二氧化钛花状结构在木材表面的构筑及疏水性研究

Construction of Flower-like TiO_2 on the Wood Surface and Research of Wood's Hydrophobicity

为提高木材的疏水性能,通过低温水热技术路线,以三氯化钛为钛源,将二氧化钛花状结构构筑在木材表面,辅以低表面能物质硬脂酸,使木材由亲水性变为疏水性。扫描电子显微镜(SEM)和静态接触角等测试手段对处理后的木材进行了表征。结果显示,木材表面的水接触角可提高到约140°,呈现出强疏水性。

In order to improve wood＇s hydrophobicity,we change the wood＇s property from hydrophilicity to hydrophobicity via low temperature hydrothermal route,using TiCl3 as titanium source to construct flower-like TiO2 on the surface of wood,following with the treatment of low-surface-energy materials.SEM and water contact angle（CA） were employed to characterize the treated wood.The results indicate that the CA of wood surface can be improved to about 140°,which means the strong hydrophobicity.