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Citation: WANG Ya-Ming, LIU Lan, LUO Yuan-Fang, JIA De-Min. Thermal Stability of Fluoroelastomer/MEPDM Blends[J]. Acta Physico-Chimica Sinica, ;2008, 24(06): 1100-1104. doi: 10.3866/PKU.WHXB20080633 shu

Thermal Stability of Fluoroelastomer/MEPDM Blends

1.
College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China

Received Date: 17 January 2008
Available Online: 17 March 2008

The thermal degradation behaviors of fluoroelastomer and the blends of fluoroelastomer/MEPDM were investigated by thermogravimetry (TG) and derivative thermogravimetry (DTG). The kinetic parameters were evaluated by differential method and integral method. The results showed that the fluoroelastomer/MEPDM blends had higher thermal degradation temperature, but smaller apparent activation energy E than FPM, the E values were 251.74, 244.98, and 219.60 kJ·mol-1 for FPM, FPM/MEPDM(5%), and FPM/MEPDM(10%), respectively. The thermal decomposition reaction order was 0.95 for both FPM and FPM/MEPDM blends. The thermal decomposition apparent activation energy E increased with increasing mass fraction loss α. The TG and DTG results suggested that the FPM/MEPDM blends had excellent thermalstability. The kinetic data indicated that the FPM/MEPDM blends decomposed easily than FPMafter onset degradation temperature.
- Fluoroelastomer; Rubber blends; Thermal stability; Kinetics
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