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.
邓泽斌, 刘静, 赖升晖, 刘达, 黄金灼, 袁光明. 苯丙氨酸衍生物诱导SiO2矿化杉木复合材的制备及性能研究[J]. 材料导报, 2025, 39(4): 24020024-8.
DENG Zebin, LIU Jing, LAI Shenghui, LIU Da, HUANG Jinzhuo, YUAN Guangming. Preparation and Properties of SiO2 Mineralized Chinese Fir Composite Induced by Phenylalanine Derivatives. Materials Reports, 2025, 39(4): 24020024-8.
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