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Compatibility of photocatalytic TiO_2-based finishing for renders in architectural restoration: A preliminary study

机译：基于光催化TiO_2的整理剂在建筑修复中的相容性：初步研究

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摘要

Self-cleaning finishing treatments based on the use of TiO_2 nanoparticles have been recently proposed for the protection of materials in cultural heritage, with the aim of increasing the durability of these materials in polluted environments. The results on stone seem encouraging, but the experimental tests on different porous materials, such as bricks and renders used in historical buildings, are still extremely limited. In the present paper, the application of water dispersion of titania nanoparticles to the repair renders of the former Del Corso hotel ((ⅩⅧ) cent, Bologna, Italy) was evaluated. The building and its environment were first analysed for assessing the appropriateness of such finishing, then samples of painted renders identical to those provided for in the intervention work were manufactured and treated with the dispersion, both by brushing on the dry paint and by brushing on the wet paint (the latter procedure in order to enhance the particles retention by exploiting the mechanism of fresco paintings). The outcome of the different treatments was investigated mainly to evaluate its compatibility with the substrate and its durability, which could be of interest also for the application of photocatalytic finishing to renders in new constructions.
机译：最近提出了基于TiO_2纳米粒子的自清洁整理处理，以保护文化遗产中的材料，目的是提高这些材料在污染环境中的耐久性。在石头上的结果似乎令人鼓舞，但是对不同多孔材料（例如历史建筑中使用的砖和粉刷）的实验测试仍然极为有限。在本文中，评估了二氧化钛纳米粒子的水分散体在修复前Del Corso酒店（意大利博洛尼亚（％））的效果。首先对建筑物及其环境进行分析，以评估这种装修的适当性，然后制造与干预工作中提供的效果相同的油漆效果图样品，并用分散液处理，既可以在干漆上刷涂，也可以在漆膜上刷涂。湿涂料（后一种方法是通过利用壁画的机理来提高颗粒的保留能力）。主要研究了不同处理方法的结果，以评估其与基材的相容性及其耐久性，这对于将光催化整理剂应用于新结构的抹灰中也可能是有意义的。

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  • 来源
    《Building and Environment》 |2014年第10期|125-135|共11页
  • 作者

    Elisa Franzoni; Alberto Fregni; Rossana Gabrielli; Gabriela Graziani; Enrico Sassoni;

  • 作者单位

    Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Universita di Bologna, Via Terracini 28, 40131 Bologna, Italy;

    Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Universita di Bologna, Via Terracini 28, 40131 Bologna, Italy;

    Leonardo S.r.L, Via S. Rocco 16, 40122 Bologna, Italy;

    Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Universita di Bologna, Via Terracini 28, 40131 Bologna, Italy;

    Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali (DICAM), Universita di Bologna, Via Terracini 28, 40131 Bologna, Italy;

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

    Historical buildings; Pollution; Nanoparticle; Self-cleaning; Compatibility; Rain;

    机译：历史建筑;污染;纳米粒子自清洁;兼容性;雨;

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