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| Study on Improving the Durability of Aged Paper Documents by Silicification Modified Bacterial Cellulose/Nano-magnesia Oxide Reinforce Dispersion |
| Received:January 15, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.06.009 |
| Key Words:bacterial cellulose silylation nano-magnesium oxide paper document durability |
| Author Name | Affiliation | Postcode | | MOU Hongyan* | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHANG Boer | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZHANG Hongjie | China National Pulp and Paper Research Institute Co., Ltd., Beijing, 100102
National Engineering Lab for Pulp and Paper, Beijing, 100102 | 100102 | | WU Xiao | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | WU Ting | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:Bacterial cellulose （BC） was used as the reinforcing substrate， chemically modified by 3-aminopropyltriethoxysilane （APTES） and compounded with nano-magnesium oxide （MgO） to produce silanized bacterial cellulose/nano-magnesium oxide （APTES-BC/MgO） reinforce dispersion， which were applied in the study of the durability of reinforced paper. The mechanical properties of APTES-BC/MgO reinforced paper were always higher than those of the BC reinforced paper and the unreinforced paper during the wet-heat aging process. After 30 days of hygrothermal aging test， the transverse tearing index and transverse tensile index of APTES-BC/MgO reinforced paper were still 29.6% and 27.1% higher than those of the unreinforced paper， and the pH value and alkali reserves were 7.56 and 0.25 mol/kg， respectively， with the least whiteness change and colour difference. The aged paper reinforced by APTES-BC/MgO exhibited the excellent durability. |
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