{"title":"Optical properties of polymer-based coatings containing metallic particles: effect of particle shape and binder","authors":"Kuilong Song, Ming Xie, Qing Ai","doi":"10.1007/s11998-023-00766-7","DOIUrl":null,"url":null,"abstract":"<div><p>Polymer-based coatings containing metallic microparticles are a kind of functional material with effective spectral selectivity. The spectral radiative transfer model of polymer-based coatings is built based on geometrical optics, and the spectral radiative characteristics of the coatings were investigated by Monte Carlo ray-tracing method. The coatings consist of aluminum particles with different shapes as fillers and four kinds of polymer resins as binders, respectively. After verifying the reliability of the method, the effect of particle shape and binder on the infrared emission properties in the range of 8–14 μm is systematically investigated. The results demonstrate that adding flake particles into the coating can obtain lowest infrared emissivity, which is at most 86.79% lower than the coating containing spherical particles when the volume fraction is 30%. The mean emissivity of Al/acrylic resin, Al/polyetherimide (PEI), Al/polymethyl methacrylate, and Al/polystyrene (PS) composite coatings is 0.46, 0.48, 0.41, and 0.22, respectively. Al/PS composite coating has the minimum mean infrared emissivity among these four kinds of polymer-based coatings, which is 54.2% lower than Al/PEI composite coating. The method proposed in this work will provide theoretical guidance for experimental research.</p></div>","PeriodicalId":48804,"journal":{"name":"Journal of Coatings Technology and Research","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Coatings Technology and Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11998-023-00766-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}
引用次数: 0
Abstract
Polymer-based coatings containing metallic microparticles are a kind of functional material with effective spectral selectivity. The spectral radiative transfer model of polymer-based coatings is built based on geometrical optics, and the spectral radiative characteristics of the coatings were investigated by Monte Carlo ray-tracing method. The coatings consist of aluminum particles with different shapes as fillers and four kinds of polymer resins as binders, respectively. After verifying the reliability of the method, the effect of particle shape and binder on the infrared emission properties in the range of 8–14 μm is systematically investigated. The results demonstrate that adding flake particles into the coating can obtain lowest infrared emissivity, which is at most 86.79% lower than the coating containing spherical particles when the volume fraction is 30%. The mean emissivity of Al/acrylic resin, Al/polyetherimide (PEI), Al/polymethyl methacrylate, and Al/polystyrene (PS) composite coatings is 0.46, 0.48, 0.41, and 0.22, respectively. Al/PS composite coating has the minimum mean infrared emissivity among these four kinds of polymer-based coatings, which is 54.2% lower than Al/PEI composite coating. The method proposed in this work will provide theoretical guidance for experimental research.
期刊介绍:
Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.