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首页> 外文期刊>Journal of coatings technology and research >The effect of formulation variables on fouling-release performance of stratified siloxane-polyurethane coatings
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The effect of formulation variables on fouling-release performance of stratified siloxane-polyurethane coatings

机译：配方变量对分层硅氧烷-聚氨酯涂料结垢释放性能的影响

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摘要

The effects of formulation variables, such as type of polyol, solvent type and solvent content, and coating application method, on the surface properties of siloxane-polyurethane fouling-release coatings were explored. Fouling-release coatings allow the easy removal of marine organisms from a ship's hull via the application of a shear force to the surface. Self-stratified siloxane-polyurethane coatings are a new approach to a tough fouling-release coating system. Combinatorial High Throughput Experimentation was employed to formulate and characterize 24 different siloxane-polyurethane coatings applied using drawdown and drop-casting methods. The resulting coatings were tested for surface energy using contact angle measurements. The fouling-release performance of the coatings was tested using a number of diverse marine organisms including bacteria (Halomonas pacifica and Cytophaga lytica), sporelings (young plants) of the green macroalga (Ulva linza), diatom ((microalga) Navicula incerta), and barnacle {Amphibalanus amphi-trite). The performance of the majority of the coatings was found to be better than the silicone standards, Intersleek~® and Silastic~® T2. An increase in solvent content in the formulations increased the surface roughness of the coatings. Coatings made with polycaprolactone polyol appeared to be somewhat rougher compared to coatings made with the acrylic polyol. The adhesion strength of sporelings of Ulva increased with an increase in solvent content and increase in surface roughness. The adhesion strengths of Ulva sporelings, C. lytica, and N. incerta were independent of application method (cast or drawdown) in contrast to H. pacifica adhesion, which was dependent on the application method.
机译：探索了多元醇类型，溶剂类型和溶剂含量以及涂料的涂布方法等配方变量对硅氧烷-聚氨酯防污涂料表面性能的影响。防污涂层可以通过向表面施加剪切力，轻松地将海洋生物从船体上清除。自分层的硅氧烷-聚氨酯涂料是一种坚韧的污垢释放涂料体系的新方法。组合高通量实验被用来配制和表征使用压铸和滴铸法涂覆的24种不同的硅氧烷-聚氨酯涂料。使用接触角测量测试所得涂层的表面能。使用多种多样的海洋生物对涂料的结垢释放性能进行了测试，这些细菌包括细菌（太平洋盐藻和解胞藻），绿色大型藻类（Ulva linza）的孢子（幼植物），硅藻（（microalga）Navicula incerta），和藤壶（Amphibalanus amphi-trite）。发现大多数涂料的性能均优于有机硅标准品Intersleek®和Silastic®T2。制剂中溶剂含量的增加增加了涂层的表面粗糙度。与用丙烯酸多元醇制得的涂料相比，用聚己内酯多元醇制得的涂料显得有些粗糙。 Ulva孢子的粘附强度随溶剂含量的增加和表面粗糙度的增加而增加。乌尔氏菌孢子，溶胞梭状芽胞杆菌和不育猪笼草的附着强度独立于施用方法（浇铸或浸涂），而与H.pacifica粘附性相反，后者取决于施用方法。

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  • 来源
    《Journal of coatings technology and research》 |2012年第3期|p.235-249|共15页
  • 作者

    Rajan B. Bodkhe; Stephanie E. M. Thompson; Carolyn Yehle; Nicholas Cilz; Justin Daniels; Shane J. Stafslien; Maureen E. Callow; James A. Callow; Dean C. Webster;

  • 作者单位

    Department of Coatings and Polymeric Materials, Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

    School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK;

    Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

    Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

    Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

    Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

    School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK;

    School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK;

    Department of Coatings and Polymeric Materials, Center for Nanoscale Science and Engineering, North Dakota State University, Fargo, ND 58108, USA;

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  • 正文语种 eng
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  • 关键词

    marine coatings; fouling; siloxane; polyurethane; Ulva;

    机译：船用涂料;结垢硅氧烷;聚氨酯乌尔瓦;

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