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Study on the Properties of the Sodium Lauroyl Glycinate and Sodium Lauroyl Lactylate Composite System
Langmuir ( IF 3.7 ) Pub Date : 2022-12-13 , DOI: 10.1021/acs.langmuir.2c02769 Jiamin Fan 1 , Jun Zhang 1 , Xiuquan Yang 1 , Liang Bai 1 , Yuan Zhou 1 , Zhiyu Wu 1 , Ziyu Qin 1
Langmuir ( IF 3.7 ) Pub Date : 2022-12-13 , DOI: 10.1021/acs.langmuir.2c02769 Jiamin Fan 1 , Jun Zhang 1 , Xiuquan Yang 1 , Liang Bai 1 , Yuan Zhou 1 , Zhiyu Wu 1 , Ziyu Qin 1
Affiliation
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The scientific community has shown a great deal of interest in sodium lauroyl glycine (SLG) and sodium lauroyl lactylate (SLL), two sustainable and eco-friendly substances that are considered as potential bio-friendly alternatives for petrochemical-based amphiphiles. In the present work, the formation of mixed micelle for SLG and SLL surfactant in water was investigated. Meanwhile, the surface interaction and thermodynamic parameters were calculated according to the surface tension curves. The results indicated that at certain ratios, SLG/SLL surfactant mixtures had synergistic effects that could yield higher surface activity and improve application performance. When the mole fraction of SLL (αSLL) was 0.4, γcmc achieved a minimum of 22.6 mN m–1 and displayed the best foaming properties. The mixed solution exhibited the best wetting ability when αSLL was 0.6. While αSLL was 0.8, the mixed solution showed the optimum dynamic adsorption properties. And it was found that the antibacterial property of SLG and SLL could be partially preserved after compounding. These results demonstrated for the first time that the mixed environmentally friendly surfactant SLG and SLL has a promising prospect for use in the personal care, detergent, and cosmetic industries.
中文翻译：
月桂酰甘氨酸钠与月桂酰乳酸钠复合体系的性能研究
科学界对月桂酰甘氨酸钠 (SLG) 和月桂酰乳酸钠 (SLL) 表现出极大的兴趣，这两种可持续且环保的物质被认为是基于石化的两亲物的潜在生物友好替代品。在目前的工作中，研究了 SLG 和 SLL 表面活性剂在水中混合胶束的形成。同时，根据表面张力曲线计算了表面相互作用和热力学参数。结果表明，在一定比例下，SLG/SLL 表面活性剂混合物具有协同效应，可产生更高的表面活性并改善应用性能。当SLL的摩尔分数（α SLL）为0.4时，γ cmc达到最小值22.6 mN m –1并显示出最好的发泡性能。当α SLL为0.6 时，混合溶液表现出最好的润湿能力。当α SLL为0.8 时，混合溶液表现出最佳的动态吸附性能。并发现SLG与SLL复配后可部分保留抗菌性能。这些结果首次表明混合环境友好型表面活性剂 SLG 和 SLL 在个人护理、洗涤剂和化妆品行业具有广阔的应用前景。
更新日期：2022-12-13
中文翻译：
月桂酰甘氨酸钠与月桂酰乳酸钠复合体系的性能研究
科学界对月桂酰甘氨酸钠 (SLG) 和月桂酰乳酸钠 (SLL) 表现出极大的兴趣，这两种可持续且环保的物质被认为是基于石化的两亲物的潜在生物友好替代品。在目前的工作中，研究了 SLG 和 SLL 表面活性剂在水中混合胶束的形成。同时，根据表面张力曲线计算了表面相互作用和热力学参数。结果表明，在一定比例下，SLG/SLL 表面活性剂混合物具有协同效应，可产生更高的表面活性并改善应用性能。当SLL的摩尔分数（α SLL）为0.4时，γ cmc达到最小值22.6 mN m –1并显示出最好的发泡性能。当α SLL为0.6 时，混合溶液表现出最好的润湿能力。当α SLL为0.8 时，混合溶液表现出最佳的动态吸附性能。并发现SLG与SLL复配后可部分保留抗菌性能。这些结果首次表明混合环境友好型表面活性剂 SLG 和 SLL 在个人护理、洗涤剂和化妆品行业具有广阔的应用前景。
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