Author(s)

Chunyu Mao ¹, Xirui Sun ¹, Feng Liu ¹, Guangwen Zhou ¹

Affiliation(s)

¹ School of Mechanical and Automotive Engineering, Jilin Engineering Normal University, Changchun, Jilin, China

Corresponding Author

Chunyu Mao

ABSTRACT

The wear resistance of tire tread rubber is an important indicator for evaluating tire performance. In response to the need for improving the wear resistance of tire tread rubber, this study investigated the influence of blending ratios of natural rubber (NR), styrene-butadiene rubber (SBR1502E), and polybutadiene rubber (BR9000) on the properties of tread rubber. Experimental results showed that in terms of vulcanization characteristics, elongation at break, and hardness, BR had the longest vulcanization time, NR had the highest elongation at break, and BR had the greatest hardness. After blending the rubbers, their properties fell between the two types of rubber and varied with the content. In terms of tensile strength, NR performed the best, while BR was weaker. However, when NR/BR and NR/SBR were blended in a ratio of 80/20, the tensile strength was significantly improved. In terms of wear resistance, BR performed the best, while SBR was weaker. However, when SBR/NR was blended, especially at ratios of 40/60 and 60/40, the wear resistance was significantly improved, with less wear than single rubber. This study not only revealed the influence pattern of different rubber blending ratios on the wear resistance of tread rubber, but also provided new ideas for the tire industry to improve wear resistance, reduce pollution, and extend service life.

KEYWORDS

Tread Rubber, Wear Resistance, Tensile Strength, Elongation at Break, Shore Hardness

CITE THIS PAPER

Chunyu Mao, Xirui Sun, Feng Liu, Guangwen Zhou, Study on the Influence Law of Rubber Blending on the Wear Resistance of Tread Rubber. Journal of Materials, Processing and Design (2024) Vol. 8: 97-106. DOI: http://dx.doi.org/10.23977/jmpd.2024.080112.

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