含丙烯酸甲硅烷酯共聚物基自抛光防污涂料的研制

目的制备高性能的含丙烯酸甲硅烷酯共聚物基防污涂料。方法合成了丙烯酸甲硅烷酯共聚物,制备了以功能性丙烯酸甲硅烷酯共聚物为基料,以氧化亚铜为主防污剂的自抛光防污涂料。通过红外光谱(FTIR)、凝胶渗透色谱(GPC)和差示扫描量热仪(DSC)对聚合物进行分析,并通过室内动态磨蚀率实验、深海挂板实验、耐淡水浸泡实验、物理性机械性能测试和减阻性能测试,分别评价防污涂料的磨蚀率、静态防污性能、耐淡水性能、物理机械性能和减阻性能。结果筛选出的优异配方防污涂料的磨蚀率为5μm/month,具有26个月的防污性能、2个月的耐淡水浸泡性能及优异的物理机械性能,且降阻率可达到4%。结论制备的丙烯酸甲硅烷酯共聚物基自抛光防污涂料,具有良好的防污性能、物理机械性能、耐淡水浸泡性能,且能够有效地降低船舶航行阻力,是一种高性能的自抛光防污涂料。

Development of Self-polishing Antifouling Paints Based on Silicone Acrylate Copolymer

The work aims to prepare high performance self-polishing (SP) antifouling paints based on silicone acrylate copolymer. A silicone acrylate copolymer was synthesized. With functional silicone acrylate copolymer as matrix and cuprous oxide as major antifouling agent, self-polishing antifouling paints were prepared. The polymer was analyzed with Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC) and differential scanning calorimetry (DSC). Abra-sion rate, static antifouling property, freshwater resistance, physical and mechanical properties, and drag-reducing property of the antifouling paints was analyzed by performing laboratory dynamic abrasion experiment, deep-sea hanging panel experiment, freshwater immersion experiment, physical and mechanical properties test and drag-reducing property test, respectively. For the selected antifouling paint made in excellent formula, the polishing rate was 5 μm/month, antifouling property continued for 26 months, freshwater immersion resistance continued for 2 months, physical and mechanical properties were excellent, and resistance-reducing ratio was up to 4%. The as-deposited self-polishing (SP) antifouling paints based on silicone acrylate copolymer have excellent antifouling property, physical and mechanical properties, freshwater immersion resistance and remarkable drag-reducing property, hence the paints are a kind of high performance self-polishing antifouling paint.