Polytetrafluoroethylene (original) (raw)
El politetrafluoretilè (PTFE), o Teflon® (Teflon®, de DuPont, marca amb la que fou comercialitzat inicialment), és un polímer similar al polietilè, on els àtoms d'hidrogen estan substituïts per fluor.
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| | dbo:abstract | El politetrafluoretilè (PTFE), o Teflon® (Teflon®, de DuPont, marca amb la que fou comercialitzat inicialment), és un polímer similar al polietilè, on els àtoms d'hidrogen estan substituïts per fluor. (ca) متعدد رباعي فلورو الإيثيلين أو بولي تيترا فلورو إيثلين يرمز له اختصاراً PTFE هو بوليمر صناعي حاوي على الفلور ينتج من بلمرة ، ويعرف باسم تيفلون، وهو العلامة التجارية من شركة دو بونت. يمتاز التيفلون بمقاومته للمواد الكيميائية وخواصه العازلة. (ar) Polytetrafluorethylen (zkráceně PTFE, také polytetrafluorethen) je fluorovaný polymer ze skupiny perfluorovaných sloučenin. Jako první ho připravil chemik Roy J. Plunkett ve společnosti DuPont. Polytetrafluorethylen je známější pod svým obchodním názvem teflon. Dalšími používanými obchodními názvy polytetrafluorethylenu jsou Dyneon™ PTFE (v minulosti Hostaflon™) a Gore-Tex™ (PTFE membrány). Nádoby z PTFE PTFE patří do skupiny polyhalogenolefínů, kam patří např. i PCTFE — . Patří k termoplastům, ačkoliv má některé vlastnosti, které jsou typické spíše pro reaktoplasty. Při pokojové teplotě je to bílá pevná látka s hustotou přibližně 2200 kg/m3, což je u plastů jedna z nejvyšších hodnot. Teplota tání PTFE je přibližně 327 °C, ale jeho vlastnosti se mění již při teplotě 260 °C, nad teplotou 350 °C nastává rozklad, hoří při 500–560 °C. Je to polymer s vysokým (OI 95–98, jako samozhášivé polymery označujeme ty s kyslíkovým číslem větším než 21), což jej v zásadě řadí mezi nehořlavé polymery s velkým uplatněním na trhu. (cs) Το πολυτετραφθοροαιθυλενίο (συντομογραφικά PTFE) (polytetrafluoroethylene) είναι ένα που χρησιμοποιείται κυρίως ως επικάλυψη αντικειμένων και συστατικό πλαστικών αντικειμένων, ενώ έχει και πολλές άλλες εφαρμογές. Το γνωστόστερο εμπορικό όνομα φόρμουλας με βάση το PTFE-based είναι το Τεφλόν (Teflon) (με το οποίο όνομα είναι γνωστή εμπορικά και ευρέως η ουσία) από την εταιρεία Chemours. Η τελευταία είναι ένα παρακλάδι που δημιουργήθηκε το 2015 της εταιρείας DuPont Co., η οποία ανακάλυψε την ουσία το 1938. (el) Polytetrafluorethylen (Kurzzeichen PTFE, gelegentlich auch Polytetrafluorethen) ist ein unverzweigtes, linear aufgebautes, teilkristallines Polymer aus Fluor und Kohlenstoff. Umgangssprachlich wird dieser Kunststoff oft mit dem Handelsnamen Teflon der Firma DuPont bezeichnet. Weitere häufig verwendete Handelsnamen anderer Hersteller von PTFE sind Dyneon PTFE (ehemals Hostaflon) und Gore-Tex für PTFE-Membranen. PTFE gehört zur Klasse der Polyhalogenolefine, zu der auch PCTFE (Polychlortrifluorethylen) gehört. Es gehört zu den Thermoplasten, obwohl es auch Eigenschaften aufweist, die eine eher für duroplastische Kunststoffe typische Verarbeitung bedingen. (de) En kemio, polikvarfluoretileno (poli-kvar-fluor-etileno) aŭ polikvarfluoreteno (poli-kvar-fluor-eteno) estas sintezita polimero de . Ĝia kemia formulo estas CnF2n+2. Tipa molekula maso de polikvarfluoretileno estas proksimume 1.000.000 g/molo. Polikvarfluoretileno estas blanka, travidebla en maldika tavolo solido. Polikvarfluoretileno estas solido kiel ĝi estas kombinaĵo kun granda molekula maso konsistanta tute el karbono kaj fluoro. Kemia rezisteco de polikvarfluoretileno estas pli granda ol tiu de ĉiuj la aliaj sintezitaj materialoj kaj de noblaj metaloj. Ĝi ne detruiĝas je bazoj, acidoj (inkluzivante la - miksaĵon de kaj ). Ĝi detruiĝas je fandaĵoj de alkalaj metaloj, fluoro kaj . Nek akvo kaj akvo-enhavantaj esencoj nek oleoj kaj oleo-enhavantaj esencoj malsekigas polikvarfluoretilenon, ĉar fluorokarbonoj havas moderajn fortojn de Van-der-Waals pro la alta elektronegativeco de fluoro. Polikvarfluoretileno havas unu el la plej malaltajn koeficientojn de frotado kontraŭ ĉiu solido. Polikvarfluoretileno estas uzata kiel mantelo por pajnoj kaj aliaj kuiradaj ujoj. Ĝi estas tre ne-reakciokapabla, parte pro la forteco de , havanta grandan energion de ligiĝo 485 kJ/mol. Tiel ĝi estas ofte uzata en konteneroj kaj duktoj por reakciokapablaj kemiaĵoj. Uzata kiel lubrikaĵo, polikvarfluoretileno malpligrandigas frotadon, eluziĝon kaj perdadon de energio. Ĝia CAS-numero estas 9002-84-0. (eo) Politetrafluoroetilenoa, PTFEa edo tefloia (azken hori jatorrizko Teflon —marka erregistratua— izenetik eratorria) polietilenoaren antzeko polimero bat da, baina hidrogeno atomoak fluorragatik aldatu dira. Monomeroaren formula kimikoa CF2=CF2 da, eta izena du. PTFEa solidoa da, osorik karbonoz eta fluorrez osatutako pisu molekular handiko konposatua baita. PTFEa hidrofobikoa da: urak edo ura duten konposatuek ez dute bustitzen PTFEa; izan, ere, fluorokarbonoek motelduta agertzen dute, fluorraren elektronegatibitate altua dela eta. PTFEak edozein solidorekiko duen frikzioa, ezagutzen den txikienetako bat da. DuPont enpresak konposatu hau Teflon izenarekin merkaturatzen du, eta oso erabilia da zartaginetan eta beste hainbat sukalde tresnatan, jakia ez zaiolako itsasten berotzean. Elementu korrosiboak erabiltzen diren hainbat esperimentutan ere PTFEzko estaldurak erabiltzen dira. Makina batzuetan lubrifikatzaile gisa ere erabiltzen da. (eu) El politetrafluoroetileno (PTFE), más conocido como teflón, es un polímero similar al polietileno, en el que los átomos de hidrógeno han sido sustituidos por átomos de flúor. La fórmula química del monómero, tetrafluoroeteno, es CF2=CF2. La fórmula del polímero se muestra en la figura. Teflón es una marca comercial registrada propiedad de y hace referencia a una familia de productos comercializados por la multinacional, y no a un compuesto químico específico. Entre ellos están la resina PFA (perfluoroalcóxido) y el copolímero FEP (etileno-propileno fluorado), llamados comercialmente teflón-PFA y teflón-FEP respectivamente. En la siguiente figura se muestra la fórmula del PFA (perfluoroalcóxido): Tanto el PFA como el FEP comparten las propiedades características del PTFE, ofreciendo una mayor facilidad de manipulación en su aplicación industrial. Como resultado de una demanda colectiva y de un acuerdo comunitario con DuPont, tres epidemiólogos realizaron estudios sobre la población que rodeaba una planta química de Ohio y estaba expuesta a PFOA a niveles superiores a los de la población general. Los estudios concluyeron que había una asociación entre la exposición a PFOA y seis condiciones médicas: cáncer de riñón, cáncer de testículo, colitis ulcerosa, enfermedad de la tiroides, hipercolesterolemia (colesterol alto) e hipertensión inducida por el embarazo. Melinda Wenner Moyer, bióloga molecular, escribe para Investigación y Ciencia en octubre de 2010 que el subproducto de su fabricación ácido perfluorooctanoico, que no es biodegradable, contamina las aguas y se encuentra en el 95% de los habitantes de los Estados Unidos. La película Aguas Oscuras (Todd Haynes, 2019), basada en un artículo del The New York Times, con guion de Matthew Carnahan, Mario Correa y Nathaniel Rich (el articulista) muestra cómo el abogado Robert Bilott (representado por Mark Ruffalo) descubre el problema y termina ganando judicialmente a Du Pont, que indemniza parte de las víctimas con 670,7 millones de dólares. (es) Le polytétrafluoroéthylène (sigle PTFE) est un fluoropolymère issu du tétrafluoroéthylène. Ce polymère technique a été découvert par hasard en 1938 par le chimiste Roy J. Plunkett (1910-1994) travaillant pour la société américaine E.I. du Pont de Nemours and Company souvent appelée « du Pont de Nemours » et officiellement abrégée en « DuPont ». Il fut introduit commercialement en 1949. Il est commercialisé sous les marques déposées Téflon, Hostalen, Hostaflon, Fluon ou Soreflon. La plus connue est Téflon de Du Pont de Nemours. Il possède des propriétés remarquables qui le distinguent des autres polymères thermoplastiques, notamment une excellente résistance aux agressions thermiques ou chimiques, ainsi qu'un coefficient de frottement extrêmement faible. Dans la vie courante, le Téflon est largement utilisé comme revêtement antiadhésif dans les ustensiles de cuisine. (fr) Polaiméir phlaisteach theirmithéachtach le hairíonna tábhachtacha mionathraithe dromchla is ea polaiteitreafluaireitiléin (PTFE). Comhéifeacht íseal frithchuimilte aici, agus mar sin luachmhar in imthacaí neamhbhealaithe, ar dhromchlaí scíonna, is chun dromchlaí neamhghreamaitheacha a dhéanamh ar ghréithre cócaireachta. Frithsheasmhach i gcoinne ceimiceán, inslitheoir maith, agus ábhar nach n-éiríonn bog go dtí teocht ard. (ga) Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is one of the best-known and widely applied PFAS. The commonly known brand name of PTFE-based composition is Teflon by Chemours, a spin-off from DuPont, which originally discovered the compound in 1938. Polytetrafluoroethylene is a fluorocarbon solid, as it is a high-molecular-weight polymer consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons exhibit only small London dispersion forces due to the low electric polarizability of fluorine. PTFE has one of the lowest coefficients of friction of any solid. Polytetrafluoroethylene is used as a non-stick coating for pans and other cookware. It is non-reactive, partly because of the strength of carbon–fluorine bonds, so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear, and energy consumption of machinery. It is used as a graft material in surgery and as a coating on catheters. (en) Politetrafluoroetilena (PTFE) adalah sintetis. Senyawa polimer ini lebih dikenal dengan nama dagang Teflon. Teflon diciptakan oleh Roy J. Plunkett (1910–1994) di DuPont pada tahun 1938 dan diperkenalkan sebagai produk yang dikomersialkan pada tahun 1946. Senyawa ini merupakan fluoropolimer termoplastik. Teflon disebut juga polimer etilena fluorin. F F | | -(C - C)- | | n F F "Teflon" juga digunakan sebagai merek dagang polimer yang memiliki sifat serupa yaitu resin polimer perfluoroalkoksi (PFA): F F F F | | | | -(C - C) - (C - C)- | | m | | n F F F O | F - C - F | F PTFE memiliki koefisien gesek terendah dari berbagai bahan padat yang biasa digunakan. PTFE digunakan sebagai pelapis antilengket untuk panci, wajan, dan peralatan memasak lainnya. PTFE sangat tidak reaktif, dan sering digunakan sebagai bahan wadah dan pipa untuk bahan kimia yang reaktif. Titik lelehnya bervariasi antara 260 °C (FEP) dan 327 °C (PTFE), tergantung dari polimer Teflon tertentu. ® adalah sebuah bahan yang menggunakan membran teflon dengan pori-pori mikro. (in) ポリテトラフルオロエチレン (polytetrafluoroethylene, PTFE) はテトラフルオロエチレンの重合体で、フッ素原子と炭素原子のみからなるフッ素樹脂（フッ化炭素樹脂）である。