脂肪醇醚琥珀酸酯盐的性能研究

doi:10.3969/j.issn.1001-1803.2020.10.004

摘要/Abstract

摘要：

研究了不同环氧乙烷（EO）数的新型脂肪醇醚琥珀酸酯盐表面活性剂（AE_nCE-Na,n=3,5,7,9）的平衡表面张力、动态表面张力、接触角,及包括润湿性、乳化性、泡沫性和去污性在内的应用性能。结果表明：AE₃CE-Na不仅在表面活性方面降低表面张力的效率和能力最强,而且在石蜡膜上的润湿性也最好。不同EO加合数的AE_nCE-Na整体的扩散速率均较快。在应用性能方面,AE₃CE-Na的润湿性、乳化性（包括液体石蜡和大豆油）和发泡性最佳,AE₉CE-Na的去污性和稳泡性最佳。

关键词: 脂肪醇醚琥珀酸酯盐, 表面张力, 接触角, 应用性能

Abstract:

A series of novel surfactants, i.e. salts of fatty alcohol polyoxyethylene ether succinates with different ethylene oxide （EO） numbers （AE_nCE-Na, n=3, 5, 7, 9）, were studied by measurement of equilibrium surface tension, dynamic surface tension, contact angle as well as the evaluation of application performance in wetting, emulsifying, foaming and detergency. The results showed that, AE₃CE-Na not only exhibited the highest efficiency and ability to reduce the surface tension of solutions, but also showed the best wettability on the paraffin film. The diffusion rate of AE_nCE-Na with different EO numbers were all fast. In terms of application performance, AE₃CE-Na showed the best wetting, emulsifying （including liquid paraffin and soybean oil） and foaming properties, while AE₉CE-Na showed the best detergency and foam stability.

Key words: fatty alcohol polyoxyethylene ether succinate, surface tension, contact angle, application properties

中图分类号:

TQ423

吴志芳,李运玲. 脂肪醇醚琥珀酸酯盐的性能研究[J]. 日用化学工业, 2020, 50(10): 676-680.

WU Zhi-fang,LI Yun-ling. Study on the properties of salts of fatty alcohol polyoxyethylene ether succinates[J]. China Surfactant Detergent & Cosmetics, 2020, 50(10): 676-680.

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样品名称	cmc/	γ_cmc/	Г_max/	A_min/	pc₂₀	cmc/c₂₀
样品名称	（mmol·L^-1）	（mN·m^-1）	（μmol·m^-2）	nm²	pc₂₀	cmc/c₂₀
AE₃CE-Na	0. 045 9	26.93	1.54	1.08	2.81	29.67
AE₅CE-Na	0. 054 4	28.17	1.48	1.12	2.67	25.66
AE₇CE-Na	0. 059 9	29.95	1.37	1.21	2.63	25.60
AE₉CE-Na	0. 070 0	33.01	1.89	0.88	1.97	6.54

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