日用化学工业（中英文）2023，Vol.53Issue(12)：1398-1404,7.DOI:10.3969/j.issn.2097-2806.2023.12.006
联结基团对甜菜碱型双子表面活性剂清洁压裂液性能的影响
Effect of spacer on the performance of Gemini betaine surfactant in clean fracturing fluid
摘要
Abstract
Gemini betaine surfactants have the advantages of low pollution and low damage,which can be used in clean fracturing fluids for oilfield development.In this work,three Gemini betaine surfactants GAS-22-n(n=IPDI,HDI and TDI)with different spacers were synthesized by using erucic acid,N,N-dimethyl-1,3-propanediamine and sodium 3-chloro-2-hydroxypropanesulfonate as raw materials,and hexamethylene diisocyanate,toluene diisocyanate and isophorone diisocyanate as spacers.The effects of spacers on the properties were studied.The experimental results showed that,the long carbon chain of the spacer in GAS-22-HDI structure was flexible and easy to bend,exhibiting strong intermolecular interactions and being less influenced by external forces,which made it easier to form micelles and have good salt resistance,low surface tension and low cmc.The rigid benzene ring in GAS-22-TDI structure had a larger volume,and the micelles fused to form wormlike aggregates,further forming a dense three-dimensional network structure,endowing it with good temperature resistance,shear resistance,sand suspension,and viscosity.关键词
双子表面活性剂/甜菜碱/联结基团/清洁压裂液Key words
Gemini surfactant/betaine/spacer/clean fracturing fluid分类
化学工程引用本文复制引用
张永康,刘萌萌,万智卫,王耀聪,田咪咪,秋列维..联结基团对甜菜碱型双子表面活性剂清洁压裂液性能的影响[J].日用化学工业（中英文）,2023,53(12):1398-1404,7.基金项目
陕西省自然科学基础研究计划(2021JQ-669) （2021JQ-669）