テフロン (Teflon) の商品名で知られる。化学的に安定で耐熱性、耐薬品性に優れる。 (ja) 폴리테트라플루오로에틸렌(Polytetrafluoroethylene, PTFE)는 많은 작은 분자(단위체)들을 사슬이나 그물 형태로 화학결합시켜 만드는 커다란 분자로 이루어진, 유기 중합체 계열에 속하는 비가연성 불소수지이다. 열에 강하고, 가 극히 낮으며, 내화학성이 좋다. 폴리테트라플루오로에틸렌은 약자인 PTFE 또는 듀퐁의 상품명인 테프론(Teflon)으로 많이 알려져 있고, 모든 화학약품에 대해 내화학성이 있으며, 매끄러운 표면으로 유명하다. 넓은 온도범위(－270~250°C)에서 물리적 성질을 유지한다. 이러한 성질 때문에 PTFE는 개스킷, 베어링, 컨테이너와 관의 내벽, 부식성 환경에서 사용되는 밸브와 펌프의 부품, 조리기구, 톱날, 기타 다른 제품의 보호막으로 적합하다. 테프론 오일은 이 수지를 작은 크기로 만들어 오일에 혼합한 것이다. 테프론이 포함된 오일들은 대개 합성유이다. (ko) Teflon is een merknaam van gepolymeriseerd polytetrafluoretheen (PTFE), een chemische verbinding die in 1938 ontdekt is door Roy Plunkett in het Jackson Laboratorium van de firma DuPont in de Amerikaanse staat New Jersey. Plunkett vroeg octrooi op de stof aan, dat op 4 februari 1941 werd toegekend. In 1949 werd teflon als commercieel product geïntroduceerd. (nl) Il politetrafluoroetilene (PTFE) è il polimero appartenente alla classe dei perfluorocarburi (PFC) derivante dall'omopolimerizzazione del tetrafluoroetene. Normalmente è più conosciuto attraverso le sue denominazioni commerciali Teflon, Fluon, Algoflon, Hostaflon, Inoflon e Guaflon, in cui al polimero vengono aggiunti altri componenti e per migliorarne le possibilità applicative, oppure cariche a base di silice, carbone, bronzo, inox e solfato di bario per incrementare le prestazioni in ambito meccanico, pneumatico o chimico, così come per applicazioni farmaceutiche. È una materia plastica liscia al tatto e resistente a temperature fino ai 260 °C (533,1 K), usata nell'industria per ricoprire superfici sottoposte ad alte temperature alle quali si richiede una "antiaderenza" e una buona inerzia chimica. Le padelle da cucina definite "antiaderenti", sono tali perché ricoperte all'interno di uno strato di PTFE (Teflon). È inoltre il materiale con il coefficiente di attrito più basso conosciuto, con attrito dinamico TFE-Acciaio pari a 0,04, mentre l'attrito statico è pari a 0,07 / 0,14. (it) Poli(tetrafluoroetylen) (PTFE, nazwa handlowa: teflon) – syntetyczny fluoropolimer o strukturze meru −[−CF2−CF2−]n−. (pl) O politetrafluoretileno (PTFE) é um fluoropolímero sintético do tetrafluoroetileno que possui inúmeras aplicações,comumente conhecido pelo seu nome comercial, Teflon, nomeado pela Chemours em 1938, empresa que viria a se tornar a DuPont.Atualmente o PTFE é frequentemente usado como revestimento antiaderente para panelas e outros utensílios de cozinha. Ademais, é muito pouco reativo, em parte devido à força das ligações carbono-flúor, e, portanto, é frequentemente usado em recipientes e tubulações para produtos químicos reativos e corrosivos.Também é comumente usado como material de enxerto em intervenções cirúrgicas, sendo frequentemente empregado como revestimento em cateteres, já que impede de bactérias e outros agentes infecciosos de aderirem aos materiais. (pt) Политетрафторэтиле́н, или фторопла́ст-4 (−C2F4−)n, также известный под торговой маркой тефлон — полимер тетрафторэтилена (ПТФЭ), широко применяемый в технике и быту. Этот материал обладает редкими физическими и химическими свойствами — хорошим скольжением и химической инертностью. Слово «Тефлон» является зарегистрированным товарным знаком компании Chemours (спин-офф компания корпорации DuPont). Непатентованное название вещества — «политетрафторэтилен» или «фторополимер». В СССР и России традиционное техническое название этого материала — фторопласт-4. (ru) Polytetrafluoreten eller PTFE är en fluorplast med fysikaliska egenskaper som gör den mycket hal (låg friktion). Ämnet är nog mest känt från varumärkena teflon och Gore-Tex men framställs och marknadsförs också av andra företag under namn som dyneonTM PTFE (tidigare hostaflon), heydeflon, ekafluvin, fluon, algoflon och polyflon. (sv) 聚四氟乙烯（英語：Polytetrafluoroethylene，縮寫為PTFE），俗稱“塑膠王”，商标名Teflon（中文譯名各地相異：中國大陸譯為特富龙，香港譯為特氟龍，台灣民間一般譯為鐵氟龍、教科書則譯為特夫綸，Teflon也同時作為同樣是氟聚合物的FEP、PFA的商標），這種材料的產品一般統稱作「不粘涂层」/「易潔鑊物料」；是一種使用了氟取代聚乙烯中所有氢原子的人工合成高分子材料。