文章摘要
Comparative Study on Tensile Orientation Behavior of Peroxide DCP Cross-linked and Sulfur Cross-linked SBR System
Received:August 11, 2018  Revised:August 11, 2018
DOI：10.12136/j.issn.1000-890X.2019.07.0489
Key Words: SBR；peroxide；sulfur；crosslinking system；infrared dichroism method；tensile orientation
Author NameAffiliationE-mail
WANG Xue Beijing University of Chemical Technology 2658449885@qq.com 
ZHANG Xi Beijing University of Chemical Technology  
WU Xiaohui Beijing University of Chemical Technology  
LU Yonglai* Beijing University of Chemical Technology luyonglai@mail.buct.edu.cn 
LI Xiaolin Beijing University of Chemical Technology  
ZHANG Liqun Beijing University of Chemical Technology  
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Abstract:
      The orientation degree of peroxide DCP cross-linked SBR system（DCP/SBR vulcanizate） and sulfur cross-linked SBR system（S/SBR vulcanizate）under different tensile strain was determined by infrared dichroism method using Fourier transform infrared spectrometer，and the tensile orientation behavior of the two systems was compared.The results showed that，the orientation degree of the DCP/SBR vulcanizate and S/SBR vulcanizate increased as the strain increased during the stretching process.In the case of similar crosslink density，the S/SBR vulcanizate was more prone to tensile orientation，and the orientation degree was much larger than that of the DCP/SBR vulcanizate.The results of the infrared dichroism method were confirmed by the Mooney-Rivlin model fitting.
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