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Identification of swelling/shrinking coefficients under CO2 on an FKM O-ring-Comparison with HNBR and influence of reinforcements on the matrices / Eric Lainé in MATERIAUX & TECHNIQUES, Vol. 110, N° 3 (2022)
[article]
Titre : Identification of swelling/shrinking coefficients under CO2 on an FKM O-ring-Comparison with HNBR and influence of reinforcements on the matrices Type de document : texte imprimé Auteurs : Eric Lainé, Auteur ; Jean-Claude Grandidier, Auteur ; Séverine A. E. Boyer, Auteur ; Benoit Omnès, Auteur ; Fanny Destaing, Auteur Année de publication : 2022 Article en page(s) : 17 p. Note générale : Bibliogr. Catégories : Caoutchouc
Composites
Copolymères butadiène-acrylonitrile hydrogénés
Gonflement (physique)
Joints toriques
PressionIndex. décimale : 678 Elastomères et produits élastomères Résumé : A better understanding of elastomers’ behavior during Rapid Gas Decompression (RGD) requires advanced knowledge of what is happening during gas sorption and desorption. This will offer to improve numerical simulation phenomena to consider a real environmental use of an O-ring, as for thermal applications. A previous experimental study developed testing protocols to investigate the performance of elastomeric O-rings. The non-contact measurement technique has been validated to identify the swelling and shrinking coefficients during sorption and desorption of carbon dioxide (CO2) from a Hydrogenated Nitrile Butadiene Rubber (HNBR) O-ring. The present work describes the effect of CO2 pressures on Fluorocarbon rubber (FKM) seals behavior coupled with temperature. To evaluate the effect of reinforcing the HNBR and FKM matrices with nanofillers, experimental tests were carried out and compared with those of the two elastomers without fillers. The four materials’ CO2 sorption and desorption coefficients are identified, and their swelling upon decompression is measured. It appears that HNBR is the best candidate under the applied service conditions. On the other hand, the nanofillers introduced in the elastomers may cause some early damages under RGD conditions. Note de contenu : - MATERIAL : Materials and sample - Experimental device - The technique of dilatation measurement on a seal - Protocol
- RESULTS AND DISCUSSION : CO2 sorption tests under isothermal conditions - CO2 desorption tests under isothermal conditions
- DISCUSSIONS : Saturation time - Swelling during CO2 depressurization - HNBR and FKM rubber matrices - Effects of 10GE reinforcements on HNBR matrix - Effects of 10GE reinforcements on FKM matrix - Sorption and desorption coefficients under CO2
- Table 1 : Composition of HNBR and FKM rubber
- Table 2 : Properties in the initial state obtained on each mixing reference
- Table 3 : Values of the maximum swelling elastomer seal (%) according to the initial (nominal) conditions applied.
- Table 4A : FKM10GE Deviations, CO2 swelling, and CO2 shrinking coefficients for the different CO2 sorption and CO2 desorption tests (2 temperatures and 3 CO2 pressures)
- Table 2A : FKM Deviations, CO2 swelling, and CO2 shrinking coefficients for the different CO2 sorption and CO2 desorption tests (2 temperatures and 3 CO2 pressures)
- Table 3A : HNBR10GE Deviations, CO2 swelling, and CO2 shrinking coefficients for the different CO2 sorption and CO2 desorption tests (2 temperatures and 3 CO2 pressures)
- Table 4A : FKM10GE Deviations, CO2 swelling, and CO2 shrinking coefficients for the different CO2 sorption and CO2 desorption tests (2 temperatures and 3 CO2 pressures)DOI : https://doi.org/10.1051/mattech/2022029 En ligne : https://www.mattech-journal.org/articles/mattech/pdf/2022/03/mt220001.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38160
in MATERIAUX & TECHNIQUES > Vol. 110, N° 3 (2022) . - 17 p.[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23626 - Périodique Bibliothèque principale Documentaires Disponible Positioning of a self-reinforced polyethylene in the industrial composites market / Coline Roiron in MATERIAUX & TECHNIQUES, Vol. 110, N° 3 (2022)
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Titre : Positioning of a self-reinforced polyethylene in the industrial composites market Type de document : texte imprimé Auteurs : Coline Roiron, Auteur ; Eric Lainé, Auteur ; Jean-Claude Grandidier, Auteur ; Nicolas Garois, Auteur ; Baptiste Voillequin, Auteur ; Cathie Vix-Guterl, Auteur Année de publication : 2022 Article en page(s) : 7 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres -- Moulage par compression
Composites à fibres -- Propriétés mécaniques
Composites à fibres de carbone -- Propriétés mécaniques
Composites à fibres de verre -- Propriétés mécaniques
Composites à fibres végétales -- Propriétés mécaniques
Composites thermoplastiques auto-renforcés
PolyéthylèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : Self-reinforced composites combine lightness and increased recyclability than conventional composites. To position them within the industrial composites market (conventional composites) and simultaneously highlight their potential in a given application context, it is necessary to analyze their mechanical properties for possible exploitation. For this purpose, compression molding has been used to manufacture different composites. In this short paper, the specific tensile properties of polyethylene matrix composites reinforced with glass, carbon, flax, and polyethylene fabrics, respectively, are compared at room temperature. The results give an excellent perspective to self-reinforced polyethylene. Note de contenu : - MATERIALS AND METHODS : Materials - Compression molding process - Tensile characterization - Tomographic analysis
- RESULTS AND DISCUSSION : Validation of the quality of the composites - Comparison of the specific properties of the composites used
- Table 1 : Properties of the different industrial fabrics used
- Table 2 : Details of the composition of the study materialsDOI : https://doi.org/10.1051/mattech/2022027 En ligne : https://www.mattech-journal.org/articles/mattech/pdf/2022/03/mt220011.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38159
in MATERIAUX & TECHNIQUES > Vol. 110, N° 3 (2022) . - 7 p.[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23626 - Périodique Bibliothèque principale Documentaires Disponible