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| Preparation and Properties of Catecholized Nanocellulose Tackifying Hydrogels |
| Received:August 30, 2024 |
| DOI：10.11980/j.issn.0254-508X.2025.01.003 |
| Key Words:nanocellulose hydrogel adhesion sensing |
| Fund Project:中国博士后科学基金74批面上项目（2023M742616）；浙江景兴纸业股份有限公司校企合作项目；齐鲁工业大学制浆造纸科学与技术教育部重点实验室开放基金（KF202010）。 |
| Author Name | Affiliation | Postcode | | SUN Xianhao | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | CHENG Zhengbai | Zhejiang Jingxing Paper Joint Stock Co., Ltd., Pinghu, Zhejiang Province, 314214 | 314214 | | LIU Yingying* | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | MA Shujing | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | WANG Yan | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | YANG Yujie | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | JIN Xingming | Beijing Shieldry Technology Co., Ltd., Beijing, 102600 | 102600 | | LIN Zhaoyun | Key Lab of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology （Shandong Academy of Sciences）, Ji’nan, Shandong Province, 250353 | 250353 | | LIU Hongbin* | Tianjin Key Lab of Pulp and Paper, College of Light Industry Science and Engineering, State Key Lab of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 |
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| Abstract:In this study， biomass-based hydrogel with good tensile and adhesion properties was rapidly synthesized at room temperature via free radical polymerization technology. PCNF was obtained by modifying the nanocellulose using polydopamine at room temperature. The mechanical properties of the hydrogel were improved effectively by the addition of PCNF to the hydrogel system， with breaking strain of 1 250% and breaking stress of 82.0 kPa. At the same time， the reversible redox reaction of catechol groups was used to endow the hydrogel with good adhesion. The adhesion strength on metallic iron was as high as 22.50 kPa. In addition， hydrogel-based strain sensors exhibited good sensitivity （GF=2.768）， wide linear strain range （up to 500%，R2=0.99）， good response time （300 ms）， and good stability. |
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