| 摘要: |
| 以正辛酸、羟乙基乙二胺和氯乙酸钠为原料，合成了辛酸咪唑啉表面活性剂，用傅里叶变换红外光谱对咪唑啉中间体进行了表征，并研究了辛酸咪唑啉物化性能。结果表明，该表面活性剂cmc为6×10- 4 mol·L-1，γcmc为29.5 mN·m-1；质量分数为0.3%时，在质量分数8%HCl溶液体系中对45#碳钢片缓蚀率为92%；发泡和稳泡能力较差，润湿性能较好。 |
| 关键词: 辛酸咪唑啉 工业清洗 低泡 缓蚀剂 |
| DOI：10.13222/j.cnki.dc.2017.08.010 |
| 分类号:TQ423 |
| 基金项目: |
|
| Synthesis and properties of octanoic acid imidazoline surfactant |
|
ZHANG Gao-fei
|
|
Shanghai Fine Chemical Co., Ltd.
|
| Abstract: |
| Octanoic acid imidazoline surfactant was synthesized by n-octanoic acid, hydroxyethyl ethylene diamine and sodium chloroacetate. The structure of intermediate was characterized by FT-IR. The physicochemical properties of octanoic acid imidazoline
were studied. The results showed that, the critical micelle concentration (cmc) was 6×10-4 mol·L-1 and the lowest surface tension (γcmc) was 29.5 mN·m-1; the corrosion inhibition efficiency to carbon steel sheets 45# in 8% hydrochloric acid solution was 91% at the concentration of 0.3%; and it exhibited poor properties of foaming and foam stability but nice wetting property. |
| Key words: octanoic acid imidazoline industrial cleaning low-foam corrosion inhibitor |
