English Abstract
Evaluation of Uniformity of NBR Compound by the Variation in Electric Current during Vulcanization

Toyohiko GONDOH1
Tetsuo MORI1
Michiharu TOH2
Mutsuhisa FURUKAWA3
1; Department of Biochemistry and Applied Chemistry, Kurume National College of Technology, Kurume , Japan
2; Kurume Research Park, Kurume, Japan,
3; Graduate School of Science and Technology, Nagasaki University, Nagasaki, Japan
Nippon Gomu Kyokaishi,(2009),82(8),344-348 Original Paper in Japanese

Abstract
Few reports have been published on the influence of the uniformity of rubber compounds on the quality of rubber products. In this work, NBR compounds of different degree of dispersion of additives were vulcanized in a mold equipped with two electrodes to measure the electric current during vulcanization. The electric current-cure time curves of these samples reflected the uniformity of NBR compounds.

(Received on November 20, 2008)
(Accepted on April 14, 2009)

 Keywords:
Rubber Compound, Uniformity, Electric-current, Cure Time, Vulcanization
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