核壳结构二氧化铈/聚乙烯吡咯烷酮（PVP）纳米颗粒掺入聚合物薄膜中的效果及其光学性质。

Effect of Core-Shell Ceria/Poly(vinylpyrrolidone) (PVP) Nanoparticles Incorporated in Polymer Films and Their Optical Properties.

作者信息

Itoh Toshio, Uchida Toshio, Izu Noriya, Matsubara Ichiro, Shin Woosuck

机构信息

National Institute of Advanced Industrial Science and Technology (AIST), Shimo-shidami, Moriyama-ku, Nagoya 463-8560, Japan.

出版信息

Materials (Basel). 2013 May 24;6(6):2119-2129. doi: 10.3390/ma6062119.

DOI:10.3390/ma6062119

PMID:28809264

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5458955/

Abstract

We fabricated hybrid films of pentaerythritol triacrylate (PETA) with core-shell ceria/poly(vinylpyrrolidone) (PVP) nanoparticles, which consist of cerium oxide as the core and PVP as the shell, and investigated the film optical properties. In this study, we used ceria/PVP nanoparticles with average diameters of 37, 49 and 91 nm. We obtained translucent films consisting of PETA with core-shell ceria/PVP nanoparticles. The core-shell ceria/PVP nanoparticles can reduce the transmittance of near-ultraviolet light. The transmittance of visible light and haze values depends not only on the thickness of the films, but also on the average diameter of the nanoparticles. A SEM observation and the optical analyses prove that the core-shell ceria/PVP nanoparticles do not aggregate into the PETA matrix.

摘要

我们制备了季戊四醇三丙烯酸酯（PETA）与核壳结构的二氧化铈/聚（乙烯基吡咯烷酮）（PVP）纳米粒子的混合薄膜，该纳米粒子以氧化铈为核、PVP为壳，并研究了薄膜的光学性质。在本研究中，我们使用了平均直径为37、49和91nm的二氧化铈/PVP纳米粒子。我们获得了由PETA与核壳结构的二氧化铈/PVP纳米粒子组成的半透明薄膜。核壳结构的二氧化铈/PVP纳米粒子可以降低近紫外光的透过率。可见光的透过率和雾度值不仅取决于薄膜的厚度，还取决于纳米粒子的平均直径。扫描电子显微镜观察和光学分析证明，核壳结构的二氧化铈/PVP纳米粒子不会在PETA基质中聚集。