文章摘要
Effect of Carbon Black/Carbon Nanotubes Blend Ratio on Physical Properties and Thermal Conductivity of NR Composites
Received:October 31, 2018  Revised:October 31, 2018
DOI：10.12136/j.issn.1000-890X.2019.06.0430
Key Words: carbon nanotubes；carbon black；NR；composite；filler network synergistic effect；physical property；thermal conductivity
Author NameAffiliationE-mail
SONG Junping Qingdao University of Science and Technology sjpwzj@163.com 
TIAN Kaiyan Qingdao University of Science and Technology  
LI Xiteng Qingdao University of Science and Technology  
WANG Yiwen Qingdao University of Science and Technology  
MA Lianxiang* Qingdao University of Science and Technology oldhorse@qust.edu.cn 
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Abstract:
      The effects of the blend ratio of carbon black（CB）/carbon nanotubes（CNTs） on the physical properties and thermal conductivity of natural rubber（NR） composites were studied. The results showed that，the properties of CB/CNTs/NR composites were improved compared with those of CB/NR composites. When the blend ratio of CB/CNTs was 28/7，the physical properties of the composites were the best，the storage modulus was the largest，the loss factor peak value was the lowest，and the thermal conductivity was the highest.It was shown by transmission electron microscopy that when the blend ratio of CB/CNTs was 28/7，CB and CNTs were dispersed uniformly，CNTs were not bent and agglomerated，and the CB aggregates were bridged by CNTs to form a good filler network.When the amount of CNTs continued to increase，a severe agglomeration of CB and CNTs occurred.The properties of the composites were closely related to the filler network synergistic effect.
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