Properties and Applications of High Emissivity Composite Films Based on Far-Infrared Ceramic Powder.

Yabo Xiong,Shaoyun Huang,Wenqi Wang,Xinghai Liu,Houbin Li

doi:10.3390/ma10121370

Yabo Xiong, Shaoyun Huang + Show 3 more

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https://doi.org/10.3390/ma10121370

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Journal: Materials	Publication Date: Nov 29, 2017
Citations: 6	License type: CC BY 4.0

Affiliation: Wuhan University, Wuchang University of Technology

Abstract

Polymer matrix composite materials that can emit radiation in the far-infrared region of the spectrum are receiving increasing attention due to their ability to significantly influence biological processes. This study reports on the far-infrared emissivity property of composite films based on far-infrared ceramic powder. X-ray fluorescence spectrometry, Fourier transform infrared spectroscopy, thermogravimetric analysis, and X-ray powder diffractometry were used to evaluate the physical properties of the ceramic powder. The ceramic powder was found to be rich in aluminum oxide, titanium oxide, and silicon oxide, which demonstrate high far-infrared emissivity. In addition, the micromorphology, mechanical performance, dynamic mechanical properties, and far-infrared emissivity of the composite were analyzed to evaluate their suitability for strawberry storage. The mechanical properties of the far-infrared radiation ceramic (cFIR) composite films were not significantly influenced (p ≥ 0.05) by the addition of the ceramic powder. However, the dynamic mechanical analysis (DMA) properties of the cFIR composite films, including a reduction in damping and shock absorption performance, were significant influenced by the addition of the ceramic powder. Moreover, the cFIR composite films showed high far-infrared emissivity, which has the capability of prolonging the storage life of strawberries. This research demonstrates that cFIR composite films are promising for future applications.

Highlights

Polymer composites with high strength, chemical and abrasion resistance, and desirable thermal and mechanical properties are increasingly used to replace metal components because of their improved strength-to-density ratios
556.9identical cm−1 can determined spectrum of tourmaline a natural with strong emissionofproperties) as C–O, Si–O, and Al–O,(recognized respectively.asThese bondsmineral are identical to thoseinfrared in the spectrum tourmaline in(recognized the 6–15 μm wavelength range. These results indicate that ceramic powder as a natural mineral with strong infrared emission properties) in the 6–15 μm wavelength isrange far-infrared
The main goal of this study was to prepare high emissivity composite films based on far-infrared ceramic powder

Summary

Introduction

Polymer composites with high strength, chemical and abrasion resistance, and desirable thermal and mechanical properties are increasingly used to replace metal components because of their improved strength-to-density ratios. Nylon, polythene, and polypropylene are commonly used polymer or fiber materials with wide-ranging applications such as in car parts, office materials, and hospital instruments. These materials have low densities, high specific strengths and moduli, and a low cost and are easy to process [1,2]. To further widen applications of polymer products and reduce environmental pollution, different fillers are added to form polymer composites. Such composite structure can often lead to less desirable mechanical properties

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