{"id":397,"date":"2016-12-26T10:32:38","date_gmt":"2016-12-26T09:32:38","guid":{"rendered":"http:\/\/xtraflex.com\/\/technical-references\/ptfe\/"},"modified":"2018-03-15T14:38:54","modified_gmt":"2018-03-15T13:38:54","slug":"ptfe","status":"publish","type":"page","link":"https:\/\/xtraflex.com\/fr\/customer-information\/ptfe\/","title":{"rendered":"PTFE"},"content":{"rendered":"<p><strong>Le PTFE, c\u2019est quoi?<\/strong><\/p>\n<p>Le PTFE ou Polyt\u00e9trafluoro\u00e9thyl\u00e8ne a une structure mol\u00e9culaire bas\u00e9e sur une cha\u00eene d\u2019atomes de carbone. Mai, \u00e0 la diff\u00e9rence d\u2019autres fluoropolym\u00e8res, dans le PTFE, chaque atome de carbone est li\u00e9 \u00e0 deux atomes de fluor qui forment une cha\u00eene h\u00e9lico\u00efdale autour du carbone et le prot\u00e8ge.<\/p>\n<p><strong>Principales Propri\u00e9t\u00e9s<\/strong><\/p>\n<ul>\n<li>Large gamme de temp\u00e9rature de -70\u00b0C \u00e0 +260\u00b0C.<\/li>\n<li>Excellent isolant et bonnes propri\u00e9t\u00e9s di\u00e9lectriques.<\/li>\n<li>Extr\u00eamement faible coefficient de frottement, n\u2019adh\u00e8re pas.<\/li>\n<li>Chimiquement inerte, \u00e0 l\u2019exception d\u2019un petit nombre de substances et dans des conditions sp\u00e9ciales comme le sodium en \u00e9bullition, le fluor gazeux \u00e0 hautes pressions et temp\u00e9ratures.<\/li>\n<li>Le PTFE est hydrophobe (il n\u2019absorbe pas l\u2019humidit\u00e9).<\/li>\n<li>Excellente tenue aux UV Dur\u00e9e de stockage illimit\u00e9e.<\/li>\n<li>Excellente r\u00e9sistance \u00e0 la fatigue, Le PTFE d\u00e9passe toutes ses concurrents.<\/li>\n<li>Le PTFE est conforme \u00e0 la FDA 21 CFR 177.1550.<\/li>\n<li>Le PTFE antistatique est conforme \u00e0 la FDA 21 CFR 178.3297.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>The table below lists a generally accepted summary of properties that we believe to be reliable. Please note that many of these resins are produced in several varieties and property characteristics may vary. Therefore, determination of resin is dependent on the application and this table is only meant to serve as a general guideline.<\/p>\n<table>\n<tbody>\n<tr>\n<td>Properties<\/td>\n<td>ASTM or unit<\/td>\n<td>PTFE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\"><strong>MECHANICAL PROPERTIES<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Specific Gravity<\/td>\n<td>D792<\/td>\n<td>2.18<\/td>\n<\/tr>\n<tr>\n<td>Elongation %<\/td>\n<td>D638<\/td>\n<td>200 ~ 450<\/td>\n<\/tr>\n<tr>\n<td>Tensile Strength (psi)<\/td>\n<td>D638<\/td>\n<td>2,000~7,000<\/td>\n<\/tr>\n<tr>\n<td>Flexural Strength (psi)<\/td>\n<td>D790<\/td>\n<td>no break<\/td>\n<\/tr>\n<tr>\n<td>Compressive Strength<\/td>\n<td>D695<\/td>\n<td>3.500<\/td>\n<\/tr>\n<tr>\n<td>Tensile Elastic Modulus (Young\u2019s Modulus) (psi)<\/td>\n<td>D638<\/td>\n<td>57.000<\/td>\n<\/tr>\n<tr>\n<td>(psi) Flexural Modulus 103MPa (103kgf\/cm2)<\/td>\n<td>D790<br \/>\nD790<\/td>\n<td>71,000 ~ 85,000<br \/>\n0.5-0.6 (5.0-6.0)<\/td>\n<\/tr>\n<tr>\n<td>FlexLife (MIT cycles)<\/td>\n<td>D2176<\/td>\n<td>&gt;1,000,000<\/td>\n<\/tr>\n<tr>\n<td>Hardness Durometer Shore D<\/td>\n<td>D636<\/td>\n<td>D50 ~ 65<\/td>\n<\/tr>\n<tr>\n<td>Coefficient of Friction<\/td>\n<td>On steel<\/td>\n<td>0.02<\/td>\n<\/tr>\n<tr>\n<td>Abrasion Resistance 1000 revs.