{"id":9335,"date":"2020-11-13T00:21:49","date_gmt":"2020-11-13T00:21:49","guid":{"rendered":"https:\/\/nanovea.com\/?p=9335"},"modified":"2025-11-11T20:16:47","modified_gmt":"2025-11-11T20:16:47","slug":"dinamik-mekanik-analiz-frekans-supurme-polimer-uzerinde","status":"publish","type":"post","link":"https:\/\/nanovea.com\/tr\/dinamik-mekanik-analiz-frekans-supurme-polimer-uzerinde\/","title":{"rendered":"Polimer \u00dczerinde Dinamik Mekanik Analiz (DMA) Frekans Taramas\u0131"},"content":{"rendered":"
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DMA FREKANS TARAMASI<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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NANOINDENTASYON KULLANARAK POLIMER \u00dcZERINDE<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Taraf\u0131ndan haz\u0131rlanm\u0131\u015ft\u0131r<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Duanjie Li, PhD<\/h2>\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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G\u0130R\u0130\u015e<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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DI\u0307NAMI\u0307K MEKANI\u0307K ANALI\u0307Z FREKANS TARAMA TESTI\u0307NI\u0307N \u00d6NEMI\u0307<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Gerilimin de\u011fi\u015fen frekans\u0131 s\u0131kl\u0131kla polimerlerin kritik bir mekanik \u00f6zelli\u011fi olan karma\u015f\u0131k mod\u00fclde de\u011fi\u015fikliklere yol a\u00e7ar. \u00d6rne\u011fin, ara\u00e7lar yolda giderken lastikler d\u00f6ng\u00fcsel olarak y\u00fcksek deformasyonlara maruz kal\u0131r. Ara\u00e7 daha y\u00fcksek h\u0131zlara \u00e7\u0131kt\u0131k\u00e7a bas\u0131n\u00e7 ve deformasyonun s\u0131kl\u0131\u011f\u0131 de\u011fi\u015fir. B\u00f6yle bir de\u011fi\u015fiklik, otomobilin performans\u0131nda \u00f6nemli fakt\u00f6rler olan lasti\u011fin viskoelastik \u00f6zelliklerinde de\u011fi\u015fikli\u011fe neden olabilir. Polimerlerin farkl\u0131 frekanslardaki viskoelastik davran\u0131\u015f\u0131n\u0131n g\u00fcvenilir ve tekrarlanabilir bir testine ihtiya\u00e7 vard\u0131r. NANOVEA'n\u0131n Nano mod\u00fcl\u00fc Mekanik Test Cihaz\u0131 <\/a>Y\u00fcksek hassasiyetli bir piezo akt\u00fcat\u00f6r arac\u0131l\u0131\u011f\u0131yla sin\u00fczoidal y\u00fck olu\u015fturur ve ultra hassas y\u00fck h\u00fccresi ve kapasit\u00f6r kullanarak kuvvet ve yer de\u011fi\u015ftirme geli\u015fimini do\u011frudan \u00f6l\u00e7er. Kolay kurulum ve y\u00fcksek do\u011frulu\u011fun birle\u015fimi, onu Dinamik Mekanik Analiz frekans taramas\u0131 i\u00e7in ideal bir ara\u00e7 haline getirir.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Viskoelastik malzemeler deformasyona u\u011frad\u0131klar\u0131nda hem viskoz hem de elastik \u00f6zellikler sergilerler. Polimer malzemelerdeki uzun molek\u00fcler zincirler, benzersiz viskoelastik \u00f6zelliklerine, yani hem elastik kat\u0131lar\u0131n hem de Newton s\u0131v\u0131lar\u0131n\u0131n \u00f6zelliklerinin bir kombinasyonuna katk\u0131da bulunur. Stres, s\u0131cakl\u0131k, frekans ve di\u011fer fakt\u00f6rlerin t\u00fcm\u00fc viskoelastik \u00f6zelliklerde rol oynar. DMA olarak da bilinen Dinamik Mekanik Analiz, sin\u00fczoidal bir stres uygulayarak ve gerinim de\u011fi\u015fimini \u00f6l\u00e7erek malzemenin viskoelastik davran\u0131\u015f\u0131n\u0131 ve karma\u015f\u0131k mod\u00fcl\u00fcn\u00fc inceler.<\/p>\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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\u00d6L\u00c7\u00dcM HEDEFI<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Bu uygulamada, En G\u00fc\u00e7l\u00fc Mekanik Test Cihaz\u0131 NANOVEA PB1000'i kullanarak farkl\u0131 DMA frekanslar\u0131nda cilalanm\u0131\u015f bir lastik numunesinin viskoelastik \u00f6zelliklerini inceliyoruz. Nanoindentasyon<\/a> Mod.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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NANOVEA<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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PB1000<\/p>\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

