文章摘要
Structure and properties of NR/SSBR composites enhanced by carbon black/white carbon black
Received:July 12, 2017  Revised:July 12, 2017
DOI：
Key Words: Silica、NR、SSBR、structure、properties
Author NameAffiliationE-mail
lixu* Beijing University of Chemical Technology 12239660@qq.com 
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Abstract:
      The effect of the silica on the structure and properties of NR/SSBR composites by substituting for the same level of carbon black was investigated. The blend filled with 15phr silica has the highest mass fraction of bound rubber. RPA, DMTA and TEM results showed that the filler has the best dispersion while the blends filled with 15phr silica and it can also improve the compatibility of NR and SSBR. When the amount of silica is 5-10phr, the tensile strength, tear strength and permanent set of the NR/SSBR composites changed little; The elongation at break and shore A hardness of NR/SSBR composites decreased, and modulus at 300% increased while filled with 15phr silica. NR/SSBR composite filled with 15phr silica has the lowest tanδ at 60℃ and heat build-up, but the Akron abrasion increased.
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