有机-无机杂化纳米TiO_2防护涂层在汉代铁质箭头上的应用

Application of Organic-inorganic Hybrid Nano-material for Conservation on Iron Arrows of Han Dynasty

研究了一种可以成功应用于铁质文物保护的复合封护剂。该复合封护剂采用溶胶-凝胶技术,制备了含纳米TiO2的有机-无机杂化纳米薄膜,制成铁质文物的表层封护剂。并结合高效的缓蚀剂作为铁质文物的底层封护剂,在出土的汉代铁质箭头上进行了尝试应用。根据铁质文物的保护要求对这种复合封护剂的主要性能进行了测试,发现这种复合封护剂在紫外屏蔽、耐蚀性及耐污染等方面有显著的改善。这种复合封护剂无色、透明、无毒、无味,有锈无锈表面均可使用,可以作为一种新的环保型封护剂用于铁质文物的保护。

An efficient composite protective agent for iron relics was studied and its main performances were tested according to the requirement for the conservation of iron cultural relics. Nano-materials were dispersed in the pure acrylic emulsion to form nano-composites. Nano-composites were used as top-coat and corrosion inhibitors was used as base coat for the conservation of iron cultural relics. It was found that the composite protective coatings performed well in many aspects, such as ultraviolet shield and resistance to pollution, etc. The composite protective agent was promising for the conservation of iron cultural relics.