这种材料具有抗酸抗鹼、抗各种有机溶剂的特点，几乎不溶于所有溶剂。同时，聚四氟乙烯具有耐高温的特点，它的摩擦系數極低，所以可作润滑作用之餘，亦成為了不沾鍋和水管內層的理想塗料。 (zh) Політетрафлуорете́н (Політетрафторетилен, ПТФЕ, фторопла́ст-4) (-CF2-)n, також відомий під торговою маркою Teflon™ — полімер, пластична маса, що використовується в різних галузях науки, техніки і в побуті. (uk) | | dbo:alternativeName | Fluon, Poly(tetrafluoroethene), Poly(difluoromethylene), Poly(tetrafluoroethylene), teflon (en) | | | | | | | | | | | | | | | dbo:iupacName | Poly(1,1,2,2-tetrafluoroethylene) (en) | | | | | | | | | | | | | | | dbo:thumbnail | wiki-commons:Special:FilePath/Polytetrafluoroethylene.svg?width=300 | | | | | | | | | | | | | | | dbo:wikiPageExternalLink | https://web.archive.org/web/20090227022541/http:/www.plasmatechsystems.com/about/pubs/Plasma%20Processes%20Polytetrafluoroethylene.pdf https://web.archive.org/web/20100305090149/http:/fluorotherm.com/Properties-PTFE.asp https://www.sciencehistory.org/distillations/podcast/teflon | | | | | | | | | | | | | | | dbo:wikiPageID | 30791 (xsd:integer) | | | | | | | | | | | | | | | dbo:wikiPageLength | 50783 (xsd:nonNegativeInteger) | | | | | | | | | | | | | | | dbo:wikiPageRevisionID | 1124448951 (xsd:integer) | | | | | | | | | | | | | | | dbo:wikiPageWikiLink | dbr:Cape_Fear_River dbr:Carbon 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dbr:File:Gore_twisted_pair_cable,_Passenge...018,_Hamburg_(1X7A3731)_(cropped).jpg dbr:File:PFA_structure.PNG dbr:File:PTFE_tapes_with_pressure-sensitiv...ing,_rolls_of_15_and_25_mm_widths.jpg dbr:File:Teflon-jar_hg.jpg dbr:File:Blintzes_in_frying_pan.jpg dbr:File:Happy_Pan_Poster.jpg | | | | | | | | | | | | | | | dbp:align | right (en) | | | | | | | | | | | | | | | dbp:audio | "From stove tops to outer space... Teflon touches every one of us some way almost every day.", Roy Plunkett, Science History Institute (en) | | | | | | | | | | | | | | | dbp:date | December 2021 (en) | | | | | | | | | | | | | | | dbp:imagefile | Polytetrafluoroethylene.svg (en) Perfluorodecyl-chain-from-xtal-Mercury-3D-balls.png (en) | | | | | | | | | | | | | | | dbp:imagesize | 130 (xsd:integer) 350 (xsd:integer) | | | | | | | | | | | | | | | dbp:iupacname | Poly (en) | | | | | | | | | | | | | | | dbp:othernames | Fluon, Poly, Poly, Poly, teflon (en) | | | | | | | | | | | | | | | dbp:reason | Are they coated or fully PTFE from a mold? Is cold-molding used? (en) | | | | | | | | | | | | | | | dbp:verifiedfields | changed (en) | | | | | | | | | | | | | | | dbp:verifiedrevid | 477171888 (xsd:integer) | | | | | | | | | | | | | | | dbp:watchedfields | changed (en) | | | | | | | | | | | | | | | dbp:width | 210 (xsd:integer) | | | | | | | | | | | | | | | dbp:wikiPageUsesTemplate | dbt:= dbt:Chem dbt:Chembox dbt:Chembox_Hazards dbt:Chembox_Identifiers dbt:Chembox_Properties dbt:Cite_journal dbt:Clarify dbt:Convert dbt:Efn dbt:External_media dbt:Main dbt:More_citations_needed_section dbt:Nbsp dbt:Notelist dbt:Redirect dbt:Reflist dbt:Short_description dbt:Sup dbt:Use_dmy_dates dbt:Cascite dbt:Chemspidercite dbt:Ebicite dbt:Fdacite dbt:Keggcite dbt:Plastics dbt:DuPont | | | | | | | | | | | | | | | dct:subject | dbc:Pyrotechnic_oxidizers