关于MES性能与应用的疑惑、诀窍和前景

MES-myths,mysteries and perspectives on properties and use

文献报道了MES的许多优点,也提到其性质上可能存在的某些缺点。比如,研究表明纯组分MES的浊点高于其他阴离子表面活性剂,于是怀疑MES的溶解性可能会限制其在冷水中的洗涤。再则,MES的水解稳定性低于其他阴离子表面活性剂,这可能是MES的另一个主要缺点。拟探讨这些问题,并将提出一些证据,以表明MES实际上是一种卓越的表面活性剂,完全可以配方出适用于低温洗涤的洗涤剂产品。介绍了一些采用MES为主要表面活性剂生产洗衣粉和液洗剂的工艺。

The literature reports many advantages of MES,but also frequently mentions certain properties that may be disadvantages.Thus,studies of pure component aqueous solutions report Krafft point temperatures for MES are higher than that of other common anionic surfactants,suggesting that solubility ofMESmay be a limitation,especially in cold water washing.Further,they point to the hydrolysis ofMES as a limitation in comparison with other anionic surfactants.This paper will review these issues and present ample evidence to show that in fact MES is a versatile surfactant that can be formulated into a broad range of detergent products,including formulas that are suitable for low temperature washing applications.Hydrolysis of MES can be controlled and avoided and we＇ll discuss how to do that.We will review product formulations and showtypical examples of heavy duty powder and liquid products and other products which use MES as a primary surfactant.