In addressing the limitations of wood's susceptibility to water and moisture, this study explored the development of a durable, superhydrophobic surface through a novel ɛ-polylysine/polydimethylsiloxane (PDMS)/wax composite system. Leveraging the layer-by-layer (LBL) assembly, the incorporation of cationic ɛ-polylysine not only improved the adherence of PDMS and wax to the wood surface through electrostatic attraction but also facilitated a more uniform distribution, achieving optimal hydrophobicity at a ɛ-polylysine concentration of 2 g/L. The synergistic effect of the wood's natural rough structure and the deposition of these hydrophobic substances endowed the treated wood with superhydrophobic properties, showcasing exceptional self-cleaning capabilities by efficiently repelling a variety of liquid contaminants. Durability assessments through sandpaper abrasion, chemical exposure, and accelerated weathering tests confirmed the enhanced long-term stability of the treated wood surfaces. Furthermore, the incorporation of ε-polylysine provided nice antimicrobial properties, showing a substantial reduction in bacterial adhesion. The ε-polylysine/PDMS/wax composite system represents a significant advancement in the development of multifunctional wood surfaces, promising broader applications in sustainable building materials, furniture, and packaging solutions.

中文翻译：

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通过ε-聚赖氨酸/PDMS/蜡处理构建耐用、多功能超疏水木材表面


为了解决木材对水和湿气敏感性的局限性，本研究探索了通过新型ε-聚赖氨酸/聚二甲基硅氧烷（PDMS）/蜡复合系统开发耐用的超疏水表面。利用逐层（LBL）组装，阳离子ε-聚赖氨酸的掺入不仅通过静电吸引力提高了PDMS和蜡对木材表面的粘附性，而且促进了更均匀的分布，在ε-聚赖氨酸下实现了最佳的疏水性。聚赖氨酸浓度为 2 g/L。木材的天然粗糙结构和这些疏水物质的沉积的协同效应赋予了处理过的木材超疏水特性，通过有效排斥各种液体污染物，展现出卓越的自洁能力。通过砂纸磨损、化学暴露和加速风化测试进行的耐久性评估证实，经过处理的木材表面的长期稳定性得到了增强。此外，ε-聚赖氨酸的加入提供了良好的抗菌特性，显示出细菌粘附的显着减少。 ε-聚赖氨酸/PDMS/蜡复合系统代表了多功能木材表面开发的重大进步，有望在可持续建筑材料、家具和包装解决方案中得到更广泛的应用。