{"id":6415,"date":"2022-12-05T09:56:00","date_gmt":"2022-12-05T17:56:00","guid":{"rendered":"https:\/\/zetarmoulding.com\/?p=6415"},"modified":"2022-12-05T19:30:25","modified_gmt":"2022-12-06T03:30:25","slug":"test-methods-for-silicone-rubber","status":"publish","type":"post","link":"https:\/\/zetarmoulding.com\/tr\/si%cc%87li%cc%87kon-kaucuk-i%cc%87ci%cc%87n-test-yontemleri%cc%87\/","title":{"rendered":"Silikon kau\u00e7uk i\u00e7in test y\u00f6ntemleri"},"content":{"rendered":"

Silikon kau\u00e7u\u011fun alg\u0131lama \u00f6zelliklerinin organik ve inorganik maddeler aras\u0131nda oldu\u011fu s\u00f6ylenebilir. \u00c7e\u015fitli k\u00fc\u00e7\u00fck molek\u00fcller ve polimerler i\u00e7erir ve g\u0131da ile temas eden silikon kau\u00e7u\u011fun ortam\u0131 karma\u015f\u0131k ve \u00e7e\u015fitlidir.<\/strong><\/p>\n\n\n\n

G\u0131dan\u0131n kendisi su, alkol, asit ve ya\u011f olarak ayr\u0131labilir. Bu t\u00fcr buharl\u0131 pi\u015firici paspaslar, f\u0131r\u0131n paspaslar\u0131 vb. y\u00fcksek s\u0131cakl\u0131k ve y\u00fcksek nem ortamlar\u0131nda uzun s\u00fcre kullan\u0131lmal\u0131d\u0131r, bu nedenle analiz edilmesi zordur.<\/strong><\/p>\n\n\n\n

Toksik maddelerin analizi ve tespiti silikon kau\u00e7uk<\/a> kabaca iki yola ayr\u0131labilir. Birincisi, silikon kau\u00e7uk malzemelerdeki toksik maddelerin varl\u0131\u011f\u0131n\u0131 do\u011frudan ve niteliksel olarak tespit etmektir.<\/p>\n\n\n\n

\u00d6rne\u011fin, gaz kromatografisi-k\u00fctle spektrometresi, silikon kau\u00e7uk \u00fcr\u00fcnlerden g\u00f6\u00e7 eden siklosiloksan gibi toksik maddeleri do\u011frudan tespit etmek i\u00e7in gaz kromatografisinin y\u00fcksek verimlili\u011finden ve k\u00fctle spektrometresinin g\u00fc\u00e7l\u00fc niteliksel g\u00fcc\u00fcnden yararlanabilir.<\/p>\n\n\n\n

\u0130kinci olarak, ya\u015flanmadan \u00f6nce ve sonra silikon kau\u00e7u\u011fun molek\u00fcler yap\u0131 de\u011fi\u015fikliklerini analiz ederek, olas\u0131 toksik maddeleri belirlemek i\u00e7in ya\u015flanma mekanizmas\u0131 \u00e7\u0131kar\u0131labilir. \u015eu anda, k\u0131z\u0131l\u00f6tesi spektroskopi, n\u00fckleer manyetik rezonans ve di\u011fer analitik y\u00f6ntemler genellikle ya\u015flanma mekanizmas\u0131n\u0131 \u00e7\u0131karmak i\u00e7in kullan\u0131lmaktad\u0131r. silikon kau\u00e7uk<\/a>basit ve h\u0131zl\u0131.<\/p>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n

I. Silikon kau\u00e7uk test y\u00f6ntemi <\/mark><\/h2>\n\n\n\n

Gaz kromatografisi (GC) ve gaz kromatografisi-k\u00fctle spektrometresi (GC-MS)<\/strong><\/p>\n\n\n\n

\u015eu anda, GC ve GC-MS, g\u0131da ile temas eden u\u00e7ucu siklosiloksan i\u00e7in silikon kau\u00e7u\u011fun en yayg\u0131n kullan\u0131lan kalitatif ve kantitatif tespit y\u00f6ntemleri haline gelmi\u015ftir silikon kau\u00e7uk<\/a>.<\/p>\n\n\n\n

Y\u00f6ntem, g\u00fc\u00e7l\u00fc kromatografik ay\u0131rma kabiliyeti ve y\u00fcksek k\u00fctle spektrometresi \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc ile karma\u015f\u0131k u\u00e7ucu bile\u015fenlerin ayr\u0131lmas\u0131 ve analizi i\u00e7in uygundur. Y\u00fcksek ay\u0131rma verimlili\u011fi ve y\u00fcksek hassasiyet ile GC-MS teknolojisi g\u0131da g\u00fcvenli\u011fi, \u00e7evre kirlili\u011fi, g\u0131da ve pestisit kal\u0131nt\u0131s\u0131 tespiti ve di\u011fer alanlarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n

