{"id":7133,"date":"2019-11-01T20:26:57","date_gmt":"2019-11-01T20:26:57","guid":{"rendered":"https:\/\/nanovea.com\/?p=7133"},"modified":"2023-11-13T22:35:36","modified_gmt":"2023-11-13T22:35:36","slug":"polimerlerin-tribolojisi","status":"publish","type":"post","link":"https:\/\/nanovea.com\/tr\/polimerlerin-tribolojisi\/","title":{"rendered":"Polimerlerin Tribolojisi"},"content":{"rendered":"
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Giri\u015f<\/strong><\/em><\/span><\/p>\n

Polimerler \u00e7ok \u00e7e\u015fitli uygulamalarda yayg\u0131n olarak kullan\u0131lm\u0131\u015f ve g\u00fcnl\u00fck ya\u015fam\u0131n vazge\u00e7ilmez bir par\u00e7as\u0131 haline gelmi\u015ftir. Kehribar, ipek ve do\u011fal kau\u00e7uk gibi do\u011fal polimerler insanl\u0131k tarihinde \u00f6nemli bir rol oynam\u0131\u015ft\u0131r. Sentetik polimerlerin \u00fcretim s\u00fcreci, tokluk, viskoelastisite, kendinden ya\u011flama ve di\u011ferleri gibi benzersiz fiziksel \u00f6zellikler elde etmek i\u00e7in optimize edilebilir.<\/p>\n

Polimerlerde A\u015f\u0131nma ve S\u00fcrt\u00fcnmenin \u00d6nemi<\/i><\/u><\/strong><\/p>\n

Polimerler genellikle lastikler, rulmanlar ve konvey\u00f6r bantlar gibi tribolojik uygulamalar i\u00e7in kullan\u0131l\u0131r.
Polimerin mekanik \u00f6zelliklerine, temas ko\u015fullar\u0131na ve a\u015f\u0131nma i\u015flemi s\u0131ras\u0131nda olu\u015fan d\u00f6k\u00fcnt\u00fc veya transfer filminin \u00f6zelliklerine ba\u011fl\u0131 olarak farkl\u0131 a\u015f\u0131nma mekanizmalar\u0131 ortaya \u00e7\u0131kar. Polimerlerin hizmet ko\u015fullar\u0131 alt\u0131nda yeterli a\u015f\u0131nma direncine sahip oldu\u011fundan emin olmak i\u00e7in g\u00fcvenilir ve \u00f6l\u00e7\u00fclebilir tribolojik de\u011ferlendirme gereklidir. Tribolojik de\u011ferlendirme, hedef uygulamaya uygun malzeme aday\u0131n\u0131 se\u00e7mek i\u00e7in farkl\u0131 polimerlerin a\u015f\u0131nma davran\u0131\u015flar\u0131n\u0131 kontroll\u00fc ve izlenen bir \u015fekilde niceliksel olarak kar\u015f\u0131la\u015ft\u0131rmam\u0131z\u0131 sa\u011flar.<\/p>\n

Nanovea Tribometre, ISO ve ASTM uyumlu rotatif ve lineer modlar\u0131 kullanarak tekrarlanabilir a\u015f\u0131nma ve s\u00fcrt\u00fcnme testleri sunar ve iste\u011fe ba\u011fl\u0131 y\u00fcksek s\u0131cakl\u0131k a\u015f\u0131nma ve ya\u011flama mod\u00fclleri \u00f6nceden entegre edilmi\u015f tek bir sistemde mevcuttur. Bu e\u015fsiz \u00fcr\u00fcn yelpazesi, kullan\u0131c\u0131lar\u0131n yo\u011fun stres, a\u015f\u0131nma ve y\u00fcksek s\u0131cakl\u0131k gibi polimerlerin farkl\u0131 \u00e7al\u0131\u015fma ortamlar\u0131n\u0131 sim\u00fcle etmesine olanak tan\u0131r.<\/p>\n

