{"id":9103,"date":"2025-10-29T07:11:41","date_gmt":"2025-10-29T07:11:41","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9103"},"modified":"2026-04-27T11:18:15","modified_gmt":"2026-04-27T11:18:15","slug":"2025-what-does-a-photoinitiator-do","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/de\/2025-what-does-a-photoinitiator-do\/","title":{"rendered":"2025 Was macht ein Fotoinitiator?"},"content":{"rendered":"<h1><strong><b>Was bewirkt ein Fotoinitiator?<\/b><\/strong><\/h1>\n<p>Hallo zusammen! Ich bin ein Star-Mitarbeiter bei CHROM\u00c9CLAIR, einer Marke von <a href=\"https:\/\/chromeclair.com\/product-category\/solid-color-gel-polish\/\"><u>hemafreier Gel-Politur<\/u><\/a>.<\/p>\n<p>Die \"Magie des Lichts\": Wie Fotoinitiatoren die Aush\u00e4rtungstechnologie revolutionieren Heute werden wir einige im Alltag h\u00e4ufig verwendete Fotoinitiatoren und ihre Funktionen untersuchen und hoffen, dass diese Informationen hilfreich sind.<\/p>\n<h2><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9106\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/1-10-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Grunds\u00e4tze und Bedeutung von Photoinitiatoren<\/b><\/strong><\/h2>\n<p>Photoinitiatoren dienen als Kernkomponente in Photopolymerisationssystemen. In solchen Systemen - einschlie\u00dflich UV-Klebstoffen, UV-Beschichtungen und UV-Farben - absorbieren sie Lichtenergie bei bestimmten Wellenl\u00e4ngen und gehen vom Grundzustand in einen angeregten Zustand \u00fcber. Anschlie\u00dfend erreichen sie durch Kreuzung zwischen den Systemen den angeregten Triplett-Zustand. Durch unimolekulare oder bimolekulare chemische Reaktionen erzeugen sie reaktive Fragmente wie freie Radikale und Kationen, die die Polymerisation der Monomere und die Aush\u00e4rtung der Vernetzungen einleiten. Ihre Initiierungseffizienz bestimmt direkt die Photopolymerisationsrate und beeinflusst die Produktleistung, wodurch sie f\u00fcr die Strahlungsh\u00e4rtung - eine energiesparende, umweltfreundliche \"gr\u00fcne Technologie\" - von entscheidender Bedeutung sind.<\/p>\n<h2><strong><b>Freie Radikalische Photoinitiatoren<\/b><\/strong><\/h2>\n<h3><strong><b>Photoinitiatoren knacken<\/b><\/strong><\/h3>\n<p>Cracking-Photoinitiatoren (wie 1173, 184 usw.) absorbieren ultraviolette Lichtquanten, wodurch die kovalente Bindung zwischen der Carbonylgruppe und dem benachbarten Kohlenstoffatom innerhalb des Molek\u00fcls aufbricht. Dadurch entstehen Prim\u00e4rradikale, die Polymerisations-, Vernetzungs- und Pfropfungsreaktionen einleiten und die Fl\u00fcssigkeit schnell zu einem Film aush\u00e4rten lassen. Am Beispiel von 184 (1-Hydroxycyclohexylphenylketon) l\u00e4sst sich der Mechanismus der Photolyse wie folgt beschreiben: Nach der Absorption von Lichtenergie geht es vom Grundzustand in einen angeregten Zustand \u00fcber und durchl\u00e4uft anschlie\u00dfend eine Norrish-I-Reaktion. Die kovalente Bindung zwischen der Carbonylgruppe und dem benachbarten Kohlenstoffatom in der Molekularstruktur bricht auf, wobei zwei Arten von Radikalen entstehen. Solche Fotoinitiatoren werden h\u00e4ufig in Bereichen eingesetzt, in denen eine schnelle Aush\u00e4rtung erforderlich ist, wie z. B. bei Fotopolymerharzen f\u00fcr den 3D-Druck, die eine Verfestigung des Harzes innerhalb kurzer Zeit erm\u00f6glichen, um Pr\u00e4zision und Effizienz beim Drucken zu gew\u00e4hrleisten. In Holzbeschichtungen bilden sie schnell harte, verschlei\u00dffeste Beschichtungen, was die Produktionseffizienz erh\u00f6ht.<\/p>\n<h3><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9104\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10.webp\" alt=\"\" width=\"3462\" height=\"1844\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-768x409.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-1536x818.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-2048x1091.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-18x10.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-1280x682.webp 1280w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/2-10-600x320.