Abstract: ［Objective］This paper develops a high-performance acrylic polyurethane hull coatingand improves its key properties.［Methods］Firstly，hydroxy acrylic resins were screened for optimalweatherability through accelerated UVB aging tests that simulated outdoor exposure conditions. Then， nano-fillers were introduced and compared with conventional fillers. The volume solids content of thecoatings was tested using a density cup by the immersion method to evaluate their effectiveness inreducing density and achieving high volume solids. The enhancement effect of hexagonal boron nitridenanosheets（BNNS）was evaluated through performance tests including salt spray resistance，abrasion resistance，and seawater immersion.［Results］The formulation was finalized with hydroxy acrylic resin 1# as the primary resin，incorporating nano-fillers to partially replace conventional types. This approachresulted in a 1%-3% loading range that effectively lowered the coating density without a substantialincrease in viscosity，accomplishing the ideal profile of high volume solids，low viscosity，and low VOC. Furthermore，the incorporation of BNNS was found to significantly enhance the coating’s abrasion and corrosion resistance. Specifically，at a loading of 1. 5%，these properties were significantly improved compared to the blank sample.［Conclusion］This study presents a viable solution for developing high-performance，high-volume-solid，low-viscosity，and environmentally friendly hull coatings. 

Key words: hydroxy acrylic resin, artificial accelerated aging resistance, nano-filler, hexagonal boron nitride, high solid and low viscosity

摘要： 【目的】制备一种高性能丙烯酸聚氨酯船壳漆并对关键性能做出提升。【方法】首先，通过耐人工加速老化（ UVB）试验，模拟户外曝晒条件，筛选出耐候性最优的羟基丙烯酸树脂。在此基础上，引入纳米填料与常规填料进行对比，采用密度组件结合排水法的方式测试涂料的体积固含，探究纳米填料对涂料密度及体积固含的影响。通过耐盐雾、耐磨损及海水浸泡等性能测试，评估六方氮化硼纳米片（BNNS）的增强效果。【结果】确定了 1#羟基丙烯酸树脂作为主体树脂，使用纳米填料替换部分常规填料，当纳米填料添加量为 1%~3%时，可在未明显增加涂料黏度的情况下有效降低涂料密度，实现高体积固含、低黏度、低 VOC的理想状态；同时， BNNS的加入可以提升涂层耐磨性、耐腐蚀性，在用量为 1. 5%时，相比空白样品性能大幅提升。【结论】本研究为高性能、高体积固含、低黏度环保型船壳漆开发提供了可行方案。

关键词: 羟基丙烯酸树脂, 耐人工加速老化, 纳米填料, 六方氮化硼, 高固低黏

CLC Number: 

• TQ635. 1