\u00d6L\u00c7\u00dcM HEDEFI<\/i><\/u><\/strong><\/p>\n

Bu \u00e7al\u0131\u015fmada Nanovea'n\u0131n Tribometre<\/a> farkl\u0131 polimerlerin s\u00fcrt\u00fcnme ve a\u015f\u0131nma direncini iyi kontroll\u00fc ve niceliksel bir \u015fekilde kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in ideal bir ara\u00e7t\u0131r.<\/p>\n\n

\"\"<\/a><\/p>\n

TEST PROSED\u00dcR\u00dc<\/i><\/u><\/strong><\/p>\n

Farkl\u0131 yayg\u0131n polimerlerin s\u00fcrt\u00fcnme katsay\u0131s\u0131 (COF) ve a\u015f\u0131nma direnci Nanovea Tribometre ile de\u011ferlendirildi. Saya\u00e7 malzemesi olarak (pim, statik numune) bir Al2O3 topu kullan\u0131ld\u0131. Polimerler \u00fczerindeki a\u015f\u0131nma izleri (dinamik d\u00f6nen numuneler), bir temass\u0131z 3D profilometre<\/a> ve testler tamamland\u0131ktan sonra optik mikroskop. Bir se\u00e7enek olarak, a\u015f\u0131nma testi s\u0131ras\u0131nda pimin dinamik numuneye girdi\u011fi derinli\u011fi \u00f6l\u00e7mek i\u00e7in temass\u0131z bir endoskopik sens\u00f6r\u00fcn kullan\u0131labilece\u011fi unutulmamal\u0131d\u0131r. Test parametreleri Tablo 1'de \u00f6zetlenmi\u015ftir. A\u015f\u0131nma oran\u0131 K, K=Vl(Fxs) form\u00fcl\u00fc kullan\u0131larak de\u011ferlendirildi; burada V a\u015f\u0131nm\u0131\u015f hacim, F normal y\u00fck ve s kayma mesafesidir.<\/p>\n

Bu \u00e7al\u0131\u015fmada kar\u015f\u0131 malzeme olarak Al2O3 bilyelerin kullan\u0131ld\u0131\u011f\u0131n\u0131 l\u00fctfen unutmay\u0131n. Ger\u00e7ek uygulama ko\u015fullar\u0131 alt\u0131nda iki numunenin performans\u0131n\u0131 daha yak\u0131ndan sim\u00fcle etmek i\u00e7in herhangi bir kat\u0131 malzeme ikame edilebilir.<\/p>\n\n

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SONU\u00c7LAR VE TARTI\u015eMA<\/i><\/u><\/strong><\/p>\n

A\u015f\u0131nma h\u0131z\u0131, malzemelerin kullan\u0131m \u00f6mr\u00fcn\u00fc belirlemek i\u00e7in hayati bir fakt\u00f6rd\u00fcr, s\u00fcrt\u00fcnme ise tribolojik uygulamalar s\u0131ras\u0131nda kritik bir rol oynar. \u015eekil 2, a\u015f\u0131nma testleri s\u0131ras\u0131nda Al2O3 bilyeye kar\u015f\u0131 farkl\u0131 polimerler i\u00e7in COF'nin geli\u015fimini kar\u015f\u0131la\u015ft\u0131rmaktad\u0131r. COF, ar\u0131zalar\u0131n ne zaman meydana geldi\u011finin ve a\u015f\u0131nma s\u00fcrecinin yeni bir a\u015famaya girdi\u011finin bir g\u00f6stergesi olarak \u00e7al\u0131\u015f\u0131r. Test edilen polimerler aras\u0131nda YYPE, a\u015f\u0131nma testi boyunca ~0,15 ile en d\u00fc\u015f\u00fck sabit COF de\u011ferini korumaktad\u0131r. D\u00fczg\u00fcn COF, istikrarl\u0131 bir tribo temas\u0131n olu\u015ftu\u011fu anlam\u0131na gelir.<\/p>\n

