磺化脂肪酸甲酯混合溶液的清洗性能
Cleaning ability of mixed solutions of sulfonated fatty acid methyl esters
摘要：
在这里，我们提出了一个系统的研究结果，从固体表面（瓷器和不锈钢）的脂肪酸磺酸甲酯（SME），钠盐的解决方案的油性沉积物的清洁。两性离子十二烷基二甲基氧化胺（DDAO）已被用作助表面活性剂。作为植物油和矿物油的代表，已使用葵花籽油和轻质矿物油。已经监测了油滴从固体基底（卷起机制）脱离的过程。在瓷器的情况下，通过SME和DDAO的混合溶液实现了出色的油清洁。在不锈钢的情况下，SME的二元和三元混合物提供了优异的清洁（优于直链烷基苯磺酸盐和月桂基醚硫酸钠的清洁），其还可以包含DDAO。对于所研究的系统，良好的清洁既不与油/水界面张力，也不与表面活性剂链长和头基类型。这些数据意味着，控制因素可能是在固体/水界面上形成的胶束层的厚度和形态。结果表明，SME混合物代表了用于家用洗涤剂中的制剂的有前途的体系，还考虑到SME的其他有用性质，例如生物降解性、皮肤相容性和硬水耐受性。
英文摘要：
Here, we present results from a systematic study on cleaning of oily deposits from solid surfaces (porcelain and stainless steel) by solutions of fatty acid sulfonated methyl esters (SME), sodium salts. The zwitterionic dodecyldimethylamine oxide (DDAO) has been used as a cosurfactant. As representatives of the vegetable and mineral oils, sunflower seed oil and light mineral oil have been used. The process of oil drop detachment from the solid substrates (roll-up mechanism) has been monitored. In the case of porcelain, excellent cleaning of oil is achieved by mixed solutions of SME and DDAO. In the case of stainless steel, excellent cleaning (superior than that by linear alkylbenzene sulfonate and sodium lauryl ether sulfate) is provided by binary and ternary mixtures of SMEs, which may contain also DDAO. For the studied systems, the good cleaning correlates neither with the oil/water interfacial tension, nor with the surfactant chainlength and headgroup type. The data imply that governing factors might be the thickness and morphology of admicelle layers formed on the solid/water interface. The results indicate that the SME mixtures represent a promising system for formulations in house-hold detergency, having in mind also other useful properties of SME, such as biodegradability, skin compatibility and hard water tolerance.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
