Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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Two-Dimensional Wide-Angle X-Ray Diffraction Simulation Study on Strain-Induced Crystallization and Temperature-Induced Crystallization of Un-Vulcanized Natural and Synthetic Rubber

56

Event: 182nd Technical Meeting
Location: Cincinnati, OH
Date: October 09, 2012
Author: Justin Che*, Christian Burger, Shigeyuki Toki, Lixia Rong, Benjamin S. Hsiao
Paper Number: 56

Price: $20.00

  • New insights into the strain-induced crystallization (SIC) and temperature-induced crystallization (TIC) of un-vulcanized natural rubber (NR) and synthetic polyisoprene rubber (IR) have been obtained using a novel two-dimensional simulation method that calculates a wide-angle X-ray diffraction (WAXD) pattern. Conventional one-dimensional profile analysis to determine crystallite information tends to be inaccurate due to Very broad peak shapes that lead to difficult identifications of exact scattering angles of crystal peaks. This new two-dimensional approach leads to more precise Values for integrated intensities and diffraction peaks, and can generate more accurate estimates for the crystallite size, percent crystallinity, as well as the preferred orientation. The WAXD patterns of strain-induced crystallization (SIC) and temperature-induced crystallization (TIC) of un-Vulcanized NR and IR were analyzed in this study. The calculated WAXD patterns from simulations were compared with the experimental obtained WAXD patterns and demonstrated an excellent fit. Lateral crystallite sizes, crystallinity fractions, and crystallite orientations were calculated from the simulated WAXD patterns.

    Papers from 182nd Technical Meeting

    Items from 182nd Technical Meeting