scholarly journals Study of Carbon Black Types in SBR Rubber: Mechanical and Vibration Damping Properties

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2394
Author(s):  
Marek Pöschl ◽  
Martin Vašina ◽  
Petr Zádrapa ◽  
Dagmar Měřínská ◽  
Milan Žaludek
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Mechanical Energy ◽  
Mechanical Vibration ◽  
Particle Diameter ◽  
Vibration Damping ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Damping Properties ◽  
Rubber Composites

Styrene–butadiene rubber mixtures with four types of carbon black were studied in this paper. The mechanical properties, including the ability to damp mechanical vibration, were investigated, along with dynamical mechanical analysis (DMA). It has been found that carbon black types N 110 and N 330, having the largest specific surface area and the smallest particle diameter, provide a good stiffening effect. These particles have significant interactions between the rubber, resulting in good reinforcement. On the other hand, the carbon black N 990 type has a lower reinforcing effect and improved vibration damping properties at higher excitation frequencies due to higher dissipation of mechanical energy into heat under dynamic loading. The effect of the number of loading cycles on vibration damping properties of the rubber composites was also investigated in this study. It can be concluded that the abovementioned properties of the investigated rubber composites correspond to physical–mechanical properties of the applied carbon black types.

scholarly journals Influence of Eco-Friendly Processing Aids on Silica-Based Rubber Composites

2020 ◽  
Vol 10 (20) ◽  
pp. 7244
Author(s):  
Sung Ho Song
Keyword(s):  
Mechanical Properties ◽  
Rolling Resistance ◽  
Fatigue Properties ◽  
Rubber Matrix ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Dispersing Agent ◽  
Styrene Butadiene ◽  
Processing Aids

As eco-friendly “green tires” are being developed in the tire industry, conventionally used carbon black is being replaced with silica in rubber compounds. Generally, as a lubricant and dispersing agent, processing aids containing zinc ions have been employed as additives. However, as zinc is a heavy metal, alternative eco-friendly processing aids are required to satisfy worldwide environmental concerns. Furthermore, non-toxic, degradable, and renewable processing aids are required to improve the mechanical properties of the rubber composites. In this study, we evaluated the effects of diverse silica-based processing aids containing hydrocarbon, benzene, and hydroxyl functional groups on the mechanical properties of rubber composites. Among them, rubber composites that used amphiphilic terpene phenol resin (TPR) with hydrophilic silica showed compatibility with the hydrophobic rubber matrix and were revealed to improve the mechanical and fatigue properties. Furthermore, owing to the enhanced dispersion of silica in the rubber matrix, the TPR/styrene butadiene rubber composites exhibited enhanced wet grip and rolling resistance. These results indicated that TPR had multifunctional effects at low levels and has the potential for use as a processing aid in silica-based rubber composites in tire engineering applications.

Birchwood biochar as partial carbon black replacement in styrene–butadiene rubber composites

2015 ◽  
Vol 48 (4) ◽  
pp. 305-316 ◽  
Author(s):  
Steven C Peterson ◽  
Sriraam R Chandrasekaran ◽  
Brajendra K Sharma
Keyword(s):  
Carbon Black ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Styrene Butadiene

Processibility and Mechanical Properties of Mullite-Filled Styrene Butadiene Rubber Composites

2011 ◽  
Vol 284-286 ◽  
pp. 401-410
Author(s):  
Qiong Qiong Liu
Keyword(s):  
Mechanical Properties ◽  
Silane Coupling Agent ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Rubber Composites ◽  
Precipitated Silica ◽  
Roll Mill ◽  
Silane Coupling ◽  
Styrene Butadiene ◽  
Reinforcing Filler

Mullite (3A12O3·2SiO2) is an aluminosilicate ceramic of great technological importance. We investigated its potential as fillers in rubber. Mullites untreated or treated with 3% γ-mecapto-propyltrimethoxysilane (A-189) were added into styrene-butadiene rubber (SBR) materials on a laboratory-sized two-roll mill. For comparison, commercial precipitated silica was also used. The effect of these fillers on the cure characteristics, processibility and mechanical properties of SBR at various loadings, ranging from 0 to 50 phr was investigated. The results showed that mullite was a semi-reinforcing filler for SBR materials and exhibits better overall cure properties, lower Mooney viscosity, lower tensile set, better resilience as compared to precipitated silica, while it is inferior to precipitated silica especially with regard to tensile strength, tear strength and abrasion resistance. The presence of the silane coupling agent can enhance mechanical properties of filled SBR vulcanizates to some extent.

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