Deacidification of Paper in Supercritical Carbon Dioxide (CO2SCF) Solvent System with Magnesium Acetate and Calcium Hydroxide

Yan Juan Wang; Wei Tan; Chun Ying Liu; Yan Xiong Fang

doi:10.4028/www.scientific.net/AMR.347-353.504

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 347-353Deacidification of Paper in Supercritical Carbon...

Deacidification of Paper in Supercritical Carbon Dioxide (CO₂SCF) Solvent System with Magnesium Acetate and Calcium Hydroxide

Abstract:

Alkali agents such as magnesium acetate and calcium hydroxide were used for deacidification of aged acidic papers by supercritical carbon dioxide and immersion treatment. In supercritical fluids, the alkali agent can be better combined with the cellulose fibers, and causing similar pH values as immersion; but the mechanical properties of paper will be a biggish increase. According to artificial aging tests, we find the CO2SCF treatment shows better than the immersion one, which would be related to the high level of alkali reserves.

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Periodical:

Advanced Materials Research (Volumes 347-353)

Pages:

504-507

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.347-353.504

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Online since:

October 2011

Authors:

Yan Juan Wang, Wei Tan, Chun Ying Liu, Yan Xiong Fang

Keywords:

Alkali Agents, Alkali Reserves, Deacidification, Mechanical Property, Paper, Supercritical Carbon Dioxide

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