文章摘要
Application of Constant Viscosity NR Cup Lump in Base Rubber of V-Belt
Received:September 25, 2018  Revised:October 09, 2018
DOI：10.12136/j.issn.1000-890X.2019.04.0292
Key Words: NR；hydroxylamine hydrochloride；constant viscosity modification；V-belt；base rubber；flexing resistance；carbon black dispersion
Author NameAffiliationE-mail
DUAN Wenwen Rubber Research Institute，Chinese Academy of Tropical Agricultural Science；Qingdao University of Science and Technology 820102104@qq.com 
ZHAO Huaqiang Qingdao University of Science and Technology  
YU Yao Qingdao University of Science and Technology  
WANG Yuekun Rubber Research Institute，Chinese Academy of Tropical Agricultural Science  
WANG Hongzhen Rubber Research Institute，Chinese Academy of Tropical Agricultural Science；Qingdao University of Science and Technology  
XIN Zhenxing* Qingdao University of Science and Technology qustwhz@163. com 
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Abstract:
      Constant viscosity modification of natural rubber（NR） cup lump with viscosity stabilizer hydroxylamine hydrochloride（HH） was investigated. The effect of HH mass fraction on NR performance and the application of constant viscosity NR in V-belt base rubber were studied. The results showed that，the constant viscosity NR with different Mooney viscosity could be prepared by changing the HH mass fraction. The elastic modulus of constant viscosity raw NR modified by HH decreased，and the loss factor increased. The processability of the V-belt base rubber prepared by constant viscosity NR modified by HH was improved，the vulcanization speed increased，mixing energy consumption was reduced，production efficiency was improved， and the physical properties，flexing resistance and carbon black dispersion were improved. The V-belt base rubber with constant viscosity NR modified by HH with the mass fraction of 0.005 had the highest tensile strength and the best flexing resistance.
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