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首页> 外文期刊>Materials Science and Engineering >Silsesquioxane-based hybrid nanocomposites with methacrylate units containing titania and/or silver nanoparticles as antibacterial/antifungal coatings for monumental stones
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Silsesquioxane-based hybrid nanocomposites with methacrylate units containing titania and/or silver nanoparticles as antibacterial/antifungal coatings for monumental stones

机译：基于倍半硅氧烷的杂化纳米复合材料，含有甲基丙烯酸酯单元和二氧化钛和/或银纳米颗粒，可作为纪念性石头的抗菌/抗真菌涂层

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摘要

The present paper reports on the evaluation of two silsesquioxane-based hybrid nanocomposites with methacrylate units containing titania and/or silver nanoparticles aimed as antibacterial coatings for monumental stones. Sol-gel reaction of titanium isopropoxide and/or 3-(trimethoxysily!)propyl methacrylate, in the presence of silver nitrate and a primary amine surfactant, yielded new types of hybrid nanocomposites with high antibacterial/antifungal efficacy. Different polymer behaviours regarding a frequently used monumental stone originating from Romania were evidenced through Fourier-transform infrared (FTIR) spectroscopy and powder X-ray diffraction (PXRD) technique. Conclusions regarding the stones acid-resistant character and lower influence of salt weathering on its durability, as well as a better protective coating containing titania units were revealed.
机译：本文报道了两种基于倍半硅氧烷的杂化纳米复合材料的评估，该杂化纳米复合材料含有甲基丙烯酸酯单元，其中包含二氧化钛和/或银纳米颗粒，用作纪念性石头的抗菌涂层。在硝酸银和伯胺表面活性剂的存在下，异丙醇钛和/或甲基丙烯酸3-（三甲氧基甲硅烷基）丙酯的溶胶-凝胶反应产生了具有高抗菌/抗真菌功效的新型杂化纳米复合材料。通过傅立叶变换红外（FTIR）光谱和粉末X射线衍射（PXRD）技术证明了来自罗马尼亚的常用纪念石具有不同的聚合物行为。得出有关结石的耐酸特性和盐分耐候性对其耐久性的较低影响以及含二氧化钛单元的更好防护涂层的结论。

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  • 来源
    《Materials Science and Engineering》 |2013年第19期|1339-1346|共8页
  • 作者

    Magdalena Aflori; Bogdana Simionescu; Irina-Elena Bordianu; Liviu Sacarescu; Cristian-Dragos Varganici; Florica Doroftei; Alina Nicolescu; Mihaela Olaru;

  • 作者单位

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania,'Costin D. Nenitescu' Centre of Organic Chemistry, 202B Splaiul Independentei, 7114 Bucharest, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

    'Petru Poni' Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iast, Romania;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Antibacterial activity; Protective coating; Monumental stone; Silsesquioxane;

    机译：抗菌活性;防护涂层;巨大的石头;倍半硅氧烷;

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