{"id":6193,"date":"2023-07-26T02:28:28","date_gmt":"2023-07-26T02:28:28","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6193"},"modified":"2026-04-28T10:42:19","modified_gmt":"2026-04-28T10:42:19","slug":"how-do-leveling-agents-work","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/how-do-leveling-agents-work\/","title":{"rendered":"Come funzionano gli agenti livellanti?"},"content":{"rendered":"<h1><strong>Come funzionano gli agenti livellanti?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Risposta rapida:<\/strong> La scelta di un additivo efficace parte dall&#039;individuazione precisa del difetto: schiuma, scarsa bagnabilit\u00e0, crateri, opacit\u00e0 o instabilit\u00e0. Il prodotto migliore \u00e8 solitamente quello che risolve il problema con la maggiore compatibilit\u00e0.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>1. Panoramica del livellamento<\/p>\n<p>After the construction of paint, there is a flow and drying film-forming process, and then gradually form a flat, smooth, uniform coating film. Whether the coating film can achieve the characteristics of flat and smooth is called leveling. In the actual construction process of the coating, the film defects that often appear are orange peel, fish-eye, shrinkage, pinhole, shrinkage, Benedict swirl, air sensitivity and due to poor leveling, brush marks when brushing, roller coating roller marks are known as poor leveling, the generation of these phenomena reduces the decorative and protective function of the coating. There are many factors affecting the leveling of coatings, such as solvent volatility gradient and solubility properties, surface tension of coatings, wet film thickness and surface tension gradient, rheology of coatings, construction process and environment, etc., of which the most important factors are the surface tension of coatings, surface tension gradient generated by the wet film in the film-forming process and the surface tension homogenization of the surface layer of the wet film. To improve the leveling of coatings, it is necessary to consider adjusting the formulation and adding suitable additives. In practice, <a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumile3345-silicone-leveling-agents-wetting-leveling-agents\/\">CHLUMILE 3345 Leveling Agent<\/a> e <a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumile3033-organic-silicone-leveling-agent-automotive-paint-leveling-agent\/\">CHLUMILE 3033 Leveling Agent<\/a> are often compared so that the coatings have suitable surface tension and the ability to reduce the surface tension gradient.<br \/>\n2. Ruolo del livellante<br \/>\nDopo aver bagnato il substrato, gli additivi che controllano il flusso del rivestimento fino al livellamento finale sono chiamati agenti livellanti, che possono risolvere i seguenti problemi<br \/>\n3. I principali fattori che influenzano il livellamento<br \/>\n3.1. Gradiente di tensione superficiale - interfaccia liquido-aria<br \/>\nI gradienti di tensione superficiale negli strati interni ed esterni portano a vortici di Benadryl.<br \/>\nL'eliminazione del gradiente di tensione superficiale \u00e8 un elemento essenziale per ottenere una superficie piana.<br \/>\n3.2. Tensione superficiale -- interfaccia liquido-solido<br \/>\nTensione superficiale pi\u00f9 bassa rispetto al substrato, in modo che il rivestimento abbia una migliore bagnabilit\u00e0 del substrato<br \/>\n\u25cf Minore tensione superficiale del rivestimento, che porta a un migliore livellamento del liquido a onde lunghe.<br \/>\n4. Fattori che influenzano la velocit\u00e0 di livellamento<br \/>\nPi\u00f9 alta \u00e8 la viscosit\u00e0, pi\u00f9 lento \u00e8 il livellamento.<br \/>\nPi\u00f9 spessa \u00e8 la pellicola, pi\u00f9 veloce \u00e8 il livellamento.<br \/>\nPi\u00f9 alta \u00e8 la tensione superficiale, pi\u00f9 veloce \u00e8 il livellamento.<br \/>\n5. Meccanismi e propriet\u00e0 dei diversi agenti livellanti<br \/>\n5. 1) Eliminare il gradiente di tensione superficiale<br \/>\n5. 