{"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\/fr\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/","title":{"rendered":"Quelle est la diff\u00e9rence entre les vernis photopolym\u00e9risables et les vernis \u00e0 base de solvant ?"},"content":{"rendered":"

Quelle est la diff\u00e9rence entre les vernis photopolym\u00e9risables et les vernis \u00e0 base de solvant ?<\/strong><\/h1>\n

Le rev\u00eatement photopolym\u00e9risable est un mat\u00e9riau efficace, respectueux de l'environnement, \u00e9conome en \u00e9nergie et de haute qualit\u00e9, et la technologie correspondante s'est rapidement d\u00e9velopp\u00e9e ces derni\u00e8res ann\u00e9es en raison de ses bonnes caract\u00e9ristiques.<\/p>\n

Les principaux composants des rev\u00eatements photopolym\u00e9risables sont g\u00e9n\u00e9ralement les suivants : photo-initiateurs, diluants actifs, oligom\u00e8res et divers additifs. Les vernis photopolym\u00e9risables subissent des r\u00e9actions photochimiques sous l'effet de la lumi\u00e8re, ce qui diff\u00e8re du r\u00f4le des substances thermochimiquement r\u00e9actives. C'est pour cette raison que les propri\u00e9t\u00e9s des vernis photopolym\u00e9risables sont \u00e9galement diff\u00e9rentes.<\/p>\n

Les caract\u00e9ristiques de la technologie de photopolym\u00e9risation.<\/p>\n

1. La photopolym\u00e9risation ne doit \u00eatre effectu\u00e9e qu'\u00e0 temp\u00e9rature ambiante, ce qui permet de r\u00e9pondre \u00e0 la construction de produits qui ne conviennent pas \u00e0 la m\u00e9thode de chauffage et de s\u00e9chage.<\/p>\n

Les rev\u00eatements conventionnels \u00e0 base de solvants mettent des heures, voire des jours, \u00e0 s\u00e9cher. Les produits photopolym\u00e9ris\u00e9s sont plus productifs, ce qui permet d'\u00e9conomiser de l'espace pour l'empilage des produits semi-finis et de mieux r\u00e9pondre aux exigences de la production automatis\u00e9e \u00e0 grande \u00e9chelle. Parall\u00e8lement, la qualit\u00e9 des produits photopolym\u00e9ris\u00e9s est \u00e9galement plus facile \u00e0 garantir.<\/p>\n

2. Outre l'augmentation de la productivit\u00e9 et les \u00e9conomies d'\u00e9nergie, la technologie de photopolym\u00e9risation permet \u00e9galement d'obtenir des niveaux de qualit\u00e9 de rev\u00eatement plus \u00e9lev\u00e9s, tels que les propri\u00e9t\u00e9s m\u00e9caniques et la brillance.<\/p>\n

Par rapport aux vernis \u00e0 base de solvant, l'\u00e9nergie utilis\u00e9e pour le durcissement \u00e0 la lumi\u00e8re UV n'\u00e9quivaut qu'\u00e0 1\/10~1\/5 du premier, les vernis durcissant \u00e0 la lumi\u00e8re \u00e0 temp\u00e9rature ambiante et les caract\u00e9ristiques de durcissement rapide \u00e0 froid sont \u00e9galement in\u00e9gal\u00e9es par d'autres vernis. Les vernis de type cuisson et les vernis en poudre doivent \u00eatre chauff\u00e9s apr\u00e8s la peinture pour favoriser l'\u00e9vaporation du solvant et la r\u00e9action de r\u00e9ticulation chimique, alors que les vernis photopolym\u00e9risables permettent d'\u00e9conomiser beaucoup d'\u00e9nergie.<\/p>\n

3. Gr\u00e2ce au syst\u00e8me \"sans\" solvant, les utilisateurs n'ont pas besoin d'installer des installations d'assainissement co\u00fbteuses.<\/p>\n

Les rev\u00eatements conventionnels \u00e0 base de solvants contiennent g\u00e9n\u00e9ralement 30% \u00e0 70% de solvants inertes, qui s'\u00e9vaporent presque tous dans l'atmosph\u00e8re lorsque le film s\u00e8che, ce qui entra\u00eene des risques consid\u00e9rables pour l'environnement.<\/p>\n

En outre, la photopolym\u00e9risation ne n\u00e9cessite que l'\u00e9nergie de rayonnement utilis\u00e9e pour exciter le photo-initiateur, contrairement \u00e0 la photopolym\u00e9risation thermique traditionnelle qui n\u00e9cessite de chauffer le substrat, le mat\u00e9riau, l'espace environnant et l'\u00e9vaporation pour \u00e9liminer la chaleur de l'eau ou des solvants organiques utilis\u00e9s pour la dilution, ce qui permet d'\u00e9conomiser beaucoup d'\u00e9nergie.<\/p>\n

Applications de la technologie de photopolym\u00e9risation.<\/p>\n

Chimie, m\u00e9canique, \u00e9lectronique, industrie l\u00e9g\u00e8re, communications, automobile et autres domaines. Les rev\u00eatements photopolym\u00e9risables comprennent le bambou, les parquets, les panneaux d\u00e9coratifs, les meubles et autres rev\u00eatements UV pour le bois ; les pi\u00e8ces automobiles, les instruments, les CD, les panneaux d\u00e9coratifs, les cartes de cr\u00e9dit et autres rev\u00eatements UV pour le plastique ; la rouille de l'acier, l'acier color\u00e9, les bo\u00eetes de conserve en fer imprim\u00e9es, les bo\u00eetes de conserve et autres rev\u00eatements UV pour le m\u00e9tal ; le papier d\u00e9coratif, les rev\u00eatements de surface \u00e9crits.<\/p>\n

Les rev\u00eatements photopolym\u00e9risables r\u00e9duisent la pollution de l'air, le danger pour l'homme et le risque d'incendie. La production de rev\u00eatements photopolym\u00e9risables a augment\u00e9 rapidement ces derni\u00e8res ann\u00e9es. Les informations montrent qu'en 2011, la production chinoise de rev\u00eatements photopolym\u00e9risables s'\u00e9levait \u00e0 75 177 tonnes, soit une augmentation de 391 tonnes par rapport \u00e0 2010 et une augmentation de 1311 tonnes par rapport \u00e0 2007. En tant que \"technologie verte\" respectueuse de l'environnement, les rev\u00eatements photopolym\u00e9risables constituent une technologie prioritaire pour les \u00c9tats-Unis, l'Europe, le Japon et d'autres pays, mais aussi pour r\u00e9pondre aux besoins croissants du public en Chine.<\/p>","protected":false},"excerpt":{"rendered":"

Quelle est la diff\u00e9rence entre les rev\u00eatements photopolym\u00e9risables et les rev\u00eatements \u00e0 base de solvant ? Le rev\u00eatement photopolym\u00e9risable est un mat\u00e9riau efficace, respectueux de l'environnement, \u00e9conome en \u00e9nergie et de haute qualit\u00e9, et la technologie correspondante a \u00e9t\u00e9 rapidement d\u00e9velopp\u00e9e ces derni\u00e8res ann\u00e9es en raison de ses bonnes caract\u00e9ristiques. Les principaux composants des rev\u00eatements photopolym\u00e9risables sont g\u00e9n\u00e9ralement les suivants : photo-initiateurs, diluants actifs, oligom\u00e8res et divers additifs. Les rev\u00eatements photopolym\u00e9risables subissent [...]<\/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\/fr\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\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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