\"\"<\/a><\/p>\n

\u015eekil 3 ve \u015eekil 4, test optik mikroskop taraf\u0131ndan \u00f6l\u00e7\u00fcld\u00fckten sonra polimer numunelerin a\u015f\u0131nma izlerini kar\u015f\u0131la\u015ft\u0131rmaktad\u0131r. In-situ temass\u0131z 3D profilometre, polimer numunelerin a\u015f\u0131nma hacmini hassas bir \u015fekilde belirleyerek s\u0131ras\u0131yla 0,0029, 0,0020 ve 0,0032m3\/N m a\u015f\u0131nma oranlar\u0131n\u0131n do\u011fru bir \u015fekilde hesaplanmas\u0131n\u0131 m\u00fcmk\u00fcn k\u0131lmaktad\u0131r. Kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, CPVC numunesi 0,1121m3\/N m ile en y\u00fcksek a\u015f\u0131nma oran\u0131n\u0131 g\u00f6stermektedir. CPVC'nin a\u015f\u0131nma izinde derin paralel a\u015f\u0131nma izleri mevcuttur.<\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n

SONU\u00c7<\/i><\/u><\/strong><\/p>\n

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Polimerlerin a\u015f\u0131nma direnci, hizmet performanslar\u0131nda hayati bir rol oynamaktad\u0131r. Bu \u00e7al\u0131\u015fmada, Nanovea Tribometre'nin farkl\u0131 polimerlerin s\u00fcrt\u00fcnme katsay\u0131s\u0131n\u0131 ve a\u015f\u0131nma oran\u0131n\u0131
iyi kontroll\u00fc ve kantitatif bir \u015fekilde. HDPE, test edilen polimerler aras\u0131nda ~0,15 ile en d\u00fc\u015f\u00fck COF de\u011ferini g\u00f6stermektedir. YYPE, Naylon 66 ve Polipropilen numuneleri s\u0131ras\u0131yla 0,0029, 0,0020 ve 0,0032 m3\/N m gibi d\u00fc\u015f\u00fck a\u015f\u0131nma oranlar\u0131na sahiptir. D\u00fc\u015f\u00fck s\u00fcrt\u00fcnme ve y\u00fcksek a\u015f\u0131nma direnci kombinasyonu, HDPE'yi polimer tribolojik uygulamalar\u0131 i\u00e7in iyi bir aday haline getirmektedir.<\/p>\n

In-situ temass\u0131z 3D profilometre, hassas a\u015f\u0131nma hacmi \u00f6l\u00e7\u00fcm\u00fc sa\u011flar ve a\u015f\u0131nma izlerinin ayr\u0131nt\u0131l\u0131 morfolojisini analiz etmek i\u00e7in bir ara\u00e7 sunarak a\u015f\u0131nma mekanizmalar\u0131n\u0131n temel anlay\u0131\u015f\u0131na daha fazla bilgi sa\u011flar<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u015eIMDI, BA\u015eVURUNUZ HAKKINDA KONU\u015eALIM<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tCANLI SOHBET<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Download PDF version Introduction Polymers have been used extensively in a wide variety of applications and have become an indispensable part of everyday life. Natural polymers such as amber, silk, and natural rubber have played an essential role in human history. The fabrication process of synthetic polymers can be optimized to achieve unique physical properties […]<\/p>","protected":false},"author":1,"featured_media":11715,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[7,349,355,335,373,336],"tags":[],"class_list":["post-7133","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-laboratory-testing","category-profilometry-volume-area","category-profilometry-testing","category-rotational-tribology","category-tribology-testing"],"_links":{"self":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/7133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/comments?post=7133"}],"version-history":[{"count":45,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/7133\/revisions"}],"predecessor-version":[{"id":23426,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/7133\/revisions\/23426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media\/11715"}],"wp:attachment":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media?parent=7133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/categories?post=7133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/tags?post=7133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}