Affiliation:
1. 1Department of Polymer Science, University of Akron, Akron, OH 44325-3909
Abstract
Abstract
Typical sulfur-cured vulcanizates of styrene-butadiene rubber (SBR) and natural rubber (NR) were prepared, and subjected to air-oven aging at 100 °C. Gum specimens exhibited an initial aging period in which stiffness was unchanged, while tensile strength and strain-to-break were significantly reduced. In contrast, black-filled vulcanizates stiffened during early aging. After intermediate aging times, NR specimens softened, while SBR stiffened. With prolonged aging, all compositions became hard and inextensible.
Subject
Materials Chemistry,Polymers and Plastics
Cited by
66 articles.
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