نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری مرمت اشیاء فرهنگی تاریخی، دانشگاه هنر، تهران، ایران
2 عضو هیئت علمی گروه آموزشی پژوهش هنر، دانشگاه هنر، تهران، ایران
3 عضو هیئت علمی پژوهشگاه شیمی و مهندسی شیمی، تهران، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Purpose: Historical papers, as the most important and original works left over from past periods, have a special importance in historical studies and research. New technologies, especially nano in the field of cultural heritage, are highly sensitive due to the valuable and unique nature of historical works, and raise concerns and questions such as the direct and side effects of these methods on the works. The main purpose of this research is to investigate the preservation Authenticity of materials and materials, color, form and shape in deacidification interventions with nano calcium hydroxide in isopropanol, compared to deacidification with calcium hydroxide in water and calcium hydroxide in isopropanol.
Method and Research Design: This research is applied in terms of its results. information was collected in the library and field, and it was done in a laboratory. First, samples of Whatman paper and acidic historical paper were selected. Three deacidified solutions of calcium hydroxide in water, nanocalcium hydroxide in isopropanol, and calcium hydroxide in isopropanol with a concentration of 1000 ppm (1.0%) were prepared and the samples were deacidified.
Findings and conclusions: The results of the experiments show that preserving the authenticity of historical papers by deacidification with nano calcium hydroxide solution in isopropanol is more effective and efficient than calcium hydroxide solution in water and calcium hydroxide solution in isopropanol.
It is worth noting that calcium hydroxide solution is one of the most widely used deacidifiers in historical papers, which until now has three forms: calcium hydroxide in water (calcium hydroxide in water solution), calcium hydroxide in isopropanol (calcium hydroxide in alcohol solvent) and calcium hydroxide in isopropanol (calcium hydroxide in alcoholic solvent) has not been investigated.
کلیدواژه‌ها [English]
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