Université Bretagne Sud, EA 3884, LBCM, IUEM, F-56100 Lorient, France.
Int J Mol Sci. 2019 Jan 16;20(2):361. doi: 10.3390/ijms20020361.
The evolution of regulations concerning biocidal products aims to increase protection of the environment (e.g., EU Regulation No 528/2012) and requires the development of new non-toxic anti-fouling (AF) systems. The development of these formulations implies the use of ingredients (polymers, active substances, additives) that are devoid of toxicity towards marine environments. In this context, the use of erodable antifouling paints based on biodegradable polymer and authorized biocides responds to this problem. However, the efficiency of paints could be improved by the use of specific additives. For this purpose, three additives acting as surface modifiers were studied (Tween 80, Span 85 and PEG-silane). Their effects on parameters involved in antifouling efficiency as hydrophobicity, hydration and copper release were studied. Results showed that the addition of 3% of additives modulated hydrophobicity and hydration without an increase of copper release and significantly reduced microfouling development. Efficient paints based on biodegradable polymer and with no organic biocide could be obtained by mixing copper thiocyanate and additives.
生物杀灭剂产品法规的演变旨在加强对环境的保护（例如欧盟法规 528/2012），并要求开发新的无毒防污（AF）系统。这些制剂的开发意味着使用对海洋环境无毒的成分（聚合物、活性物质、添加剂）。在这种情况下，使用基于可生物降解聚合物和授权生物杀灭剂的可生物降解防污涂料来解决这个问题。然而，通过使用特定的添加剂可以提高涂料的效率。为此，研究了三种作为表面改性剂的添加剂（吐温 80、司盘 85 和 PEG-硅烷）。研究了它们对防污效率相关参数（疏水性、水合作用和铜释放）的影响。结果表明，添加 3%的添加剂可以调节疏水性和水合作用，而不会增加铜的释放，并显著减少微生污的发展。通过混合硫氰酸铜和添加剂，可以获得基于可生物降解聚合物且不含有机生物杀灭剂的高效涂料。
