硅酸钠浸渍改性对杉木渗透性能的影响

doi:10.11896/cldb.24080174

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Abstract In order to improve the permeability of Chinese fir, the effects of sodium silicate concentration, sodium silicate modulus and aging time on the physical and mechanical properties and permeability of Chinese fir were investigated with low concentration sodium silicate as the osmotic modifier, and the best osmotic modification process was obtained. The effects of sodium silicate concentration, sodium silicate modulus and aging time on the permeability of modified Chinese fir were investigated by single factor test. The microstructure and chemical structure of modified Chinese fir were analyzed by modern analytical methods such as scanning electron microscopy. The results of single factor test showed that the water absorption of modified Chinese fir increased by 65.93% when the concentration of sodium silicate was 5%, the modulus of sodium silicate was 3.3 and the aging time was 6 h. After low concentration sodium silicate infiltration modification, the permeability of Chinese fir was significantly improved compared with that of unmodified wood, and the mechanical properties were good. Therefore, the modified wood had more advantages than the unmodified wood in the subsequent modification process.

Key words： Chinese fir sodium silicate impregnation modification mechanical property permeability

Published: 10 October 2025 Online: 2025-09-24

CLC number:

S781.7

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	Articles by authors
	WU Jiang
	XU Bin
	LIU Yuxian
	ZHANG Yuan
	LI Ping
	ZUO Yingfeng

Cite this article:

WU Jiang,XU Bin,LIU Yuxian, et al. The Effect of Sodium Silicate Impregnation Modification on the Permeability of Chinese Fir[J]. Materials Reports, 2025, 39(19): 24080174-6.

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https://www.mater-rep.com/EN/10.11896/cldb.24080174 OR https://www.mater-rep.com/EN/Y2025/V39/I19/24080174

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