| Performance Assessment of Nanocellulose Hydroxypropyl Methyl Cellulose Composite on Role of Nano-CaCO3 for the Preservation of Paper Documents |
| Received:March 08, 2022 Click here to download the full text |
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| Author Name | Affiliation | | Ma Xiaochun | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China
Lingnan Literature Protection Research Center, Guangzhou, Guangdong Province, 510640, China | | Halim Altaf | National Research Center of Egypt, Giza, 12622, Egypt | | Li Xiaohong | Guangzhou Paper Co., Ltd., Guangzhou, Guangdong Province, 510280, China | | Fan Huiming | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China
Lingnan Literature Protection Research Center, Guangzhou, Guangdong Province, 510640, China | | Fu Shiyu | State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China
Lingnan Literature Protection Research Center, Guangzhou, Guangdong Province, 510640, China |
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| Abstract:Deacidification and self-cleaning are important for the preservation of paper documents. In this study, nano-CaCO3 was used as a deacidification agent and stabilized by nanocellulose (CNC) and hydroxypropyl methylcellulose (HPMC) to form a uniform dispersion. Followed by polydimethylsiloxane (PDMS) treatment and chemical vapor deposition (CVD) of methyltrimethoxysilane (MTMS), a hydrophobic coating was constructed for self-cleaning purposes. The pH value of the treated paper was approximately 8.20, and the static contact angle was as high as 152.29°. Compared to the untreated paper, the tensile strength of the treated paper increased by 12.6%. This treatment method endows the paper with a good deacidification effect and self-cleaning property, which are beneficial for its long-term preservation. |
| keywords:paper documents nanocellulose self-cleaning nano-CaCO3 superhydrophobicity deacidification |
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