Robust superhydrophobic ORMOSIL hybrid coating via chemical-assembly engineering for wood protection

IF 21.8 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Advanced Composites and Hybrid Materials Pub Date : 2025-03-22 DOI:10.1007/s42114-025-01223-2

Xinxiang Zhang, Sainan Ou, Linxin Zhang, Jiaxin Tan, Wensheng Lin, Ran Li, Zhanhui Yuan

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Abstract

Poor mechanical stability of superhydrophobic coating limits its practical application. In this work, robust superhydrophobic organically modified silicate (ORMOSIL) hybrid coatings were fabricated on wood surface by a chemical-assembly engineering induced by click reaction of PMHS. The superhydrophobic ORMOSIL coating was hybridized from poly(methylhydrogen)siloxane (PMHS), tetravinyltetramethylcyclotetrasiloxane (V4), and silica nanoparticles (SNPs). The click reaction between PMHS and SNPs built a chemically bonded rough surface with very low surface energy, while click reaction between PMHS and V4 resulted in a strong glue of adjacent SNPs, endowing ORMOSIL hybrid coatings with good mechanical stability. Chemical-assembly engineering afforded ORMOSIL coatings superhydrophobicity, self-cleaning property, and good robustness, and the unique physical characteristic of ORMOSIL also gave superhydrophobic coatings excellent resistance to UV light, high and low temperature, and humid and salt mist environments. Finally, chemical-assembly engineering had been demonstrated to be applicable in fabrication of superhydrophobic coating on various substrates containing hydroxyl groups and various nanoparticles could be applied to replace SNPs.

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坚固的超疏水ORMOSIL混合涂层通过化学组装工程用于木材保护

超疏水涂层机械稳定性差，限制了其实际应用。在这项工作中，通过点击反应诱导聚甲基硅氧烷的化学组装工程，在木材表面制造了坚固的超疏水有机改性硅酸盐（ORMOSIL）杂化涂层。超疏水 ORMOSIL 涂层是由聚（甲基氢）硅氧烷（PMHS）、四乙烯基四甲基环四硅氧烷（V4）和二氧化硅纳米颗粒（SNPs）杂化而成。PMHS 与 SNPs 之间的点击反应生成了表面能极低的化学键合粗糙表面，而 PMHS 与 V4 之间的点击反应则使相邻的 SNPs 牢固粘合，从而使 ORMOSIL 混合涂层具有良好的机械稳定性。化学组装工程赋予了 ORMOSIL 涂层超疏水性、自洁性和良好的坚固性，ORMOSIL 独特的物理特性还赋予了超疏水性涂层优异的耐紫外线、耐高低温、耐潮湿和耐盐雾环境的性能。最后，化学组装工程已被证明适用于在各种含有羟基的基底上制造超疏水涂层，并可应用各种纳米粒子来替代 SNP。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.