Low-density polyethylene/ethylene-propylene-diene terpolymer/carbon black blends were irradiated in air with a 6oCo y ray or an electron beam accelerator. The absorbed dose ranged from 1-400 Mrad. The influences of irradiation on positive temperature coefficient behavior of the blends were analyzed.
Effects of carbon blacks on electrical properties of EPDM compounds
β Scribed by Chul Ho Lee; Sang Wook Kim
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 270 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
The correlations between mechanical and electrical properties of ethylene propylene diene terpolymer (EPDM) compounds and carbon black types and levels applied are studied. Tensile strength increases with an increase of the carbon black, especially for carbon black with higher surface area. Tracking resistance of EPDM compounds improves when a small amount of relatively nonconductive carbon blacks are added to EPDM compounds, whereas conductive carbon blacks decrease both dielectric properties and tracking resistance of EPDM compounds. Possible reasons for these results are discussed.
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