Correlation between Physico-Mechanical Properties of NR-BR Blends in Tire Tread Formulation with their Thermal Behaviors

Taghvaei-Ganjali, Saeed; Motiee, Fereshteh; Fotoohi, Farsa

doi:10.5254/1.3548211

Cited by 12 publications

(7 citation statements)

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“…The thermal decomposition of the composites recorded as a typical two-stage degradation process reported for a partially miscible blend. The initial degradation temperature of BR is superior than that of NR leading to overall improvement in thermal stability of the composite [35]. The initial degradation temperature of the standard formulation (B) starts at 301°C and this onset of degradation temperature was improved significantly by the incorporation of graphite filler.…”

Section: Compression Studymentioning

confidence: 99%

Tailoring of performance characteristics of green tyre tread formulation using thermally exfoliated graphite/ carbon black binary filler system via scalable and competent method

Jandas

Jose

et al. 2022

Preprint

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The present study is proposing an eco-friendly, green tyre tread formulation possessing excellent output properties in terms of abrasion resistance, mechanical, rolling resistance and heat buildup properties. A standard formulation was prepared with a nominal amount of carbon black (CB) filler and tried to reduce the filler loading to a minimum value without compromising the performance characteristics. The simultaneous reduction in aromatic oil content also tried to make the formulation eco-friendly. To compensate for the effect of changes in the formulation a binary hybrid filler system was prepared by the partial replacement of CB using graphite. To ensure the maximum dispersion, a filler masterbatch of graphite was prepared within natural rubber matrix (NR) as (50/50) composition and incorporated into the compound master batch. The effect of thermal exfoliation of graphite on the dispersion thereby the performance of the composite was also analyzed. The graphite was thermally treated for a sudden thermal shock for 15 minutes at various temperatures ranging from 400–550 ˚C. Rolling resistance and heat build-up were recorded 45% and 53% reduction respectively for the formulations with thermally exfoliated graphite in comparison with the standard formulation. Abrasion resistance showed 18% improvement and significant improvement in mechanical and thermal properties are also reported.

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Section: Compression Studymentioning

confidence: 99%

Tailoring of performance characteristics of green tyre tread formulation using thermally exfoliated graphite/ carbon black binary filler system via scalable and competent method

Jandas

Jose

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The thermal decomposition of the composites recorded as a typical two‐stage degradation process expected for a partially miscible blend. The initial degradation temperature of BR is superior than that of NR leading to overall improvement in thermal stability of the composite 38 . The initial degradation temperature of the standard formulation (B) starts at 301°C and this onset of degradation temperature was improved significantly by the incorporation of graphite filler.…”

Section: Resultsmentioning

confidence: 99%

Tuning the low rolling resistance, wet grip, and heat build‐up properties of tyre tread formulations using carbon black/thermally exfoliated graphite hybrid fillers

Jandas

Jose

Ajnas

et al. 2022

J of Applied Polymer Sci

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Ecofriendly green tyre tread compounds were developed with low rolling resistance, low heat buildup, and improved wet grip properties. A standard formulation of natural rubber (NR) and butadiene (BR) with 50 phr carbon black was prepared in a brabender plasticoder. Based on the processability, successful reduction of carbon black and aromatic oil content was done up to a minimum value of 32 and 3 phr respectively. Partial replacement of graphite with carbon black was done to achieve the optimized formulation. A binary filler system with 10 phr graphite and 22 phr carbon black was optimized based on the mechanical properties and further addition of graphite leads to reduction in properties due to agglomeration. To enhance the properties further, the graphite was thermally treated to get an exfoliated structure which can significantly improve the area of the filler/matrix macromolecules interface. This ultimately had a positive impact on targeted properties. A sudden thermal shock for 15 min at various temperatures ranging from 400 to 550 C was given and prepared the optimized binary formulation and evaluated the properties. Excellent results in terms of low rolling resistance (0.039) and heat build-up (18 C) were recorded for final formulation. The flex fatigue resistance was enhanced and the thermal stability improved by 29 C.

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“…After that, it decreases because of structure damage of main NR backbone as shown on graph A. Aoshuang Y. et al studied the effect of thermal aging on the operator NR /CR mixture at 70 ° C to 168 h [24]. More recently we have reported a correlation between psycho mechanical properties of NR/CR blend formulations of the tire tread with their thermal behavior [25].…”

Section: Tear Resistance (Tr)mentioning

confidence: 95%

Optimization of the Vulcanization Formula of Pneumatic Rubber Fender (PRF) to Increase Resistance to the Aging Process

Anggaravidya

Habibie

Hidayat

et al. 2021

JITM

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One rubber products, pneumatic rubber fender (PRF), is fully imported, where the raw material is made primarily by synthetic rubber. PRF products have been used in the transport sector as the impact protection of ports and ships. In this study, the mixture between natural and synthetic rubber conducted to determine the Â optimum formula ofÂ mixing rubber for Â the product PRF. Then the PRF-product was subjected to Aging Resistance Test (ART). Physical and mechanical properties of the PRF were analyzed by tensile strength test, elongation at break test, tear resistance test, hardness test, and also some samples of the product of mixing were observed by Fourier Transform Spectroscopy (FTIR), Thermogravimetry Analysis (TGA) and Scanning Electron Microscopy (SEM). The formula used in this study is the ratio of single-NR-100%; combinations of NR-70% and CR-30%; combinations of NR-30% and CR-70%; and the CR-100%. The results showed that the optimum mix formula for the PRF product is NR-70%: CR-30%.

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Correlation between Physico-Mechanical Properties of NR-BR Blends in Tire Tread Formulation with their Thermal Behaviors

Cited by 12 publications

References 0 publications

Tailoring of performance characteristics of green tyre tread formulation using thermally exfoliated graphite/ carbon black binary filler system via scalable and competent method

Tailoring of performance characteristics of green tyre tread formulation using thermally exfoliated graphite/ carbon black binary filler system via scalable and competent method

Tuning the low rolling resistance, wet grip, and heat build‐up properties of tyre tread formulations using carbon black/thermally exfoliated graphite hybrid fillers

Optimization of the Vulcanization Formula of Pneumatic Rubber Fender (PRF) to Increase Resistance to the Aging Process

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