Elastic Properties of Polychloroprene Rubbers in Tension and Compression during Ageing

Bouaziz, Rami; Truffault, Laurianne; Borisov, Rouslan; Ovalle, Cristian; Laiarinandrasana, Lucien; Miquelard‐Garnier, Guillaume; Fayolle, Bruno

doi:10.3390/polym12102354

Cited by 28 publications

(17 citation statements)

References 33 publications

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“…In another word it may be clarify aged samples relatively shows the lower elongation because of it recuperate the properties in coarse of ageing treatment. Similar natures of higher values of Poisson's ratios are observed for bearing pad rubber because of the higher elongation of bearing pad rubber [25,26].…”

Section: Poisson's Ratiosupporting

confidence: 66%

Temperature Dependent Mechanical Properties of Natural and Synthetic Rubber in Practical Structures

Kaiser¹,

Rabbani²,

Ahmed³

et al. 2021

AMS

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In this proposal the mechanical properties of natural and synthetic rubbers are studied under different temperatures both real and ageing heat treatment conditions. For this purpose, tire rubber and bearing pad rubber are considered as they are most governed in natural and synthetic rubber respectively. The experimental results confirm that the impact of real temperature is higher on the mechanical properties than that of ageing temperature because of ambient temperature aggravate thermal motion and changes the molecular arrangement of rubber other than the ageing samples recovers the mechanical properties during breezy. Except hardness, all the cases in terms of mechanical properties like tensile strength, elongation, Young's modulus and Poisson's ratio of bearing pad rubber provide the higher performance than the tire rubber. Under ageing treatment condition the degraded mechanical properties recover well by the natural rubber since extremely ordered long chain of the molecular structure. The significant differences in the micrographs of the two rubbers suggest that tire rubber consists of uniform grains because of its highly controlled molecular arrangement. Under heat treatment the microstructure turned rougher and the size of the voids became larger as temperature increases the secondary cross linking reaction which initiate to cracks.

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Section: Poisson's Ratiosupporting

confidence: 66%

Temperature Dependent Mechanical Properties of Natural and Synthetic Rubber in Practical Structures

Kaiser¹,

Rabbani²,

Ahmed³

et al. 2021

AMS

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“…Thus, it can be concluded that the elastic strain resulting from the application of a given stress for Act8-containing vulcanizates was smaller than for elastomers without this accelerator [57]. The Young's modulus (E) presented in Table 4 is a measure of the stiffness of the material and depends on the crosslink density of elastomer [56]. As the stiffness of the tested vulcanizates increased with the crosslink density, their Young's modulus was also increased.…”

Section: Influence Of the Dibenzyldithiocarbamate Accelerator On The ...mentioning

confidence: 95%

“…The results are given in Table 4, whereas the stress-strain curves are shown in Figure 3. The Young's modulus (E) presented in Table 4 is a measure of the stiffness of the material and depends on the crosslink density of elastomer [56]. As the stiffness of the tested vulcanizates increased with the crosslink density, their Young's modulus was also increased.…”

Section: Influence Of the Dibenzyldithiocarbamate Accelerator On The ...mentioning

confidence: 99%

The Synergistic Effect of Dibenzyldithiocarbamate Based Accelerator on the Vulcanization and Performance of the Silica-Filled Styrene–Butadiene Elastomer

Maciejewska

Sowińska‐Baranowska

2022

Materials

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This work focused on studying the effect of dibenzyldithocarbamate vulcanization accelerator on the curing characteristics and performance of styrene–butadiene elastomer (SBR) filled with nanosized silica. A dibenzyldithocarbamate derivative was applied as an additional accelerator to enhance the efficiency and the rate of sulfur vulcanization in the presence of two other accelerators, i.e., N-cyclohexyl-2-benzothiazole sulfenamide (CBS) and/or 1,3-diphenylguanidine (DPG). Furthermore, the possibility of reducing the amount of zinc oxide (ZnO) and the elimination of CBS and DPG from elastomer compounds using dibenzyldithiocarbamate accelerator was tested. Dibenzyldithocarbamate derivative applied with other accelerators (especially CBS) effectively enhances the efficiency of SBR vulcanization by reducing the optimal vulcanization time and increasing the crosslink density of the vulcanizates despite the lower amount of ZnO. Moreover, vulcanizates with dibenzyldithocarbamate demonstrate higher tensile strength while having a smaller content of CBS or DPG compared to the reference SBR composites. Thus, the synergistic effect of dibenzydithiocarbamate derivative on the vulcanization and performance of SBR was confirmed. Furthermore, dibenzyldithocarbamate derivative enables the amount of ZnO to be reduced by 40% without harmful influence on the crosslink density and performance of the vulcanizates. Finally, it is possible to replace CBS with a dibenzyldithiocarbamate derivative without the crosslink density and tensile strength of the vulcanizates being adversely affected, while improving their resistance to thermo-oxidative aging.

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“…An accelerated aging test is conducted by intensifying the factors that accelerate aging by using laboratory equipment to create conditions that exceed the normal service range [ 3 , 4 , 5 , 10 ]. The service life is predicted by modeling the changes in important mechanical properties, including the shore hardness, tension, impact, modulus, thermal decomposition, compression set (CS), and fatigue, under accelerated aging and setting reliability criteria [ 3 , 4 , 5 , 6 , 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Durability and Service Life Prediction of Fluorocarbon Elastomer under Thermal Environments

Lee

Kim

et al. 2022

Polymers

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This study investigated the service life prediction of fluorocarbon elastomers that are used in automotive vapor fuel hoses under thermal environments. The changes in mechanical properties such as the tensile strength, elongation, compression set (CS), and hardness according to thermal aging were investigated for two types of ternary fluoroelastomers. Destructive tests of the tensile strength and elongation showed large variations in the mechanical properties under the same condition because there is no continuity of samples. In contrast, nondestructive tests of the CS and hardness showed little variations in the mechanical properties under the same condition. The elongation, CS, and hardness were selected as the physical parameters for service life prediction as they showed a tendency according to the aging temperature, which is an accelerating factor. The effective activation energy derived using each physical parameter was 74.91–159.6 kJ mol−1, and the service life was 17.8–140 × 103 h based on B10. In this study, hardness, which has a small deviation between samples, is considered appropriate as mechanical parameter for predicting the service lifetime.

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Elastic Properties of Polychloroprene Rubbers in Tension and Compression during Ageing

Cited by 28 publications

References 33 publications

Temperature Dependent Mechanical Properties of Natural and Synthetic Rubber in Practical Structures

Temperature Dependent Mechanical Properties of Natural and Synthetic Rubber in Practical Structures

The Synergistic Effect of Dibenzyldithiocarbamate Based Accelerator on the Vulcanization and Performance of the Silica-Filled Styrene–Butadiene Elastomer

Durability and Service Life Prediction of Fluorocarbon Elastomer under Thermal Environments

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