Siloksan kau\u00e7u\u011fun termal bozunmas\u0131 s\u00fcrecinde, k\u00fc\u00e7\u00fck dairesel siloksan molek\u00fclleri \u00fcretildi ve d\u00fc\u015f\u00fck molek\u00fcler a\u011f\u0131rl\u0131kl\u0131 dairesel siloksan silikon kau\u00e7uk \u00fcr\u00fcnler<\/a> GC-MS ile tespit edildi ve metil siklosiloksan en d\u00fc\u015f\u00fck tek bile\u015fene sahipti, tespit miktar\u0131 50mg\/kg idi.<\/p>\n\n\n\n

1 Ekim 2012 tarihinde, \"Silikon kau\u00e7ukta u\u00e7ucu metilsiklosiloksan kal\u0131nt\u0131lar\u0131n\u0131n belirlenmesi\" (GB\/T 28112-2011) uygulamas\u0131, silikon kau\u00e7ukta u\u00e7ucu siklosiloksan (D4~D10) kal\u0131nt\u0131 i\u00e7eri\u011finin belirlenmesi ilkesini ayr\u0131nt\u0131l\u0131 olarak a\u00e7\u0131klam\u0131\u015ft\u0131r. silikon kau\u00e7uk<\/a> gaz kromatografisi ile.<\/p>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n

2. Silikon kau\u00e7uk alg\u0131lama y\u00f6ntemi<\/mark><\/h2>\n\n\n\n

Fourier d\u00f6n\u00fc\u015f\u00fcml\u00fc k\u0131z\u0131l\u00f6tesi spektroskopisi (FTIR) ve n\u00fckleer manyetik rezonans (NMR)<\/strong><\/p>\n\n\n\n

FTIR ve NMR, organik yap\u0131lar\u0131n analizi i\u00e7in \u00f6nemli ara\u00e7lard\u0131r. silikon kau\u00e7uk<\/a> malzemeler. Bunlar aras\u0131nda k\u0131z\u0131l\u00f6tesi spektroskopi, silikon kau\u00e7uk malzemelerin bile\u015fimini belirlemek i\u00e7in \u00f6nemli bir y\u00f6ntemdir.<\/p>\n\n\n\n

NMR, molek\u00fcler iskelet yap\u0131s\u0131 hakk\u0131nda bilgi edinebilir ve silikon kau\u00e7u\u011fun mikro yap\u0131s\u0131n\u0131n incelenmesinde yayg\u0131n olarak kullan\u0131l\u0131r. K\u0131z\u0131l\u00f6tesi spektroskopi numune \u00f6n i\u015flemi gerektirmez, d\u00fc\u015f\u00fck maliyetlidir, y\u00fcksek verimlili\u011fe sahiptir ve kirlili\u011fi yoktur, bu nedenle g\u0131da end\u00fcstrisinde yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n

\u015eu anda, NMR tespiti silikon kau\u00e7uk<\/a> a\u011f\u0131rl\u0131kl\u0131 olarak t\u0131bbi alanda, end\u00fcstriyel alanda ve biyolojik alanda kullan\u0131l\u0131r.<\/p>\n\n\n\n

G\u0131da ile temas eden silikon kau\u00e7ukta g\u00f6\u00e7men toksik maddelerin tespitine ili\u015fkin az say\u0131da rapor olmas\u0131na ra\u011fmen, yabanc\u0131 akademisyenler n\u00fckleer manyetik rezonans kullanm\u0131\u015flard\u0131r.<\/p>\n\n\n\n

Siklosiloksanlar\u0131n d\u00fc\u015f\u00fck tespit limitleri ve \u00e7ok spesifik kalitatif ve kantitatif bilgilerle spektroskopik tespiti.<\/p>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n

3. Silikon kau\u00e7uk alg\u0131lama y\u00f6ntemi <\/mark><\/h2>\n\n\n\n

Termal analiz (TGA)<\/strong><\/p>\n\n\n\n

Termal analiz, bir maddenin belirli bir s\u0131cakl\u0131ktaki \u00f6zelliklerinin s\u0131cakl\u0131k veya zaman\u0131n bir fonksiyonu olarak \u00f6l\u00e7\u00fclmesidir. Termogravimetrik analiz (TGA), programlanm\u0131\u015f s\u0131cakl\u0131k kontrol\u00fc alt\u0131nda bir maddenin k\u00fctle-s\u0131cakl\u0131k ili\u015fkisini \u00f6l\u00e7mek i\u00e7in kullan\u0131lan bir tekniktir.<\/p>\n\n\n\n

