Tire tread performance of silica-filled SBR/BR rubber composites incorporated with nanodiamond and nanodiamond/nano-SiO2 hybrid nanoparticle

Khasraghi, Samaneh Salkhi; Momenilandi, Mahnoosh; Shojaei, Akbar

doi:10.1016/j.diamond.2022.109068

Cited by 19 publications

(15 citation statements)

References 53 publications

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“…As seen from the figure, the glass transition temperature ( T g ) of the modified rubber composites moved toward high temperature compared with the unmodified group, demonstrating that NRL coating and Si69 treatment could improve the interaction between silica and the rubber molecular chain. The good dispersion of silica effectively restricted the movement of the molecular chain, which is the reason for the increase in T g 31 . When the silica content is 60 phr, the T g of the composite material moves to low temperature.…”

Section: Resultsmentioning

confidence: 99%

“…When the silica content is 60 phr, the T g of the composite material moves to low temperature. This is because the higher the content is, the worse the dispersion is, resulting in agglomeration and reducing the interaction between silica and the rubber molecular chain 31,32 …”

Section: Resultsmentioning

confidence: 99%

“…The good dispersion of silica effectively restricted the movement of the molecular chain, which is the reason for the increase in T g . 31 When the silica content is 60 phr, the T g of the composite material moves to low temperature. This is because the higher the content is, the worse the dispersion is, resulting in agglomeration and reducing the interaction between silica and the rubber molecular chain.…”

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

“…This is because the higher the content is, the worse the dispersion is, resulting in agglomeration and reducing the interaction between silica and the rubber molecular chain. 31,32 Generally, the value of Tan δ at 0 C indicates the wet grip of the rubber material, and the larger the Tan δ value is, the better the wet-slip resistance. 33 As seen from the figure, among the rubber composites with the same silica content of 40 phr, after Si69 and NRL treatment, the Tan δ value of N/N-SiS40 was the highest at 0 C, and among the rubber composites with different silica contents treated by Si69 and NRL, the Tan δ value of N/N-SiS60 was the highest at 0 C, showing the best wet slip.…”

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

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Preparation and performance of natural rubber latex treatment for silica filled natural rubber composites

Wang

Luo

et al. 2023

J of Applied Polymer Sci

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Natural rubber latex filled with silica can be used to prepare low-cost green tires with low rolling resistance. However, low mixing efficiency and reduction of properties have become the major difficulty in the industry, because there are many polar groups on the surface of silica, and it is difficult to produce a strong interaction with a nonpolar rubber. In this paper, natural rubber latex masterbatch with silica was prepared, and easily mixed with natural rubber (NR) to obtain NR/silica composites. The silica after NRL treated in the rubber matrix characterized with well dispersion, good compatibility with rubber, and composites had weaker Payne effect and higher wet-skid resistance. Meanwhile, the 100% and 300% tensile modulus increased by 8.5% and 14.47%, respectively, notably decreasing heat build-up by 41.88%, compared to the composite prepared by dry mixing technology. Overall, both the dispersion and interfacial adhesion of silica in the rubber matrix have a significant synergistic effect on the properties of rubber composites. The strategy of preparing NR/silica composites provides new research avenues for the preparation of green tires and other rubber industries in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

Section: Dynamic Mechanical Analysismentioning

confidence: 99%

See 2 more Smart Citations

Preparation and performance of natural rubber latex treatment for silica filled natural rubber composites

Wang

Luo

et al. 2023

J of Applied Polymer Sci

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“…[18][19][20][21][22][23] Accordingly, nano-SiO 2 is found as one of the promising reinforcing nanofillers improving the performance of the rubber compounds via enhancement of physico-mechanical properties, thermal stability (much easier heat dissipation), and wear resistance. [24][25][26][27] The passenger car tire treads are mostly formulated with a rubber blend of styrene butadiene rubber (SBR)/butadiene rubber (BR). Indeed, SBR is commonly blended with high cis BR to improve the properties of a passenger car tire tread compounds such as rolling resistance, fuel economy, wear resistance, and especially the low temperature performance.…”

