The effect of temperature on the properties of the NBR/PVC blend exposed to ethanol fuel and different gasolines

Maciel, Adriana Veloso; Machado, Juliana Costa; Pasa, Vânya Márcia Duarte

doi:10.1016/j.fuel.2013.05.101

Cited by 20 publications

(8 citation statements)

References 17 publications

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“…Maciel et al (2013) observed that pure ethanol resulted in a decrease in weight, different from the one observed for gasoline samples with ethanol (gasohol).…”

Section: Volatilitycontrasting

confidence: 68%

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The Brazilian Experience With Ethanol Fuel: Aspects of Production, Use, Quality and Distribution Logistics

Belincanta

Alchorne

Silva

2016

Braz. J. Chem. Eng.

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-The reduction in the availability of fossil fuel increased the search for alternative fuel sources (for example, ethanol). In the Brazilian market, light duty vehicles can be fueled with gasohol (18 up to 27.5 %v/v of anhydrous ethanol in gasoline) and/or hydrous ethanol. To minimize the risk of water-induced phase separation of gasoline-ethanol blends, anhydrous ethanol is blended into gasoline at the distribution terminal, rather than distributing it through pipelines. Pure ethanol can be distributed through pipelines or trucks, and in pipeline cases almost all are not exclusive. To monitor the ethanol quality, several fuel sampling points are indicated: storage tanks, pipelines, and ship, if applicable. For these samples, it is important to evaluate the following parameters indicative of product quality: hydrocarbon and water amount, color, conductivity, and acidity. Monitoring ethanol storage, transport and distribution is important to maintain the ethanol quality until the final consumer.

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“…Maciel et al (2013) observed that pure ethanol resulted in a decrease in weight, different from the one observed for gasoline samples with ethanol (gasohol).…”

Section: Volatilitycontrasting

confidence: 68%

“…For the hardness, mass variation, tensile strength and E-modulus results, it was observed for all samples that the changes occurred with 7 days of immersion and, after that, the results remained almost unchanged. Maciel et al (2013) indicated that this kind of change occurs by the first day and, after that, remains almost constant.…”

Section: Volatilitymentioning

confidence: 93%

The Brazilian Experience With Ethanol Fuel: Aspects of Production, Use, Quality and Distribution Logistics

Belincanta

Alchorne

Silva

2016

Braz. J. Chem. Eng.

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“…In this research, the compound of NBR and poly(vinyl chloride) (PVC) (the blend ratio is 70:30, wt.‐%) was selected to prepare crosslinked rubber composites with hindered phenol AO‐80, which would greatly improve the damping and mechanical properties of the NBR/PVC compound. NBR/PVC is a miscible physical composite of commercial importance . Both the nitrile groups in NBR and the chlorine atoms in PVC have strong polarities, which could form strong intermolecular interaction with AO‐80 and greatly improve the damping and mechanical properties …”

Section: Introductionmentioning

confidence: 99%

Microstructure and Dynamic Properties Analyses of Hindered Phenol AO‐80/Nitrile‐Butadiene Rubber/Poly(vinyl chloride): A Molecular Simulation and Experimental Study

Song

Zhao

Chan

et al. 2014

Macro Theory & Simulations

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A combined study of experimental and molecular dynamics (MD) simulation methods is presented for hindered phenol AO-80/nitrile-butadiene rubber/poly(vinyl chloride) (AO-80/NBR/PVC) composites with different AO-80 contents to establish the microstructure-damping property relations. MD simulation found that the AO-80/NBR/PVC composite (abbreviated as AO-80/NBVC) with an AO-80 content of 99 phr had the largest hydrogen bonds (H-bonds) and highest binding energy, indicating a good compatibility between NBR and AO-80 and good damping performance of AO-80/NBVC composites. Experimental results from SEM, DSC, and DMA were in good agreement with the MD simulation results. The tensile test results showed that the AO-80/NBVC composite with an AO-80 content of 99 phr had high tensile strength because of the strong H-bonds of the composites and the disintegration and reintegration of the H-bonds. The MD simulation technique proves to be a promising tool for the design and prediction of high damping properties of advanced composites in a microscopic view.

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“…Nowadays, elastomers and rubber are used in fuel systems of automobiles, mainly as seals, because of their intrinsic properties, chemical resistance, and elasticity . Examples of the rubber used for automotive applications include fluoroelastomers (FKM), acrylonitrile‐butadiene rubber (NBR), and hydrogenated nitrile butadiene rubber (HNBR).…”

Section: Introductionmentioning

confidence: 99%

“…Based on updated literature , the properties of NBR/HNBR blends are not fully documented, especially under immersion into gasohol oils. The purpose of this study was to recommend a suitable ratio of NBR to HNBR for optimum cure and mechanical properties and swelling‐resistant properties before and after immersion into gasohol oils from low‐ to high‐ethanol contents (referred to as E10, E20, and E85).…”

Section: Introductionmentioning

confidence: 99%

Swelling and mechanical properties of (acrylonitrile‐butadiene rubber)/(hydrogenated acrylonitrile‐butadiene rubber) blends with precipitated silica filled in gasohol fuels

Promchim

Kanking

Niltui

et al. 2014

Vinyl Additive Technology

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This work studied the effects of hydrogenated acrylonitrile-butadiene rubber (HNBR) and precipitated silica (PSi) loadings in acrylonitrile-butadiene rubber (NBR) filled with 60 parts per hundred of rubber (phr) of carbon black (CB) for oil-resistant seal applications in contact with gasohol fuel. The cure characteristics, mechanical properties, and swelling behavior of HNBR/NBR blends reinforced with PSi before and after immersion in ethanol-based oils (E10, E20, and E85) were then monitored. This work studied the effects of PSi loading in rubber compounds on the mechanical properties of the rubber blends. The results suggested that the scorch time of CB-filled NBR/HNBR was not affected by HNBR loading, but the cure time, Mooney viscosity, and torque difference increased with HNBR content. The swelling of the blends in E85 oil were relatively low compared with those in E10 and E20 oils. The recommended NBR/HNBR blend ratio for oilresistant applications was 50/50. Tensile strength and elongation at break before and after immersion in gasohol oils increased with HNBR loading, and the opposite effect was found for tensile modulus and hardness. PSi filler had no effect on scorch time, but decreased the cure time of the blends. The swelling level of the blends slightly decreased with increasing PSi content. The recommended silica content for optimum reinforcement for black-filled NBR/HNBR blend at 50/50 was 30 phr. The results in this work suggested that NBR/HNBR blends reinforced with 60 phr of CB and 30 phr of silica could be potentially used for rubber seals in contact with gasohol fuels. J. VINYL ADDIT. TECHNOL.,

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The effect of temperature on the properties of the NBR/PVC blend exposed to ethanol fuel and different gasolines

Cited by 20 publications

References 17 publications

The Brazilian Experience With Ethanol Fuel: Aspects of Production, Use, Quality and Distribution Logistics

The Brazilian Experience With Ethanol Fuel: Aspects of Production, Use, Quality and Distribution Logistics

Microstructure and Dynamic Properties Analyses of Hindered Phenol AO‐80/Nitrile‐Butadiene Rubber/Poly(vinyl chloride): A Molecular Simulation and Experimental Study

Swelling and mechanical properties of (acrylonitrile‐butadiene rubber)/(hydrogenated acrylonitrile‐butadiene rubber) blends with precipitated silica filled in gasohol fuels

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