A novel methodology for evaluating wear behavior of rubber composites under combination of sliding and rolling conditions

The wear behavior of tire tread rubber composites has attracted widespread attention of researcher duo to its serious environmental pollution and high frequency of occurrence for a long time. Herein, a new test method is developed, an improved Akron friction testing machine on a laboratory scale was...

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Bibliographic Details
Published in:Polymer engineering and science 2020-09, Vol.60 (9), p.2122-2132
Main Authors: Wu, Yanping, Dong, Jia, Sun, Congzhi, Li, Jinlong, Chen, Jianmin
Format: Article
Language:English
Subjects:
Analysis
Composite materials
Heat distribution
Methods
Numerical analysis
Rubber
Sliding
Thermal decomposition
wear behavior
wear mechanism
Wear mechanisms
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Summary:The wear behavior of tire tread rubber composites has attracted widespread attention of researcher duo to its serious environmental pollution and high frequency of occurrence for a long time. Herein, a new test method is developed, an improved Akron friction testing machine on a laboratory scale was utilized to estimate the wear loss and mechanism of the rubber composites under rolling and sliding coupling condition. The results indicated that the wear loss quickly increases with the increase of the relative sliding velocity. The main wear mechanism, including adhesive, thermofatigue, tear and curl wear, was governed by the thermal deposition of the worn surface. Scanning electron microscope analysis showed thermal decomposition tear region gradually expanded on the worn surface by increasing relative sliding velocity. The heat distribution numerical analysis supported the experimental results, which confirmed that the heat distribution of the worn surface is entirely consistent with the distribution of the thermal decomposition tear region.
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.25456