Improvement of Cunninghamia lanceolata Plantation Wood by Sol-Gel
In order to improve the dimensional stability,hydrophobicity and aging resistance of Cunning-hamia lanceolata plantation wood and promote its value-added utilization,the sol-gel method was used to modify Cunninghamia lanceolata plantation wood,and the dimensional stability,hydrophobicity and aging resistance of the modified wood were analyzed and evaluated in this paper.The results showed that SiO2 particles were produced in the surface and internal voids of the Cunninghamia lanceolata plantation wood.Compared with the raw wood,the water absorption and swelling thickness of the modified wood were decreased,and the dimensional stability was significantly improved,the aging resistance of the mod-ified material was improved by 2.3 times,and the contact angle of the modified material was significantly increased,indicating that the hydrophobicity of the modified material was significantly improved.
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