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Strain-induced Crystallization in Natural Rubber

Strain-induced Crystallization in Natural Rubber. Shigeyuki Toki 、Igors Sics and Benjamin S. Hsiao Chemistry Department State University of New York at Stony Brook. Rubber Research by Synchrotron X-Rays.

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Strain-induced Crystallization in Natural Rubber

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  1. Strain-induced Crystallization in Natural Rubber Shigeyuki Toki 、Igors Sics and Benjamin S. Hsiao Chemistry Department State University of New York at Stony Brook

  2. Rubber Research by Synchrotron X-Rays • Strain-induced crystallization and molecular orientation in natural and synthetic rubbers (NR, IR, BR, IIR) • Effect of network density and filler • Stress-strain relation and strain-induced crystallization and molecular orientation

  3. Instrumentation and sample • Synchrotron X-rays (NSLS at BNL) • Modified Instron stretching machine • Mar-CCD • Original length 25 mm, constant stretching rate (10 mm/min).

  4. Stress-strain relation and 2D and 3D WAXD patterns during extension and retraction in vulcanized NR at 25oC

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