Synthesis, characterization and infrared emissivity study of polyurethane/TiO2 nanocomposites |
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Authors: | Jing Chen Qiuli Nan Yanqing Sun Xiaoyun Ye Zhiqiang Wang |
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Institution: | School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China |
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Abstract: | In this study, polyurethane/titania (PU/TiO2) nanocomposites were prepared in ultrasonic process and characterized by fourier transform IR spectroscopy (FT-IR), powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and infrared emissivity analysis. The TEM and SEM results indicated that the nanoparticles were dispersed homogeneously in PU matrix on nanoscale. TGA-DSC confirmed that the heat stability of the composite was improved. Infrared emissivity study showed that the nanocomposite possessed lower emissivity value than those values of pure polymer and nanoparticles. |
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Keywords: | Polyurethane Nano-TiO2 Nanocomposites Polymers Emissivity |
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