<\/td>\n<td>Taber<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>Impact Strength IZOD 73\u00b0F\/23\u00b0C, notched ft\/lbs\/in<\/td>\n<td>D256<\/td>\n<td>3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td>Properties<\/td>\n<td>ASTM or unit<\/td>\n<td>PTFE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\"><strong>THERMAL PROPERTIES<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Melting Point<\/td>\n<td>\u00b0C (\u00b0F)<\/td>\n<td>327 (621)<\/td>\n<\/tr>\n<tr>\n<td>Upper Service Temperature(20,000h)<\/td>\n<td>\u00b0C (\u00b0F)<\/td>\n<td>260 (500)<\/td>\n<\/tr>\n<tr>\n<td>Flame Rating**<\/td>\n<td>UL 94<\/td>\n<td>V-0<\/td>\n<\/tr>\n<tr>\n<td>Thermal Conductivity<\/td>\n<td>BTU\/hr\/ft2\/deg F in<br \/>\ncal\/sec\/cm2,\u00baC\/cm<\/td>\n<td>1.7<br \/>\n6 x 10-4<\/td>\n<\/tr>\n<tr>\n<td>Linear Coefficient of Thermal Expansion 10-5 \u00b0C<\/td>\n<td>D696<\/td>\n<td>&gt;11.6<\/td>\n<\/tr>\n<tr>\n<td>Heat of Fusion<\/td>\n<td>BTU\/LB<\/td>\n<td>29-37<\/td>\n<\/tr>\n<tr>\n<td>Heat of Combustion<\/td>\n<td>BTU\/LB<\/td>\n<td>2200<\/td>\n<\/tr>\n<tr>\n<td>Low Temperature Embrittlement<\/td>\n<td>\u00b0C (\u00b0F)<\/td>\n<td>-268 (-450)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td>Properties<\/td>\n<td>ASTM or unit<\/td>\n<td>PTFE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\"><strong>ELECTRICAL PROPERTIES<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Dielectric Constant<\/td>\n<td>D150\/103Hz<br \/>\nD150\/106Hz<\/td>\n<td>2.1<br \/>\n2.1<\/td>\n<\/tr>\n<tr>\n<td>Dielectric Strength 10 mil film<\/td>\n<td>D149<\/td>\n<td>&gt;1400<\/td>\n<\/tr>\n<tr>\n<td>Volume Resistivity ohm-cm<\/td>\n<td>D257<\/td>\n<td>&gt;1018<\/td>\n<\/tr>\n<tr>\n<td>Surface Resistivity ohm\/sq.<\/td>\n<td>D257<\/td>\n<td>&gt;1017<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td>Properties<\/td>\n<td>ASTM or unit<\/td>\n<td>PTFE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\"><strong>GENERAL PROPERTIES<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Chemical\/Solvent Resistance<\/td>\n<td>D543<\/td>\n<td>Excellent<\/td>\n<\/tr>\n<tr>\n<td>Water Absorption, 24h<\/td>\n<td>%<\/td>\n<td>&gt;0.01<\/td>\n<\/tr>\n<tr>\n<td>Deformation Under Load<\/td>\n<td>*D621\/100\u00b0C<br \/>\n**D621\/25\u00b0C<\/td>\n<td>5.0<br \/>\n7.0<\/td>\n<\/tr>\n<tr>\n<td>Refractive Index<\/td>\n<td><\/td>\n<td>1.35<\/td>\n<\/tr>\n<tr>\n<td>Limiting Oxygen Index<\/td>\n<td>&gt;95<\/td>\n<td>&gt;95<\/td>\n<\/tr>\n<tr>\n<td>Properties<\/td>\n<td>ASTM or Unit<\/td>\n<td>PTFE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\">*6.8 MPa (986 psi),24h<br \/>\n**13.7 MPa (1987 psi),24h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Le PTFE, c\u2019est quoi? Le PTFE ou Polyt\u00e9trafluoro\u00e9thyl\u00e8ne a une structure mol\u00e9culaire bas\u00e9e sur une cha\u00eene d\u2019atomes de carbone. Mai, \u00e0 la diff\u00e9rence d\u2019autres fluoropolym\u00e8res, dans le PTFE, chaque atome de carbone est li\u00e9 \u00e0 deux atomes de fluor qui forment une cha\u00eene h\u00e9lico\u00efdale autour du carbone et le prot\u00e8ge. Principales Propri\u00e9t\u00e9s Large gamme de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4301,"parent":362,"menu_order":44,"comment_status":"closed","ping_status":"closed","template":"template_technical_sub.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-397","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PTFE - Xtraflex<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/xtraflex.com\/fr\/customer-information\/ptfe\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PTFE - Xtraflex\" \/>\n<meta property=\"og:description\" content=\"Le PTFE, c\u2019est quoi? Le PTFE ou Polyt\u00e9trafluoro\u00e9thyl\u00e8ne a une structure mol\u00e9culaire bas\u00e9e sur une cha\u00eene d\u2019atomes de carbone. Mai, \u00e0 la diff\u00e9rence d\u2019autres fluoropolym\u00e8res, dans le PTFE, chaque atome de carbone est li\u00e9 \u00e0 deux atomes de fluor qui forment une cha\u00eene h\u00e9lico\u00efdale autour du carbone et le prot\u00e8ge. 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