Effect of SiC and ZnO Nanoparticles on UV Absorbance and Heat Transfer of PET Composite Film |
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Authors: | Sung Won Park Hye Mi Choi Dong Soo Shin Tae Hwan Oh |
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Institution: | 1.Department of Nano, Medical and Polymer Materials,Yeungnam University,Gyeongsan,Korea;2.Seowon Tech Co.,Gyeongsan,Korea;3.Clavis,Gyeongsan,Korea |
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Abstract: | Zinc oxide (ZnO) and silicon carbide (SiC) nanoparticles were compounded with polyethylene terephthalate (PET) by using a twin screw extruder, and their effect on the UV absorption and heat transfer in PET/ZnO and PET/SiC composite films was investigated. The presence of ZnO and SiC in the PET matrix was verified by X-ray diffraction. The UV absorbance of both PET/ZnO and PET/SiC composite films increased with increasing particle content. The UV absorbance of PET/SiC was higher than that of PET/ZnO under the same particle content. A thermal imaging camera was used to analyze the heat transfer in PET/ZnO and PET/SiC composite films after heating them to 40 °C. As the content of ZnO and SiC particles increased, the temperature decreased more rapidly. PET/SiC showed faster cooling than PET/ZnO because of the higher thermal conductivity of SiC compared to that of ZnO. Response temperature surfaces for PET/ZnO and PET/SiC were obtained by using an exponential decay function and a second order equation, and the elapsed times to cool to room temperature were estimated. |
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