Effect of Nanosilica on the Mechanical Properties, Compression Set, Morphology, Abrasion and Swelling Resistance of Sulphur Cured EPDM/SBR Composites

Mapping Intimacies ◽

10.21203/rs.3.rs-222086/v1 ◽

2021 ◽

Author(s):

S. Vishvanathperumal ◽

Anand G

Keyword(s):

Mechanical Properties ◽

Abrasion Resistance ◽

Research Work ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Rubber Composites ◽

Cure Characteristics ◽

Compression Set ◽

Nanosilica Particles ◽

Styrene Butadiene

Abstract The main objective of the current research work is to explore the effect of nanosilica particles on the compound EPDM/SBR-SiO2 (ethylene-propylene-diene monomer/styrene-butadiene rubber-nanosilica). The composite EPDM/SBR with and without silane coupling agent was processed using an open mill mixer. The nanosilica particles are prepared in the laboratory and were used as the reinforcing material in EPDM/SBR rubber composites. The cure characteristics, mechanical properties, hardness, rebound resilience, swelling resistance, abrasion resistance and compression set of the composites are completely analyzed and studied. Nanosilic particles are produced in the laboratory and used as reinforcement material in EPDM/SBR rubber compounds. Fully analyzed and examined are the cure characteristics, mechanical properties, hardness, rebound resilience, swelling resistance, abrasion resistance and compression collection of the composites. It was also evident from the result that with the inclusion of nanosilica particles in the EPDM/SBR rubber composites, the mechanical properties, swelling resistance, hardness, abrasion resistance and compression set properties improved.

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Investigation of Epoxidized Palm Oils as Green Processing Aids and Activators in Rubber Composites

International Journal of Polymer Science ◽

10.1155/2019/2152408 ◽

2019 ◽

Vol 2019 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

DongJu Lee ◽

Sung Ho Song

Keyword(s):

Mechanical Properties ◽

Abrasion Resistance ◽

Raw Material ◽

Rubber Matrix ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Rubber Composites ◽

Green Processing ◽

Styrene Butadiene ◽

Heat Buildup

Epoxidized palm oil (EPO) is environmentally friendly, biodegradable, and a relatively less costly processing aid. In this study, we investigated the suitability of EPO in place of aromatic processing oils in styrene butadiene rubber. The curing properties, mechanical properties, abrasion resistance, and heat buildup properties of rubber composites with EPO were compared with those of the standard with aromatic oils. The rubber composites with EPO showed enhanced mechanical properties including modulus, tensile strength, and elongation at break. This is ascribed to the improved dispersion of fillers in the rubber matrix and interaction between the filler and the polymer. Furthermore, EPO in the rubber matrix showed remarkable abrasion resistance, rebound resilience, and heat buildup at low loadings. EPO in a rubber composite presents feasibility as a renewable raw material that can serve as an alternative to petrochemical oils in various applications.

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

Applied Sciences ◽

10.3390/app10207244 ◽

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.

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Effect of Urethane Based Bonding Agent on the Cure Characteristics and Mechanical Properties of Styrene Butadiene Rubber – Whole Tyre Reclaim - Short Nylon Fiber Composite

Progress in Rubber Plastics and Recycling Technology ◽

10.1177/147776060201800405 ◽

2002 ◽

Vol 18 (4) ◽

pp. 283-296 ◽

Cited By ~ 2

Author(s):

T.D. Sreeja ◽

S.K.N. Kutty

Keyword(s):

Mechanical Properties ◽

Fiber Composite ◽

Longitudinal Direction ◽

Bonding Agent ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Cure Characteristics ◽

Nylon Fiber ◽

Short Nylon Fiber ◽

Styrene Butadiene

The cure characteristics and mechanical properties of short nylon fiber – styrene butadiene rubber/whole tyre reclaim (SBR/WTR) composites with and without an interfacial bonding agent based on 4,4 diphenyl methane diisocyanate and polyethylene glycol (MDI/PEG) have been studied. An 80:40 blend of SBR/WTR reinforced with 20 phr of short nylon fiber has been selected and the MDI/PEG ratio has been changed from 0.67:1 to 2:1. The minimum and maximum torques increased with isocyanate concentration. The scorch time and cure time showed an initial reduction. The cure rate showed an initial improvement. Tensile strength, tear strength and abrasion resistance increased with MDI/PEG ratio, these values were higher in longitudinal direction. Resilience and compression set increased with isocyanate concentration.

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Influence of kaolinite particle size on cross-link density, microstructure and mechanical properties of latex blending styrene butadiene rubber composites

Polymer Science Series A ◽

10.1134/s0965545x15030177 ◽

2015 ◽

Vol 57 (3) ◽

pp. 350-358 ◽

Cited By ~ 4

Author(s):

Yude Zhang ◽

Qinfu Liu ◽

Jingjing Xiang ◽

Ray L. Frost

Keyword(s):

Mechanical Properties ◽

Particle Size ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Cross Link ◽

Rubber Composites ◽

Link Density ◽

Cross Link Density ◽

Styrene Butadiene ◽

Kaolinite Particle

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.284-286.401 ◽

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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Cure Characteristics and Mechanical Properties of NR/ SBR Blends Filled with Nano-sized CaCO3

Progress in Rubber Plastics and Recycling Technology ◽

10.1177/147776060502100202 ◽

2005 ◽

Vol 21 (2) ◽

pp. 101-115

Author(s):

Chaoying Wan ◽

Yong Zhang ◽

Yin Zhu ◽

Yinxi Zhang

Keyword(s):

Mechanical Properties ◽

Surface Modification ◽

Stearic Acid ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Cure Rate ◽

Cure Characteristics ◽

Cure Time ◽

Surface Modified ◽

Styrene Butadiene

Four kinds of nano-sized calcium carbonate (CaCO3) surface-modified with stearic acid, aluminate, titanate and aluminate-titanate complex coupling agents, were used to reinforce natural rubber (NR)/styrene-butadiene rubber (SBR) blends. The effects of surface modification and CaCO3 content on the cure characteristics, swelling behaviour, and mechanical properties of NR/SBR blends were studied. The surface modification of CaCO3 improved the processing and mechanical properties, and the stearic acid coated CaCO3 (SA-CaCO3) had finer dispersion and produced a better reinforcement effect than the other modified CaCO3. Furthermore, a commercial high abrasion furnace carbon black (HAF) was used for comparison. The results showed that both CaCO3 and HAF increased the cure rate, reduced the optimum cure time and improved the mechanical properties of NR/SBR blends at appropriate filler contents. The tensile strength of filled NR/SBR composites reached its maximum value when the SA-CaCO3 content was 50 phr or the HAF content was 30 phr. The modulus at 200%, tear strength, and Shore A hardness of filled NR/SBR composites all increased with increasing filler content. The CaCO3 reinforced the NR/SBR blends to some extent, though it was still not as effective as HAF.

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