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
Studies on dynamic and static crosslinking of ethylene vinyl acetate and ethylene propylene diene tercopolymer blends
✍ Scribed by S. Mishra; B. Baweja; R. Chandra
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 239 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
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 in the blend. The cure rate increases whereas the optimum cure time and energy consumption for curing decrease with an increase in the EVA/EPDM ratio. The dynamic curing obtained by the torque rheometer is very fast compared to the static curing obtained by differential scanning calorimetry.
📜 SIMILAR VOLUMES
## Theological properties of the blends of poly[ethylene(vinylacetate)] (EVAC; vinylacetate content 28V0) and polychloroprene (CR) have been measured through capillary and dynamic uniaxial elongational flows. Capillary flow indicates their shear thinning behavior. The decrease in the out of phase