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Vulcanization Efficiency of Non-polar Rubber Compounds by Microwave  

Jung, U-Sun (Department of Polymer Engineering, Pukyong National University)
Lee, Won-Ki (Department of Polymer Engineering, Pukyong National University)
Lim, Kwon-Tack (Department of Imaging System Engineering, Pukyong National University,)
Publication Information
Polymer(Korea) / v.35, no.3, 2011 , pp. 228-231 More about this Journal
Abstract
The rate of vulcanization of nonpolar ethylene-propylene-diene terpolymer(EPDM)/carbon black compounds was investigated by using hot air and microwave as a heating source. The present study parameters such as heating source, sample thickness, and loading of an additive. The compound thickness was the main factor in the hot air vulcanization. It was due to the poor thermal conductivity of EPDM; that is, the thicker thickness, the lower vulcanization rate. For 100% vulcanization, the compound with 3 mm thickness required 7 min at $250^{\circ}C$ in the hot air system. However, the vulcanization of EPDM compounds by microwave system was not affected by the thickness while strongly dependent on the amount of a polar additive, carbon black. A compound with 80 phr of carbon black was perfectly vulcanized within 30 sec. These results suggest that the use of microwave as a heating source is an effective method for the vulcanization of compounds including a polar component.
Keywords
EPDM; hot air; microwave; vulcanization; carbon black;
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Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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