改性多巴胺消泡剂的制备及性能评价  

Preparation and performance evaluation of modified dopamine defoamer

作　　者：张应岚 林凌[1] 任雯 蒲迪 张新民 周太刚 ZHANG Yinglan;LIN Ling;REN Wen;PU Di;ZHANG Xinmin;ZHOU Taigang(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;State Key Laboratory of Petroleum and Petrochemical Pollutant Control and Treatment,China Petroleum Safety and Environmental Protection Technology Research Limited Company,Beijing 102206,China;Sichuan Guangya Polymer Chemical Limited Company,Chengdu 610500,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]中国石油安全环保技术研究院有限公司石油石化污染物控制与处理国家重点实验室,北京102206 [3]四川光亚聚合物化工有限公司,四川成都610500

出　　处：《应用化工》2024年第12期2793-2797,共5页Applied Chemical Industry

基　　金：国家自然科学基金面上项目(5237041601)。

摘　　要：为缓解生产过程中由于泡沫引起的质量安全和产率问题,以生物活性材料多巴胺和烷基异氰酸酯为反应原料,二月桂酸二丁基锡为催化剂,通过酯化反应合成了一种生物型多巴胺类衍生物作为消泡剂,通过核磁氢谱和红外光谱确定其结构。并对其消泡性能进行了表征,结果显示仅添加质量分数为3%~4%的生物型消泡剂就能将表面活性剂溶液产生的泡沫全部消除。该生物型消泡剂的消泡和抑泡性能优于市售消泡剂产品,同时具有较好的热稳定性能,在各类生产工业中有较好的应用前景。In order to alleviate the quality safety and yield problems caused by foam in the production process,a bio-type dopamine derivative was synthesized as a defoamer by esterification reaction using the bioactive materials dopamine and alkyl isocyanate as the reaction raw materials and dibutyltin dilaurate as the catalyst,and its structure was determined by nuclear magnetic hydrogen spectroscopy and infrared spectroscopy.The defoaming properties were characterized,and the results showed that only the addition of bio-based defoamer with a mass fraction of 3%~4%could completely eliminate the foam generated by the surfactant solution.The defoaming and antifoaming performance of this bio-based defoamer is better than that of commercially available defoamer products,and it has good thermal stability performance,which has a good application prospect in various production industries.

关 键 词：酯化反应 生物型 多巴胺类衍生物 消泡剂 

分 类 号：TQ423.95[化学工程]