文章摘要
Effect of NBR on Properties of Bead Compound of Radial Tire
Received:September 09, 2015  Revised:September 09, 2015
DOI：
Key Words: radial tire；bead compound；nitrile rubber；adhesion property；dynamic property
Author NameAffiliationE-mail
SUN Bin 青岛科技大学 橡塑材料与工程教育部重点实验室 sunplayer123@163.com 
XIN Zhen-xiang 青岛科技大学 橡塑材料与工程教育部重点实验室  
YAO Li-li 江苏兴达钢帘线股份有限公司  
NI Zi-fei 江苏兴达钢帘线股份有限公司  
MIAO Wei-gang 江苏兴达钢帘线股份有限公司  
ZHANG Zhen-xiu* 青岛科技大学 高分子科学与工程学院 zhangzhenxiu@qust.edu.cn 
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Abstract:
      The effect of NBR on the vulcanization characteristics，mechanical properties，dynamic properties and adhension property of bead compound of radial tire was investigated.The results showed that with the addition level of NBR increasing，the vulcanization rate of bead compound increased，Mooney viscosity reduced and hardness increased slightly；before aging，with the addition level of NBR increasing，the tensile properties of bead compound decreased gradually，and tearing strength of bead compound decreased firstly and then increased；after aging，NBR delayed the mechanical property drop，especially tear strength；the loss factor of bead compound increased and dynamic heat build up increased with the increase of NBR content；NBR could obviously improve the adhesion property between bead wire and bead compound，and the best adhesion property could be obtained when the addition level of NBR was 20 phr.
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