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Wasserstoffspendende Photoinitiatoren<\/b><\/strong><\/h3>\n<p>Hydrogen-donating photoinitiators (e.g., BP, <a href=\"https:\/\/changhongchemical.com\/product\/photoinitiator-bp-cas-119-61-9\/\">Benzophenon<\/a>) undergo photoexcitation and abstract hydrogen atoms from hydrogen donors such as reactive monomers or low-molecular-weight prepolymers, forming reactive radicals that initiate polymerization. The reaction mechanism is as follows: The photoinitiator molecule is photoexcited to an excited state, abstracts a hydrogen atom from the hydrogen donor RH, and generates the photoinitiator radical XH\u30fb and the monomer radical R\u30fb (Figure 2). In practical applications, BP is commonly used in UV ink systems. When combined with amine accelerators, it enhances the initiation effect, improves ink curing speed and adhesion, and is widely used in the printing industry to meet high-speed printing demands.<\/p>\n<h3><strong><b>Kationische Photoinitiatoren<\/b><\/strong><\/h3>\n<p>Zu den kationischen Photoinitiatoren geh\u00f6ren Diazoniumsalze, Diaryliodoniumsalze und Triarylsulfoniumsalze. Nach der Fotoaktivierung gehen diese Molek\u00fcle in einen angeregten Zustand \u00fcber und durchlaufen eine Reihe von Zersetzungsprozessen, bei denen hyperprotonische S\u00e4uren entstehen, die die kationische Polymerisation von Epoxidverbindungen, Vinylethern und \u00e4hnlichen Materialien einleiten. Am Beispiel des h\u00e4ufig verwendeten Diaryliodoniumsalzes I-250 kann die Photolyse gleichzeitig eine ortho- und eine para-Spaltung ausl\u00f6sen, wobei sowohl Hyperprotonens\u00e4uren als auch reaktive freie Radikale entstehen. Dies erm\u00f6glicht die gleichzeitige Initiierung von kationischer und radikalischer Polymerisation. Kationische Photoinitiatoren werden in gro\u00dfem Umfang in elektronischen Verpackungen zur Aush\u00e4rtung von Epoxidharzen eingesetzt. Ihr Aush\u00e4rtungsprozess wird durch Sauerstoffinhibition nicht beeintr\u00e4chtigt, so dass sie eine starke \"Nachh\u00e4rtungs\"-F\u00e4higkeit aufweisen, um die langfristige Stabilit\u00e4t elektronischer Komponenten in rauen Umgebungen zu gew\u00e4hrleisten. Bei der Beschichtung von optischen Fasern bilden sie gleichm\u00e4\u00dfige, stark haftende Schichten, die die Fasern vor Korrosion durch \u00e4u\u00dfere Einfl\u00fcsse sch\u00fctzen.<\/p>\n<h2><strong><b><img decoding=\"async\" class=\"alignnone size-full wp-image-9105\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/10\/3-10-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Photoinitiatoren besonderer Art<\/b><\/strong><\/h2>\n<h3><strong><b>Photoinitiatoren auf Wasserbasis<\/b><\/strong><\/h3>\n<p>Fotoinitiatoren auf Wasserbasis werden synthetisiert, indem funktionelle Ammoniumsalz- oder Sulfonatgruppen in herk\u00f6mmliche Fotoinitiatoren eingef\u00fchrt werden. Sie geh\u00f6ren in erster Linie zur Klasse der Arylketone, wie z. B. Benzophenonderivate und Thioanthrachinon-Derivate. Sie beheben die schlechte L\u00f6slichkeit herk\u00f6mmlicher Fotoinitiatoren in w\u00e4ssrigen Systemen und eignen sich daher f\u00fcr umweltfreundliche Produkte wie UV-Beschichtungen auf Wasserbasis und Druckfarben auf Wasserbasis. Bei Bautenanstrichen erm\u00f6glichen Fotoinitiatoren auf Wasserbasis, dass sich nach der Lichth\u00e4rtung Hochleistungsfilme bilden, die die Umweltanforderungen erf\u00fcllen und gleichzeitig eine hervorragende Wetterbest\u00e4ndigkeit und dekorative Eigenschaften aufweisen.<\/p>\n<h3><strong><b>Makromolekulare Photoinitiatoren<\/b><\/strong><\/h3>\n<p>Makromolekulare Photoinitiatoren werden durch Einbindung herk\u00f6mmlicher Photoinitiatoren in makromolekulare Ketten gewonnen. Sie weisen eine ausgezeichnete Kompatibilit\u00e4t mit Harzen auf, sind nach dem Aush\u00e4rten nicht wandernd und nicht fl\u00fcchtig und reduzieren den Geruch. Bei der Anwendung in Automobil-Innenbeschichtungen verhindern makromolekulare Fotoinitiatoren die mit kleinmolekularen Fotoinitiatoren verbundene Restverfl\u00fcchtigung und Geruchsbildung. Gleichzeitig sorgen sie daf\u00fcr, dass die Beschichtung \u00fcberragende mechanische Eigenschaften und chemische Best\u00e4ndigkeit aufweist, und verbessern so die Qualit\u00e4t der Innenausstattung von Kraftfahrzeugen.