为提高木材的综合利用率,实现木材的表面功能化改性,首先用3-氨基丙基三乙氧基硅烷(KH550)与邻苯二甲酰氯制备改性配体,然后与Tb(NO3)3·6H2O反应制备出发光改性稀土铽配合物,最后将改性稀土配合物与杨木板材的表面通过水解缩聚反应,制备具有荧光性能的改性木材.通过红外光谱、X射线能谱、扫描电子显微镜及荧光光谱扫描,分析了木材表面的化学元素组成并推测了反应机理,观察了改性前后木材的表面微观形貌.结果表明:改性稀土配合物水解后,通过形成氢键和脱水缩合两个阶段结合到木材表面;改性铽芳香配合物在杨木材的表面形成一层致密的薄膜,生成具有荧光性能的改性木材;当反应时间达到8 h以后,荧光强度趋于稳定,当温度升高到60 ℃时,荧光强度达到最大,温度继续升高,荧光强度有所降低.%In order to improve the utilization of wood and achieve the functionalization of wood surface, the luminous woods were prepared.Firstly, the modified ligands were synthesized by the reaction between 3-aminopropyltriethoxysilane and phthaloyl dichloride.Then the modified ligands and the luminous terbium complexes that prepared with the terbium nitrate hexahydrate were concatenated on the surface of poplar veneer via hydrolysis condensation reaction to form the luminous wood.The elementary composition and micro morphology of wood surface were analyzed by FT-IR, EDXA and SEM.According to fluorescence spectrum, the mechanism of reaction was speculated.The results showed that the modified rare-earth complexes were combined on the surface of wood with the formation of hydrogen bond and the dehydration condensation.The compact membrane of the modified terbium complexes on the surface of wood endowed the wood with the fluorescence property.The fluorescence intensity of the modified wood promoted to the maximum when the reaction was carried out for 8 hours and the temperature of reaction rose to 60 ℃.But the fluorescence intensity would descend when the temperature of reaction was more than 60 ℃.
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