Development of an O-ring from NR/EPDM filled silica/CB hybrid filler for use in a solid oxide fuel cell testing system

Chea, Sophos; Luengchavanon, Montri; Anancharoenwong, Ekasit; Techato, Kuaanan; Jutidamrongphan, Warangkana; Chaiprapat, Sumate; Niyomwas, Sutham; Marthosa, Sutida

doi:10.1016/j.polymertesting.2020.106568

Cited by 8 publications

(11 citation statements)

References 27 publications

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“…Blend morphology is a crucial element that shows the degree to which the blends are compatible (Abdel-Aziz and Attia, 2020; Chea et al , 2020). The composition of the blends is the key factor that determines the final morphology.…”

Section: Resultsmentioning

confidence: 99%

Studies on swelling behavior, mechanical and thermal properties of ternary rubber blend composites in the presence of compatibilizers

Abdelsalam

El‐Sabbagh

Mohamed

et al. 2022

PRT

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Purpose This study aims to investigate the swelling behavior, mechanical and thermal properties of ternary rubber blend composites prepared by melt blending based on carbon black (CB)-filled natural rubber (NR)/styrene-butadiene rubber (SBR)/nitrile butadiene rubber (NBR) blends, containing a variety of compatibilizers. Various compatibilizers, maleic acid anhydride (MAH), prepared emulsion and adhesion system (HRH) were used. A series of NR/SBR/NBR blends at a 30/30/40 blend ratio reinforced with 45 phr of CB were prepared using the master-batch method. Design/methodology/approach Thermal aging properties of the composites characterized by their aging coefficient and retention in tensile and elongation at break (E.B. %). Thermal degradation of ternary rubber blend composites based on melt blending has been studied using thermogravimetric analysis. Findings The swelling coefficient decreased with increased compatibilizer loading. Results also showed that the tensile strength and E.B. (%) decreased with aging over the entire aging period. Additionally, the addition of compatibilizers into the ternary rubber blend composite had slightly improved the thermal stability. Research limitations/implications Interactions between the different components of blends at the interfaces have a high impact on the interfacial properties of the rubber blend. Practical implications Compatibilizers significantly improve the properties of the resulting composites with the loading of investigated compatibilizers because of the uniform dispersion of CB in the rubber matrix. Social implications Using blends in the rubber industry led to the high-efficiency production of low-cost products. Originality/value The rubber blending has a significant positive effect on a wide range of applications such as structural applications, aerospace, military, packaging, tires and biomedical, so improving the compatibility of blends will make new materials suitable for new applications.

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Section: Resultsmentioning

confidence: 99%

Studies on swelling behavior, mechanical and thermal properties of ternary rubber blend composites in the presence of compatibilizers

Abdelsalam

El‐Sabbagh

Mohamed

et al. 2022

PRT

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“…Several ratios between 99.99% methane (CH4) and 99.99% Nitrogen (N2) gas were used to prepare different methane gas concentrations. The pressure was kept constant at 60 psi or around 0.5 L/min (Chea et al 2020) and gases were mixed using metering valves from Swagelok (Cleveland, OH, USA). The biogas was collected from a palm oil factory (Chumphon) and rubber cooperative fund in the (Songkhla) south of Thailand.…”

Section: Analytical Proceduresmentioning

confidence: 99%

Analysis of electric signals from micro-solid oxide fuel cell sensors detecting methane biogas

Ninwijit

Palamnit

Luengchavanon

et al. 2021

BioRes

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Micro-solid oxide fuel cells (SOFC) sensors prepared via depositing a thin film BYCF (10 wt% [Ba0.95FeY0.05O2.8] + 90 wt% [Co2O3]) – GDC20 (Gd0.20Ce0.80O1.95) cathode and NiO-GDC20 (Gd0.20Ce0.80O1.95) anode on a GDC20 electrolyte layer were operated at 800 °C. The structure, which receives only biogas, was formed into 15-mm pellets with only one side for detecting methane (CH4). The detection of 40% to 99.99% CH4 provided a high level of accuracy compared with 10% to 30% CH4. The biogas (60% CH4) from the Oil Palm Industry and Rubber Cooperative Fund, Thailand, increased remarkably at voltage levels of 20 to 21 mV. The electrical signal from the micro-SOFC sensor corresponded to the quantity of CH4, with the chemical reaction of the dry reforming activities (NiO and Co3O4) highly catalyzed and transformed from CH4 to H2, thus generating electrons. It was concluded that the micro-SOFC sensor is suitable for detecting methane measurements at intermediate temperatures, with the ceramic structure offering low degradation compared with metal sensors.

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“…The producers of these elastomer seals define the options and limits of their applications. New elastomer materials for a certain application, namely, composite-based nanoparticle fillers, have been constantly developed [1,2]. Although many decades have passed since the first practical application of the vulcanization of rubber, intensive research in the area of sophisticated methods affecting the chemical process of vulcanization is still underway [3].…”

Section: Introductionmentioning

confidence: 99%

Research on the Material Compatibility of Elastomer Sealing O-Rings

et al. 2022

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Significant attention has been paid to combustion engines for the utilization of new liquid fuels and their testing at the present. Research activities in ensuring the optimum function of the engine by watching sealing and distribution rubber elements, which are part of fuel systems, should be an integral part of fuels research. When evaluating fuels utilization in combustion engines, the issue has to be judged in a complex. However, when using biofuels in combustion engines, it is not always simple owing to the different degradation properties of these products. Elastomer material is not entirely resistant to various types of fuels. More or less, it is possible to expect changes in its mechanical properties. For the evaluation of the functionality of elastomer sealing elements based on ACM, HNBR and FVMQ type O-rings with pure and blended fuels, the evaluation of changes in mass, hardness Shore A, permanent deformation CS, tensile strength TS and deformation Eb after immersion with the tested fuel is mainly used. Permanent changes were found by the tests. The degradation of elastomer O-rings was more pronounced for the tested fuels containing ethanol, iso-butanol, n-butanol, methanol and dodecanol. HVO 100 fuel containing hydrotreated vegetable oil did not show significant degradation of elastomer O-ring seals. Of the O-rings tested, the FVMQ type O-rings showed the best performance in terms of material compatibility for all fuels tested.

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Development of an O-ring from NR/EPDM filled silica/CB hybrid filler for use in a solid oxide fuel cell testing system

Cited by 8 publications

References 27 publications

Studies on swelling behavior, mechanical and thermal properties of ternary rubber blend composites in the presence of compatibilizers

Studies on swelling behavior, mechanical and thermal properties of ternary rubber blend composites in the presence of compatibilizers

Analysis of electric signals from micro-solid oxide fuel cell sensors detecting methane biogas

Research on the Material Compatibility of Elastomer Sealing O-Rings

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