{"id":8639,"date":"2025-05-16T06:54:57","date_gmt":"2025-05-16T06:54:57","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=8639"},"modified":"2026-04-27T11:18:16","modified_gmt":"2026-04-27T11:18:16","slug":"antioxidants-used-in-polymers","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/tr\/antioxidants-used-in-polymers\/","title":{"rendered":"Polimerlerde kullan\u0131lan antioksidanlar"},"content":{"rendered":"

(1) Fenolik antioksidanlar
\nPhenolic antioxidants are the most widely used and most abundant antioxidants in polymer materials. The phenolic hydroxyl group in phenolic antioxidants can release active hydrogen to capture the \u2018key offender\u2019 free radicals in polymer degradation. Natural products such as VE, tea polyphenols, and low molecular compounds such as 2,6-di-tert-butylphenol (BHT) are phenolic antioxidants. Hindered phenolic antioxidants are a class of compounds with substituents on one or both sides of the hydroxyl group (-OH) on the benzene ring. Because the hydroxyl group is spatially hindered, the H atom is easily dislodged from the molecule with peroxyl radicals (ROO .) , alkoxyl radicals (RO.), hydroxyl radicals (.OH), etc. to combine to make them inactive, thus terminating the chain reaction of thermo-oxidative aging. Hindered phenolic antioxidants are non-polluting products and are suitable for colourless or light-coloured products. Moreover, hindered phenolic antioxidants have large molecular weight, good compatibility with polymer materials and low toxicity, so the consumption ratio of high molecular weight hindered phenolic varieties represented by 1010<\/a> and 1076 increases year by year, while 1010 becomes the most excellent product among polymer antioxidants with high molecular weight, good compatibility with polymer materials, excellent antioxidant effect, good safety, and the largest consumption.
\n(2) Fosfit antioksidanlar
\nFosfit antioksidan\u0131n ana rol\u00fc hidroperoksitleri gidermektir, sadece polimer bozunmas\u0131 hidroperoksitler \u00fcretmez ve ayn\u0131 zamanda hidroperoksitlerin eklenmesini engelleyen ana antioksidan da hidroperoksitler \u00fcretecektir. Bu nedenle, yard\u0131mc\u0131 antioksidan olarak fosfit antioksidanlar tek ba\u015flar\u0131na kullan\u0131ld\u0131klar\u0131nda \u00e7ok etkili olmamakla birlikte, ana antioksidanla birlikte kullan\u0131ld\u0131klar\u0131nda \u00f6nemli bir etkiye sahiptirler. Fosfit antioksidan\u0131 temsil eden \u00fcr\u00fcn 168, antioksidan \u00e7e\u015fitlerinin yerli \u00fcretim ve t\u00fcketiminde 1010'dan sonra ikinci s\u0131radad\u0131r. 626 ve 618 esas olarak polimer malzemelerin veya 300 \u2103 civar\u0131ndaki \u00fcr\u00fcnlerin y\u00fcksek s\u0131cakl\u0131kta i\u015flenmesi i\u00e7in kullan\u0131l\u0131r, polimer malzemelerin rol\u00fc, polimer \u00fcr\u00fcnlerin iyi g\u00f6r\u00fcn\u00fcm\u00fcn\u00fc korurken, y\u00fcksek s\u0131cakl\u0131kta termal oksidasyona kar\u015f\u0131 direnci etkili bir \u015fekilde iyile\u015ftirmektir.
\n(3) S\u00fclf\u00fcr antioksidanlar\u0131
\nK\u00fck\u00fcrt antioksidanlar\u0131 ve fosfor antioksidanlar\u0131n\u0131n rol\u00fcne benzer \u015fekilde ana rol hidroperoksitleri gidermektir, ayn\u0131 zamanda yard\u0131mc\u0131 bir antioksidan olarak da kullan\u0131l\u0131r. Molek\u00fcler yap\u0131ya g\u00f6re k\u00fck\u00fcrt i\u00e7eren antioksidanlar\u0131n yerli \u00fcretimi, k\u00fck\u00fcrt ester antioksidanlar, k\u00fck\u00fcrt bisfenol antioksidanlar ve k\u00fck\u00fcrt eter fenolik antioksidanlar olmak \u00fczere 3 \u00e7e\u015fide ayr\u0131labilir. Tiyobisfenol antioksidan molek\u00fcl\u00fc engellenmi\u015f fenol yap\u0131s\u0131 i\u00e7erir, polimer malzemelerde y\u00fcksek oksijen direnci, \u0131s\u0131 direnci g\u00f6sterir, genellikle tiyobisfenol antioksidan ana engellenmi\u015f fenol antioksidan tipine ayr\u0131l\u0131r.
\n(4) Metal iyon pasifle\u015ftirici
\nMetal iyon pasifle\u015ftiriciler hidrazid, oksim ve aldehit-amin kondensat\u0131 ve di\u011fer koordinasyon gruplar\u0131, metal iyonlar\u0131n\u0131n kompleksle\u015fmesini i\u00e7erir. En temsili \u00fcr\u00fcn, dihidrazid tipi bir bile\u015fik olan ve ayn\u0131 zamanda \u00fcr\u00fcne hem bak\u0131r direnci hem de \u0131s\u0131 ve oksijen ya\u015flanmas\u0131na kar\u015f\u0131 diren\u00e7 kazand\u0131ran birle\u015fik engellenmi\u015f fenol fonksiyonel grubu i\u00e7eren 1024't\u00fcr.
\n(5) Aromatik amin antioksidanlar
\nAromatik amin antioksidanlar, aminofenol veya hidrokinonun anilin ile yo\u011funla\u015ft\u0131r\u0131lmas\u0131yla \u00fcretilir, bu t\u00fcr \u00fcr\u00fcn daha koyu renklidir, kirletici bir antioksidand\u0131r ve \u00fcr\u00fcnlerin \u00e7o\u011fu belirli bir toksisite derecesine sahiptir, \u00e7ok say\u0131da kau\u00e7uk \u00fcr\u00fcn, di\u011fer polimer malzemeler, daha az kullan\u0131m ve bu t\u00fcr antioksidan antioksidan olarak da bilinir.<\/p>\n

\u015eimdi Bize Ula\u015f\u0131n!<\/b><\/strong><\/h1>\n

Fiyata ihtiyac\u0131n\u0131z varsa, l\u00fctfen a\u015fa\u011f\u0131daki forma ileti\u015fim bilgilerinizi doldurun, genellikle 24 saat i\u00e7inde sizinle ileti\u015fime ge\u00e7ece\u011fiz. Bana e-posta da g\u00f6nderebilirsiniz\u00a0info@changhongchemical.com<\/a><\/span>\u00a0\u00c7al\u0131\u015fma saatleri i\u00e7inde (8:30 - 6:00 UTC+8 Pzt.~Sat.) veya h\u0131zl\u0131 yan\u0131t almak i\u00e7in web sitesi canl\u0131 sohbetini kullan\u0131n.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"

(1) Phenolic antioxidants Phenolic antioxidants are the most widely used and most abundant antioxidants in polymer materials. The phenolic hydroxyl group in phenolic antioxidants can release active hydrogen to capture the \u2018key offender\u2019 free…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152],"tags":[],"class_list":["post-8639","post","type-post","status-publish","format-standard","hentry","category-antioxidant"],"yoast_head":"\nAntioxidants used in polymers - Changhong Chemical<\/title>\n<meta name=\"description\" content=\"(1) Phenolic antioxidants Phenolic antioxidants are the most widely used and most abundant antioxidants in polymer materials. 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