Effects of the Synergy of Hardness and Resilience on the Akron Abrasion Properties of SBR Vulcanizates

The hardness (H) and resilience (R) of rubber vulcanizates were combined together in this paper, named as hardness–resilience product (H4R), and its relationship with the Akron abrasion loss was investigated using various styrene-butadiene rubber (SBR) vulcanizates possessing specific hardness and resilience characteristics as samples. For the unfilled SBR vulcanizates with different chain microstructure, possessing high elastic resilience and low hardness, the results showed that their Akron abrasion loss had a good linear relationship with the log(H4100R). This linear relationship also occurred when these SBRs were filled with 50 phr carbon black. For two particular types of SBR, after being filled with different fractions of carbon black and aged for different times, all their Akron abrasion losses (including unaged, aged for 24 h, and aged for 48 h) also had a good linear relationship with the log(H4100R). However, this linear relationship weakened for one of the SBRs after being aged for 48 h. In the high H4R region (the carbon black fractions being 60 and 70 phr), the data obviously deviated from the fitting curve due to the high hardness of the aged vulcanizates. However, after being filled with 50 phr of various kinds of carbon blacks, the relationships between abrasion loss and log(H4100R) were also approximately linear, with the correlation coefficient of the fitting curves being 0.99966 and 0.99878, respectively, for the two types of SBR.

[1]  J. Karger‐Kocsis,et al.  Rolling wear of EPDM and SBR rubbers as a function of carbon black contents: correlation with microhardness , 2008, Journal of Materials Science.

[2]  C. Hong,et al.  Effects of particle size and structure of carbon blacks on the abrasion of filled elastomer compounds , 2007 .

[3]  Y. Uchiyama,et al.  Relationships Between the Friction and Viscoelastic Properties of Rubber , 2000 .

[4]  J. Padovan,et al.  Topology of Wear Particles , 1999 .

[5]  Yoshihide Fukahori,et al.  Mechanism of rubber abrasion part 3: how is friction linked to fracture in rubber abrasion? , 1995 .

[6]  Yoshihide Fukahori,et al.  Mechanism of rubber abrasion: Part 2. General rule in abrasion pattern formation in rubber-like materials , 1994 .

[7]  A. H. Muhr,et al.  Rubber abrasion and wear , 1992 .

[8]  Alan G. Veirh.  A Review of Important Factors Affecting Treadwear , 1992 .

[9]  A. Gent,et al.  A Hypothetical Mechanism for Rubber Abrasion , 1989 .

[10]  S. W. Zhang.  Advances in studies on rubber abrasion , 1989 .

[11]  S. W. Zhang.  Mechanisms of rubber abrasion in unsteady state , 1984 .

[12]  Alan N. Gent,et al.  Mechanisms of rubber abrasion , 1983 .

[13]  K. A. Grosch,et al.  Relation between Abrasion and Strength of Rubber , 1966 .

[14]  K. A. Grosch,et al.  The relation between the friction and visco-elastic properties of rubber , 1963, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[15]  A. Schallamach,et al.  Abrasion of rubber by a needle , 1952 .

[16]  Zhao Shu-gao.  Effects of Carbon Black on the Abrasion Resistance of SBR , 2009 .

[17]  A. Bhowmick,et al.  Wear of natural rubber and styrene butadiene rubber vulcanizates at elevated temperatures , 1993 .

[18]  K. Zako,et al.  STUDIES OF RUBBER ABRASION. I , 1964 .