| 000 | 02412nab a2200253 4500 | ||
|---|---|---|---|
| 005 | 20260520003109.0 | ||
| 008 | 260224s2015 xxu ing | ||
| 041 | _aInglés | ||
| 245 | 0 | 0 |
_aPermeability of EVOH Barrier Material Used in Automotive Applications _bMetrology Development for Model Fuel Mixtures |
| 260 |
_a _b _cmar./abr. 2015 |
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| 270 | _a21/09/2015 ; 21/09/2015 | ||
| 300 | _a13 p. ; 353-366 | ||
| 520 | _aTranscripción del resumen del autor: EVOH (Ethylene-Vinyl Alcohol) materials are widely used in automotive applications in multi-layer fuel lines and tanks owing to their excellent barrier properties to aromatic and aliphatic hydrocarbons. These barrier materials are essential to limit environmental fuel emissions and comply with the challenging requirements of fast changing international regulations. Nevertheless, the measurement of EVOH permeability to model fuel mixtures or to their individual components is particularly difficult due to the complexity of these systems and their very low permeability, which can vary by several orders of magnitude depending on the permeating species and their relative concentrations. This paper describes the development of a new automated permeameter capable of taking up the challenge of measuring minute quantities as low as 1 mg/(m2.day) for partial fluxes for model fuel mixtures containing ethanol, i-octane and toluene at 50°C. The permeability results are discussed as a function of the model fuel composition and the importance of EVOH preconditioning is emphasized for accurate permeability measurements. The last part focuses on the influence of EVOH conditioning on its mechanical properties and its microstructure, and further illustrates the specific behavior of EVOH in presence of ethanol oxygenated fuels. The new metrology developed in this work offers a new insight in the permeability properties of a leading barrier material and will help prevent the consequences of (bio)ethanol addition in fuels on environmental emissions through fuel lines and tanks. | ||
| 581 | _a2 | ||
| 773 | 0 |
_tOil and Gas Science and Technology _g70 |
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| 942 | _cARTICULO | ||
| 100 | 1 |
_aZhao, Jing _942477 |
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| 100 | 1 |
_aKanaan, Charbel _954951 |
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| 100 | 1 |
_aClément, Robert _954952 |
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| 100 | 1 |
_aBrulé, Benoit _954953 |
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| 100 | 1 |
_aLenda, Henri _954954 |
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| 100 | 1 |
_aJonquiéres, Anne _954955 |
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| 999 |
_c189226 _d189226 |
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