纤维素科学与技术2024，Vol.32Issue(2)：23-27,5.DOI:10.16561/j.cnki.xws.2024.03.03
单宁酸/氧化锌/聚乙烯醇复合膜的制备及其性能研究
Preparation and Properties of Tannic Acid/Zinc Oxide/Polyvinyl Alcohol Composite Films
摘要
Abstract
Using polyvinyl alcohol(PVA)as the base material,tannic acid(TA)and zinc oxide nanoparticles(ZnO NPs)were introduced and dissolved in DMSO mixed aqueous solution.Then,TA/ZnO/PVA composite films were prepared by freeze-thaw.The morphology,mechanical properties,hydrophilicity,and UV protection properties of TA/ZnO/PVA composite films were analyzed using scanning electron microscopy,universal tensile testing machine,contact angle meter,and UV spectrophotometer.The results showed that TA/ZnO/PVA composite membrane had relative smooth surface,The maximum tensile stress is 1.41 MPa,with a maximum elongation at break of 670%,and a maximum contact angle of 29.9 degrees.The hydroxyl groups in the composite membrane enhance the mechanical properties and hydrophilicity of the composite material through intermolecular interactions such as hydrogen bonding.When the ratio of DMSO to water was 3 to 7,the UV protection performance of the composite film was the best,with almost zero UV transmittance.The addition of TA and ZnO NPs improved the UV protection performance of the material.The TA/ZnO/PVA composite membrane exhibits broad application prospects in the preparation of UV-resistant products and medical dressings due to its excellent mechanical properties,hydrophilicity,and UV protection performance.关键词
单宁酸/聚乙烯醇/氧化锌纳米粒子/紫外防护性能/复合膜Key words
tannic acid/polyvinyl alcohol/zinc oxide nanoparticles/UV protection performance/composite film分类
通用工业技术引用本文复制引用
宋文利,曹苍久,吴芳蕊,顾周延..单宁酸/氧化锌/聚乙烯醇复合膜的制备及其性能研究[J].纤维素科学与技术,2024,32(2):23-27,5.基金项目
江苏省生物传感材料与技术重点实验室开放基金(JKLB2022010) （JKLB2022010）
金陵科技学院博士启动基金(Jit-b-202027). （Jit-b-202027）
