The demand for multifunctional cotton fabrics possessing fire retardancy and hydrophobic self-cleaning property is soaring in recent years. In this work, non-halogen functional coatings by water-soluble phenylphosphinyl and amine-containing silanol (WPAS) were prepared through sol-gel method, in which functional cotton fabrics embraced with flame retardant (FR) and hydrophobic properties, simultaneously. The prepared WPAS coated functional fabrics reached as high as 30.4% for LOI value, and extinguished immediately after removing the ignitor in vertical fire test. Low-energy •PO free radicals released by WPAS which was detected by TG-MS and TG-FTIR, captured high energy radicals such as •H or •OH radicals in the gas-phase. The char residue study from SEM, FTIR, Raman and XPS results found that P/Si/N thermostable ceramic char layer and aromatic carbonaceous structures formed which could provide a good barrier effect, effectively hindering diffusion of oxygen and transferring of heat into the flame zone. Additionally, water contact angle of functional cotton increased to 145° compared with cotton. As a result, it displayed hydrophobic self-cleaning property towards a series of common liquids in daily life. This convenient, eco-friendly one-pot approach is promising, and feasible for large-scale production of functional cotton fabrics with both excellent FR and hydrophobic self-cleaning properties to end-use industrial applications.

近年来，对具有阻燃性和疏水性自洁性的多功能棉织物的需求激增。在这项工作中，通过溶胶-凝胶法制备了水溶性苯基膦基和含胺硅烷醇 (WPAS) 的无卤功能涂层，其中功能性棉织物同时具有阻燃 (FR) 和疏水性能。制备的 WPAS 涂层功能织物的 LOI 值高达 30.4%，并在垂直燃烧试验中去除点火器后立即熄灭。TG-MS和TG-FTIR检测WPAS释放的低能•PO自由基，在气相中捕获高能自由基，如•H或•OH自由基。来自 SEM、FTIR、拉曼和 XPS 结果发现，形成的 P/Si/N 热稳定陶瓷炭层和芳香碳质结构可以提供良好的阻隔效果，有效阻止氧气扩散和热量传递到火焰区。此外，与棉相比，功能棉的水接触角增加到145°。因此，它对日常生活中的一系列常见液体表现出疏水自清洁性能。这种方便、环保的一锅法是有前景的，并且对于大规模生产具有优异阻燃性和疏水性自清洁性能的功能性棉织物到终端工业应用是可行的。与棉相比，功能棉的水接触角增加到145°。因此，它对日常生活中的一系列常见液体表现出疏水自清洁性能。这种方便、环保的一锅法是有前景的，并且对于大规模生产具有优异阻燃性和疏水性自清洁性能的功能性棉织物到终端工业应用是可行的。与棉相比，功能棉的水接触角增加到145°。因此，它对日常生活中的一系列常见液体表现出疏水自清洁性能。这种方便、环保的一锅法是有前景的，并且对于大规模生产具有优异阻燃性和疏水性自清洁性能的功能性棉织物到终端工业应用是可行的。