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| Preparation of Nano-SiO2/Waterborne Polyurethane Complex Coating and Its Application in Simulated Paper Relics Protection |
| Received:August 02, 2022 |
| DOI：10.11980/j.issn.0254-508X.2023.01.008 |
| Key Words:nano-SiO2 waterborne polyurethane UV aging resistance strengthening hand-made xuan paper |
| Author Name | Affiliation | Postcode | | XIA Man* | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | LI Haohao | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | ZHANG Liyuan | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | ZHANG Xiumei | College of Textile Science and Engineering （International Institute of Silk）, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 |
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| Abstract:In this study， a complex coating used in paper relics protection was prepared by modified waterborne polyurethane with nano-SiO2 via in-situ polymerization. The surface appearance and mechanical properties of hand-made xuan paper before and after coating were studied， and the application performance of the coating to the simulated paper relics was characterized. The results showed that the nano-SiO2 with photocatalyst function introduced into the waterborne polyurethane was good dispersed with nano particle size. Moreover， the coating absorbed about 80% of the UV in the whole UV band， indicating a certain UV shielding effect. When the nano-SiO2 content was 0.5%， compared with control xuan paper， the tear strength of xuan paper increased 204.9% and the tensile index increased 282.7%， and with a good UV aging resistance. |
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