苯丙氨酸衍生物诱导SiO<sub>2</sub>矿化杉木复合材的制备及性能研究

doi:10.11896/cldb.24020024

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Abstract Based on the principle of biomineralization, the phenylalanine derivatives serve as a template and inducer and graft it onto Chinese fir cell wall, combined with sol-gel method, inducing the ordered deposition and regulating crystalline morphology of polyhydroxy-SiO₂, thereby achieving synergetic effect of enhancing the wood mechanical performance. In result, the way of inducing SiO₂ mineralization of Chinese fir by phenylalanine derivatives can be divided into chemical combination (cell wall) and physical deposition (cell lumen), among them, chemical combination is that the organic film of rich in mineralization site formed through the combination of phenylalanine derivatives and Chinese fir, which can induce the nucleation, crystallization, and ordered deposition, eventually generated rod-shaped SiO₂. Rod-shaped SiO₂ supports effectively wood structure and diffuse the external force.The longitudinal compressive strength, bending strength, elastic modulus, compressive weight ratio and bending strength to weight ratio are 49.76 MPa, 65.14 MPa, 8 010.83 MPa, 1 777.14 N·m/kg, and 2 326.43 N·m/kg, respectively. Compared with the blank group, the values of fir increased by 54.29%, 27.20%, 20.16%, 32.26% and 9.03%, respectively.

Key words： biomimetic mineralization phenylalanine wood physical and mechanical properties strength-weight ratio

Published: 25 February 2025 Online: 2025-02-18

CLC number:	Q811
	S781.7

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	Articles by authors
	DENG Zebin
	LIU Jing
	LAI Shenghui
	LIU Da
	HUANG Jinzhuo
	YUAN Guangming

Cite this article:

DENG Zebin,LIU Jing,LAI Shenghui, et al. Preparation and Properties of SiO₂ Mineralized Chinese Fir Composite Induced by Phenylalanine Derivatives[J]. Materials Reports, 2025, 39(4): 24020024-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24020024 OR https://www.mater-rep.com/EN/Y2025/V39/I4/24020024

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