Tech Service: FEPM type fluoroelastomers for charging cables
FEPM type fluoroelastomers are shown to improve the performance of high voltage automotive charging cables.
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HT-ACM elastomers: A high performance alternative to ethylene acrylic elastomers
Whether it is a requirement for high heat resistance for hybrid-electric vehicles, or sealing of high performance lubricants in battery electric drivetrains, the need for a reliable supply of high performance elastomers like ACM will continue.
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How theories of adhesion can be applied to EPDM rubber composites
by Francesca Messaggi, Salvatore Balestrieri, Patrizia Piancastelli and Nicola Latorraca, Versalis S.p.A. Fundamental concepts are taken from the adhesives world
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Patents for April
Patent as compiled by the editors of Rubber World for the April issue
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Service life determination of EPDM o-rings used in a fire extinguisher
The Canadian Coast Guard is considering the use of EPDM o-rings as a critical component of the water fire extinguishing piping system, with the expectation that they last at least 40 years.
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Effect of accelerator mixing ratio on curing characteristics of EPDM gasket materials
Due to the long service life of the washing machine, all polymer parts, especially rubber parts, need to have a service life of at least 10 years, which means excellent resistance to aging.
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Custom Mixing, Services directory for 2022
The following directory lists custom services suppliers. The first part lists custom rubber mixers along with plant locations, equipment, mixing capabilities and whether technical service and/or recipe development are offered. A directory of companies that offer various custom services to the rubber industry follows.
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Patents for March
Patents for the Rubber Industry as compiled by the editors of Rubber World for April
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Evaluation of sustainable bituminous coal in elastomer applications
Austin Black 325 is a finely divided (below 325 mesh) powder produced from high carbon content, low volatility, sustainable bituminous coal. It has different properties compared to carbon black, including a lower specific gravity of 1.30 versus 1.80, a platy ground structure versus the reinforcing morphology of carbon black (figures 1 and 2), and a lower surface area in comparison to carbon black. Beyond its carbon composition, it is more similar in structure to platy fillers like clay and talc. The specific gravity comparison to other platy minerals (1.30 versus 2.50) provides economical and efficiency gains.
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Rheological and mechanical properties of masticated natural rubber and compounds
NR is usually masticated for viscosity reduction through breakdown of the long molecular chains to facilitate subsequent processing steps (e.g., extrusion and calendering) and improve rheological properties, such as die swell, shrinkage and building tack.
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