{"id":8558,"date":"2025-05-13T06:50:10","date_gmt":"2025-05-13T06:50:10","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=8558"},"modified":"2026-04-27T11:15:57","modified_gmt":"2026-04-27T11:15:57","slug":"introduction-to-photoinitiators-and-their-standards","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/de\/introduction-to-photoinitiators-and-their-standards\/","title":{"rendered":"Einf\u00fchrung in Fotoinitiatoren und ihre Normen"},"content":{"rendered":"

Beschichtungsindustrie:
\nI\u3001Begriffe und Definitionen Photoinitiator (Photoinitiator), gem\u00e4\u00df GB\/T 41764-2022 \"Bestimmung des Gehalts an Photoinitiatoren in strahlenh\u00e4rtenden Beschichtungen Gaschromatographie-Massenspektrometrie-Methode\" in 3.1 beschrieben als: eine Substanz, die Strahlungsenergie absorbieren kann und sich durch Anregung chemisch ver\u00e4ndert, wobei reaktive Zwischenprodukte (freie Radikale oder Kationen) mit der F\u00e4higkeit, eine Polymerisation einzuleiten, entstehen.
\nII\u3001Relevante Normen GB\/T 41764-2022 'Bestimmung des Photoinitiatorgehalts in strahlenh\u00e4rtenden Beschichtungen Gaschromatographie-Massenspektrometrie' HG\/T 5778-2020 'Ultraviolett (UV) h\u00e4rtende Beschichtungen f\u00fcr kosmetische Verpackungsmaterialien' SN\/T 4317-2015 'Nachweis der Migration von 7 Photoinitiatoren in exportierten Lebensmitteln Fl\u00fcssigchromatographie-Massenspektrometrie\/Massenspektrometrie'.
\nIV\u3001Der Mechanismus und die Klassifizierung von Photoinitiatoren bei der direkten oder indirekten Absorption von Lichtenergie, die Initiatormolek\u00fcle aus dem Grundzustand sprang in den angeregten ein-linearen Zustand, durch die Inter-Systeme scurry Sprung in den angeregten drei-linearen Zustand. Im angeregten unilinearen oder trilinearen Zustand kann nach einer einmolekularen oder bimolekularen chemischen Einwirkung die Produktion der Monomerpolymerisation durch die aktiven Fragmente (freie Radikale, Kationen, Anionen usw.) ausgel\u00f6st werden, wodurch die Aush\u00e4rtung der Monomerpolymerisation durch Vernetzung ausgel\u00f6st wird. Es gibt viele Arten von Photoinitiatoren. Entsprechend den unterschiedlichen Ausl\u00f6semechanismen lassen sich die Fotoinitiatoren in kationische Fotoinitiatoren und radikalische Fotoinitiatoren unterteilen, von denen die radikalischen Fotoinitiatoren den gr\u00f6\u00dften Anwendungsbereich haben.<\/p>\n

4. Verschiedene g\u00e4ngige Fotoinitiatoren und ihre Anwendungsbereiche
\n907 und ITX oder DETX Fotoinitiatoren in Verbindung mit dem farbigen System, die wichtigsten Anwendungsbereiche f\u00fcr Heimdekoration, etc.; 1173 und TPO mit besseren Aush\u00e4rtungseffekt, die wichtigsten Anwendungsbereiche f\u00fcr M\u00f6bel und Holzlack, Bodenbeschichtungen, Heimdekoration, Die wichtigsten Anwendungsbereiche sind: M\u00f6bel Holzlack, Bodenbeschichtung, 3C elektronische Beschichtung, Automobil-Interieur, Heimdekoration, Kunststoff-Produkte, etc. 184 kann mit TPO und anderen vergilbungsarmen Fotoinitiatoren im wei\u00dfen System verwendet werden. Die Hauptanwendungsgebiete sind: M\u00f6belholzlacke, Bodenbeschichtungen, 3C-Elektronikbeschichtungen, Autoinnenausstattung, Wohndekoration, Kunststoffprodukte, etc.
\n1. 184
\nDie maximale Absorptionswellenl\u00e4nge betr\u00e4gt 333 nm, haupts\u00e4chlich verwendet, um die schnelle Aush\u00e4rtung von Acrylat-und Methacrylat-Systeme, Referenz-Dosierung von 2% bis 4%, Aush\u00e4rtungszeit von 190 s und 140 s, jeweils zu initiieren.<\/p>\n

