{"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\/nl\/introduction-to-photoinitiators-and-their-standards\/","title":{"rendered":"Inleiding tot fotoinitiatoren en hun standaarden"},"content":{"rendered":"

Coatingindustrie:
\nI\u3001Termen en definities fotoinitiator (fotoinitiator), volgens GB\/T 41764-2022 'Determination of the content of photoinitiators in radiation-curing coatings Gas Chromatography-Mass Spectrometry Method' in 3.1 omschreven als: een stof die stralingsenergie kan absorberen en chemische veranderingen ondergaat door excitatie, waarbij reactieve tussenproducten (vrije radicalen of kationen) ontstaan die polymerisatie kunnen initi\u00ebren.
\nII\u3001Relevante normen GB\/T 41764-2022 'Bepaling van het gehalte aan fotoinitiatoren in stralingsuithardende coatings Gaschromatografie-massaspectrometrie' HG\/T 5778-2020 'Ultraviolet (UV) uithardende coatings voor cosmetische verpakkingsmaterialen' SN\/T 4317-2015 'Detectie van migratie van 7 fotoinitiatoren in ge\u00ebxporteerd voedsel Vloeistofchromatografie-massaspectrometrie\/massaspectrometrie'.
\nIV, Het mechanisme en de classificatie van fotoinitiatoren in de directe of indirecte absorptie van lichtenergie, de initiator moleculen uit de basistoestand sprong naar de aangeslagen enkel-lineaire toestand, via de inter-systemen scurry sprong naar de aangeslagen drie-lineaire toestand. In de ge\u00ebxciteerde unilineaire of trilineaire toestand na een chemische actie van \u00e9\u00e9n enkel molecuul of bimoleculair, kan de productie van monomeerpolymerisatie worden geactiveerd door de actieve fragmenten (vrije radicalen, kationen, anionen, enz.), waardoor het uitharden van monomeerpolymerisatie crosslinking wordt geactiveerd. Er zijn veel verschillende soorten fotoinitiatoren. Op basis van de verschillende triggermechanismen kunnen fotoinitiatoren worden onderverdeeld in kationische fotoinitiatoren en vrije radicale fotoinitiatoren, waarvan vrije radicale fotoinitiatoren de meest uiteenlopende toepassingen hebben.<\/p>\n

4. Verschillende gangbare fotoinitiatoren en hun toepassingsgebieden
\n907 en ITX of DETX fotoinitiatoren gebruikt in combinatie met het gekleurde systeem, de belangrijkste toepassingsgebieden voor woningdecoratie, enz.; 1173 en TPO met beter uithardingseffect, de belangrijkste toepassingsgebieden voor meubels en houtvernis, vloercoatings, woningdecoraties, De belangrijkste toepassingsgebieden zijn: meubels houtvernis, vloercoating, 3C elektronische coating, auto-interieur, woningdecoratie, kunststof producten, enz. 184 kan met TPO en andere laag-gele fotoinitiators in het witte systeem worden gebruikt, hoofdzakelijk gebruikt in: meubilair houten vernis, vloerdeklaag, 3C elektronische deklaag, autointerieur, huisdecoratie, plastic producten, enz.
\n1. 184
\nDe maximale absorptiegolflengte is 333 nm, voornamelijk gebruikt om de snelle uitharding van acrylaat- en methacrylaatsystemen te starten, referentiedosering van 2% tot 4%, uithardingstijd van 190 s en 140 s, respectievelijk.<\/p>\n

Alias: 1-Hydroxycyclohexylfenylketon
\nEngelse naam: 1-Hydroxycyclohexyl fenyl ketone
\nCAS-nr: 947-19-3<\/a>
\nUiterlijk: Wit of gebroken wit kristal
\nOverbrenging: 425nm\u226598.0%, 500nm\u226599.0% (1g\/10mL tolueen)
\nAbsorptiepiek: 246nm, 280nm, 333nm (in methanoloplossing)
\nOplosbaarheid: 20\u2103 (g\/100g oplossing)<\/p>\n

2. 907
\n907 kan zijn in het uithardingsproces van inkt, de absorptie van UV-stralingsenergie en de vorming van vrije radicalen of kationen, die de monomeer- en oligomeerpolymerisatie, crosslinking en entreacties op gang brengen, in een zeer korte tijdspanne om de inkt te laten uitharden tot een driedimensionale maasstructuur van polymeren.<\/p>\n

Alias: 2-methyl-1-(4-methylthiofenyl)-2-morfolinyl-1-propanon
\nCAS-nr: 71868-10-5<\/a>
\nVerschijning: Wit kristallijn poeder
\nOverbrenging: 425nm\u226590.0%, 500nm\u226595.0% (1g\/10mL tolueen)
\nAbsorptiepiek: 230nm, 304nm (in methanoloplossing)
\nOplosbaarheid: 20\u2103 (g\/100g oplossing)<\/p>\n

V, de ontwikkeling trend van fotoinitiatoren fotoinitiatoren naast het voldoen aan milieu-eisen, zoals sommige normen (zoals food-grade coatings) op het residu van fotoinitiatoren hebben strikte grenzen, in termen van prestaties moeten een hoge molaire extinctieco\u00ebffici\u00ebnt, lage toxiciteit, goede oplosbaarheid en andere kenmerken, en spectrale match met de lichtbron hebben.
\nMet de verbetering van de publieke veiligheidsbewustzijn, de veiligheid van voedsel en medicijnen verpakking is meer en meer belangrijk, zoals Europa op voedsel en medicijnen verpakking inkt ontwikkeld streng. Wereldwijd zullen macromoleculaire fotoinitiatoren meer en meer worden gebruikt in verpakkingsinkt vanwege hun voordelen van lage toxiciteit en lage migratie, dus de ontwikkeling van meer soorten macromoleculaire fotoinitiatoren is de ontwikkelingstrend van de producten van de industrie.
\nGeformuleerde producten bestaande uit kationische fotoinitiatoren en ondersteunende harsen en monomeren hebben de voordelen van anti-oxidatie en polymerisatieblokkering, lage krimp van het systeem, dat het vrije radicale uithardingssysteem kan aanvullen. De toekomstige toepassing van kationische uithardingsproducten of gemengd gebruik met vrije radicale uithardingsproducten heeft ontwikkelingsperspectieven, dus de kationische fotoinitiator is ook een van de product- en technologische ontwikkelingsrichtingen.<\/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\/nl\/introduction-to-photoinitiators-and-their-standards\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Introduction to photoinitiators and their standards - 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