Preparation of MgO/CaCO3 nanocomposites and their deacidification properties for paper documents
Source abstract
Abstract
Abstract Acidification is an important factor in the damage of paper documents. At present, it is recognized that deacidification is an effective means to solve the problem. In this work, aiming at the problems of the traditional single deacidification agent, such as uncontrollable alkali strength, insufficient alkaline reserve, uneven deacidification effect, and high local alkalinity, MgO/CaCO3 nanocomposites were prepared as a new paper deacidification agent. The composites combined the immediate and efficient deacidification of MgO and the long-term mild deacidification of CaCO3. The morphologies and structures of MgO/CaCO3 nanocomposites were characterized by TEM and XRD. When applied to the deacidification of paper documents, the MgO/CaCO3 nanocomposites showed excellent deacidification performances and high alkaline reserve. The alkali strength of the MgO/CaCO3 nanocomposites can be controlled by adjusting the ratio of MgO to CaCO3 so that the pH value and alkaline reserve of the paper after deacidification are within a reasonable range.
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Research context
OpenAlex topics: Advanced Cellulose Research Studies · Building materials and conservation · Cultural Heritage Materials Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering , 47833 Beijing Institute of Technology , 5 South Zhongguancun Street, Haidian District , Beijing 100081 , China
National Library of China , 33 Zhongguancun Nandajie, Haidian District , Beijing 100081 , China
School of Materials and Environment , 47833 Beijing Institute of Technology , Jinfeng Road No. 6, Xiangzhou District , Zhuhai 519085 , China
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