In-situ growth of hexaconazole/polydopamine/hexadecyltrimethoxysilane in multi-scale structured wood to prepare superhydrophobic wooden materials with decay resistance
In-situ growth of hexaconazole/polydopamine/hexadecyltrimethoxysilane in multi-scale structured wood to prepare superhydrophobic wooden materials with decay resistance
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DOI：
10.1016/j.cej.2023.146396
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发表时间：
2023-10
影响因子：
15.1
通讯作者：
Chuang-guo Shao;Xingxia Ma;Mingliang Jiang;Jingpeng Zhang
中科院分区：
文献类型：
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作者：
Chuang-guo Shao;Xingxia Ma;Mingliang Jiang;Jingpeng Zhang
利用木材的层状孔道和独特的介孔结构，在木材表面和内部原位生长并沉积了己唑醇、聚多巴胺（PDA）和十六烷基三甲氧基硅烷（HDTMS）。利用该方法制备了具有耐腐性的超疏水木材复合材料。己唑醇对木材真菌腐朽有抑制作用，经12周的变色栓菌和密粘褶菌室内腐朽试验，木材质量损失分别为0和0.06%，保持率为140 g/m3。更重要的是，通过PDA的氧化自聚合，粘合剂PDA锚定己唑醇纳米粒子，形成稳定的核壳结构，增加了木材的表面粗糙度。此外，基于PDA与木材中纤维素和半纤维素中亲水性-OH基团的缔合作用，将长链HDTMS沉积在木材表面，形成水接触角（WCA）为154°的超疏水多功能木质材料。基于其多功能和固有的耐久性，木材还显示出良好的化学稳定性和抗紫外线，高温和高湿度环境。
Using the layered channels of wood and its unique mesoporous microstructure, hexaconazole, polydopamine (PDA), and hexadecyltrimethoxysilane (HDTMS) were grown and depositedin-situon the surface and interior of wood. Using this method, a superhydrophobic wood composite with decay resistance was prepared. Hexaconazole inhibited wood fungal decay, and the mass losses of wood were 0 and 0.06% with a retention of 140 g/m3after laboratory decay tests for 12 weeks by usingTrametes versicolorandGloeophyllum trabeum,respectively. More importantly, through the oxidative self-polymerization of PDA, the adhesive PDA anchored hexaconazole nanoparticles to form a stable core–shell structure that increased the surface roughness of wood. In addition, based on the association of PDA with hydrophilic –OH groups in cellulose and hemicelluloses in wood, long-chain HDTMS was deposited on the surface of wood to form a superhydrophobic multifunctional wooden material with a water contact angle (WCA) of 154°. Based on its multifunctional and inherent durability, the wood also showed good chemical stability and resistance to UV, high- temperature, and high-humidity environments.