A new and highly efficient conservation treatment for deacidification and strengthening of aging paper by in-situ quaternization

Bei He; Qixuan Lin; Minmin Chang; Chuanfu Liu; Huiming Fan; Junli Ren

doi:10.1016/j.carbpol.2019.01.034

A new and highly efficient conservation treatment for deacidification and strengthening of aging paper by in-situ quaternization

Carbohydr Polym. 2019 Apr 1:209:250-257. doi: 10.1016/j.carbpol.2019.01.034. Epub 2019 Jan 11.

Authors

Bei He¹, Qixuan Lin¹, Minmin Chang¹, Chuanfu Liu¹, Huiming Fan¹, Junli Ren²

Affiliations

¹ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China.
² State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China. Electronic address: renjunli@scut.edu.cn.

PMID: 30732806
DOI: 10.1016/j.carbpol.2019.01.034

Abstract

Ancient papers, facing the threat of acidification, aging and microbial corrosion, need to be repaired due to their significance of history, art and culture research. In this work, a new and highly efficient approach was proposed to deacidify and strengthen aging paper by in-situ quaternization for the conservation, in which MgO nanoparticles dispersed in hexamethyldisiloxane was coated on the paper surface and the aqueous alkaline solution and the 2, 3-epoxypropyl trimethyl ammonium chloride/isopropyl alcohol/water mixture were sprayed in a closed reactor. Results showed that properties of ageing papers were improved after MSCE-8/2 treatment. The pH value was in the range of 7.5-9.0 and the maximum amount of alkali storage was 220 mmol/Kg. The tensile strength and folding endurance were increased by 28.05% and 80%, respectively. The fluctuation range of brightness and chromatic aberration was 0.14 and 1.27. Moreover, treated paper also had the great anti-bacteria and anti-aging effects.

Keywords: Anti-aging performance; Anti-bacteria activity; Conservation of aging books; Deacidification; In-situ quaternization; Reinforcement.