<\/p>\n<p>Das war's f\u00fcr heute! Ich hoffe, dieser Artikel hilft Ihnen, die Grundlagen der Fotoinitiatoren besser zu verstehen!<\/p>\n<p>CHROM\u00c9CLAIR bietet Basislacke, Decklacke, Volltonfarben <a href=\"https:\/\/chromeclair.com\/product-category\/solid-color-gel-polish\/\"><u>Gel-Politur ohne HEMA<\/u><\/a>und <a href=\"http:\/\/chromeclair.com\/product\/cat-eye-gel-polish-hema-free-and-tpo-free-ce08\/\"><u>hemafreier Gel-Lack f\u00fcr Katzenaugen<\/u><\/a>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-8984\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2.webp\" alt=\"\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2025\/09\/8-2-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>Auf ihrer Website finden Sie auch Anleitungen f\u00fcr die Nagelkunst, wie zum Beispiel:<\/p>\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/get-a-fairy-skirt-nail-art-at-home-manicure-in-4easy-steps\/\">Holen Sie sich eine Fee Rock Nagelkunst At-Home Manik\u00fcre in 4Easy Steps!<\/a><\/p>\n<p class=\"entry-title\"><a href=\"https:\/\/chromeclair.com\/how-to-do-the-metal-3d-floral-nail-art-at-home\/\">Wie macht man die 3D-Blumen-Nagelkunst aus Metall zu Hause?\u00a0<\/a><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>What does a photoinitiator do? Hello everyone! I&#8217;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish. The \u201cMagic of Light\u201d: How Photoinitiators Are Revolutionizing Curing Technology Today we&#8217;ll explore several&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9103","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What does a photoinitiator do?- Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Hello everyone! I&#039;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.The \u201cMagic of Light\u201d: How Photoinitiators Are Revolutionizing Curing Technology Today we&#039;ll explore several commonly used photoinitiators in everyday life and their functions, hoping this information proves helpful.Principles and Importance of PhotoinitiatorsPhotoinitiators serve as the core component in photopolymerization systems. Within such systems\u2014including UV adhesives, UV coatings, and UV inks\u2014they absorb light energy at specific wavelengths, transitioning from the ground state to an excited state. Subsequently, through intersystem crossing, they reach the excited triplet state. Via unimolecular or bimolecular chemical reactions, they generate reactive fragments such as free radicals and cations, thereby initiating monomer polymerization and crosslinking curing. Their initiation efficiency directly determines the photopolymerization rate and influences product performance, making them crucial in radiation curing\u2014an energy-saving, environmentally friendly \u201cgreen technology.\u201d\" \/>\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\/2025-what-does-a-photoinitiator-do\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What does a photoinitiator do?- Changhong Chemical\" \/>\n<meta property=\"og:description\" content=\"Hello everyone! I&#039;m a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.The \u201cMagic of Light\u201d: How Photoinitiators Are Revolutionizing Curing Technology Today we&#039;ll explore several commonly used photoinitiators in everyday life and their functions, hoping this information proves helpful.Principles and Importance of PhotoinitiatorsPhotoinitiators serve as the core component in photopolymerization systems. Within such systems\u2014including UV adhesives, UV coatings, and UV inks\u2014they absorb light energy at specific wavelengths, transitioning from the ground state to an excited state. Subsequently, through intersystem crossing, they reach the excited triplet state. Via unimolecular or bimolecular chemical reactions, they generate reactive fragments such as free radicals and cations, thereby initiating monomer polymerization and crosslinking curing. 