The blending of NBR/EPDM with montmorillonite as compatibilizer: The effect of different accelerator

Mayasari, Hesty Eka; Wirapraja, Agung Yanuar; Setyorini, Ike

doi:10.20543/mkkp.v36i1.5951

Cited by 6 publications

(7 citation statements)

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“…This observation suggests that the polar moieties on GO graphene sheets essentially act more as cure accelerators in a polar environment than as retarders when in nonpolar rich phase. The curing property (CRI) obtained in the current results outperformed those recently reported by Tawfic and Hussein [17], Mayasari et al [18], and Paran et al [19] who adopted open two-roll mixing in processing elastomers. Therefore, the solution mixing method has proven to be an effective method for processing elastomeric blends consisting of different polarities, even in the absence of compatibilizer.…”

Section: Chemical Analysis Of Nanoparticles and Rubbersupporting

confidence: 78%

“…Furthermore, the t 90 shot up for compounds which contained higher content of E The slow sulfur curing behavior of the E-rich systems is due to the overall saturated nature of E, and therefore, E elastomers are cured using peroxide curatives [35,51,55]. However, the unsaturated portion of the diene of E makes sulfur curing possible [18,19]. Therefore, an effective crosslinking of E system by sulfur crosslinker may depend on the content of ENB in the E structure.…”

Section: Chemical Analysis Of Nanoparticles and Rubbermentioning

confidence: 99%

“…In recent times, complementing elastomers with additives in their desired ratios have observed appreciable enhancement in their properties which could not be attained when single matrices are used [17][18][19][20][21]. However, the miscibility of the elastomers (N/E) is quite challenging and often addressed with the use of compatibilizers and plasticizers.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Graphene Oxide and Reduced Graphene Oxide on the Mechanical and Dielectric Properties of Acrylonitrile-Butadiene Rubber and Ethylene-Propylene-Diene-Monomer Blend

Mensah

Konadu

Agyei‐Tuffour

2022

International Journal of Polymer Science

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The composites of properties of ethylene-propylene-diene-monomer (E) and acrylonitrile butadiene-rubber (N) composites of graphene oxide (GO) and reduced graphene oxide (G) were prepared by a combination of solution and open-roll method. They include single matrices (EGO and EG) and blends N/E, 20 part of hundreds of rubber (phr)/80 phr (A), 80 phr/20 phr (B), and 50 phr/50 phr(C) blend containing GO and G. The physico-mechanical properties including vulcanization, tensile, glass transition temperature ( T g ), and dielectric spectroscopic properties were evaluated. The N-rich systems reinforced with GO, cured faster than the E-rich systems. Also, N-rich systems obtained the highest dielectric constant ɛ ′ , especially when GO and G were incorporated, for example, NG and N-GO obtained 317 and 283% increment in ɛ ′ than EG and EGO, respectively. In terms of tensile properties, AGO exhibited the highest strength and elongation at break properties (%). Therefore, solution mixing technique of rubber blends filled with nanoinclusion can be achieved with the tendency of reducing cost without the use of compatibilizer and still maintain the integrity of the physical properties of the final product. The result obtained therefore shows that the current compositions can find various applications in oil/gas sealants, heat-resistant applications, and energy storage materials with minimal losses.

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Section: Chemical Analysis Of Nanoparticles and Rubbersupporting

confidence: 78%

Section: Chemical Analysis Of Nanoparticles and Rubbermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Graphene Oxide and Reduced Graphene Oxide on the Mechanical and Dielectric Properties of Acrylonitrile-Butadiene Rubber and Ethylene-Propylene-Diene-Monomer Blend

Mensah

Konadu

Agyei‐Tuffour

2022

International Journal of Polymer Science

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“…Considering the low cost and short vulcanization period of NBR/EPDM blends, it could be an appropriate rubber material for the production of seismic isolation rubber bearings. However, NBR/EPDM rubber composites cannot be directly used alone as a rubber matrix material for industrial applications [53]. In [54], a series of amorphous EPDM polymer systems were established using all-atom molecular dynamics simulations to elucidate the effects of chemical composition and crosslink density on the linear and nonlinear viscoelasticity of EPDM elastomer in glass and glass-rubber transition regimes under different strain rates.…”

