ACIDIFICATION OF HISTORICAL WOOD WORKS BY USING CALCIUM HYDROXIDE NANOPARTICLES SYNTHESIZED VIA CHEMICAL PROCESSING

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VAEZI M.R.; NAZEMI ASHNI R.; KIANMEHR GH.

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Paper Information

Journal: JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES Year:2014 | Volume:3 | Issue:1 Page(s): 71-79

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Title

ACIDIFICATION OF HISTORICAL WOOD WORKS BY USING CALCIUM HYDROXIDE NANOPARTICLES SYNTHESIZED VIA CHEMICAL PROCESSING

Author(s)

VAEZI M.R. | NAZEMI ASHNI R. | KIANMEHR GH. | Issue Writer Certificate

Keywords

WOODQ2

HISTORICAL WORKQ2

ACIDIFICATIONQ2

CA (OH)2 NANOPARTICLESQ2

DISPERSIONQ2

PENETRATIONQ2

Abstract

Acidification is a common harm to historical WOOD works and the issue of deacidification, in conserving and restoring historical WOOD works, is mentioned using ammonia along with alcoholic solvent (usually methanol), as a deacidifire, is a common approach to deacidification of historical WOOD works. But using this deacidifire also has its own problems. One of the problems of using ammonia solvent in methanol is the superficiality of the deacidification and low PENETRATION in WOOD which causes reacidification of WOOD after a short period. Being poisonous, for both ammonia and methanol, and dangers of using them for the WOOD restorers are other radical problems of using these solvents for deacidification of historical WOOD works. Also, permanent damage of WOOD compositions while conserving and restoring the WOOD works causes changes and problems. Recently, using nano materials in the science of conservation and restoration of HISTORICAL WORKs is being examined. One of the examined cases has been alkalized DISPERSION of nano particles of calcium hydroxide in isopropanol for deacidification of historical WOOD, paper and cloth. The results of the deacidification on these material which have been mentioned is very noticeable. In this research we compared traditional method for deacidification of iranian historical WOOD works (using ammonia in a alkoholic solvent) with a new method have been examined recently in Stokholm Museum for deacidification of acidified WOOD of the historical ship Vasa(using alkalized DISPERSION of nano particles of calcium hydroxide). We examined three types of permanent WOOD; ButtonWOOD, PearsWOOD and WalnutWOOD, and two types of historical WOOD; safavid ButtonWOOD and qajari ButtonWOOD. For feasibility study of using alkalized DISPERSION of nano particles of calcium hydroxide for deacidification of historical WOOD works, we perpended on results of these examinations; pH examinations, weight examinations, SEM images, Atomic Absorption, comparing solvation of samples in deacidifires with examination of changing in their color.

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APA: Copy

VAEZI, M.R., NAZEMI ASHNI, R., & KIANMEHR, GH.. (2014). ACIDIFICATION OF HISTORICAL WOOD WORKS BY USING CALCIUM HYDROXIDE NANOPARTICLES SYNTHESIZED VIA CHEMICAL PROCESSING. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, 3(1), 71-79. SID. https://sid.ir/paper/252336/en

Vancouver: Copy

VAEZI M.R., NAZEMI ASHNI R., KIANMEHR GH.. ACIDIFICATION OF HISTORICAL WOOD WORKS BY USING CALCIUM HYDROXIDE NANOPARTICLES SYNTHESIZED VIA CHEMICAL PROCESSING. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES[Internet]. 2014;3(1):71-79. Available from: https://sid.ir/paper/252336/en

IEEE: Copy

M.R. VAEZI, R. NAZEMI ASHNI, and GH. KIANMEHR, “ACIDIFICATION OF HISTORICAL WOOD WORKS BY USING CALCIUM HYDROXIDE NANOPARTICLES SYNTHESIZED VIA CHEMICAL PROCESSING,” JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, vol. 3, no. 1, pp. 71–79, 2014, [Online]. Available: https://sid.ir/paper/252336/en

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