The Research of Poly Propylene Carbonate /Nano-SiO₂ Composites

Abstract:

Biodegradable poly (propylene carbonate) (PPC) composite with a slight improvement in the thermal stability and tensile strength was successfully prepared by incorporating a low content of nano-SiO₂. Tensile tests demonstrate the better mechanical properties of the composites prepared in this study. The obtained composites increases sharply from 1.57Mpa to 12.04Mpa by incorporating 5wt% nano-SiO_2. Furthermore, the composites show approximately 8°C higher glass transition temperature (Tg) than that of neat PPC.The T_dmax of composite with 5wt% of nano-SiO₂ was about 40°C higher than that of neat PPC.

• Periodical: Advanced Materials Research (Volume 904)
• Pages: 74-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.904.74
• Online since: March 2014
• Authors: Qu Li, Heng Wu, Si Yuan Xie, Jiao Sun, Xing Hai Liu, Hou Bin Li*
• Keywords: Glass Transition Temperature, Nanocomposite, Nano-SiO₂, Poly(propylene carbonate) (PPC)

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