Effects of the interaction of hardness, resilience, and fatigue properties on the abrasion properties of rubber blends

Abstract

The establishment of prediction model for abrasion properties of vulcanizates, based on their simple physio-mechanical properties, is a hot research field in tribology. The hardness (H), resilience (R), and dynamic fatigue fracture parameters (m) of rubber vulcanizates were combined together in this article, named as hardness-resilience product (H m R), and its relationships with the abrasion loss for various vulcanizates [natural rubber (NR), styrene-butadiene rubber (SBR), butadiene rubber (BR), and their blends] was investigated by using Akron and DIN abrader. The results showed that, for NR/SBR blends with different SBR content, compared with log(H 4 R), the abrasion loss had much better linear relationship with log(H m R) for both Akron and DIN abrasion. This good linear relationship, for both Akron and DIN abrasion, also appeared in the SBR/BR blends with different BR content. Furthermore, for both blending systems (NR/SBR and SBR/BR), when all the data above were put together, the abrasion loss also had good linear relationships with its log(H m R) no matter for Akron or DIN abrasion, which indicated that this linear relationship had some universality.

Design of convex‐hull bionic tire tread compounds and mechanism on collaborative improvement of wet resistance and wear resistance

“…The possible reason was that carbon black N110 was harder than rubbers, so the addition of carbon black enhanced the overall hardness of tire tread compounds. Moreover, according to the carbon black reinforcement theory, with the gradual addition of carbon black, a growing number of filler network structures were formed between carbon black particles, and the network structures between carbon black particles were increasingly tightened and finally became harder tire tread compounds 33 . Furthermore, at the same carbon black content, the hardness of samples A was slightly larger than that of samples B (Figure 4).…”

“…Moreover, according to the carbon black reinforcement theory, with the gradual addition of carbon black, a growing number of filler network structures were formed between carbon black particles, and the network structures between carbon black particles were increasingly tightened and finally became harder tire tread compounds. 33 Furthermore, at the same carbon black content, the hardness of samples A was slightly larger than that of samples B (Figure 4). The possible reason was that the crosslinking density of NR-and BRblended rubbers was larger than that of NR-and SBRblended rubbers.…”

A new method for studying the wear properties of novel wear‐resistant ethylene propylene diene monomers/polyamide elastomer material from the perspective of cross‐linked network structure

“…Nishi et al established a wear model for rubber substrates at high frequencies based on the relationship between tear resistance and wear resistance by stress, strain, and number of failure cycles 8 . The team of Ju‐tao from the Qingdao University of Science and Technology established a wear performance prediction model based on the mechanical properties of vulcanized rubber and investigated the relationship among wear of natural rubber (NR), styrene‐butadiene rubber (SBR), butadiene rubber (BR), and their polymer blends using hardness, rebound, and dynamic fatigue fracture parameters 9 . It was not difficult to find that the combination of mechanical and rheological properties has become a hot topic in the field of friction and wear research on rubber polymers.…”