首页> 外文期刊>Journal of Applied Polymer Science >Ultraviolet-protective thin film based on PVA-melanin/rod-coated silver nanowires and its application as a transparent capacitor
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Ultraviolet-protective thin film based on PVA-melanin/rod-coated silver nanowires and its application as a transparent capacitor

机译:基于PVA-黑色素/棒涂层银纳米线的紫外线保护薄膜及其作为透明电容的应用

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摘要

Melanin is a biopigment in many organisms with interesting intrinsic properties suitable for emerging and sustainable technologies. In this work, we report the fabrication of transparent ultraviolet (UV)-protective thin films based on synthetic melanin in poly(vinyl alcohol) (PVA) matrixes. Melanin was synthesized through the auto-oxidation of l-3,4-dihydroxyphenylalanine (l-DOPA) under oxygen pressure, resulting in excellent solubility in water. A thin film with a composition of 3 wt % melanin (synthesized at 6 atm oxygen pressure) and silver nanowires (AgNWs) deposited on the surface has good transparency in visible light and 100% UV irradiation photoprotection. Encapsulated PVA-melanin/AgNW films dipped in water for 7 days retained 98% of their UV irradiation photoprotection. Moreover, using a transparent conductive oxide substrate, this UV-protective system can be simultaneously used as a transparent capacitor. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47805.
机译:黑色素是许多生物体中的生物化,其具有适合新兴和可持续技术的有趣内在性质的生物体。 在这项工作中,我们报告了基于聚(乙烯醇)(PVA)基质中的合成黑色素的透明紫外(UV)-Protective薄膜的制备。 通过在氧气压力下通过L-3,4-二羟基苯基丙氨酸(L-DOPA)的自氧化来合成黑色素,导致水中优异的溶解度。 沉积在表面上的3wt%黑色素(合成的6型ATM氧气压力)和银纳米线(AgNWS)的薄膜具有良好的可见光和100%UV辐射光保护的透明度。 将浸入水中的包封的PVA-黑色素/ agnw薄膜7天保留了98%的UV辐射光照学。 此外,使用透明导电氧化物基板,该UV保护系统可以同时用作透明电容器。 (c)2019 Wiley期刊,Inc.J.Phill。 聚合物。 SCI。 2019,136,47805。

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