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Thermal stability of ethylene–vinyl acetate and ethylene–propylene–diene (EVA–EPDM) blends

✍ Scribed by S. Mishra; S. Balakrishnan; R. Chandra

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
179 KB
Volume
70
Category
Article
ISSN
0021-8995

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✦ Synopsis

The thermal behavior of ethylene-vinyl acetate (EVA) and ethylene propylene-diene (EPDM) blends have been studied by thermogravimetry in nitrogen. The activation energy, preexponential factor, and lifetime have been calculated using software-based on the Flynn and Wall isoconversional procedure. The maximum thermal stability in nitrogen atmosphere was observed for the EV80 -EP20 blend.

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The effect of blend ratio on the crosslinking characteristics of ethylene vinyl acetate and ethylene propylene diene tercopolymer (EVA-EPDM) blends was studied by differential scanning calorimetry and a torque rheometer (Rheocord-90). The activation energy decreases with an increase in EVA content i