Section: Epdm Compositesmentioning

confidence: 99%

“…It was further found that ENR vulcanized by 5 phr of 2402 PF had the broadest damping temperature range of 147.6 • C (−47.6-100 • C), as shown in Figure 31. In [53], the effects of different accelerators (DPG, MBT, CBS, TMTD, and ZDEC) on the vulcanization characteristics and the mechanical properties of montmorillonite-solubilized NBR/EPDM rubber composites were studied. Through a comparison of scorch time and optimal cure time of different accelerators, it was found that tetramethylthiuram disulfide (TMTD) was an ideal accelerator for the improvement of the vulcanization characteristics of the material.…”

Section: Vulcanization Systemmentioning

confidence: 99%

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Chen

Song²,

Guan³

2022

Polymers

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At present, high-damping rubber materials, widely used in the field of engineering seismic isolation, generally have the problems such as narrow effective damping temperature range, low damping loss factor and strong temperature dependence, which lead to prominent dependence of temperature and load conditions of the isolation performance of high-damping rubber isolation bearings. Research and development of high-performance high-damping rubber materials with broad effective damping temperature range, high damping loss factor and weak temperature dependence are very urgent and necessary to ensure the safety of the seismic isolation of engineering structures. This paper mainly reviews the recent progress in the research and development of high-damping rubber materials using nitrile butadiene rubber (NBR), epoxidized natural rubber (ENR), ethylene propylene diene rubber (EPDM), butyl rubber (IIR), chlorinated butyl rubber (CIIR), and bromine butyl rubber (BIIR). This is followed by a review of vulcanization and filler reinforcement systems for the improvement of damping and mechanical properties of high-damping rubber materials. Finally, it further reviews the constitutive models describing the hyperelasticity and viscoelasticity of rubber materials. In view of this focus, four key issues are highlighted for the development of high-performance high-damping rubber materials used for high-damping rubber isolation bearings.

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Rice husk fibers and their extracted silica as promising bio-based fillers for EPDM/NBR rubber blend vulcanizates

Eissa,

Botros,

Diab

et al. 2023

Clean Techn Environ Policy

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Bio-based natural wastes could be considered eco-friendly alternatives to conventional fillers for enhancing the properties and reducing the cost of final rubber products. Thus, in the present research, EPDM/NBR rubber blend composites filled with kaolin and mixed with rice husk fibers (RHFs) were prepared. Homogeneity of the EPDM/NBR blends was improved by the incorporation of maleic anhydride (MAH) as a compatibilizing agent (1 phr), as evidenced by scanning electron microscopy (SEM). Of all EPDM/NBR blend ratios investigated, the 25/75 blend revealed good mechanical properties, thermal stability, and the least weight swell at equilibrium (Q%) in motor oil and brake fluid. EPDM/NBR/kaolin (25/75/30) blend vulcanizates containing RHFs at various loadings demonstrated a significant improvement in swelling resistance, primarily in motor oil and brake fluid, accompanied by a slight reduction in the mechanical properties at high RHFs content. That was complemented by the enhancement of thermal stability of the rubber blends, as demonstrated by TGA analysis. Among the filler types investigated (RHFs, silica ash (SA), rice husk silica (RHS), and kaolin), RHFs exhibited the best swelling resistance of the composite vulcanizates in motor oil and brake fluid. In addition, RHS could be used successfully as a supporting filler for carbon black-reinforced EPDM/NBR composite vulcanizates because it enhanced their thermal stability and swelling resistance in the motor oil. Graphical Abstract

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The blending of NBR/EPDM with montmorillonite as compatibilizer: The effect of different accelerator

Cited by 6 publications

References 0 publications

Effects of Graphene Oxide and Reduced Graphene Oxide on the Mechanical and Dielectric Properties of Acrylonitrile-Butadiene Rubber and Ethylene-Propylene-Diene-Monomer Blend

Effects of Graphene Oxide and Reduced Graphene Oxide on the Mechanical and Dielectric Properties of Acrylonitrile-Butadiene Rubber and Ethylene-Propylene-Diene-Monomer Blend

Research and Development of High-Performance High-Damping Rubber Materials for High-Damping Rubber Isolation Bearings: A Review

Rice husk fibers and their extracted silica as promising bio-based fillers for EPDM/NBR rubber blend vulcanizates

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