{"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\/de\/antioxidants-used-in-polymers\/","title":{"rendered":"In Polymeren verwendete Antioxidantien"},"content":{"rendered":"

(1) Phenolische Antioxidantien
\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) Phosphit-Antioxidantien
\nDie Hauptaufgabe des Phosphit-Antioxidationsmittels besteht darin, Hydroperoxide zu entfernen, denn nicht nur der Polymerabbau erzeugt Hydroperoxide, sondern auch das Hauptantioxidationsmittel, das den Zusatz von Hydroperoxiden verhindert. Daher sind Phosphit-Antioxidantien als Hilfs-Antioxidantien nicht sehr wirksam, wenn sie allein verwendet werden, haben aber eine bedeutende Wirkung, wenn sie zusammen mit dem Haupt-Antioxidans verwendet werden. Das repr\u00e4sentative Phosphit-Antioxidationsmittel 168 ist nach 1010 das am meisten produzierte und verbrauchte Antioxidationsmittel im Inland. 626 und 618 sind vor allem f\u00fcr die Hochtemperatur-Verarbeitung von Polymer-Materialien oder Produkte rund 300 \u2103, die Rolle der Polymer-Materialien, um effektiv zu verbessern die Best\u00e4ndigkeit gegen Hochtemperatur-thermische Oxidation, w\u00e4hrend die Aufrechterhaltung der guten Aussehen von Polymer-Produkten verwendet.
\n(3) Schwefelhaltige Antioxidantien
\nSchwefel-Antioxidantien und Phosphor-Antioxidantien \u00e4hnlich wie die Rolle der wichtigsten Rolle ist es, Hydroperoxide zu entfernen, sondern auch als Hilfsmittel Antioxidans. Inl\u00e4ndische Produktion von schwefelhaltigen Antioxidantien nach der molekularen Struktur kann in Schwefelester Antioxidantien, Schwefel Bisphenol Antioxidantien und Schwefel Ether phenolischen Antioxidantien 3 Sorten unterteilt werden. Thiobisphenol Antioxidans Molek\u00fcl enth\u00e4lt gehindert Phenol-Struktur, in der Polymer-Materialien zeigen eine hohe Sauerstoffbest\u00e4ndigkeit, Hitzebest\u00e4ndigkeit, in der Regel Thiobisphenol Antioxidans ist in der wichtigsten Art von gehinderten Phenol Antioxidans unterteilt.
\n(4) Metallionen-Passivator
\nMetallionen-Passivatoren enthalten Hydrazid-, Oxim- und Aldehyd-Amin-Kondensate und andere Koordinationsgruppen, die Metallionen komplexieren. Das repr\u00e4sentativste Produkt ist 1024, eine Verbindung vom Typ Dihydrazid, die auch eine kombinierte gehinderte Phenolfunktion enth\u00e4lt, die dem Produkt sowohl Kupferbest\u00e4ndigkeit als auch Best\u00e4ndigkeit gegen Hitze und Sauerstoffalterung verleiht.
\n(5) Antioxidantien aus aromatischen Aminen
\nAromatische Amin Antioxidantien werden durch die Kondensation von Aminophenol oder Hydrochinon mit Anilin, diese Art von Produkt ist dunkler in der Farbe, ist eine umweltsch\u00e4dliche Antioxidans, und die meisten der Produkte haben ein gewisses Ma\u00df an Toxizit\u00e4t, eine gro\u00dfe Anzahl von Gummi-Produkte, andere polymere Materialien, die Verwendung von weniger, und diese Art von Antioxidans ist auch bekannt als Antioxidans.<\/p>\n

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(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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