文章摘要
Modification of NR with Trans-1,4-Poly(butadiene-co-isoprene) Rubber
Received:February 22, 2017  Revised:February 22, 2017
DOI：
Key Words: trans-1,4- poly(butadiene-co-isoprene) rubber; nature rubber; high performance tire; anti-vibration products; anti fatigue properties; rolling resistance
Author NameAffiliationE-mail
WANG Hao Chambroad Chemical Industry Institute Co., Ltd. kedawanghao@163.com 
ZHANG Jian-ping Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization,Key Laboratory of Rubber-plastics of Ministry of Education,School of Polymer Science and Engineering,Qingdao University of Science and Technology  
WANG Ri-guo Shandong Huaju Polymer Material Co,SLtd  
He Ai-hua* Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization,Key Laboratory of Rubber-plastics of Ministry of Education,School of Polymer Science and Engineering,Qingdao University of Science and Technology aihuahe@iccas.ac.cn 
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Abstract:
      Modification of nature rubber (NR) with two different trans-1,4-poly(butadiene-co-isoprene) copolymer rubbers (TBIR) were studied. It was found that, the scorch time (t10) and the optimum curve time (t90) of the NR/TBIR blends with 10~50 phr TBIR were slightly delayed. The mechanical properties of NR/TBIR vulcanizates were kept at a high level, and the anti-flex fatigue properties of NR/TBIR vulcanizates improved significantly. Compared with NR vulcanizates, the first-grade flex fatigue life of NR/TBIR-20=50/50 vulcanizate increased 28.6 times, and the sixth grade flex fatigue life increased 11.9 times. NR has a better compatibility with TBIR, and the Tg value of NR/TBIR blends decreased based on the DMA tests. The rolling resistance of NR/TBIR blends decreased obviously when compared to NR, which were supported from both the RPA and DMA results. TBIR is a novel synthetic rubber with high performance, which can improve the comprehensive properties of NR.
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