期刊
POLYMER DEGRADATION AND STABILITY
卷 96, 期 10, 页码 1833-1840出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2011.07.013
关键词
Poly(propylene carbonate) (PPC); Modified graphite oxide (MGO); Composites; Solution intercalation; Properties
资金
- Xihua University [Z0910109]
Modified graphite oxide (MGO)/Poly (propylene carbonate) (PPC) composites with excellent thermal and mechanical properties have been prepared via a facile solution intercalation method. An intercalated structure of MGO/PPC composites was confirmed by X-ray diffraction and scanning electron microscope. The thermal and mechanical properties of MGO/PPC composites were investigated by thermal gravimetric analysis, differential scanning calorimetric, dynamic mechanical analysis, and electronic tensile tester. Due to the nanometer-sized dispersion of layered graphite in PPC matrix and the strong interfacial interaction between MGO and PPC, the prepared MGO/PPC composites exhibit improved thermal and mechanical properties in comparison with pure PPC. Compared with pure PPC, the MGO/PPC composites show the highest thermal stability and the T-g is 13.8 degrees C higher than that of pure PPC, while the tensile strength (29.51 MPa) shows about 2 times higher than that of pure PPC when only 3.0 wt.% MGO is incorporated. These results indicate that this approach is an efficient method to improve the properties of PPC. (C) 2011 Elsevier Ltd. All rights reserved.
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