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首页> 外文期刊>Materials Chemistry and Physics >Stability, UV shielding properties, and light conversion behavior of Eu(BMDM)_3@polysiloxane nanoparticles in water and polyurethane films
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Stability, UV shielding properties, and light conversion behavior of Eu(BMDM)_3@polysiloxane nanoparticles in water and polyurethane films

机译：Eu（BMDM）_3 @聚硅氧烷纳米粒子在水和聚氨酯薄膜中的稳定性，紫外线屏蔽性能和光转换行为

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摘要

Bifunctional Eu(BMDM)_3@polysiloxane nanoparticles were prepared through reprecipitation -encapsulation methods using 1-(4-tert-butylphenyl)-3-(4-methoxyphenyl)-1,3-propanedione (BMDM) ligand and octyltrimethoxysilane (OTS) precursor and embedded into waterborne polyurethane (PU) coatings to fabricate transparent optical composite films. The photostability and ther-mostability of the nanoparticles in water and their ability to block UV and convert light when embedded in PU films were investigated. In comparison with the control Eu(BMDM)_3 nanoparticles, the Eu(BMDM)_3@polysiloxane nanoparticles, especially those prepared at a Eu(BMDM)_3/OTS mole ratio of 1:2, exhibited far superior stability under storage conditions, UV irradiation, and heating. They also showed excellent UV-shielding and highly efficient light conversion properties because of the protective polysiloxane.
机译：使用1-（4-叔丁基苯基）-3-（4-甲氧基苯基）-1,3-丙二酮（BMDM）配体和辛基三甲氧基硅烷（OTS）前体通过再沉淀-包封方法制备双功能Eu（BMDM）_3 @聚硅氧烷纳米颗粒并嵌入到水性聚氨酯（PU）涂料中以制造透明的光学复合膜。研究了纳米粒子在水中的光稳定性和热稳定性，以及嵌入到PU膜中时阻挡紫外线和转换光的能力。与对照Eu（BMDM）_3纳米粒子相比，Eu（BMDM）_3 @聚硅氧烷纳米粒子，尤其是以Eu（BMDM）_3 / OTS摩尔比为1：2制备的纳米粒子，在储存条件下，紫外线下表现出优异的稳定性。辐射和加热。由于具有保护性的聚硅氧烷，它们还具有出色的紫外线屏蔽性能和高效的光转换性能。

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  • 来源
    《Materials Chemistry and Physics》 |2013年第2期|644-651|共8页
  • 作者

    Xiaolong Wang; Shuxue Zhou; Limin Wu;

  • 作者单位

    Department of Materials Science, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai 200433, China;

    Department of Materials Science, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai 200433, China;

    Department of Materials Science, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai 200433, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Composite materials; Thin films; Optical properties; Thermal properties;

    机译：复合材料;薄膜;光学性质;热性能;

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