Mullins Effect and its Reversibility for Zinc Dimethacrylate-Reinforced Thermoplastic Vulcanizates Based on a Ethylene-Vinyl Acetate Copolymer/Nitrile-Butadiene Rubber Blend

Preparation of rubber nanocomposites using two or more nanofillers with different geometries is a new and promising approach. In this work, the effects of boron nitride nanosheets (BNNS), carbon nanotubes (CNT) and their hybrid (BNNS-CNT) on the performances of styrene butadiene rubber (SBR) nanocomposites are systematically studied. The mechanical properties of the nanocomposites are significantly enhanced by the nanofillers. The tensile strength of unfilled SBR is only 1.30 ± 0.18 MPa, which increases to 1.72 ± 0.24 MPa (BNNS), 4.09 ± 0.35 MPa (CNT), and 3.37 ± 0.29 MPa (BNNS-CNT) at 4 phr, respectively. Similarly, the tear strength of unfilled SBR is 8.0 kN/m, which increases to 13.8 kN/m (BNNS), 16.1 kN/m (CNT) and 18.2 kN/m (BNNS-CNT) at 4 phr, respectively. Moreover, the thermal behavior of the nanocomposites are analyzed. Compared with single nanofiller BNNS or CNT, BNNS-CNT hybrid nanofiller not only effectively improves the mechanical properties of nanocomposites, but also imparts better thermal properties. It is proved that the thermal decomposition temperature of SBR/4phr BNNS-CNT is increased by nearly 7 C compared with unfilled SBR.

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Mechanical and thermal performances of styrene butadiene rubber nanocomposites with boron nitride nanosheets, carbon nanotubes, and the hybrid filler system

Hao

Xing

et al. 2022

Polymer Composites

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The effect of ground tire rubber modified by deep eutectic solvents on the viscoelasticity of silica‐filled styrene‐butadiene rubber

Wei

Xin

2022

Polymer Engineering & Sci

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With the development of the recycling economy for waste rubber, the high‐value application of rubber powder, such as the modifier in asphalt mixture and the polyurethane foam, has attracted more and more attention. In the study, the surface characteristics of rubber powder modified by deep eutectic solvents were investigated by infrared spectroscopy, sol fraction, solid surface energy, and scanning electron microscope. The mechanical properties of modified ground tire rubber powder (M‐GTR)/SBR/silica composites were studied. Meanwhile, the viscoelasticity of the composites was characterized by the Payne effect and Mullins effect. Compared with the unmodified rubber powder, the rubber powder treated at 105°C had a higher sol fraction and maximum value of solid surface energy. With the increase of the content of M‐GTR, the Payne effect of the M‐GTR/SBR/silica composites firstly weakened and then increased. As for the Mullins effect, the vulcanizates showed stress‐softening phenomenon in the process of uniaxial cyclic compression. The recovery ability of the Mullins effect strongly depended on temperature. Besides, the modified rubber powder could improve the dispersity of silica in the SBR matrix, and the Mullins effect of the composite contained modified rubber powder was weak, which would provide potential high‐value application for rubber powder.

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Effect of in situ synthesis reaction of methacrylic acid (MAA)/zinc oxide (ZnO) on frictional wear of metals during compounding

Han,

Wang,

Wang

2024

Surface and Coatings Technology

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Mullins Effect and its Reversibility for Zinc Dimethacrylate-Reinforced Thermoplastic Vulcanizates Based on a Ethylene-Vinyl Acetate Copolymer/Nitrile-Butadiene Rubber Blend

Cited by 3 publications

References 19 publications

Mechanical and thermal performances of styrene butadiene rubber nanocomposites with boron nitride nanosheets, carbon nanotubes, and the hybrid filler system

Mechanical and thermal performances of styrene butadiene rubber nanocomposites with boron nitride nanosheets, carbon nanotubes, and the hybrid filler system

The effect of ground tire rubber modified by deep eutectic solvents on the viscoelasticity of silica‐filled styrene‐butadiene rubber

Effect of in situ synthesis reaction of methacrylic acid (MAA)/zinc oxide (ZnO) on frictional wear of metals during compounding

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