Mechanical, thermal, and ultraviolet resistance properties of polycarbonate/cerium oxide composites
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- 作者：Y. W. Yao ; K. Shi ; J. J. Shang ; Y. Y. Zhang ; J. W. Lan
- 刊名：Polymer Science Series A
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：58
- 期：4
- 页码：578-584
- 全文大小：554 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Polymer Sciences
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1555-6107
- 卷排序：58
文摘
The composites containing polycarbonate (PC) and cerium oxide (CeO2) nanoparticles as well as nanoparticles modified with stearic acid (mCeO2) have been prepared using a melt blending method. The composites are studied by using FTIR spectroscopy, differential scanning calorimetry, thermal gravimetric analysis and scanning electron microscopy, and their tensile strength and ultraviolet (UV) resistance are examined. The results indicate that the introduction of CeO2 nanoparticles at 1 wt% can improve the mechanical properties of PC, while a weight ratio that is over 1 wt% can lead to a reduction in the tensile strength. Compared with the PC/CeO2 composites, the PC/mCeO2 composites provide better mechanical properties. Besides, the introduction of CeO2 nanoparticles gives PC promising UV resistance. However, different amounts of CeO2 nanoparticles used provide similar thermal and UV resistance in PC. In a comparison of the PC/CeO2 and PC/mCeO2 composites, there are no apparent differences observed between CeO2 and mCeO2 on improving the UV resistance of PC.The article is published in the original.