This study aimed to prepare superhydrophobic coatings that could be used for practical applications. Nanocomposites of polyacrylate containing silica nanoparticles were prepared by dispersing silica sol in a polyacrylate solution. Superhydrophobicity was attainable for nanocomposite coatings with a filler percentage of only 15 wt%. Reducing the loading of silica nanoparticles not only minimized the costs but also simplified the preparation. The superhydrophobic coatings with water contact angle as high as 155.4° and contact angle hysteresis of 5.6° exhibited good self-cleaning property. The superhydrophobic nanocomposite coatings also displayed good mechanical properties and excellent thermal stabilities that favor indoor and outdoor applications. The superhydrophobic nanocomposite coatings can be used on various substrate surfaces, including glass plates, polymethyl methacrylate plates, polycarbonate plates, and aluminum sheets. Given their large-scale and low-cost fabrication, superhydrophobic coatings show great promise in practical applications in a broad range of fields.

这项研究旨在制备可用于实际应用的超疏水涂料。通过将二氧化硅溶胶分散在聚丙烯酸酯溶液中来制备含有二氧化硅纳米颗粒的聚丙烯酸酯的纳米复合材料。对于仅15重量％的填料百分比的纳米复合涂料而言，可获得超疏水性。减少二氧化硅纳米粒子的负载量不仅使成本最小化，而且简化了制备过程。水接触角高达155.4°，接触角滞后为5.6°的超疏水涂层表现出良好的自清洁性能。该超疏水性纳米复合涂料还显示出良好的机械性能和出色的热稳定性，有利于室内和室外应用。超疏水性纳米复合涂料可用于各种基材表面，包括玻璃板，聚甲基丙烯酸甲酯板，聚碳酸酯板和铝板。考虑到它们的大规模和低成本制造，超疏水涂层在广泛领域的实际应用中显示出巨大的希望。