{"id":1659,"date":"2023-11-02T17:00:26","date_gmt":"2023-11-02T16:00:26","guid":{"rendered":"https:\/\/www.buser-ot.ch\/?page_id=1659"},"modified":"2024-08-21T13:22:55","modified_gmt":"2024-08-21T11:22:55","slug":"pekk-un-revetement-voyage-vers-mars","status":"publish","type":"page","link":"https:\/\/www.buser-ot.ch\/fr\/specialites\/pekk-un-revetement-voyage-vers-mars\/","title":{"rendered":"PEKK: un rev\u00eatement voyage vers Mars"},"content":{"rendered":"<!--blockstudio\/blockstudio\/banner--><div id=\"banner-aa3528bcacd53d5154b2abc8cd19cea0\" class=\"px-banner  \">\n\t\t\t<div class=\"image\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2516\" height=\"1073\" src=\"https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922.jpg\" class=\"attachment-Full Size size-Full Size\" alt=\"k2 e1697119355922\" srcset=\"https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922.jpg 2516w, https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922-300x128.jpg 300w, https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922-1024x437.jpg 1024w, https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922-768x328.jpg 768w, https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922-1536x655.jpg 1536w, https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/k2-e1697119355922-2048x873.jpg 2048w\" sizes=\"(max-width: 2516px) 100vw, 2516px\">\t\t\t\n\t\t<\/div> <!-- End Media wrapper -->\n\t\t\n\t<div class=\"text\">\n\t<div>\n\n<h1 class=\"wp-block-heading\">PEKK: un rev&ecirc;tement voyage vers Mars<\/h1>\n\n<\/div>\n\n\t<\/div>\n\n<\/div>\t\t\n\n\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Un des principaux objectifs du gros projet international ExoMars est de scanner le sol martien et de chercher des traces de vie pass\u00e9es et actuelles. Pour l\u2019atteindre, l\u2019\u00e9quipe CaSSIS de l\u2019Universit\u00e9 de Berne a d\u00e9velopp\u00e9 un t\u00e9lescope sp\u00e9cial.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.buser-ot.ch\/wp-content\/uploads\/2023\/09\/cru-cad-1024x916.png\" alt=\"\" class=\"wp-image-898\" style=\"width:527px;height:351px\" width=\"527\" height=\"351\"\/><\/figure><\/div>\n\n\n<p><em><em>Droit d\u2019auteur: \u00c9quipe CaSSIS de l\u2019Universit\u00e9 de Berne<\/em><\/em><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Un composant essentiel de cet appareil exige non seulement un rev\u00eatement sp\u00e9cial, mais aussi un sp\u00e9cialiste capable d\u2019appliquer et de tester cette couche conjointement avec l\u2019Universit\u00e9 de Berne.<\/p>\n\n\n\n<p>L\u2019entreprise Buser Oberfl\u00e4chentechnik AG est l\u2019un des fournisseurs leaders de syst\u00e8mes de rev\u00eatement complexes. En plus de ses vastes connaissances, elle jouit \u00e9galement d\u2019une flexibilit\u00e9 suffisante pour pouvoir rev\u00eatir des pi\u00e8ces individuelles et penser \u00e0 des t\u00e2ches complexes. Avec l\u2019\u00e9quipe CaSSIS, les sp\u00e9cialistes de l\u2019entreprise testent le syst\u00e8me de rev\u00eatement PEKK utilis\u00e9 pour le t\u00e9lescope de la mission ExoMars.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h5 class=\"wp-block-heading\"><strong><strong><strong>Propri\u00e9t\u00e9s du produit<\/strong><\/strong><\/strong><\/h5>\n\n\n\n<p>Le PEKK (poly\u00e9therc\u00e9tonec\u00e9tone) offre de grands avantages par rapport aux rev\u00eatements PEEK. Les pi\u00e8ces subissent en effet une contrainte thermique 70&nbsp;\u00b0C inf\u00e9rieure \u00e0 celle du PEEK lors du proc\u00e9d\u00e9 de rev\u00eatement, ce qui pr\u00e9serve le substrat. Il est \u00e9galement possible de rev\u00eatir les substrats ne r\u00e9sistants pas \u00e0 la temp\u00e9rature de traitement du PEEK avec du polyaryl\u00e9therc\u00e9tone.<\/p>\n\n\n\n<p>Le PEKK pr\u00e9sente une force de r\u00e9traction beaucoup plus faible que celle du PEEK, permettant donc de rev\u00eatir les pi\u00e8ces de forme complexe. Les propri\u00e9t\u00e9s m\u00e9caniques et la grande r\u00e9sistance aux produits chimiques sont relativement similaires \u00e0 celles du PEEK. Au contraire, les premi\u00e8res propri\u00e9t\u00e9s sont parfois significativement meilleures.<\/p>\n\n\n\n<p>Le nouveau PEKK utilis\u00e9 chez Buser Oberfl\u00e4chentechnik AG est certifi\u00e9 par la FDA et l\u2019UE pour une utilisation en contact direct avec les aliments.<\/p>\n\n\n\n<p><a href=\"http:\/\/www.cassis.unibe.ch\/\" rel=\"noreferrer noopener\" target=\"_blank\">http:\/\/www.cassis.unibe.ch\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un des principaux objectifs du gros projet international ExoMars est de scanner le sol martien et de chercher des traces de vie pass\u00e9es et actuelles. Pour l\u2019atteindre, l\u2019\u00e9quipe CaSSIS de l\u2019Universit\u00e9 de Berne a d\u00e9velopp\u00e9 un t\u00e9lescope sp\u00e9cial. Droit d\u2019auteur: \u00c9quipe CaSSIS de l\u2019Universit\u00e9 de Berne Un composant essentiel de cet appareil exige non seulement [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":1674,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"acf":[],"yoast_head":"<title>PEKK: un rev\u00eatement voyage vers Mars - Buser Oberfl\u00e4chentechnik AG<\/title>\n<meta name=\"description\" content=\"PEKK: Un rev\u00eatement de haute qualit\u00e9 pour des conditions extr\u00eames. 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