{"id":4050,"date":"2012-12-04T01:53:04","date_gmt":"2012-12-03T23:53:04","guid":{"rendered":"http:\/\/www.ilkkimbuldu.com\/?p=4050"},"modified":"2018-02-28T13:51:11","modified_gmt":"2018-02-28T11:51:11","slug":"teflonu-kim-buldu","status":"publish","type":"post","link":"https:\/\/www.ilkkimbuldu.com\/?p=4050","title":{"rendered":"Teflonu kim buldu"},"content":{"rendered":"<p>Teflon, s\u0131ya, kimyev\u00ee maddelere, neme, elektrik atlamas\u0131na, s\u00fcrt\u00fcnmeye dayan\u0131kl\u0131 bir polimerin tic\u00e2r\u00ee ad\u0131d\u0131r. Teflonun monomerinin kimyev\u00ee ismi tetrafluoroetilen (TFE) olup, <strong>Du\u00a0Pont<\/strong> firmas\u0131ndan ba\u015fka di\u011fer firmalar taraf\u0131ndan da de\u011fi\u015fik isimlerde \u00fcretilmektedir.\u00a0<strong>Roy J. Plunkett<\/strong> taraf\u0131ndan bulundu ve geli\u015ftirmelerden sonra 1944 y\u0131l\u0131nda\u00a0piyasaya s\u00fcr\u00fcld\u00fc.<\/p>\n<p>Teflon, flor atomlar\u0131yla doymu\u015f uzun ve d\u00fcz bir karbon zincirinden meydana gelmi\u015f\u00a0molek\u00fcler yap\u0131ya s\u00e2hiptir. Karbon ve fluor atomlar\u0131 aras\u0131ndaki \u00e7ok kuvvetli kimyev\u00ee ba\u011flar sebebiyle,\u00a0ba\u015fka hi\u00e7bir polimerde bir arada bulunmayan \u00fcst\u00fcn \u00f6zelliklere s\u00e2hiptir. Teflon, -260\u00b0C ile +327\u00b0C\u00a0aras\u0131ndaki s\u0131cakl\u0131klara dayan\u0131kl\u0131d\u0131r. Hi\u00e7bir maddeye yap\u0131\u015fmaz, s\u00fcrt\u00fcnme katsay\u0131s\u0131 b\u00fct\u00fcn kat\u0131\u00a0cisimlerinkinden k\u00fc\u00e7\u00fckt\u00fcr. Elektrik\u00ee yal\u0131tkanl\u0131\u011f\u0131 her t\u00fcrl\u00fc \u015fartta b\u00fct\u00fcn yal\u0131tkanlardan \u00fcst\u00fcnd\u00fcr.<\/p>\n<p>Poli tetrafluoroetileni \u00eem\u00e2l eden iki firmadan Du Pont bu maddeye teflon; Allied Chemical ise halon\u00a0tic\u00e2r\u00ee isimlerini vermi\u015flerdir. Elde edilen polimer yap\u0131\u015fkan olmad\u0131\u011f\u0131, \u0131s\u0131ya ve mekanik bask\u0131lara\u00a0dayan\u0131kl\u0131 oldu\u011fu i\u00e7in kullanma maksad\u0131na g\u00f6re \u00f6zel kal\u0131plarda \u00e7ok b\u00fcy\u00fck bas\u0131n\u00e7lar alt\u0131nda 300-400\u00b0C<br \/>\ns\u0131cakl\u0131k alt\u0131nda sentezlenmek s\u00fbretiyle k\u00fct\u00fckler h\u00e2line sokulur.<\/p>\n<p>Erimi\u015f veya \u00e7\u00f6z\u00fcnm\u00fc\u015f h\u00e2ldeki saf sodyum, saf potasyum gibi alkali metaller, fluor gaz\u0131, y\u00fcksek\u00a0s\u0131cakl\u0131k ve bas\u0131n\u00e7 alt\u0131nda teflona etki eder. Bunun d\u0131\u015f\u0131nda ultraviyole \u0131\u015f\u0131nlar\u0131na, ozon, nem, s\u0131cakl\u0131k,\u00a0tuz ve benzeri maddelere dayan\u0131kl\u0131l\u0131\u011f\u0131yla metal, plastik, a\u011fa\u00e7, seramik gibi maddeler i\u00e7inde kullanma\u00a0\u00f6zellikleri en iyi olan m\u00fckemmel bir maddedir. Pahal\u0131 oldu\u011fu i\u00e7in kullanma sahas\u0131 dard\u0131r. Bununla\u00a0ber\u00e2ber \u00e7e\u015fitli san\u00e2yi kollar\u0131nda tercih edilmektedir.<\/p>\n<p>En \u00e7ok kullan\u0131ld\u0131\u011f\u0131 yerler y\u00fcksek \u0131s\u0131ya dayan\u0131kl\u0131 conta, ke\u00e7e, bant, vana seti, salmastra, ta\u015f\u0131y\u0131c\u0131 band\u00a0ve merd\u00e2neler, kimyev\u00ee maddelere dayan\u0131kl\u0131 boru, kar\u0131\u015ft\u0131r\u0131c\u0131, laboratuar cihazlar\u0131, filitre, diyafram,\u00a0elektrik gerilimlerine dayan\u0131kl\u0131 kablo yal\u0131tkan\u0131, izalat\u00f6r, elektrik\u00ee \u00e2letlere gerekli muhtelif yal\u0131tkan<br \/>\npar\u00e7alar ve makina san\u00e2yinde s\u00fcrt\u00fcnmeye dayan\u0131kl\u0131 ya\u011fs\u0131z yataklar ve bur\u00e7lar, k\u00f6pr\u00fc ve bin\u00e2lar i\u00e7in\u00a0kayar yataklar, segmanlar ve ya\u011f s\u0131y\u0131rma si\u011filleri, pn\u00f6matik ve hidrolik par\u00e7alar yap\u0131m\u0131 say\u0131labilir.\u00a0Teflonun metaller, plastikler ve di\u011fer maddelerle muk\u00e2yese edilmeyecek \u00f6l\u00e7\u00fcde \u00fcst\u00fcn vas\u0131flar\u0131<br \/>\nmevcuttur.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Teflon, s\u0131ya, kimyev\u00ee maddelere, neme, elektrik atlamas\u0131na, s\u00fcrt\u00fcnmeye dayan\u0131kl\u0131 bir polimerin tic\u00e2r\u00ee ad\u0131d\u0131r. Teflonun monomerinin kimyev\u00ee ismi tetrafluoroetilen (TFE) olup, Du\u00a0Pont firmas\u0131ndan ba\u015fka di\u011fer firmalar taraf\u0131ndan da de\u011fi\u015fik isimlerde \u00fcretilmektedir.\u00a0Roy&#8230;<\/p>\n","protected":false},"author":1,"featured_media":10393,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,317],"tags":[2131],"class_list":["post-4050","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ev","category-is-dunyasi","tag-teflon"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/4050"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4050"}],"version-history":[{"count":7,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/4050\/revisions"}],"predecessor-version":[{"id":10394,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/4050\/revisions\/10394"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/media\/10393"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}