金属缓蚀剂Gemini型咪唑啉双季铵盐的合成及其性能的研究

合成了系列新型咪唑啉双季铵盐阳离子缓蚀剂（S-HSJ），研究并讨论了其在5%盐酸介质中对铜、铝等金属的缓蚀性能及缓蚀剂结构中亲油基部分碳链长度、缓蚀时间、缓蚀剂浓度等对缓蚀效果的影响。研究表明：S-HSJ系列咪唑啉双季铵盐对红铜、黄铜、铝及马口铁四种金属均表现出较传统单季铵盐与苯并三氮唑缓蚀剂好的缓蚀性能，S-HSJ-16双季铵盐添加量0.1%时缓蚀效率可达94~99%，S-HSJ与阴离子表面活性剂复配对铜腐蚀表现出明显协同效应。

Synthesis and Properties of Gemini Bis-imidazoline quaternary ammonium salt As Corrosion Inhibitor

A new series of Bis-imidazoline quaternary ammonium salt corrosion inhibitor（S-HSJ） was synthesized.The properties for copper, aluminum in 5% hydrochloric acid solution and the influences of the lipophilic structure of carbon chain length, corrosion time , concentration of corrosion inhibitor were investigated. The results show the series of S-HSJ corrosion inhibitor for copper, brass, aluminum and tinplate have shown better corrosion performance than traditional quaternary ammonium salt and Benzotriazole.The inhibition efficiency of S-HSJ-16 while adding amount of 0.1% achieve 94 ~ 99%. And the complex with anion surfactant for copper corrosion show synergy.