日用化学工业（中英文）2025，Vol.55Issue(1)：49-54,6.DOI:10.3969/j.issn.2097-2806.2025.01.006
季铵盐阳离子表面活性剂的合成与性能研究
Study on the synthesis and properties of quaternary ammonium cationic surfactants
摘要
Abstract
Surfactants play important roles in agricultural production by reducing surface tension,promoting liquid penetration,and enhancing adsorption,thereby improving the efficiency of pesticide utilization.A series of quaternary ammonium cationic surfactants NDA-C5 to NDA-C8 were prepared by using N,N-dimethyldecylamine and fatty acids as raw materials through quaternization reaction and ion exchange reaction.The structures were characterized by FT-IR,1H NMR and 13C NMR.The wetting and penetration,spreading,static surface tension,and dynamic surface tension were studied.The results showed that among the series of products,NDA-C8 exhibited the best performance.When the mass fraction of NDA-C8 was 0.100%(w/%),the static surface tension was reduced to 25.9 mN/m,the wetting time was 260 s,and the spreading area on superhydrophobic organic glass reached 102 mm2.In addition,NDA-C8 demonstrated excellent dynamic surface tension performance,with the surface tension rapidly decreasing from 53.3 mN/m to 34.2 mN/m in the range of 0.01 s to 1 s.The quaternary ammonium cation had good interfacial activity,and the adsorption diffusion coefficient at the interface further increased with the increase of the carbon chain length of counterion,so that the surface active properties were improved.In contrast to static surface tension,dynamic surface tension could more accurately reflect the situation in actual use.Furthermore,the preparation process of this series of products was simple,and the cost of raw materials was low,so they had promising application prospects.关键词
阳离子表面活性剂/季铵化/离子交换/表面活性Key words
cationic surfactant/quaternization/ion-exchange/surface activity分类
化学化工引用本文复制引用
秦恩博,周磊,王珏,陈绘林,顾雨星,王元有..季铵盐阳离子表面活性剂的合成与性能研究[J].日用化学工业（中英文）,2025,55(1):49-54,6.基金项目
江苏省高等学校自然科学研究面上项目(23KJD150014) （23KJD150014）
扬州市自然科学基金(YZ2023171) （YZ2023171）
扬州市绿杨金凤计划项目 （）
