阴/阳离子二元表面活性剂复配体系的发泡性能研究

研究了4种不同结构的阴离子表面活性剂(SDS、AES、AESS3、AESS7)与阳离子表面活性剂1227的复配相容性,并用Ross-Mile泡沫仪和搅拌法测试了它们及其复配液起泡性能与泡沫稳定性.研究结果表明分子中引入聚氧乙烯链可以提高阴离子表面活性剂与阳离子表面活性剂1227复配相容性,聚氧乙烯链越长,复配相容性越好;分子中引入较大空间体积位阻亲水基(琥珀磺酸酯)有利于阴、阳离子表面活性剂复配相容性;分子中既含聚氧乙烯链,又具有较大空间位阻亲水基(琥珀磺酸酯)的阴离子表面活性剂与阳离子表面活性剂1227具有较好的复配相容性.所选的阴离子表面活性剂与阳离子表面活性剂1227复配会降低其起泡能力,但与少量1227复配可以提高其泡沫稳定性.

The Foaming Property of Anionic and Cationic Surfactant Blending System

This paper studies the blending compatibility between four different anionic surfactant and cationic surfactant(1227).The foaming property of blending system was investigated by using Ross-Mile and agitating method.The experimental results show that the anionic surfactant with polyoxyethylene chain has better compatibility with 1227.The longer the polyoxyethylene chain,the better the compatibility.It favors compatibility between anionic and cationic surfactant when the anionic surfactant contains the hydrophilic group of big steric hindrance.The blending system has a better compatibility with 1227 when the anionic surfactant contains polyoxyethylene chain as well as the hydrophilic group of big steric hindrance of.The foamability of the blending system between elected anionic surfactant and 1227 is decreased,but the stability of foam is increased when adding a little 1227 into the anionic surfactant solution.