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Cultural heritage protection via hybrid nanocomposite coating
Plastics, Rubber and Composites ( IF 2.1 ) Pub Date : 2020-06-25 , DOI: 10.1080/14658011.2020.1784589
Nasim Azadi 1, 2 , Hamidreza Parsimehr 2 , Amir Ershad-Langroudi 2
Affiliation  

ABSTRACT Historical constructions are exposed to weathering conditions and atmospheric pollution for many years which demolish the historical material as well as dramatically influence their visual aspects. Nowadays, the development of conservative coatings with weather-resistant, self-cleaning, and hydrophobic properties is a promising challenge for carbonate stones. In this study, a simple synthesis route is developed to obtain organic–inorganic hybrid nanocomposites. The main components of the acrylate coatings are methyl methacrylate, 3-(trimethoxysilyl)propyl methacrylate (TMSM). Tetraethyl orthosilicate (TEOS) is added to the coating to improve the thermal resistance of the coating. Perfluorooctyl-trichlorosilane (FOTCS) is added to the coating to improve the weathering resistance and hydrophobic behaviour of the coating. Also, titanium dioxide (TiO2) is added to improve the thermal resistance and photocatalytic feature of the coating. The results confirmed significant enhancement in contact angle and weathering resistance that originates from adding an organofluorine component in the structure of the coating. A hybrid coating includes acrylate monomers as the binder and chemical substances include an organosilane (TEOS), fluorinated silane (FOTCS) and titania nanoparticles (TiO2) has appropriate properties like thermal resistance, mechanical resistance, weathering resistance, hydrophobicity, and self-cleaning that can be used as a protective coating for the precious stone-made cultural heritages.

中文翻译:

通过混合纳米复合涂层保护文化遗产

摘要 历史建筑多年来暴露在风化条件和大气污染中,破坏了历史材料并极大地影响了它们的视觉方面。如今,开发具有耐候性、自洁性和疏水性的保守涂层是碳酸盐宝石的一个有希望的挑战。在这项研究中,开发了一种简单的合成路线来获得有机-无机杂化纳米复合材料。丙烯酸酯涂料的主要成分是甲基丙烯酸甲酯、甲基丙烯酸3-(三甲氧基甲硅烷基)丙酯(TMSM)。将原硅酸四乙酯 (TEOS) 添加到涂层中以提高涂层的耐热性。将全氟辛基三氯硅烷 (FOTCS) 添加到涂层中以提高涂层的耐候性和疏水性。还,添加二氧化钛 (TiO2) 以提高涂层的耐热性和光催化特性。结果证实,由于在涂层结构中添加有机氟组分,接触角和耐候性显着提高。混合涂层包括丙烯酸酯单体作为粘合剂,化学物质包括有机硅烷 (TEOS)、氟化硅烷 (FOTCS) 和二氧化钛纳米粒子 (TiO2) 具有适当的性能,如耐热性、机械阻力、耐候性、疏水性和自清洁性可作为宝石制成的文化遗产的保护涂层。结果证实,由于在涂层结构中添加有机氟组分,接触角和耐候性显着提高。混合涂层包括丙烯酸酯单体作为粘合剂,化学物质包括有机硅烷 (TEOS)、氟化硅烷 (FOTCS) 和二氧化钛纳米粒子 (TiO2) 具有适当的性能,如耐热性、机械阻力、耐候性、疏水性和自清洁性可作为宝石制成的文化遗产的保护涂层。结果证实,由于在涂层结构中添加有机氟组分,接触角和耐候性显着提高。混合涂层包括丙烯酸酯单体作为粘合剂,化学物质包括有机硅烷 (TEOS)、氟化硅烷 (FOTCS) 和二氧化钛纳米粒子 (TiO2) 具有适当的性能,如耐热性、机械阻力、耐候性、疏水性和自清洁性可作为宝石制成的文化遗产的保护涂层。
更新日期:2020-06-25
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