\u0130lgili literat\u00fcr raporlar\u0131na g\u00f6re, termogravimetrik analiz a\u015fa\u011f\u0131dakilerin termal bozunma s\u00fcrecini incelemek ve tespit etmek i\u00e7in kullan\u0131labilir silikon kau\u00e7uk<\/a> termal kararl\u0131l\u0131\u011f\u0131n\u0131 belirlemek ve toksik maddelerin olas\u0131 g\u00f6\u00e7\u00fcn\u00fc analiz etmek.<\/p>\n\n\n\n

Polidimetilsiloksan ve montmorillonit nanokompozitlerin termal bozunma \u00fcr\u00fcnlerini tespit etmek i\u00e7in TGA y\u00f6ntemi kullan\u0131lm\u0131\u015ft\u0131r. Test sonu\u00e7lar\u0131 esas olarak insan v\u00fccuduna zararl\u0131d\u0131r ve d\u00fc\u015f\u00fck oligosiklosiloksan (D3-D7), metan, propilen, propiyonaldehit vb. i\u00e7eri\u011fine sahiptir.<\/p>\n\n\n\n

\u015eu anda, termal analiz y\u00f6ntemleri esas olarak a\u015fa\u011f\u0131dakilerin termal bozunma davran\u0131\u015f\u0131n\u0131 analiz etmek ve tespit etmek i\u00e7in kullan\u0131lmaktad\u0131r silikon kau\u00e7uk<\/a>. G\u0131da temas\u0131 i\u00e7in silikon kau\u00e7uktan ge\u00e7en toksik maddelerin do\u011frudan tespiti hakk\u0131nda \u00e7ok az rapor vard\u0131r, bu nedenle geni\u015f uygulama olanaklar\u0131na sahiptir.<\/p>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n

4. Silikon kau\u00e7uk alg\u0131lama y\u00f6ntemi<\/mark><\/h2>\n\n\n\n

\u0130nd\u00fcktif olarak e\u015fle\u015fmi\u015f plazma k\u00fctle spektrometrisi ve atomik absorpsiyon y\u00f6ntemi<\/strong><\/p>\n\n\n\n

D\u00fc\u015f\u00fck molek\u00fcl a\u011f\u0131rl\u0131kl\u0131 siklosiloksan ve di\u011fer toksik maddeleri \u00fcretmek i\u00e7in ya\u015flanma ve ayr\u0131\u015fmaya ek olarak, g\u0131da ile uzun s\u00fcreli temas nedeniyle, a\u011f\u0131r metal iyonlar\u0131n\u0131n yan\u0131 s\u0131ra silikon kau\u00e7uk \u00fcr\u00fcnler <\/a>yava\u015f yava\u015f g\u0131daya ge\u00e7ecek, insan v\u00fccudunu zenginle\u015ftirecek ve insan sa\u011fl\u0131\u011f\u0131 i\u00e7in tehdit olu\u015fturacakt\u0131r.<\/p>\n\n\n\n

Silikon kau\u00e7uktaki a\u011f\u0131r metal iyonlar\u0131n\u0131n tespiti i\u00e7in ind\u00fcktif olarak e\u015fle\u015fmi\u015f plazma k\u00fctle spektrometresi (ICP-MS) analiz teknikleri, atomik absorpsiyon ve di\u011fer analitik y\u00f6ntemlerle belirlenebilir.<\/p>\n\n\n\n

Kalay i\u00e7eri\u011fi silikon kau\u00e7uk<\/a> mikrodalga sindirim-alev atomik absorpsiyon spektrometresi ile belirlenmi\u015f ve farkl\u0131 sindirim ko\u015fullar\u0131n\u0131n, \u00f6l\u00e7\u00fcm dalga boyunun ve inorganik asit konsantrasyonunun kalay tayini \u00fczerindeki etkileri ara\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"

Silikon kau\u00e7u\u011fun alg\u0131lama \u00f6zelliklerinin organik ve inorganik maddeler aras\u0131nda oldu\u011fu s\u00f6ylenebilir. \u00c7e\u015fitli k\u00fc\u00e7\u00fck molek\u00fcller ve polimerler i\u00e7erir ve g\u0131da ile temas eden silikon kau\u00e7u\u011fun ortam\u0131 karma\u015f\u0131k ve \u00e7e\u015fitlidir. G\u0131dan\u0131n kendisi su, alkol, asit ve ya\u011f olarak ayr\u0131labilir. Bu t\u00fcr buharl\u0131 pi\u015firici paspaslar, f\u0131r\u0131n paspaslar\u0131 vb.<\/p>","protected":false},"author":1,"featured_media":6396,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/posts\/6415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/comments?post=6415"}],"version-history":[{"count":8,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/posts\/6415\/revisions"}],"predecessor-version":[{"id":6430,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/posts\/6415\/revisions\/6430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/media\/6396"}],"wp:attachment":[{"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/media?parent=6415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/categories?post=6415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmoulding.com\/tr\/wp-json\/wp\/v2\/tags?post=6415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}