纤维素科学与技术2024，Vol.32Issue(3)：13-19,7.DOI:10.16561/j.cnki.xws.2024.03.07
基于纤维素膜的聚乙烯醇基抗溶胀水凝胶柔性传感材料的制备及性能研究
Preparation and Performance Study of Polyvinyl Alcohol-based Anti-swelling Hydrogel Flexible Sensing Material Based on Cellulose Membrane
摘要
Abstract
In recent years,hydrogel-based flexible wearable sensors have received widespread attention.However,swelling of hydrogels in an aquatic environment dramatically limits their application.Herein,an anti-swelling hydrogel with good mechanical properties is successfully fabricated by introducing 4-ethynylbenzaldehyde into the network through acetal reaction with polyvinyl alcohol as the matrix.The hydrogel reduces the driving force of swelling by destroying the hydrogen bond between the PVA chains and the water molecules.The π-π stacking enhances the interaction between the chains to reduce the porosity and resist the penetration of water molecules,so that the swelling rate is maintained at 5%.Meanwhile,the crosslinking density of the network increases,which improves the fusion between the molecular chains and gives the hydrogel higher toughness(the tensile strength=1.4 MPa,elongation at break=528%).Considering the application of biocompatibility and water environment,the hydrogel is combined with a non-toxic cellulose film to assemble a flexible sensor for human motion detection,which expands the potential application of wearable electronic devices.关键词
聚乙烯醇/水凝胶/抗溶胀/纤维素膜/传感材料Key words
polyvinyl alcohol/hydrogel/anti-swelling/cellulose membrane/sensing material分类
化学化工引用本文复制引用
黄有诚,史珺,孔晨光,王杭州,江淑敏,杨立..基于纤维素膜的聚乙烯醇基抗溶胀水凝胶柔性传感材料的制备及性能研究[J].纤维素科学与技术,2024,32(3):13-19,7.基金项目
梅州市科技计划项目-梅州鸿雁计划(2024HY001TD003) （2024HY001TD003）
广东省科技专项资金-韶关科技计划项目(210906134536798). （210906134536798）
