紫外光固化纳米WO涂层的制备及其红外屏蔽性能

Preparation of UV-Curable Nano-WOCoating and Its Infrared Shielding Properties.

作者信息

Wang Zhengjie, Zhong Rong, Lai Ting, Chen Tianlei

机构信息

School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, China.

出版信息

Nanomaterials (Basel). 2022 Nov 7;12(21):3920. doi: 10.3390/nano12213920.

DOI:10.3390/nano12213920

PMID:36364696

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9654216/

Abstract

Nano-WO particles are expected to find use in new shielding materials because of their significant absorption of near-infrared light in the 1400-1600 nm and 1900-2200 nm bands and high transmittance of visible light. In this study, WO was ground and dispersed using high-energy ball-milling to prepare a nano-WO dispersion using BYK331 as the dispersant and ethanol as the solvent. The prepared nano-WO dispersion was added to a photo-curing system and cured using UV irradiation to form films. The cured films were characterized using FT-IR, SEM, XRD, and TGA. The results showed that the nano-WO powder was evenly dispersed in the coating. The infrared blocking rate of the film continuously improved and the visible light transmission rate continuously decreased with increasing amounts of nano-WO.For the film containing 6 wt%nano-WO, the infrared blocking rate of the coating is 90%, the visible light transmittance is 70%, the hardness of the coating is 3B, and the adhesion is 3H. The thermal stability of the coating is also improved.

摘要

由于纳米WO颗粒在1400 - 1600纳米和1900 - 2200纳米波段对近红外光有显著吸收以及对可见光有高透过率，预计其可用于新型屏蔽材料。在本研究中，使用高能球磨对WO进行研磨和分散，以BYK331作为分散剂、乙醇作为溶剂制备纳米WO分散体。将制备好的纳米WO分散体添加到光固化体系中，通过紫外线照射固化形成薄膜。使用傅里叶变换红外光谱（FT - IR）、扫描电子显微镜（SEM）、X射线衍射仪（XRD）和热重分析仪（TGA）对固化后的薄膜进行表征。结果表明，纳米WO粉末均匀分散在涂层中。随着纳米WO含量的增加，薄膜的红外阻隔率不断提高，可见光透过率不断降低。对于含有6 wt%纳米WO的薄膜，涂层的红外阻隔率为90%，可见光透过率为70%，涂层硬度为3B，附着力为3H。涂层的热稳定性也得到了提高。