The amino-acid imidazoline amphoteric surfactant was prepared from dichloroethane and vegetable-oil fatty acid as raw materials by aminolysis, esterffication and hydroxymethylation.

以二氯乙烷与植物油脂肪原料,通过氨解、酯、羟甲基缩合反氨基类咪唑啉型两性表面活性剂。