Temperature impact on the mechanical and fatigue behavior of a non-crystallizing rubber

Schieppati, Jacopo; Schrittesser, Bernd; Wondracek, Alfred; Robin, Stefan; Holzner, Armin; Pinter, Gerald

doi:10.1016/j.ijfatigue.2020.106050

Cited by 24 publications

(15 citation statements)

References 45 publications

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“…The increase in the slope of the Mooney-Rivlin curves is attributed to a lower stretchability of the chains due to the strong interaction between the polymer and the filler, as reported. [61][62][63] T A B L E 3 Shore A hardness of the composites…”

Section: Mooney-rivlin Cross-link Densitymentioning

confidence: 99%

Using the Lorenz–Park, Mooney–Rivlin, and dynamic mechanical analysis relationship on natural rubber/leather shavings composites

Santos

Hiranobe

Dognani

et al. 2021

J of Applied Polymer Sci

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The tanning industry generates millions of tons of waste every year, which can cause environmental damage as well as problems to human health. In this article, we analyzed the use of leather shavings (20 to 80 parts per hundred rubber) as fillers in Natural Rubber (NR) composites. For this purpose, the interfacial interaction of the filler was quantitatively evaluated based on the cross-link density value calculated by the Flory-Rehner methodology using the Lorenz-Park equation (swelling). Then, the results of this evaluation were compared with those obtained by the Mooney-Rivlin method (by a stressstrain test). According to our findings, the tensile strength at rupture of the composites increased by 100%, that is, from 7.0 MPa (NR) to 14.0 MPa, when 80 phr of leather waste were incorporated. In addition, their final deformation decreased around 50% compared to pure gum (no filler). According to the Lorentz-Park equation, values over 0.7 indicate a strong interaction between the leather shavings and the NR matrix. Likewise, a dynamic mechanical analysis confirmed a strong interfacial interaction based on the B parameter. Scanning electron microscopy and Fourier transform infrared spectroscopy were employed to examine the morphology and chemical properties of the composites.

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Section: Mooney-rivlin Cross-link Densitymentioning

confidence: 99%

Using the Lorenz–Park, Mooney–Rivlin, and dynamic mechanical analysis relationship on natural rubber/leather shavings composites

Santos

Hiranobe

Dognani

et al. 2021

J of Applied Polymer Sci

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“…The properties of rubber materials are very sensitive to temperature. [40,41] In order to study the dependence of different cross-linking degrees on temperature, we performed uniaxial stretching on three SBR models with different cross-linking degrees at a constant strain rate of 0.01 ps -1 at different temperatures. Figure 7 shows the engineering stress-strain curves of three SBR models with cross-linking degrees of 0 (7a), 10% (7b), and 30% (7c) stretched at a fixed strain rate at 200, 300, and 400 K, respectively.…”

Section: Influence Of Temperature On Mechanical Propertiesmentioning

confidence: 99%

Effect of Cross‐Linked Structures on Mechanical Properties of Styrene‐Butadiene Rubber via Molecular Dynamics Simulation

Zhang

Wang

et al. 2021

Macro Theory & Simulations

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Styrene-butadiene rubber (SBR) is currently the main material for manufacturing passenger car tire treads due to excellent mechanical properties. The SBR is usually subjected to vulcanization treatment to improve the performance. This work uses molecular dynamics simulation to study the uniaxial stretching process of SBR with different cross-linking degrees, and analyzes the relationship between its molecular chain structures and mechanical properties. The results show that the cross-linked SBR model begins to deform plastically when the strain reaches 2.2, and there is no overall breaking within the limited deformation (≤4). Instead, it presents the characteristics of continuous partial breaking. Through the energy analysis, the deformation of the SBR system is mainly to overcome the energy required for the transformation of the non-oriented chain structure to the straight chain structure and the continuous stretching of the chain. In the cross-linked system, the increase in bond energy and bond angle energy associated with cross-linking dramatically increases the total energy of the system, thereby affecting the overall mechanical properties. In addition, temperature and strain rate have significant effects on the tensile properties of the cross-linked SBR system. Especially, the increase in the cross-linking degree reduces the temperature dependence of its stress-strain behavior.

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“…Excellent properties in heat, wear, and age resistance result in it being widely used in tires, transmission belts, hoses, and other applications in which the products are often used under loading cycles. Numerous researches have been conducted on rubber composite fatigue performance, which has brought improving the fatigue resistance of rubber to the forefront of current research 3–8 . Engineering tires, used in special environments such as mines, inevitably have cracks caused by sharp stones 9 .…”

Section: Introductionmentioning

confidence: 99%

Fatigue failure behavior of aramid fiber reinforced styrene butadiene rubber composite with different fiber coatings

Zhang

Yin

Luo

et al. 2022

Fatigue Fract Eng Mat Struct

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This study investigates the true stress evolution of aramid fiber (AF) reinforced styrene butadiene rubber (SBR)/carbon black (CB) composites with different interface characteristics in the fatigue failure process. AF was coated with epoxy‐functionalized silane (γ‐propyltrimethoxysilane, KH560) and butadiene styrene vinyl‐pyridine rubber latex (VPL). The influence of the interface characteristics on the mechanical and fatigue properties of the composites were explored. The results show that the fatigue crack growth rate of the rubber composites reinforced by a coated fiber with a flexible interface layer was significantly reduced. Furthermore, the fatigue failure behavior of the notched samples can be characterized by true stress evolution. The power‐law relationship of the true stress with both fatigue cycle and crack growth length was founded. Meanwhile, the stress evolution mechanism in the process of fatigue failure was discussed and the critical crack length corresponding to the point where the true stress begins to accelerate is found.

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Temperature impact on the mechanical and fatigue behavior of a non-crystallizing rubber

Cited by 24 publications

References 45 publications

Using the Lorenz–Park, Mooney–Rivlin, and dynamic mechanical analysis relationship on natural rubber/leather shavings composites

Using the Lorenz–Park, Mooney–Rivlin, and dynamic mechanical analysis relationship on natural rubber/leather shavings composites

Effect of Cross‐Linked Structures on Mechanical Properties of Styrene‐Butadiene Rubber via Molecular Dynamics Simulation

Fatigue failure behavior of aramid fiber reinforced styrene butadiene rubber composite with different fiber coatings

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