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TEST KO\u015eULLARI<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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FREKANSLAR (Hz):<\/h2>\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
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0.1, 1.5, 10, 20<\/i><\/h2>\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\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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HER FREKANSTA S\u00dcR\u00dcNME S\u00dcRESI.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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50 saniye<\/h2>\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
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SALINIM GERILIMI<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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0.1 V<\/h2>\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
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Y\u00dcKLEME GERILIMI<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1 V<\/h2>\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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girinti tipi<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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K\u00fcresel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Elmas | 100 \u03bcm<\/h2>\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
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SONU\u00c7LAR & TARTI\u015eMA<\/i><\/h2>\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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Maksimum y\u00fckte Dinamik Mekanik Analiz frekans taramas\u0131, tek bir testte farkl\u0131 y\u00fckleme frekanslar\u0131nda numunenin viskoelastik \u00f6zelliklerinin h\u0131zl\u0131 ve basit bir \u015fekilde \u00f6l\u00e7\u00fclmesini sa\u011flar. Farkl\u0131 frekanslardaki y\u00fck ve yer de\u011fi\u015ftirme dalgalar\u0131n\u0131n faz kaymas\u0131 ve genlikleri, a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli temel malzeme viskoelastik \u00f6zelliklerini hesaplamak i\u00e7in kullan\u0131labilir Depolama Mod\u00fcl\u00fc<\/i>, Kay\u0131p Mod\u00fcl\u00fc<\/i> ve Tan (\u03b4)<\/i> A\u015fa\u011f\u0131daki grafiklerde \u00f6zetlendi\u011fi gibi.\u00a0<\/p>

Bu \u00e7al\u0131\u015fmada 1, 5, 10 ve 20 Hz'lik frekanslar saatte yakla\u015f\u0131k 7, 33, 67 ve 134 km'lik h\u0131zlara kar\u015f\u0131l\u0131k gelmektedir. Test frekans\u0131 0,1 ila 20 Hz aras\u0131nda artt\u0131k\u00e7a, hem Depolama Mod\u00fcl\u00fcn\u00fcn hem de Kay\u0131p Mod\u00fcl\u00fcn\u00fcn kademeli olarak artt\u0131\u011f\u0131 g\u00f6zlemlenebilir. Tan (\u03b4), frekans 0,1'den 1 Hz'e y\u00fckseldik\u00e7e ~0,27'den 0,18'e d\u00fc\u015fmekte ve 20 Hz frekansa ula\u015f\u0131ld\u0131\u011f\u0131nda kademeli olarak ~0,55'e y\u00fckselmektedir. DMA frekans taramas\u0131, polimerlerin cams\u0131 ge\u00e7i\u015finin yan\u0131 s\u0131ra monomerlerin hareketi ve \u00e7apraz ba\u011flanma hakk\u0131nda bilgi sa\u011flayan Depolama Mod\u00fcl\u00fc, Kay\u0131p Mod\u00fcl\u00fc ve Tan (\u03b4) e\u011filimlerinin \u00f6l\u00e7\u00fclmesine olanak tan\u0131r. Frekans taramas\u0131 s\u0131ras\u0131nda bir \u0131s\u0131tma plakas\u0131 kullanarak s\u0131cakl\u0131\u011f\u0131 y\u00fckselterek, farkl\u0131 test ko\u015fullar\u0131 alt\u0131nda molek\u00fcler hareketin do\u011fas\u0131n\u0131n daha eksiksiz bir resmi elde edilebilir.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Y\u00dcK VE DERI\u0307NLI\u0307\u011eI\u0307N EVRI\u0307MI\u0307<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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TAM DMA FREKANS TARAMASININ<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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FARKLI FREKANSLARDA Y\u00dcK VE DER\u0130NL\u0130K vs ZAMAN<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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DEPOLAMA MOD\u00dcL\u00dc<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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FARKLI FREKANSLARDA<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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KAYIP MOD\u00dcL\u00dc<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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FARKLI FREKANSLARDA<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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TAN (\u03b4) <\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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FARKLI FREKANSLARDA<\/i><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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SONU\u00c7<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Bu \u00e7al\u0131\u015fmada, NANOVEA Mekanik Test Cihaz\u0131n\u0131n bir lastik numunesi \u00fczerinde Dinamik Mekanik Analiz frekans tarama testini ger\u00e7ekle\u015ftirme kapasitesini sergiledik. Bu test, lasti\u011fin viskoelastik \u00f6zelliklerini farkl\u0131 stres frekanslar\u0131nda \u00f6l\u00e7er. Lastik, y\u00fckleme frekans\u0131 0,1 ila 20 Hz aras\u0131nda artt\u0131k\u00e7a artan depolama ve kay\u0131p mod\u00fcl\u00fc g\u00f6sterir. Farkl\u0131 h\u0131zlarda \u00e7al\u0131\u015fan lasti\u011fin viskoelastik davran\u0131\u015flar\u0131 hakk\u0131nda yararl\u0131 bilgiler sa\u011flar, bu da daha yumu\u015fak ve daha g\u00fcvenli s\u00fcr\u00fc\u015fler i\u00e7in lastiklerin performans\u0131n\u0131 iyile\u015ftirmede \u00e7ok \u00f6nemlidir. DMA frekans tarama testi, lasti\u011fin farkl\u0131 hava ko\u015fullar\u0131ndaki ger\u00e7ek\u00e7i \u00e7al\u0131\u015fma ortam\u0131n\u0131 taklit etmek i\u00e7in \u00e7e\u015fitli s\u0131cakl\u0131klarda ger\u00e7ekle\u015ftirilebilir.<\/p>

