文章摘要
Effect of Carbon Black N330 Amounts on Damping Properties of NR
Received:July 27, 2022  Revised:August 15, 2022
DOI：10.12136/j.issn.1000-890X.2024.02.0115
Key Words: NR；carbon black N330；damping property；loss factor；dynamic/static stiffness ratio
Author NameAffiliationE-mail
TAN Bowen Qingdao University of Science and Technology tbw1029550998@163.com 
LIU Chaoqi Zhejiang Tiantie Industrial Co.，Ltd  
XU Shiqiang Qingdao University of Science and Technology  
WANG Deyue Qingdao University of Science and Technology  
WU Mingsheng* Qingdao University of Science and Technology  
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Abstract:
      The effect of carbon black N330 amounts on the damping properties of natural rubber（NR） was studied.The results showed that，with the increase of carbon black N330 amount，FL，Fmax and Fmax－FL of NR compound increased and t90 decreased，the Shore A hardness，tensile stress at 100% and 300% elongation，tensile strength and tear strength of NR vulcanizate increased，the elongation at break and rebound value decreased，the loss factor（tanδ） at low temperature decreased，and the loss factor at high temperature increased.With the increase in temperature，the tanδ of NR vulcanizate decreased，and the tanδ of NR vulcanizate with a large carbon black N330 amount decreased faster than NR vulcanizate with small carbon black N330 amount，indicating that the damping properties of NR vulcanizate with large carbon black N330 amount at high temperature were more sensitive to the temperature change.With the increase of carbon black N330 amount，the static stiffness and dynamic/static stiffness ratio of NR vulcanizate increased，indicating that the increase of carbon black N330 amount could improve the damping properties of NR vulcanizate.
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