期刊
JOURNAL OF CULTURAL HERITAGE
卷 7, 期 4, 页码 264-272出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.culher.2006.04.004
关键词
paper; nanoparticles; calcium hydroxide (Ca(OH)(2)); deacidification; iron gall ink
The efficiency of a recently described non-aqueous method for paper deacidification using Ca(OH)(2) nanoparticles in isopropanol was evaluated by pH and colorimetric measurements and by the analysis of the degree of polymerization (DP). Samples of plain paper and paper with iron gall ink were tested. The results were compared with non treated samples and samples submitted to the traditional treatment with saturated aqueous Ca(OH)(2) solution. By comparing the two conservation methods, the aqueous one shows higher neutralization reaction kinetics than the non-aqueous one. The iron gall ink samples maintain their coloration closer to the original after the non-aqueous Ca(OH)(2) nanoparticles treatment, in contrary to the aqueous treatment that changes the ink aesthetics considerably. Artificial aging tests revealed a general increase in the aging stability of deacidified paper samples. The Ca(OH)(2) nanoparticles treatment can be an alternative for papers who can not be treated by the classical aqueous treatment, e.g. papers with water soluble components. (c) 2006 Elsevier Masson SAS. All rights reserved.
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