表面活性剂对多孔地聚物孔结构的调控研究

doi:10.11896/cldb.25020007

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Abstract To optimize the pore structure of fly ash-based porous geopolymers, this work compared the effects of five surfactants on the pore characteristics and mechanical properties of fly ash-based porous geopolymers. The results show that the addition of surfactants doesn’t change the phase or chemical composition of the geopolymer matrix but improves the foam stability of the porous geopolymer by reducing the surface tension of the alkaline solution, thereby enhancing its pore structure. Based on a comprehensive evaluation of pore structure and compressive strength, the optimal addition amounts of the five surfactants are as follows:Meap-k 0.04%, SDS 3%, CTAB 2%, Tween-80 1%, and APG 0.7%. The effectiveness of the surfactants, in descending order, is Meap-k, APG, Tween-80, SDS, and CTAB. The sample prepared with the optimal Meap-k amount achieves a total porosity of 83.8% and an open porosity of 71.4%. The findings, by optimizing the pore structure of porous geopolymers, provide reliable experimental evidence for their application in areas such as dust smoke filtration and wastewater treatment.

Key words： surfactant porous geopolymer fly ash porosity compressive strength surface tension

Published: Online: 2026-02-13

CLC number:

TB321

Corresponding Authors: luohj@smm.neu.edu.cn

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	Articles by authors
	XUE Siting
	CHEN Xiping
	LUO Hongjie
	WU Linli
	JIANG Hao
	LU Yihan

Cite this article:

XUE Siting,CHEN Xiping,LUO Hongjie, et al. Study on the Regulation of Porous Geopolymer Pore Structure by Surfactants[J]. Materials Reports, 2026, 40(3): 25020007-7.

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https://www.mater-rep.com/EN/10.11896/cldb.25020007 OR https://www.mater-rep.com/EN/Y2026/V40/I3/25020007

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