dbc:DuPont dbc:Fluoropolymers dbc:Plastics dbc:DuPont_products dbc:American_inventions dbc:Biomaterials dbc:Dry_lubricants dbc:Fluorocarbons dbc:Dielectrics dbc:Engineering_plastic dbc:Roofing_materials | | | | | | | | | | | | | | | gold:hypernym | dbr:Fluoropolymer | | | | | | | | | | | | | | | rdf:type | owl:Thing dul:ChemicalObject dbo:ChemicalSubstance wikidata:Q11173 dbo:ChemicalCompound dbo:Drug umbel-rc:ChemicalSubstanceType | | | | | | | | | | | | | | | rdfs:comment | El politetrafluoretilè (PTFE), o Teflon® (Teflon®, de DuPont, marca amb la que fou comercialitzat inicialment), és un polímer similar al polietilè, on els àtoms d'hidrogen estan substituïts per fluor. (ca) متعدد رباعي فلورو الإيثيلين أو بولي تيترا فلورو إيثلين يرمز له اختصاراً PTFE هو بوليمر صناعي حاوي على الفلور ينتج من بلمرة ، ويعرف باسم تيفلون، وهو العلامة التجارية من شركة دو بونت. يمتاز التيفلون بمقاومته للمواد الكيميائية وخواصه العازلة. (ar) Το πολυτετραφθοροαιθυλενίο (συντομογραφικά PTFE) (polytetrafluoroethylene) είναι ένα που χρησιμοποιείται κυρίως ως επικάλυψη αντικειμένων και συστατικό πλαστικών αντικειμένων, ενώ έχει και πολλές άλλες εφαρμογές. Το γνωστόστερο εμπορικό όνομα φόρμουλας με βάση το PTFE-based είναι το Τεφλόν (Teflon) (με το οποίο όνομα είναι γνωστή εμπορικά και ευρέως η ουσία) από την εταιρεία Chemours. Η τελευταία είναι ένα παρακλάδι που δημιουργήθηκε το 2015 της εταιρείας DuPont Co., η οποία ανακάλυψε την ουσία το 1938. (el) Polaiméir phlaisteach theirmithéachtach le hairíonna tábhachtacha mionathraithe dromchla is ea polaiteitreafluaireitiléin (PTFE). Comhéifeacht íseal frithchuimilte aici, agus mar sin luachmhar in imthacaí neamhbhealaithe, ar dhromchlaí scíonna, is chun dromchlaí neamhghreamaitheacha a dhéanamh ar ghréithre cócaireachta. Frithsheasmhach i gcoinne ceimiceán, inslitheoir maith, agus ábhar nach n-éiríonn bog go dtí teocht ard. (ga) ポリテトラフルオロエチレン (polytetrafluoroethylene, PTFE) はテトラフルオロエチレンの重合体で、フッ素原子と炭素原子のみからなるフッ素樹脂（フッ化炭素樹脂）である。テフロン (Teflon) の商品名で知られる。化学的に安定で耐熱性、耐薬品性に優れる。 (ja) 폴리테트라플루오로에틸렌(Polytetrafluoroethylene, PTFE)는 많은 작은 분자(단위체)들을 사슬이나 그물 형태로 화학결합시켜 만드는 커다란 분자로 이루어진, 유기 중합체 계열에 속하는 비가연성 불소수지이다. 열에 강하고, 가 극히 낮으며, 내화학성이 좋다. 폴리테트라플루오로에틸렌은 약자인 PTFE 또는 듀퐁의 상품명인 테프론(Teflon)으로 많이 알려져 있고, 모든 화학약품에 대해 내화학성이 있으며, 매끄러운 표면으로 유명하다. 넓은 온도범위(－270~250°C)에서 물리적 성질을 유지한다. 이러한 성질 때문에 PTFE는 개스킷, 베어링, 컨테이너와 관의 내벽, 부식성 환경에서 사용되는 밸브와 펌프의 부품, 조리기구, 톱날, 기타 다른 제품의 보호막으로 적합하다. 테프론 오일은 이 수지를 작은 크기로 만들어 오일에 혼합한 것이다. 테프론이 포함된 오일들은 대개 합성유이다. (ko) Teflon is een merknaam van gepolymeriseerd polytetrafluoretheen (PTFE), een chemische verbinding die in 1938 ontdekt is door Roy Plunkett in het Jackson Laboratorium van de firma DuPont in de Amerikaanse staat New Jersey. Plunkett vroeg octrooi op de stof aan, dat op 4 februari 1941 werd toegekend. In 1949 werd teflon als commercieel product geïntroduceerd. (nl) Poli(tetrafluoroetylen) (PTFE, nazwa handlowa: teflon) – syntetyczny fluoropolimer o strukturze meru −[−CF2−CF2−]n−. (pl) O politetrafluoretileno (PTFE) é um fluoropolímero sintético do tetrafluoroetileno que possui inúmeras aplicações,comumente conhecido pelo seu nome comercial, Teflon, nomeado pela Chemours em 1938, empresa que viria a se tornar a DuPont.Atualmente o PTFE é frequentemente usado como revestimento antiaderente para panelas e outros utensílios de cozinha. Ademais, é muito pouco reativo, em parte devido à força das ligações carbono-flúor, e, portanto, é frequentemente usado em recipientes e tubulações para produtos químicos reativos e corrosivos.Também é comumente usado como material de enxerto