AEO<sub>5</sub>/SLS二元泡沫抑尘剂复配与润煤性能研究

doi:10.11896/cldb.24120064

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Abstract To investigate the optimal binary foam ratio of fatty alcohol polyoxyethylene ether (AEO₅) and sodium lauryl sulfate (SLS) for enhancing dust suppression performance, a combination of physical experiments and molecular simulations was employed to study the stability and wettability of the binary dust-suppressing foam. Foam stability and static contact angle measurements were used to evaluate the optimal ratio of the binary foam suppressant and its wetting performance on long-flame coal. Its effectiveness was further validated through practical engineering applications. Molecular dynamics (MD) and density functional theory (DFT) calculations were used to analyze intermolecular interactions, hydrogen bond properties, and electrostatic potential. The results show that the optimal AEO₅/SLS ratio is 6∶30, under which the shortest defoaming time is 156 min, and the minimum static contact angle of the solution is 17.94°. The dust suppression efficiencies for total dust and respirable dust reached maximum values of 94% and 87%, respectively. Correlation analysis of experimental and molecular simulation results indicates that at the optimal ratio, the interaction energy between surfactant molecules and water molecules is maximized, resulting in the thickest foam liquid film and the highest stability. Additionally, under this ratio, the foam liquid film exhibits the lowest surface tension, providing more adsorption sites for water molecules when SLS molecules interact with long-flame coal molecules, thereby enhancing wettability. This study provides theoretical gui-dance for the development of novel multi-component foam dust suppressants.

Key words： foam dust suppression coal mine dust blending ratio foam stability foam wettability

Published: 25 November 2025 Online: 2025-11-14

CLC number:

TD714.4

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	Articles by authors
	ZHANG Jiangshi
	LIU Pengcheng
	FANG Lei
	HAN Fangwei
	TONG Linquan
	LIU Jianguo
	LIANG Yunfei
	YANG Juan

Cite this article:

ZHANG Jiangshi,LIU Pengcheng,FANG Lei, et al. Study on the Formulation and Coal-wetting Performance of AEO₅/SLS Binary Foam Dust Suppressant[J]. Materials Reports, 2025, 39(22): 24120064-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24120064 OR https://www.mater-rep.com/EN/Y2025/V39/I22/24120064

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