• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of carbon quantum dots to fabricate ultraviolet-shielding poly(vinylidene fluoride) films
【24h】

Synthesis of carbon quantum dots to fabricate ultraviolet-shielding poly(vinylidene fluoride) films

机译：碳量子点合成制备紫外线屏蔽聚（偏二氟乙烯）膜

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The paper presents a simple and effective approach to fabricating a poly(vinylidene fluoride) (PVDF) film with excellent ultraviolet (UV) shielding performance. Carbon quantum dots (CQDs) with a highly UV absorbing property were made via a hydrothermal reaction and were then added to a poly(vinyl alcohol) (PVA) solution. The PVDF membrane pretreated with an alkaline solution was immersed in the prepared CQD/PVA solution to coat a UV-shielding layer on the film surface. Fourier transform infrared spectroscopy, X-ray photoelectron spectrometry, X-ray diffraction, transmission electron microscopy, and UV-visible spectrophotometry were applied to study the structure, morphology, and optical performance of the CQD particles. The stability and UV-shielding performance of the obtained PVDF-OH@CQDs/PVA composite film were further investigated. The results showed that the CQD particles with diameter of 18 nm could be well dispersed in solution. Additionally, the CQDs had fairly high UV absorbance, and the PVDF-OH@CQDs/PVA composite film could shield the UV light completely. The method described in this paper is a promising one for fabricating UV-shielding composite films. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47555.
机译：本文介绍了制造具有优异紫外（UV）屏蔽性能的聚（偏二氟乙烯）（PVDF）膜的简单有效的方法。通过水热反应制备具有高UV吸收性的碳量子点（CQDS），然后将其加入到聚（乙烯醇）（PVA）溶液中。将用碱性溶液预处理的PVDF膜浸入制备的CQD / PVA溶液中以在膜表面上涂覆UV屏蔽层。傅里叶变换红外光谱法，X射线光电子体光谱法，X射线衍射，透射电子显微镜和UV可见分光光度法研究，研究CQD颗粒的结构，形态和光学性能。进一步研究了所得PVDF-OH @ CQDS / PVA复合膜的稳定性和紫外线屏蔽性能。结果表明，直径为18nm的CQD颗粒可以很好地分散在溶液中。另外，CQD具有相当高的UV吸光度，并且PVDF-OH @ CQDS / PVA复合膜可以完全屏蔽UV光。本文描述的方法是用于制造紫外线屏蔽复合膜的有希望的方法。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47555。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号