Preparation and characterization of PVC/CsxWO3 composite film with excellent near‐infrared light shielding and high visible light transmission,Journal of Vinyl and Additive Technology

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Preparation and characterization of PVC/CsxWO3 composite film with excellent near‐infrared light shielding and high visible light transmission
Journal of Vinyl and Additive Technology ( IF 3.8 ) Pub Date : 2021-01-11 , DOI: 10.1002/vnl.21811
Keshun Su _{1,

2} , Zepeng Mao _{1,

2} , Zhangbin Yang _{1,

2} , Jun Zhang _{1,

2}

Affiliation

Near‐infrared (NIR) shielding is essential not only in the building and automobile glass films but also in achieving energy conservation. However, effectively shielding NIR and maintaining high transmittance in the visible light region have been great challenges in the past decade. Recently, hexagonal cesium tungsten bronze (Cs_xWO₃) nanoparticles have been widely studied due to the excellent transparency in the visible light region and strong heat‐shielding ability in the NIR region. Herein, a design concept of transparent polyvinyl chloride (PVC)/Cs_xWO₃ composite film, as a heat insulation material for glasses, was proposed. To achieve this purpose, the PVC/Cs_xWO₃ composite film was prepared by incorporating Cs_xWO₃ slurry with better dispersion than traditional Cs_xWO₃ nanoparticles powder into a transparent PVC matrix. By the UV‐Vis‐NIR spectrophotometer characterization, the PVC/Cs_xWO₃ composite film containing 2.1 phr Cs_xWO₃ slurry displays high blocking of NIR (78%) and high transmittance of visible light (76%). In order to further understand the actual heat insulation effect from the PVC/Cs_xWO₃ composite films, the indoor sunlight simulation test and outdoor cooling experiment with solar illumination variations were carried out, which both showed heat insulation that is superior to the antimony tin oxide and indium tin oxide thin films prepared in our previous work. In addition, the mechanical property of PVC/Cs_xWO₃ composite films shows almost no change with the increase of Cs_xWO₃ slurry. The PVC/Cs_xWO₃ composite films simultaneously achieve excellent shielding of NIR and high transmittance of visible light, which makes it an ideal material to alleviate the current building energy consumption issues.

中文翻译：

具有优异的近红外光屏蔽和高可见光透射率的PVC / CsxWO3复合膜的制备与表征

近红外（NIR）屏蔽不仅在建筑和汽车玻璃膜中至关重要，而且在实现节能方面也至关重要。但是，在过去的十年中，有效地屏蔽NIR并在可见光区域保持高透射率一直是巨大的挑战。近年来，六角形铯钨青铜（Cs _x WO ₃）纳米粒子由于在可见光区域具有出色的透明度和在近红外区域具有很强的隔热能力而得到了广泛的研究。在此，提出了作为玻璃的隔热材料的透明聚氯乙烯（PVC）/ Cs _× WO ₃复合膜的设计思想。为了达到这个目的，PVC / Cs _x WO ₃通过将具有比传统Cs _x WO ₃纳米颗粒粉末更好的分散性的Cs _x WO ₃浆料掺入透明的PVC基体中来制备复合膜。通过UV-Vis-NIR分光光度计的表征，包含2.1 phr Cs _x WO ₃浆料的PVC / Cs _x WO ₃复合膜显示出对NIR的高阻隔（78％）和对可见光的高透射率（76％）。为了进一步了解PVC / Cs _x WO ₃的实际隔热效果进行了复合膜，室内日光模拟试验和具有阳光照度变化的室外制冷实验，两者均显示出比我们先前工作中制备的氧化锑锡和氧化铟锡薄膜更好的隔热性。另外，PVC / Cs _x WO ₃复合膜的机械性能几乎不随Cs _x WO ₃浆料的增加而变化。PVC / Cs _x WO ₃复合膜同时具有出色的近红外屏蔽性能和可见光的高透射率，这使其成为减轻当前建筑能耗问题的理想材料。

更新日期：2021-01-11

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