Tensile behavior after oxidative aging of gum and black-filled vulcanizates of SBR and NR

被引：65

作者：

Hamed, GR ^{[1
]}

Zhao, J ^{[1
]}

机构：

[1] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA

来源：

RUBBER CHEMISTRY AND TECHNOLOGY | 1999年 / 72卷 / 04期

关键词：

D O I：

10.5254/1.3538829

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Typical sulfur-cured vulcanizates of styrene-butadiene rubber (SBR) and natural rubber (NR) were prepared, and subjected to air-oven aging at 100 degrees 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.

引用

页码：721 / 730

页数：10

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