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天然橡胶的相对分子质量对全钢载重子午线轮胎胎体胶性能的影响及其快速表征方法评价
Effect of Relative Molecular Weight of NR on Properties of Carcass Compound of Truck and Bus Radial Tire and Its Rapid Characterization Method Evaluation
Received:November 08, 2022  Revised:November 08, 2022
DOI：
中文关键词: 天然橡胶；相对分子质量；全钢载重子午线轮胎；胎体胶；自粘性；动态力学性能
英文关键词: NR；relative molecular weight；truck and bus radial tire；carcass compound；tackiness；dynamic mechanical property
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Author NameAffiliationE-mail
CONG Minghui Triangle Tire Co.,Ltd congminghui@triangle.com.cn 
XU Yi Triangle Tire Co.,Ltd  
LI Chao Triangle Tire Co.,Ltd  
CUI Xiao Triangle Tire Co.,Ltd  
ZHOU Pengcheng Triangle Tire Co.,Ltd  
DONG Lingbo* Triangle Tire Co.,Ltd donglingbo@triangle.com.cn 
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中文摘要:
      研究天然橡胶（NR）的相对分子质量对全钢载重子午线轮胎胎体胶性能的影响，并使用不同方法对NR的相对分子质量进行表征。结果表明：NR的相对分子质量与胶料的门尼粘度呈正相关性，与胶料的门尼焦烧时间和自粘性呈负相关性；RSS3硫化胶的综合物理性能最优，10#标准胶硫化胶的综合物理性能最差；在一定区间内的NR相对分子质量与硫化胶的H抽出力呈强相关性；NR的塑性初值和门尼粘度只能粗略地表征NR的相对分子质量，复数粘度可以有效地表征NR的相对分子质量。
英文摘要:
      The effect of relative molecular weight of natural rubber（NR） on the properties of the carcass compound of truck and bus radial tire was studied，and different methods were used to characterize the relative molecular weight of NR.The results showed that the relative molecular weight of NR was positively correlated with the Mooney viscosity of the compound，and negatively correlated with the Mooney scorch time and tackiness of the compound.The comprehensive physical properties of RSS3 vulcanizate were the best，while the comprehensive physical properties of 10# standard vulcanizate were the worst.There was a strong correlation between the relative molecular weight of NR within a certain range and the H extraction force of the vulcanizate.The initial plasticity value and Mooney viscosity of NR could only roughly represent the relative molecular weight of NR，while complex viscosity could effectively represent the relative molecular weight of NR.
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