em intervenções cirúrgicas, sendo frequentemente empregado como revestimento em cateteres, já que impede de bactérias e outros agentes infecciosos de aderirem aos materiais. (pt) Политетрафторэтиле́н, или фторопла́ст-4 (−C2F4−)n, также известный под торговой маркой тефлон — полимер тетрафторэтилена (ПТФЭ), широко применяемый в технике и быту. Этот материал обладает редкими физическими и химическими свойствами — хорошим скольжением и химической инертностью. Слово «Тефлон» является зарегистрированным товарным знаком компании Chemours (спин-офф компания корпорации DuPont). Непатентованное название вещества — «политетрафторэтилен» или «фторополимер». В СССР и России традиционное техническое название этого материала — фторопласт-4. (ru) Polytetrafluoreten eller PTFE är en fluorplast med fysikaliska egenskaper som gör den mycket hal (låg friktion). Ämnet är nog mest känt från varumärkena teflon och Gore-Tex men framställs och marknadsförs också av andra företag under namn som dyneonTM PTFE (tidigare hostaflon), heydeflon, ekafluvin, fluon, algoflon och polyflon. (sv) 聚四氟乙烯（英語：Polytetrafluoroethylene，縮寫為PTFE），俗稱“塑膠王”，商标名Teflon（中文譯名各地相異：中國大陸譯為特富龙，香港譯為特氟龍，台灣民間一般譯為鐵氟龍、教科書則譯為特夫綸，Teflon也同時作為同樣是氟聚合物的FEP、PFA的商標），這種材料的產品一般統稱作「不粘涂层」/「易潔鑊物料」；是一種使用了氟取代聚乙烯中所有氢原子的人工合成高分子材料。这种材料具有抗酸抗鹼、抗各种有机溶剂的特点，几乎不溶于所有溶剂。同时，聚四氟乙烯具有耐高温的特点，它的摩擦系數極低，所以可作润滑作用之餘，亦成為了不沾鍋和水管內層的理想塗料。 (zh) Політетрафлуорете́н (Політетрафторетилен, ПТФЕ, фторопла́ст-4) (-CF2-)n, також відомий під торговою маркою Teflon™ — полімер, пластична маса, що використовується в різних галузях науки, техніки і в побуті. (uk) Polytetrafluorethylen (zkráceně PTFE, také polytetrafluorethen) je fluorovaný polymer ze skupiny perfluorovaných sloučenin. Jako první ho připravil chemik Roy J. Plunkett ve společnosti DuPont. Polytetrafluorethylen je známější pod svým obchodním názvem teflon. Dalšími používanými obchodními názvy polytetrafluorethylenu jsou Dyneon™ PTFE (v minulosti Hostaflon™) a Gore-Tex™ (PTFE membrány). Nádoby z PTFE Je to polymer s vysokým (OI 95–98, jako samozhášivé polymery označujeme ty s kyslíkovým číslem větším než 21), což jej v zásadě řadí mezi nehořlavé polymery s velkým uplatněním na trhu. (cs) Polytetrafluorethylen (Kurzzeichen PTFE, gelegentlich auch Polytetrafluorethen) ist ein unverzweigtes, linear aufgebautes, teilkristallines Polymer aus Fluor und Kohlenstoff. Umgangssprachlich wird dieser Kunststoff oft mit dem Handelsnamen Teflon der Firma DuPont bezeichnet. Weitere häufig verwendete Handelsnamen anderer Hersteller von PTFE sind Dyneon PTFE (ehemals Hostaflon) und Gore-Tex für PTFE-Membranen. (de) En kemio, polikvarfluoretileno (poli-kvar-fluor-etileno) aŭ polikvarfluoreteno (poli-kvar-fluor-eteno) estas sintezita polimero de . Ĝia kemia formulo estas CnF2n+2. Tipa molekula maso de polikvarfluoretileno estas proksimume 1.000.000 g/molo. Polikvarfluoretileno estas blanka, travidebla en maldika tavolo solido. Polikvarfluoretileno estas solido kiel ĝi estas kombinaĵo kun granda molekula maso konsistanta tute el karbono kaj fluoro. Uzata kiel lubrikaĵo, polikvarfluoretileno malpligrandigas frotadon, eluziĝon kaj perdadon de energio. Ĝia CAS-numero estas 9002-84-0. (eo) El politetrafluoroetileno (PTFE), más conocido como teflón, es un polímero similar al polietileno, en el que los átomos de hidrógeno han sido sustituidos por átomos de flúor. La fórmula química del monómero, tetrafluoroeteno, es CF2=CF2. La fórmula del polímero se muestra en la figura. Tanto el PFA como el FEP comparten las propiedades características del PTFE, ofreciendo una mayor facilidad