Two component silicone modified epoxy foul release coatings: Effect of modulus, surface energy and surface restructuring on pseudobarnacle and macrofouling behavior
Two component silicone modified epoxy foul release coatings: Effect of modulus, surface energy and surface restructuring on pseudobarnacle and macrofouling behavior
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DOI：
10.1016/j.apsusc.2009.10.084
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发表时间：
2010-02
影响因子：
6.7
通讯作者：
S. K. Rath;J. Chavan;S. Sasane;Jagannath;M. Patri;A. Samui;B. C. Chakraborty
中科院分区：
文献类型：
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作者：
S. K. Rath;J. Chavan;S. Sasane;Jagannath;M. Patri;A. Samui;B. C. Chakraborty
研制了双组分有机硅改性环氧树脂低表面能无毒防污涂料。使用具有15和30%硅氧烷含量的硅氧烷改性环氧树脂作为组分A，并且使用聚醚二胺（Jeffamine-500）作为组分B。通过浇铸化学计量比的组分A和B的混合物来制备自支撑膜。采用角分辨X射线光电子能谱（XPS）、原子力显微镜（AFM）和接触角测量仪分别研究了涂层的表面组成、表面形貌和润湿性能。通过拉伸测量以及动态力学分析来评估固化膜的机械性能。将由铝螺柱制成的假藤壶附着到涂覆的板上，并通过假藤壶测试仪进行粘附性测试。将涂覆的板在孟买港暴露90天以进行污垢研究。通过接触角测角法测量前进和后退接触角的变化，对涂层在海水中浸泡后的表面重构进行了研究。详细讨论了涂层的表面能、模量和表面结构对大型污损生物和拟藤壶附着性能的影响。
Two component silicone modified epoxy resin based low surface energy and non-toxic foul release coatings were developed. Silicone modified epoxy resin with 15 and 30% silicone content was used as component A and a polyether diamine (Jeffamine-500) was used as the component B. Free standing films were prepared by casting a mixture of components A and B in stoichiometric proportions. The surface composition, surface topography and wetting properties of the coatings were studied by angle resolved X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and contact angle goniometry respectively. The mechanical properties of the cured films were evaluated by tensile measurements as well as dynamic mechanical analysis. Pseudobarnacles made of aluminium studs were attached to the coated panels and adhesion tests were carried out by a pseudobarnacle tester. Coated panels were exposed in Mumbai harbor for fouling studies for a period of 90 days. Surface restructuring studies of the coatings upon immersion in seawater were carried out by measuring the changes in advancing and receding contact angles by contact angle goniometry. The effect of surface energy, modulus and surface restructuring of the coatings on the macrofouling and pseudobarnacle adhesion properties has been discussed in detail.