Citation: Shu-juan Zhang, Xiao-gang Zhang, Wen-ting Shang. Chemical Investigation of Potassium Methyl Siliconate as Deacidification and Strengthening Agent for Preservation of Aged Papers[J]. Chinese Journal of Polymer Science, ;2015, 33(12): 1672-1682. doi: 10.1007/s10118-015-1713-0 shu

Chemical Investigation of Potassium Methyl Siliconate as Deacidification and Strengthening Agent for Preservation of Aged Papers

1.
Department of Chemistry, Renmin University of China, Beijing 100872, China

Corresponding author: Xiao-gang Zhang,
Received Date: 12 May 2015
Revised Date: 17 May 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China(No.20876169).

Potassium methyl siliconate(PMS) was investigated as a simple physicochemical modification in aged paper using silane coupling technique. The PMS-based solution was shown to favor penetration in the cellulose fibers on the paper with suitable uptakes being achieved at low concentrations. The studies of the physicochemical properties of the treated paper(mechanical strength and alkalinity) demonstrated that, besides the required deacidification feature and high level of alkali reserves, the immersion treatment by PMS allowed the enhancement of the mechanical intensities of paper arising from the interaction between Si-OH generated in hydrolysis of PMS and C-OH of cellulose on the paper. Adding ethanol into PMS solution could significantly improve mechanical properties of the aged paper treated by the formula apart from modifying the flatness of the paper. Optimized treatment process was achieved by altering the ratio of ethanol to water in PMS-based solutions. Contact angle measurements indicated the occurrence of hydrophobic character of the papers in immersion treatment with PMS-based solutions. The easy availability of the materials and simplicity of the method rendered it convenient for treatment for aged paper documents.
- Potassium methyl siliconate,
- Paper,
- Deacidification,
- Reinforcement,
- Ageing
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