耐水型PVA/纸基复合薄膜的制备及其表征  

Preparation and characterization of water resistant PVA/paper-based film

作　　者：赵兴金 王文亮 王旭彪 任肖肖 薛艳怡 杨菲菲 韩思哲 任佳和 陈新春 王阮玉 ZHAO Xing-jin;WANG Wen-liang;WANG Xu-biao;REN Xiao-xiao;XUE Yan-yi;YANG Fei-fei;HAN Si-zhe;REN Jia-he;Chen Xin-chun;Wang Ruan-yu(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报》2023年第1期8-13,共6页Journal of Shaanxi University of Science & Technology

基　　金：中国博士后科学基金面上项目(2018M643561);陕西省大学生创新创业训练计划项目(S202110708121)。

摘　　要：由纸基材料制备的薄膜具有成本低、可生物降解、可折叠等优点,因此在作为电子器件的柔性衬底方面表现出了良好的潜力.但纸基材料普遍存在耐水性能差、力学性能不足的问题,限制了其在光电子器件领域的发展.本文以卫生纸和聚乙烯醇(PVA)作为主要原料,以甘油作为增塑剂,加入丁二酸作为耐水改性剂,通过溶剂浇铸法制备耐水型PVA/纸基复合薄膜.结果表明,当丁二酸的添加量为20%时,PVA/纸基复合薄膜表现出良好的耐水性能.同时,耐水改性后,PVA/纸基复合薄膜在30℃~150℃的热降解质量损失率降低了25%,拉伸强度提高至35 MPa,并在550 nm处表现出高光学透明度(88%)和高雾度(86%).该复合薄膜在有机发光二极管(OLED)、太阳能电池等光电子器件领域具有潜在的应用价值.The film prepared from the paper-based material has the advantages of low cost,biodegradable,foldable.It exhibits good potential as the flexible substrate of the electronic device.However,the paper-based film is generally poorly resistant to water,and its mechanical properties are limited,which limits its development in the field of optoelectronic devices.In this paper,the water-resistant film was prepared by solvent casting with raw materials of tissue paper and polyvinyl alcohol(PVA).Glycerol was added as a plasticizer,and succinic acid was added as a water resistant modifier.The results showed that the PVA/paper-based film exhibited good water resistance with the addition of succinic acid of 20%.the mass loss rate of PVA/paper-based film after modification decreased by 25%from 30℃to 150℃,and the tensile strength increased to 35 MPa.Interestingly,the modified film presented high optical transparency(88%)and high haze(86%)at 550 nm.The composite film shows potential applications in the field of optoelectronic devices such as an organic light emitting diode(OLED)and solar cells.

关 键 词：纸基材料 复合薄膜 耐水 丁二酸 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业] TB383[一般工业技术—材料科学与工程]