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I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.The \u201cMagic of Light\u201d: How Photoinitiators Are Revolutionizing Curing Technology Today we'll explore several commonly used photoinitiators in everyday life and their functions, hoping this information proves helpful.Principles and Importance of PhotoinitiatorsPhotoinitiators serve as the core component in photopolymerization systems. Within such systems\u2014including UV adhesives, UV coatings, and UV inks\u2014they absorb light energy at specific wavelengths, transitioning from the ground state to an excited state. Subsequently, through intersystem crossing, they reach the excited triplet state. Via unimolecular or bimolecular chemical reactions, they generate reactive fragments such as free radicals and cations, thereby initiating monomer polymerization and crosslinking curing. 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Ich bin ein Star-Mitarbeiter bei CHROM\u00c9CLAIR, einer Marke f\u00fcr hemafreien Gel-Politur.The \"Magic of Light\": Wie Photoinitiatoren die Aush\u00e4rtungstechnologie revolutionieren Heute werden wir einige im Alltag h\u00e4ufig verwendete Photoinitiatoren und ihre Funktionen untersuchen und hoffen, dass sich diese Informationen als hilfreich erweisen.Prinzipien und Bedeutung von PhotoinitiatorenPhotoinitiatoren dienen als Kernkomponente in Photopolymerisationssystemen. In solchen Systemen - einschlie\u00dflich UV-Klebstoffen, UV-Beschichtungen und UV-Farben - absorbieren sie Lichtenergie bei bestimmten Wellenl\u00e4ngen und gehen vom Grundzustand in einen angeregten Zustand \u00fcber. Anschlie\u00dfend erreichen sie durch Kreuzung zwischen den Systemen den angeregten Triplett-Zustand. Durch unimolekulare oder bimolekulare chemische Reaktionen erzeugen sie reaktive Fragmente wie freie Radikale und Kationen, die die Polymerisation der Monomere und die Aush\u00e4rtung der Vernetzungen einleiten. Ihre Initiierungseffizienz bestimmt direkt die Photopolymerisationsrate und beeinflusst die Produktleistung, wodurch sie f\u00fcr die Strahlungsh\u00e4rtung - eine energiesparende, umweltfreundliche \"gr\u00fcne Technologie\" - von entscheidender Bedeutung sind.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/changhongchemical.com\/de\/2025-what-does-a-photoinitiator-do\/","og_locale":"de_DE","og_type":"article","og_title":"What does a photoinitiator do?- Changhong Chemical","og_description":"Hello everyone! I'm a star employee at CHROM\u00c9CLAIR, a brand of hema free gel polish.The \u201cMagic of Light\u201d: How Photoinitiators Are Revolutionizing Curing Technology Today we'll explore several commonly used photoinitiators in everyday life and their functions, hoping this information proves helpful.Principles and Importance of PhotoinitiatorsPhotoinitiators serve as the core component in photopolymerization systems. Within such systems\u2014including UV adhesives, UV coatings, and UV inks\u2014they absorb light energy at specific wavelengths, transitioning from the ground state to an excited state. Subsequently, through intersystem crossing, they reach the excited triplet state. Via unimolecular or bimolecular chemical reactions, they generate reactive fragments such as free radicals and cations, thereby initiating monomer polymerization and crosslinking curing. 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Ich bin ein Star-Mitarbeiter bei CHROM\u00c9CLAIR, einer Marke f\u00fcr hemafreien Gel-Politur.The \"Magic of Light\": Wie Photoinitiatoren die Aush\u00e4rtungstechnologie revolutionieren Heute werden wir einige im Alltag h\u00e4ufig verwendete Photoinitiatoren und ihre Funktionen untersuchen und hoffen, dass sich diese Informationen als hilfreich erweisen.Prinzipien und Bedeutung von PhotoinitiatorenPhotoinitiatoren dienen als Kernkomponente in Photopolymerisationssystemen. In solchen Systemen - einschlie\u00dflich UV-Klebstoffen, UV-Beschichtungen und UV-Farben - absorbieren sie Lichtenergie bei bestimmten Wellenl\u00e4ngen und gehen vom Grundzustand in einen angeregten Zustand \u00fcber. Anschlie\u00dfend erreichen sie durch Kreuzung zwischen den Systemen den angeregten Triplett-Zustand. Durch unimolekulare oder bimolekulare chemische Reaktionen erzeugen sie reaktive Fragmente wie freie Radikale und Kationen, die die Polymerisation der Monomere und die Aush\u00e4rtung der Vernetzungen einleiten. 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