Section: Introductionmentioning

confidence: 99%

Enhancing tire tread performance with combined nano and micro-silica particles in styrene butadiene rubber/butadiene rubber compound

Salkhi Khasraghi,

Shojaei,

Momenilandi

2023

Journal of Elastomers & Plastics

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The influence of fumed nano-SiO2 on the performance of a typical tire tread compound, fabricated by mechanical mixing process, was investigated in the present research. The tire tread compound contained styrene-butadiene rubber (SBR)/ cis-butadiene rubber (BR) blend reinforced with a well-developed commercial highly dispersive silica filler at 70 phr loading. Nano-SiO2 with higher specific surface area, e.g., ∼240 m2/g, was substituted partially with silica particle at three different concentrations of 5, 10, 15 phr. Improvement in various aspects of the control sample including crosslink density calculated based on the swelling test and tube theory, bound rubber content, and physico-mechanical properties was observed for nano-SiO2 loading below 10 phr due to its effective role in refinement of filler dispersion state and enhancement of rubber-filler interactions. However, most of the properties were sacrificed at 15 phr nano-SiO2 loading even with respect to the control sample which emphasized the effectiveness of nano-SiO2 within an optimum loading. Moreover, nano-SiO2 at optimum loading exhibited great improvement in initial decomposition temperature about 50°C, considerable improvement in rolling resistance (more than 8%) and enhancement in wear resistance which could be crucial for tire tread manufacturers.

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An assessment of the role of nanosilica in thermal/thermo‐oxidative degradation mechanism of poly(lactic acid)/polybutylene adipate terephthalate blend nanocomposites

Khonakdar,

Khasraghi,

Yazdanbakhsh

et al. 2024

Polymers for Advanced Techs

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As a packaging materials candidate, based on a polylactic acid/ polybutylene adipate terephthalate (PLA/PBAT) blends (90/10 and 75/25 wt/wt) containing 1, 3, and 5 phr hydrophilic (HPL) and hydrophobic (HPB) nanosilica (NS) particles in the presence of a multifunctional epoxide compatibilizer were prepared by melt mixing, in a twin‐screw extruder. Scanning electron microscopic studies confirmed a matrix‐droplet morphology with finer dispersed domains at higher NS content. Energy dispersive spectroscopy mapping also indicated uniform dispersion of NS in blends, with some agglomerates at higher content of nanoparticles. Moreover, transmission electron microscope was applied to study the impact of nanofillers' localization on the systems' morphology. It was observed that NS particles localized at the PLA‐PBAT interface. In addition, thermogravimetric analysis (TGA) was used to investigate thermal stability and thermal degradation kinetics. Data indicates that hydrophobic NS improved thermal stability. The activation energy of degradation was calculated using several techniques of data modeling, including Friedman, Flynn‐Ozawa‐Wall, and Kissinger‐Akahira‐Sunose models. Among blend nanocomposites, 75/25 blend containing 5 phr HPB NS had the maximum degradation activation energy, suggesting that this sample had the most resistance to heat degradation. The intensity of the TGA/FTIR peaks of the evolved products was found to be correlated with the activation energy. The Criado's technique was also used to investigate the changes in the thermal degradation mechanism.

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Tire tread performance of silica-filled SBR/BR rubber composites incorporated with nanodiamond and nanodiamond/nano-SiO2 hybrid nanoparticle

Cited by 19 publications

References 53 publications

Preparation and performance of natural rubber latex treatment for silica filled natural rubber composites

Preparation and performance of natural rubber latex treatment for silica filled natural rubber composites

Enhancing tire tread performance with combined nano and micro-silica particles in styrene butadiene rubber/butadiene rubber compound

An assessment of the role of nanosilica in thermal/thermo‐oxidative degradation mechanism of poly(lactic acid)/polybutylene adipate terephthalate blend nanocomposites

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