Effect of Molecular Orientation on the Fracture Behavior of Carbon Black-Filled Natural Rubber Compounds

被引：15
|
作者：
Marano, Claudia [1 ]
Calabro, Roberto [1 ]
Rink, Marta [1 ]
机构：
[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, I-20133 Milan, Italy
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2010年 / 48卷 / 13期
关键词：
biaxial test; fracture; orientation; rubber; strenght anisotropy; INDUCED CRYSTALLIZATION; TEAR STRENGTH;
D O I：
10.1002/polb.22054
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The fracture behavior of carbon black-filled natural rubber compounds, differing in filler content, was studied performing tensile tests in biaxial loading conditions, using a central notched cross-shaped specimen. The test consisted of two steps: a drawing step was initially performed loading the specimen in the direction parallel to the notch plane, up to different draw ratios, and then the specimen was loaded in the direction normal to the notch plane up to fracture. Using a fracture mechanics approach, the fracture toughness was evaluated as a function of the draw ratio applied in the drawing step. A correlation between the fracture phenomenology observed and molecular orientability and orientation was attempted. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 1509-1515, 2010
引用
收藏
页码：1509 / 1515
页数：7
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