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3. Synthesis and characterization of polyurethane/CdS–SiO2 nanocomposites via ultrasonic process

Author

Chen, Jing, Zhou, Yu-Ming, Nan, Qiu-Li, Ye, Xiao-Yun, Sun, Yan-Qing, Wang, Zhi-Qiang, and Zhang, Shi-Ming

Subjects
*POLYURETHANES, *X-ray diffraction, *COMPOSITE materials, *NANOSTRUCTURED materials, *EMISSIVITY, *CADMIUM sulfide, *SILICA
Abstract

Abstract: In this study, the high-intensity ultrasound was applied in the preparation of chiral polyurethane/CdS–SiO2 nanocomposites. The polyurethane/CdS–SiO2 nanocomposites were analyzed by powder X-ray diffraction, thermogravimetric analysis (TGA), TEM and SEM. The results indicated that the heat stability of the nanocomposites was improved in the presence of CdS–SiO2 core-shell nanoparticles. The infrared emissivity (8–14μm) study revealed that the nanocomposites possessed much lower infrared values compared with those of the neat polymers and nanoparticles, respectively. A possible mechanism of ultrasonic induced composite reaction was proposed based on the experimental results. [Copyright &y& Elsevier]

Published
2008
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