斯潘类非离子表面活性剂的生产与应用

Production and Application of Span Nonionic Surfactants

综述了斯潘类非离子表面活性剂的性质、生产方法和用途。重点介绍了先成酐后酯化两步法生产斯潘类非离子表面活性剂的工艺,醚化反应中使用具有抗氧化作用的复合型催化剂,酯化反应中选用碳酸氢钠为酯化催化剂。系统介绍了斯潘类产品的用途,尤其是斯潘与吐温的复配,使用效果更佳,可作为乳化剂、分散剂、增溶剂、润湿剂、起泡剂、消泡剂、防静电剂、防锈剂等主要成分,广泛用于食品行业、医药、化妆品、油田化学品、农药、化纤纺织印染、有机合成、微量无素检测增敏剂、纳米颗粒制备等领域。

The properties, production and application of Span nonionic surfactants were reviewed with an emphasis on the two - step process comprising anhydride formation and esterification. In etherification, composite catalysts with antioxidation was used and in esterification, sodium hydrogen carbonate was used as catalyst. The applications of Span nonionic surfactants, especially the combination of Span nonionic surfactants with Tween surfactants with better behavior were systematically introduced.They could be used as emulsifier, dispersing agent, solubilizing agent, wetting agent, foaming agent, defoaming agent, antistatic agent and rust preventing agent and so on. They had wide use in many fields such as food industry, pharmaceutical industry, cosmetic industry, oilfield chemicals etc.