Alias: 1-Hydroxycyclohexylphenylketon
\nEnglischer Name: 1-Hydroxycyclohexyl phenyl ketone
\nCAS-Nr.: 947-19-3<\/a>
\nErscheinungsbild: Wei\u00dfes oder cremefarbenes Kristall
\nDurchl\u00e4ssigkeit: 425nm\u226598.0%, 500nm\u226599.0% (1g\/10mL Toluol)
\nAbsorptionsspitze: 246nm, 280nm, 333nm (in Methanoll\u00f6sung)
\nL\u00f6slichkeit: 20\u2103 (g\/100g L\u00f6sung)<\/p>\n

2. 907
\n907 kann bei der Tintenh\u00e4rtung die Absorption von UV-Strahlungsenergie und die Bildung von freien Radikalen oder Kationen sein, die die Monomer- und Oligomer-Polymerisation, Vernetzungs- und Pfropfungsreaktionen in sehr kurzer Zeit ausl\u00f6sen, um die Tinte zu einer dreidimensionalen Netzstruktur von Polymeren auszuh\u00e4rten.<\/p>\n

Alias: 2-Methyl-1-(4-methylthiophenyl)-2-morpholinyl-1-propanon
\nCAS-Nr.: 71868-10-5<\/a>
\nErscheinungsbild: Wei\u00dfes kristallines Pulver
\nDurchl\u00e4ssigkeit: 425nm\u226590.0%, 500nm\u226595.0% (1g\/10mL Toluol)
\nAbsorptionsspitze: 230nm, 304nm (in Methanoll\u00f6sung)
\nL\u00f6slichkeit: 20\u2103 (g\/100g L\u00f6sung)<\/p>\n

V\u3001Der Entwicklungstrend von Fotoinitiatoren Fotoinitiatoren zus\u00e4tzlich zur Erf\u00fcllung von Umweltanforderungen wie einige Normen (z. B. lebensmittelechte Beschichtungen) auf den R\u00fcckstand von Fotoinitiatoren haben strenge Grenzen, in Bezug auf die Leistung m\u00fcssen einen hohen molaren Extinktionskoeffizienten, geringe Toxizit\u00e4t, gute L\u00f6slichkeit und andere Eigenschaften, und spektrale \u00dcbereinstimmung mit der Lichtquelle haben.
\nMit der Verbesserung des \u00f6ffentlichen Sicherheitsbewusstseins wird die Sicherheit von Lebensmittel- und Medikamentenverpackungen immer wichtiger, so dass Europa strenge Vorschriften f\u00fcr Lebensmittel- und Medikamentenverpackungstinten entwickelt hat. Weltweit werden Makromolek\u00fcl-Photoinitiatoren aufgrund ihrer Vorteile der geringen Toxizit\u00e4t und der geringen Migration mehr und mehr in Verpackungstinten verwendet, so dass die Entwicklung von mehr Arten von Makromolek\u00fcl-Photoinitiatoren der Entwicklungstrend f\u00fcr die Produkte der Branche ist.
\nFormulierte Produkte, die aus kationischen Photoinitiatoren und unterst\u00fctzenden Harzen und Monomeren bestehen, haben den Vorteil, dass sie die Oxidation und Polymerisation blockieren und eine geringe Schrumpfung des Systems bewirken, was das radikalisch h\u00e4rtende System erg\u00e4nzen kann. Die k\u00fcnftige Anwendung von kationisch h\u00e4rtenden Produkten oder die gemischte Verwendung mit radikalisch h\u00e4rtenden Produkten hat Entwicklungsperspektiven, so dass der kationische Photoinitiator auch eine der Produkt- und Technologieentwicklungsrichtungen ist.<\/p>\n

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Coating industry: I\u3001Terms and definitions photoinitiator (photoinitiator), according to GB\/T 41764-2022 \u2018Determination of the content of photoinitiators in radiation-curing coatings Gas Chromatography-Mass Spectrometry Method\u2019 in 3.1 described as: a substance that can absorb radiant…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185],"tags":[],"class_list":["post-8558","post","type-post","status-publish","format-standard","hentry","category-photoinitiator"],"yoast_head":"\nIntroduction to photoinitiators and their standards - Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Coating industry: I\u3001Terms and definitions photoinitiator (photoinitiator), according to GB\/T 41764-2022 \u2018Determination of the content of photoinitiators...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/changhongchemical.com\/de\/introduction-to-photoinitiators-and-their-standards\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction to photoinitiators and their standards - 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