Interfacial molecular array behaviors of mixed surfactant systems based on sodium laurylglutamate and the effect on the foam properties

Chenyang, Xue; Zhao, Hui; Wang, Qiaozhi; Zhang, Kai; Li, Ying

doi:10.1080/01932691.2017.1409634

Cited by 10 publications

(8 citation statements)

References 33 publications

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“…Moreover, the glycine head group of SLG is smaller than that of SLL. SLG might coadsorb with SLL at the air–water interface in a crossed arrangement to improve the adsorption propensity of surfactants, resulting in a relatively dense molecular arrangement . Besides, intermolecular hydrogen bonding (CO···H–N) attenuates the electrostatic repulsion of the hydrophilic head group.…”

Section: Resultsmentioning

confidence: 99%

“…SLG might coadsorb with SLL at the air−water interface in a crossed arrangement to improve the adsorption propensity of surfactants, resulting in a relatively dense molecular arrangement. 24 Besides, intermolecular hydrogen bonding (C�O•••H−N) attenuates the electrostatic repulsion of the hydrophilic head group. Micelles form easily because different surfactant molecules are arranged closer together in water, with smaller gaps in the hydrophilic head groups, fewer oriented water molecules around the hydrophilic groups of surfactants, more free water molecules, and increased disorder.…”

Section: Surface Tension Measurementsmentioning

confidence: 99%

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Study on the Properties of the Sodium Lauroyl Glycinate and Sodium Lauroyl Lactylate Composite System

et al. 2022

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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.

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Section: Resultsmentioning

confidence: 99%

Section: Surface Tension Measurementsmentioning

confidence: 99%

Study on the Properties of the Sodium Lauroyl Glycinate and Sodium Lauroyl Lactylate Composite System

et al. 2022

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“…近年来, 随着全社会对环境友好性越来越重视, 采用绿色表面活性剂替代传统表面活性剂已是大势所趋, 以烷基糖苷、氨基酸表面活性剂等为代表的以天然来源物质为原材料、生物安全性好的新型表面活性剂, 稳定气泡性能优异, 应用前景广阔 [18,19] .…”

Section: 无膜微/纳米气泡unclassified

Micro/nano bubbles as templates in the preparation of porous materials

Qin¹,

Wang²,

Zhao³

et al. 2021

Sci. Sin.-Chim

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Recent studies have found that tiny-sized bubbles generated in the liquid phase and at the solid-liquid interface not only have extraordinary high stability, but also have unique physicochemical properties. The application prospects of micro/nano bubbles in the fields of biomedicine, environmental pollution control, and functional material preparation have been gradually revealed. In this paper, the definition, classification and basic properties of micro/nano bubbles were introduced, and the research progress and understanding of our group in the control generation, stability mechanism and application of bulk micro/nano bubbles were briefly described. The template effect of micro/nano bubbles in the preparation of functional porous materials was introduced emphatically, and an outlook on their future development was provided.

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“…In recent years, amino acid surfactants show good biodegradability, low toxicity, low irritation, excellent foamability and being eco‐friendly (Chandra & Tyagi, 2013; Clapes & Rosa Infante, 2002), and have been widely used in many industries, such as cleaning and detergent products (Crotty et al, 2006), personal care (Dumont et al, 2016; Roso, 2007), and so on. Previous efforts showed that amino acid surfactants have good foaming ability and foam stability both as individual systems and mixed systems (Qiao & Qiao, 2013; Xue et al, 2018; Zhang, Sun, et al, 2016). Amino acid surfactants are expected to further improve the performance of new developed environmentally friendly firefighting foams.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on foaming and foam stability of multiple mixed systems of fluorocarbon, hydrocarbon, and amino acid surfactants

Sheng

Zhang

Song³

et al. 2023

J Surfact & Detergents

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This study focuses on the effect of amino acid surfactant (sodium lauroyl glutamate [SLG]) on foam properties of a mixture of fluorocarbon (FS‐50) and hydrocarbon (APG0810) surfactants. The molecular interactions, foamability, and foam stability of the surfactant solutions are systematically studied. The results show that SLG has stronger ability to lower surface tension of water compared to APG0810, but worse that than FS‐50, and to adsorb onto gas/liquid interface in mixed solutions with FS‐50 compared to APG0810. The addition of SLG increased foamability of APG0810/FS‐50 mixed solution, and decelerated foam drainage and coarsening of individual APG0810, individual FS‐50, and mixture of APG0810/FS‐50 solutions. The mixture of SLG/FS‐50 exhibited the higher foamability and foam stability than the frequently used critical component of the new developed AFFF, the mixture of APG0810/FS‐50. This study can provide guidance for the scientific application of amino acid surfactants in the development of environmentally friendly firefighting foams.

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Interfacial molecular array behaviors of mixed surfactant systems based on sodium laurylglutamate and the effect on the foam properties

Cited by 10 publications

References 33 publications

Study on the Properties of the Sodium Lauroyl Glycinate and Sodium Lauroyl Lactylate Composite System

Study on the Properties of the Sodium Lauroyl Glycinate and Sodium Lauroyl Lactylate Composite System

Micro/nano bubbles as templates in the preparation of porous materials

Comparative study on foaming and foam stability of multiple mixed systems of fluorocarbon, hydrocarbon, and amino acid surfactants

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