de manipulación en su aplicación industrial. (es) Politetrafluoroetilenoa, PTFEa edo tefloia (azken hori jatorrizko Teflon —marka erregistratua— izenetik eratorria) polietilenoaren antzeko polimero bat da, baina hidrogeno atomoak fluorragatik aldatu dira. Monomeroaren formula kimikoa CF2=CF2 da, eta izena du. PTFEa solidoa da, osorik karbonoz eta fluorrez osatutako pisu molekular handiko konposatua baita. PTFEa hidrofobikoa da: urak edo ura duten konposatuek ez dute bustitzen PTFEa; izan, ere, fluorokarbonoek motelduta agertzen dute, fluorraren elektronegatibitate altua dela eta. PTFEak edozein solidorekiko duen frikzioa, ezagutzen den txikienetako bat da. (eu) Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is one of the best-known and widely applied PFAS. The commonly known brand name of PTFE-based composition is Teflon by Chemours, a spin-off from DuPont, which originally discovered the compound in 1938. (en) Le polytétrafluoroéthylène (sigle PTFE) est un fluoropolymère issu du tétrafluoroéthylène. Ce polymère technique a été découvert par hasard en 1938 par le chimiste Roy J. Plunkett (1910-1994) travaillant pour la société américaine E.I. du Pont de Nemours and Company souvent appelée « du Pont de Nemours » et officiellement abrégée en « DuPont ». Il fut introduit commercialement en 1949. Il est commercialisé sous les marques déposées Téflon, Hostalen, Hostaflon, Fluon ou Soreflon. La plus connue est Téflon de Du Pont de Nemours. (fr) Politetrafluoroetilena (PTFE) adalah sintetis. Senyawa polimer ini lebih dikenal dengan nama dagang Teflon. Teflon diciptakan oleh Roy J. Plunkett (1910–1994) di DuPont pada tahun 1938 dan diperkenalkan sebagai produk yang dikomersialkan pada tahun 1946. Senyawa ini merupakan fluoropolimer termoplastik. Teflon disebut juga polimer etilena fluorin. F F | | -(C - C)- | | n F F "Teflon" juga digunakan sebagai merek dagang polimer yang memiliki sifat serupa yaitu resin polimer perfluoroalkoksi (PFA): (in) Il politetrafluoroetilene (PTFE) è il polimero appartenente alla classe dei perfluorocarburi (PFC) derivante dall'omopolimerizzazione del tetrafluoroetene. Normalmente è più conosciuto attraverso le sue denominazioni commerciali Teflon, Fluon, Algoflon, Hostaflon, Inoflon e Guaflon, in cui al polimero vengono aggiunti altri componenti e per migliorarne le possibilità applicative, oppure cariche a base di silice, carbone, bronzo, inox e solfato di bario per incrementare le prestazioni in ambito meccanico, pneumatico o chimico, così come per applicazioni farmaceutiche. (it) | | | | | | | | | | | | rdfs:label | متعدد رباعي فلورو الإيثيلين (ar) Tefló (ca) Polytetrafluorethylen (cs) Polytetrafluorethylen (de) Πολυτετραφθοροαιθυλένιο (el) Polikvarfluoretileno (eo) Politetrafluoroetileno (es) Politetrafluoroetileno (eu) Polaiteitreafluaireitiléin (ga) Politetrafluoroetilena (in) Politetrafluoroetilene (it) Polytétrafluoroéthylène (fr) ポリテトラフルオロエチレン (ja) 폴리테트라플루오로에틸렌 (ko) Polytetrafluoroethylene (en) Poli(tetrafluoroetylen) (pl) Teflon (nl) Тефлон (ru) Politetrafluoretileno (pt) Polytetrafluoreten (sv) Політетрафторетилен (uk) 聚四氟乙烯 (zh) | | | | | | | | | | | | | | | owl:sameAs | freebase:Polytetrafluoroethylene http://ta.dbpedia.org/resource/டெஃப்லான் http://api.nytimes.com/svc/semantic/v2/concept/name/nytd_des/Teflon wikidata:Polytetrafluoroethylene wikidata:Polytetrafluoroethylene dbpedia-ar:Polytetrafluoroethylene http://azb.dbpedia.org/resource/تفلون dbpedia-bg:Polytetrafluoroethylene http://bn.dbpedia.org/resource/টেফলন 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