Abstract: A high molecular weight nonionic emulsifier which has the similar chemical structure as epoxy resin was synthesized by the reaction of PEG modified epoxy resin with diethanolamine, and was used to prepare a waterborne epoxy emulsion. The corrosion resistance of the prepared epoxy emulsion for oil well cementing was evaluated.

Key words: waterborne epoxy, oil well cementing, latex cement, corrosion protection

摘要： 采用聚乙二醇改性环氧树脂与二乙醇胺反应，合成了与环氧树脂分子结构相匹配的非离子型乳化剂，用其制备水性环氧乳液，并对水性环氧乳液有机聚合物用在固井水泥中的防腐蚀性能进行了评价。

关键词: 水性环氧, 固井, 胶乳水泥, 防腐蚀