{"id":5649,"date":"2022-10-04T12:14:57","date_gmt":"2022-10-04T12:14:57","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5649"},"modified":"2022-10-04T12:14:57","modified_gmt":"2022-10-04T12:14:57","slug":"what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/","title":{"rendered":"Qual \u00e8 la differenza tra le vernici fotopolimerizzanti e quelle a base di solventi?"},"content":{"rendered":"

Qual \u00e8 la differenza tra le vernici fotopolimerizzanti e quelle a base di solventi?<\/strong><\/h1>\n

Il rivestimento fotoindurente \u00e8 un materiale efficiente, ecologico, a risparmio energetico e di alta qualit\u00e0, e la relativa tecnologia si \u00e8 sviluppata rapidamente negli ultimi anni grazie alle sue buone caratteristiche.<\/p>\n

I componenti principali dei rivestimenti fotopolimerizzanti comprendono generalmente: fotoiniziatori, diluenti attivi, oligomeri e vari additivi. I rivestimenti fotopolimerizzanti subiscono reazioni fotochimiche sotto l'irradiazione della luce, che \u00e8 diversa dal ruolo delle sostanze termochimiche reattive. Per questo motivo, anche le propriet\u00e0 dei rivestimenti fotopolimerizzabili sono diverse.<\/p>\n

Le caratteristiche della tecnologia di fotopolimerizzazione.<\/p>\n

1. La fotopolimerizzazione deve essere effettuata solo a temperatura ambiente, in modo da soddisfare la costruzione di prodotti non adatti al riscaldamento e all'essiccazione.<\/p>\n

I tradizionali rivestimenti a base di solventi richiedono ore o addirittura giorni per asciugarsi. I prodotti fotopolimerizzati sono pi\u00f9 produttivi, consentono di risparmiare spazio per impilare i semilavorati e soddisfano meglio i requisiti della produzione automatizzata su larga scala. Allo stesso tempo, la qualit\u00e0 dei prodotti fotopolimerizzati \u00e8 pi\u00f9 facile da garantire.<\/p>\n

2. Oltre all'aumento della produttivit\u00e0 e al risparmio energetico, la tecnologia di fotopolimerizzazione consente anche di ottenere livelli pi\u00f9 elevati di qualit\u00e0 del rivestimento, come le propriet\u00e0 meccaniche e la brillantezza.<\/p>\n

Rispetto ai rivestimenti a base di solventi, l'energia utilizzata per la polimerizzazione a luce UV equivale solo a 1\/10~1\/5 della prima; inoltre, i rivestimenti fotopolimerizzabili a temperatura ambiente e le caratteristiche di polimerizzazione rapida a freddo sono ineguagliate da altri rivestimenti. I rivestimenti a forno e quelli in polvere devono essere riscaldati dopo la verniciatura per favorire l'evaporazione del solvente e la reazione di reticolazione chimica, mentre i rivestimenti fotopolimerizzabili consentono un notevole risparmio energetico.<\/p>\n

3. Grazie al sistema \"no\" solvente, gli utenti non hanno bisogno di installare costosi impianti di depurazione.<\/p>\n

I rivestimenti convenzionali a base di solventi contengono solitamente da 30% a 70% di solventi inerti, che evaporano quasi tutti nell'atmosfera quando il film si asciuga, causando notevoli rischi ambientali.<\/p>\n

Inoltre, la fotopolimerizzazione richiede solo l'energia delle radiazioni utilizzate per eccitare il fotoiniziatore, a differenza della tradizionale polimerizzazione termica che richiede il riscaldamento del substrato, del materiale, dello spazio circostante e l'evaporazione per rimuovere il calore dell'acqua o dei solventi organici utilizzati per la diluizione, con un notevole risparmio energetico.<\/p>\n

Applicazioni della tecnologia di fotopolimerizzazione.<\/p>\n

Chimica, meccanica, elettronica, industria leggera, comunicazioni, automotive e altri settori. I rivestimenti fotopolimerizzanti comprendono bamb\u00f9, pavimenti in legno, pannelli decorativi, mobili e altri rivestimenti UV per il legno; parti di automobili, strumenti, CD, pannelli decorativi, carte di credito e altri rivestimenti UV per la plastica; ruggine dell'acciaio, acciaio rivestito di colore, lattine di ferro stampate, lattine e altri rivestimenti UV per il metallo; carta decorativa, rivestimento della superficie scritta.<\/p>\n

I rivestimenti fotopolimerizzanti riducono l'inquinamento dell'aria, il pericolo per l'uomo e il rischio di incendio. La produzione di rivestimenti fotopolimerizzabili \u00e8 cresciuta rapidamente negli ultimi anni; le informazioni mostrano che nel 2011 la produzione cinese di rivestimenti fotopolimerizzabili \u00e8 stata di 75.177t, con un aumento di 39% rispetto al 2010 e un incremento di 131% rispetto al 2007. In quanto \"tecnologia verde\" rispettosa dell'ambiente, i rivestimenti fotopolimerizzabili sono diventati una tecnologia prioritaria negli Stati Uniti, in Europa, in Giappone e cos\u00ec via, ma anche in linea con le crescenti esigenze del pubblico cinese.<\/p>","protected":false},"excerpt":{"rendered":"

Qual \u00e8 la differenza tra i rivestimenti fotopolimerizzabili e quelli a base di solventi? Il rivestimento fotoindurente \u00e8 un materiale efficiente, ecologico, a risparmio energetico e di alta qualit\u00e0, e la relativa tecnologia si \u00e8 sviluppata rapidamente negli ultimi anni grazie alle sue buone caratteristiche. I componenti principali dei rivestimenti fotopolimerizzanti comprendono generalmente: fotoiniziatori, diluenti attivi, oligomeri e vari additivi. I rivestimenti fotopolimerizzanti sono sottoposti [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5649","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"\nWhat is the difference between light-curing coatings and solvent-based coatings? - Longchang Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/it\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between light-curing coatings and solvent-based coatings? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"What is the difference between light-curing coatings and solvent-based coatings? 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