Abstract A series of waterborne polyurethane-polyhedral oligomeric silsesquioxane (WBPU-POSS) dispersions were synthesized. Different POSS contents were used to evaluate the effect of POSS content on silicone enrichment under both nonimmersed and immersed conditions. The impact of silicone enrichment under immersed conditions on antifouling properties was also evaluated. The structure of the WBPU-POSS coating was identified by FT-IR and 29Si-NMR. X-ray photoelectron spectroscopy (XPS) analysis confirmed a silicone-enriched surface with a certain composition of the WBPU-POSS coating under both nonimmersed and immersed conditions. The mechanical properties, hydrophilicity and hydrolytic degradation of the coating all varied with POSS content. The long-term antifouling performance of immersed coatings depends on surface silicone enrichment, which was found to be above 0.0021 mole POSS content in WBPU-POSS coatings.

中文翻译：

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浸渍聚氨酯-POSS 防污涂层的富硅表面

摘要 合成了一系列水性聚氨酯-多面体低聚倍半硅氧烷（WBPU-POSS）分散体。使用不同的 POSS 含量来评估 POSS 含量对非浸泡和浸泡条件下有机硅富集的影响。还评估了浸泡条件下有机硅富集对防污性能的影响。WBPU-POSS涂层的结构通过FT-IR和29Si-NMR鉴定。X 射线光电子能谱 (XPS) 分析证实了在非浸没和浸没条件下具有一定组成的 WBPU-POSS 涂层的富含有机硅的表面。涂层的机械性能、亲水性和水解降解均随 POSS 含量变化。浸渍涂料的长期防污性能取决于表面有机硅的富集，