NANOVEA Mekanik Test Cihaz\u0131n\u0131n Nano Mod\u00fcl\u00fcnde, h\u0131zl\u0131 piezo ile y\u00fck uygulamas\u0131, ayr\u0131 bir y\u00fcksek hassasiyetli gerinim \u00f6l\u00e7er ile yap\u0131lan y\u00fck \u00f6l\u00e7\u00fcm\u00fcnden ba\u011f\u0131ms\u0131zd\u0131r. Bu, Dinamik Mekanik Analiz s\u0131ras\u0131nda belirgin bir avantaj sa\u011flar, \u00e7\u00fcnk\u00fc derinlik ve y\u00fck aras\u0131ndaki faz do\u011frudan sens\u00f6rden toplanan verilerden \u00f6l\u00e7\u00fcl\u00fcr. Faz hesaplamas\u0131 do\u011frudan yap\u0131l\u0131r ve elde edilen kay\u0131p ve depolama mod\u00fcl\u00fcne yanl\u0131\u015fl\u0131k katan matematiksel modellemeye ihtiya\u00e7 duyulmaz. Bobin tabanl\u0131 bir sistem i\u00e7in durum b\u00f6yle de\u011fildir.<\/p>

Sonu\u00e7 olarak, DMA temas derinli\u011fi, zaman ve frekans\u0131n bir fonksiyonu olarak kay\u0131p ve depolama mod\u00fcl\u00fcn\u00fc, kompleks mod\u00fcl\u00fc ve Tan'\u0131 (\u03b4) \u00f6l\u00e7er. \u0130ste\u011fe ba\u011fl\u0131 \u0131s\u0131tma a\u015famas\u0131, DMA s\u0131ras\u0131nda malzemelerin faz ge\u00e7i\u015f s\u0131cakl\u0131\u011f\u0131n\u0131n belirlenmesini sa\u011flar. NANOVEA Mekanik Test Cihazlar\u0131, tek bir platformda benzersiz \u00e7ok fonksiyonlu Nano ve Mikro mod\u00fcller sa\u011flar. Hem Nano hem de Mikro mod\u00fcller \u00e7izik test cihaz\u0131, sertlik test cihaz\u0131 ve a\u015f\u0131nma test cihaz\u0131 modlar\u0131n\u0131 i\u00e7erir ve tek bir mod\u00fclde mevcut olan en geni\u015f ve en kullan\u0131c\u0131 dostu test aral\u0131\u011f\u0131n\u0131 sa\u011flar.<\/p>\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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Benzer bir uygulaman\u0131z var m\u0131?<\/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\t\u015eIMDI BIR UZMANLA G\u00d6R\u00dc\u015e\u00dcN<\/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
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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\tFI\u0307YATLANDIRMA VE DETAYLARI HIZLI ALIN<\/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":"

DMA FREQUENCY SWEEP ON POLYMER USING NANOINDENTATION Prepared by Duanjie Li, PhD INTRODUCTION IMPORTANCE OF DYNAMIC MECHANICAL ANALYSIS FREQUENCY SWEEP TEST The changing frequency of the stress often leads to variations in the complex modulus, which is a critical mechanical property of polymers. For example, tires are subjected to cyclical high deformations when vehicles are […]<\/p>","protected":false},"author":7,"featured_media":11666,"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":[7,338,343,349,337],"tags":[],"class_list":["post-9335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-indentation-hardness-elastic","category-loss-storage","category-laboratory-testing","category-mechanical-testing"],"_links":{"self":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/9335","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\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/comments?post=9335"}],"version-history":[{"count":77,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/9335\/revisions"}],"predecessor-version":[{"id":25213,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/9335\/revisions\/25213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media\/11666"}],"wp:attachment":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media?parent=9335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/categories?post=9335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/tags?post=9335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}