在洗碗剂中的泡研究:非离子表面活性剂添加对泡形成的影响
Hotaka Asano1,2, Masako Nomura3, Yukihiro Kaneko3
1Lion Corporation.
Journal of oleo science
|April 2, 2025
概括
脂肪酸单乙醇胺 (MEA) 通过促进脱质化,增强洗碗剂中的泡形成. 无离子表面活性剂可以促进去质子化而不会削弱相互作用,从而提高泡稳定性和洗剂性能.
科学领域:
- 合体和表面科学科学
- 表面活性剂化学 表面活性剂化学
- 配方科学科学 配方科学
背景情况:
- 在保持洗剂功率的同时优化泡形成对于洗碗剂开发至关重要.
- 泡剂在复杂的配方系统中起作用的确切机制尚不清楚.
- 了解这些机制对于设计有效和高性能清洁产品至关重要.
研究的目的:
- 在不影响清洗效率的情况下,识别促进洗碗剂泡形成的成分.
- 阐明这些配方中改善泡生成的潜在机制.
- 评估特定添加剂对发泡和清洁性关键指标的影响.
主要方法:
- 使用动态表面张力降低的最大速度 ((dγt/dt) max) 作为泡形成的定量指标.
- 研究了pH, (dγt/dt) max和小粒细胞分子流动性对发泡的作用.
- 评估了脂肪酸单乙醇胺 (MEA) 和脂肪酒精聚氧乙烯乙烯 (AE) 对聚氧乙烯乙烯硫酸盐 (AES) 和 N,N-二甲基二甲胺 N-氧化物 (DDAO) 基溶液的增泡作用.
主要成果:
- 添加多氧乙烯n-多基单甲胺 (C12MEA(2) 于AES/DDAO溶液时,其度在pH6以上增加 (dγt/dt) max,表明DDAO增强了deprotonation.
- 聚氧乙烯n-多德乙烯 (C12AE(20)) 没有改变 (dγt/dt) max随着pH值的增加,但与C12MEA(2) 相比,导致了较高的细胞分子流动性.
- C12MEA(2) 显示了依赖pH值的泡形成增强,与DDAO脱有关.
结论:
- 在AES/DDAO系统中,促进DDAO脱和增加pH的非离子表面活性剂是有效的泡增强剂.
- 这些表面活性剂必须在空气-水界面上增强吸附,而不会削弱AES和DDAO之间的分子间相互作用.
- 该研究为开发具有优越发泡性能的改进的洗碗剂配方提供了机械的理解.
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