Contaminated plastics in a closed material loop / Jörg Woidasky in KUNSTSTOFFE PLAST EUROPE, Vol. 95, N° 5/2005 (05/2005)

[article]  inKUNSTSTOFFE PLAST EUROPE > Vol. 95, N° 5/2005 (05/2005) . - p. 104-106 Titre : Contaminated plastics in a closed material loop Type de document : texte imprimé Auteurs : Jörg Woidasky, Auteur ; Thomas Hirth, Auteur ; Peter Eyerer, Auteur Année de publication : 2005 Article en page(s) : p. 104-106 Langues : Anglais (eng) Index. décimale : 668.4 Plastiques, vinyles Résumé : Polyethylene tanks - A consortium of eight companies and four research institutes has developed a process for channelling the material used for heating oil tanks and automotive plastic fuel tanks into a closed material loop in a research project sponsored by the German Federal Ministry of Education and Research. The soiling caused by the penetration of hydrocarbons is removed in an environmentally-compatible and cost-efficient manner. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7486 [article]

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Laser sintering of high temperature resistant polymers with carbon black additives / T. Wagner in INTERNATIONAL POLYMER PROCESSING, Vol. XIX, N° 4 (12/2004)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XIX, N° 4 (12/2004) . - p. 395-401 Titre : Laser sintering of high temperature resistant polymers with carbon black additives Type de document : texte imprimé Auteurs : T. Wagner, Auteur ; T. Höfer, Auteur ; S. Knies, Auteur ; Peter Eyerer, Auteur Année de publication : 2004 Article en page(s) : p. 395-401 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Selective laser sintering (SLS) experiments with polyetherketone (PEK) and polyetheretherketone (PEEK) powders are described. The absorption behaviour of the polymer powders has been investigated with respect to the content of carbon black as an IR-absorber in the range from 0.03 to 0.1 wt.%. Laser sintering process studies have been carried out at room temperature using a Q-switched Nd: YAG laser system. The sintering depths of single layer substrates have been determined according to the process parameters, such as laser power, scanning speed and hatch distance. These process parameters have been optimised with the goal of achieving good structural integrity of the substrate. The influence of melt viscosity has been determined by comparing PEEK powders of low and standard melt viscosity. Scanning electron micrographs show the morphology of the original polymer powders and the laser sintered specimens. On the basis of the experimental results a qualitative SLS mechanism is proposed to describe the energy transfer from the carbon black particles to the surrounding polymer powder. DOI : 10.3139/217.1846 En ligne : https://drive.google.com/file/d/1MRSNFsEXWGBBbgie9Zwc5uuLbYfqIUb-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3273 [article]

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Mechanical properties of isotactic polypropylene with oriented and cross-hatched lamellae structure / Armin Kech in INTERNATIONAL POLYMER PROCESSING, Vol. XV, N° 2 (06/2000)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XV, N° 2 (06/2000) . - p. 202-207 Titre : Mechanical properties of isotactic polypropylene with oriented and cross-hatched lamellae structure Type de document : texte imprimé Auteurs : Armin Kech, Auteur ; H.-C. Ludwig, Auteur ; B. Möginger, Auteur ; Peter Eyerer, Auteur ; J. deClaville Christiansen, Auteur Année de publication : 2000 Article en page(s) : p. 202-207 Note générale : Biliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : The mechanical properties of injection moulded unreinforced isotactic, polypropylene depend on the crystalline structure and lamellae orientation. Push-pull processing is an injection moulding technique that allows the user to produce parts with oriented structures. Mostly applied for short fibre reinforced thermoplastics in order to align fibres parallel to the flow direction, this technique can also be used to orient the polymeric matrix of LCP and polypropylene. A comparison of mechanical properties as well as investigations on morphology between the samples produced using conventional injection moulding and push-pull processing are presented trying to improve the knowledge about this so far rather unknown technique. Note de contenu : - MATERIALS - PRODUCTION OF SAMPLES - INVESTIGATIONS : Morphological investigations - Mechanical tests - Mechanical tests on injection moulded bars - Tensile creep tests DOI : 10.3139/217.1588 En ligne : https://drive.google.com/file/d/1ed9AajI9wnOOfZKR6QF_zlL4poHb35wn/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16063 [article]

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