚乙二醇酯 

分 类 号：TQ423[化学工程]