文章摘要
Study on Properties of SSBR/NR Blends
Received:February 01, 2023  Revised:February 01, 2023
DOI：10.12136/j.issn.1000-890X.2024.10.0745
Key Words: SSBR；NR；compatibility；glass transition temperature；wear resistance；compression heat build-up；dry ground friction property
Author NameAffiliationE-mail
XU Jingjing* Doublestar Group Co.，Ltd 1677632548@qq.com 
WANG Jun Qingdao Doublestar Tire Industry Co.，Ltd  
LUO Baoyu Qingdao Doublestar Tire Industry Co.，Ltd  
HUANG Yigang Qingdao Doublestar Tire Industry Co.，Ltd  
DONG Kang Qingdao Doublestar Tire Industry Co.，Ltd  
CHEN Yating Qingdao Doublestar Tire Industry Co.，Ltd  
WANG Lufei Qingdao Doublestar Tire Industry Co.，Ltd  
LIU Wenguo Qingdao Doublestar Tire Industry Co.，Ltd  
ZHAO Xiaodong Qingdao Doublestar Tire Industry Co.，Ltd  
LIANG Xue Qingdao Doublestar Tire Industry Co.，Ltd  
WANG Guibin Jilin University  
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Abstract:
      The compatibility，physical properties，dynamic property and dry ground friction properties of solution polymerized styrene butadiene rubber（SSBR）/natural rubber（NR） blends with different styrene and vinyl content were studied.The results showed that after using SSBR with medium to high styrene content in combination with NR，the Mooney viscosity of the compound decreased，the curing rate increased，the processability improved，the compression heat build-up of the vulcanizate decreased，the low-temperature resistance improved，but the wet slip resistance decreased.As the difference in solubility parameters between SSBR and NR increased，the compatibility between SSBR and NR decreased，and the rate of glass transition temperature change of SSBR/NR vulcanizate showed a decreasing trend.As the compatibility between SSBR and NR increased，the influence of dispersed phase NR on the properties of SSBR/NR vulcanizate increased. The combination of SSBR and NR was beneficial for reducing compression heat build-up and improving wear resistance of vulcanizate，but the dry ground friction coefficient of vulcanizate was significantly reduced.
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