SURFACTANT CONSISTING OF POLYALKOXYL HYDROXYETHYL FATTY ACID AMIDE COMPOSITION AND PREPARATION METHOD THEREOF

摘要

A surfactant consisting of polyalkoxyl hydroxyethyl fatty acid amide composition and the preparation method thereof are provided. The polyalkoxyl hydroxyethyl fatty acid amide comprises groups derived from one or more saturated or unsaturated C8-C22 fatty acid. The method includes reacting two or more fatty acid methyl esters with mono ethanolamine to obtain hydroxyethyl fatty acid amide, introducing C2-C4 oxyalkylene and alkoxylating the hydroxyethyl fatty acid amide in the presence of catalyst, degassing at high temperature and neutralizing the product obtained by alkoxylating. The surfactant has good thickening properties and foam stability, and is liquid at room temperature. The surfactant can be easily used in production and is free of hazard components such as mono ethanolamine and etc.