2 Ridurre la tensione superficiale del sistema.<br \/>\nOrganosiliconi.<br \/>\n-Riducono significativamente la tensione superficiale<br \/>\n\u25cf Organosiliconi: - Riducono significativamente la tensione superficiale - Buone propriet\u00e0 di migrazione eliminano il gradiente di tensione superficiale<br \/>\nNon siliconico e non fluorurato: - Nessuna riduzione significativa della tensione superficiale.<br \/>\n-Nessuna riduzione significativa della tensione superficiale<br \/>\n- Nessuna migrazione superficiale<br \/>\n- Orientamento all'interno del rivestimento, regolazione dell'omogeneit\u00e0 della tensione superficiale locale<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>Come gli acquirenti valutano solitamente gli additivi per rivestimenti e inchiostri<\/h2>\n<p>La selezione degli additivi \u00e8 generalmente pi\u00f9 efficace quando il team definisce prima il difetto e poi valuta la compatibilit\u00e0, l&#039;intervallo di dosaggio e la fase del processo. Questo approccio \u00e8 spesso molto pi\u00f9 affidabile rispetto alla scelta basata unicamente sulla famiglia chimica o su un singolo risultato di laboratorio eclatante.<\/p>\n<ul>\n<li><strong>Partite dal difetto, non dal nome dell&#039;additivo:<\/strong> La perdita di bagnatura, la formazione di crateri, la microschiuma e l&#039;instabilit\u00e0 spesso richiedono soluzioni diverse, anche all&#039;interno della stessa formula.<\/li>\n<li><strong>Verificare la compatibilit\u00e0 al dosaggio previsto:<\/strong> Anche l&#039;additivo pi\u00f9 potente pu\u00f2 rivelarsi una scelta commerciale sbagliata se restringe eccessivamente la finestra di processo.<\/li>\n<li><strong>Esaminare la fase di utilizzo:<\/strong> Alcuni prodotti sono pi\u00f9 utili durante la macinatura, mentre altri sono pi\u00f9 importanti durante la fase di diluizione, riempimento o applicazione finale.<\/li>\n<li><strong>Bilanciare la qualit\u00e0 della polimerizzazione o della pellicola con il controllo dei difetti:<\/strong> L&#039;additivo giusto risolve il problema senza compromettere l&#039;adesione, la lucentezza o l&#039;aspetto.<\/li>\n<\/ul>\n<h3>Riferimenti prodotto consigliati<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> Un riferimento antischiuma bilanciato per rivestimenti a base acquosa e molte applicazioni generali di controllo della schiuma.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Utile quando la compatibilit\u00e0 tra inchiostro da stampa e inchiostro UV \u00e8 importante nel sistema antischiuma.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> Un'opzione antischiuma pi\u00f9 forte per il processo quando la schiuma persistente sopravvive a condizioni pi\u00f9 severe.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> Un agente bagnante di riferimento altamente efficace per inchiostri, rivestimenti e per la bagnatura di substrati difficili.<\/li>\n<\/ul>\n<h3>FAQ per acquirenti e formulatori<\/h3>\n<p><strong>Perch\u00e9 un additivo che sembra efficace in un becher a volte non funziona durante la produzione?<\/strong><br \/>Poich\u00e9 la sollecitazione di taglio, la temperatura, il substrato e la formula completa possono tutti influenzare il comportamento dell&#039;additivo in condizioni di processo reali.<\/p>\n<p><strong>Bisogna sempre preferire l&#039;additivo pi\u00f9 aggressivo?<\/strong><br \/>Di solito no. L&#039;additivo migliore \u00e8 quello che risolve il difetto reale preservando al contempo la pi\u00f9 ampia finestra di funzionamento sicura.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>1. Overview of leveling After the construction of paint, there is a flow and drying film-forming process, and then gradually form a flat, smooth, uniform coating film. Whether the coating<\/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-6193","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How do leveling agents work? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"1. 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