{"id":5437,"date":"2022-08-06T13:06:15","date_gmt":"2022-08-06T13:06:15","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5437"},"modified":"2026-04-28T10:42:05","modified_gmt":"2026-04-28T10:42:05","slug":"surfactants-applications-in-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/surfactants-applications-in-coatings\/","title":{"rendered":"Le r\u00f4le des agents de surface et leurs diverses applications dans les rev\u00eatements"},"content":{"rendered":"<h1><strong>Le r\u00f4le des agents de surface et leurs diverses applications dans les rev\u00eatements<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> In practical UV formulation work, resin and monomer selection starts with the end-use property target, then tunes viscosity and cure response around it. Buyers usually shortlist a few matched packages, not a single magic raw material.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>L'application d'agents de surface dans les rev\u00eatements est un additif, qui est un composant indispensable dans la production de rev\u00eatements. Il peut am\u00e9liorer le processus de production du rev\u00eatement, les conditions de construction et la qualit\u00e9 du produit, ce qui permet de r\u00e9duire les co\u00fbts et d'am\u00e9liorer l'efficacit\u00e9 \u00e9conomique. Le rev\u00eatement est un syst\u00e8me de dispersion collo\u00efdale compos\u00e9 d'une phase continue et d'une phase dispers\u00e9e. La phase continue est constitu\u00e9e d'un solvant, d'un polym\u00e8re ou d'une solution de polym\u00e8re, le polym\u00e8re \u00e9tant soit un type de solution, soit un type de particule, tel qu'une \u00e9mulsion, soit un solide ; la phase dispers\u00e9e est constitu\u00e9e d'une couleur, d'une charge. D'apr\u00e8s la classification des collo\u00efdes, les rev\u00eatements sont des collo\u00efdes dispers\u00e9s avec une cin\u00e9tique collo\u00efdale, des propri\u00e9t\u00e9s \u00e9lectriques, etc. Ils sont donc \u00e9troitement li\u00e9s \u00e0 la chimie des collo\u00efdes de surface. Le principe d'\u00e9mulsification, le principe de dispersion, le principe de moussage et de d\u00e9moussage et le principe de rh\u00e9ologie de la chimie des surfaces jouent \u00e9galement un r\u00f4le d'orientation tr\u00e8s important pour les rev\u00eatements et fournissent la base th\u00e9orique de l'application des agents de surface dans l'industrie des rev\u00eatements. Les fonctions d'application des agents de surface dans les rev\u00eatements sont respectivement les suivantes.<\/p>\n<p>I. Agent mouillant et dispersant.<\/p>\n<p>Le processus de broyage et de dispersion des pigments est le principal processus de fabrication des rev\u00eatements, et environ 80% d'\u00e9nergie \u00e9lectrique et d'heures de travail sont consomm\u00e9es dans ce processus. Le processus de dispersion des pigments dans le mat\u00e9riau de base peut \u00eatre divis\u00e9 en trois \u00e9tapes, \u00e0 savoir le mouillage, la dispersion et la stabilisation. Ces trois \u00e9tapes ne sont pas s\u00e9par\u00e9es, mais se chevauchent. L'agent mouillant peut favoriser le mouillage des agr\u00e9gats de pigments par le mat\u00e9riau de base, et le dispersant peut am\u00e9liorer la stabilit\u00e9 de la dispersion des pigments. La fonction de l'agent mouillant et de l'agent dispersant est donc irrempla\u00e7able. Le r\u00f4le de l'agent de mouillage et de dispersion des pigments est illustr\u00e9 ci-dessous.<\/p>\n<p>1\u3001Am\u00e9liorer l'efficacit\u00e9 de la production, r\u00e9duire les co\u00fbts de fabrication, am\u00e9liorer la stabilit\u00e9 de stockage des rev\u00eatements et r\u00e9duire les d\u00e9chets.<\/p>\n<p>2\u3001Am\u00e9liorer l'\u00e9tat du film de rev\u00eatement.<\/p>\n<p>3, la meilleure dispersion des pigments peut am\u00e9liorer la capacit\u00e9 d'absorption et de r\u00e9flexion de la lumi\u00e8re ultraviolette, augmenter la r\u00e9sistance aux intemp\u00e9ries et la r\u00e9sistance chimique des pigments.<\/p>\n<p>2\u3001Antimousse.<\/p>\n<p>L'antimousse inhibe \u00e0 la fois le r\u00f4le de g\u00e9n\u00e9ration de mousse et le r\u00f4le d'\u00e9limination de la mousse. L'antimousse appropri\u00e9 a g\u00e9n\u00e9ralement une faible tension superficielle, tandis que l'antimousse doit \u00e9galement avoir une compatibilit\u00e9 limit\u00e9e, de sorte qu'il ne se dissout pas dans le milieu moussant et qu'il peut \u00eatre bien dispers\u00e9. Dans un syst\u00e8me aqueux, l'antimousse ne peut pas affecter la stabilit\u00e9 de l'\u00e9mulsion. Dans l'industrie du rev\u00eatement, la quantit\u00e9 d'antimousse n'est pas importante et la sp\u00e9cialit\u00e9 est forte.<\/p>\n<p>Les antimousses couramment utilis\u00e9s dans les rev\u00eatements \u00e0 base d'eau sont l'huile min\u00e9rale, l'ester d'alcool inf\u00e9rieur d'acide gras, l'alcool senior, l'acide gras senior, le savon m\u00e9tallique d'acide gras senior, le glyc\u00e9rol d'acide gras senior, l'amide d'acide gras senior, les d\u00e9riv\u00e9s d'acide gras senior et de poly\u00e9thyl\u00e8ne polyamine, les adduits de propyl\u00e8ne glycol et d'oxyde d'\u00e9thyl\u00e8ne, l'ester de phosphate organique, la r\u00e9sine de silicone, etc. Les agents de surface au propyl\u00e8ne glycol de Shanghai Cang Hong sont une cat\u00e9gorie d'agents de surface multifonctionnels utilis\u00e9s dans les rev\u00eatements \u00e0 base d'eau, qui ont des fonctions de d\u00e9moussage, de mouillage et de nivellement.<\/p>\n<p>Les rev\u00eatements \u00e0 base de solvant couramment utilis\u00e9s comme antimousse sont l'alcool de qualit\u00e9 inf\u00e9rieure, le savon m\u00e9tallique gras sup\u00e9rieur, le phosphate d'alkyle de qualit\u00e9 inf\u00e9rieure, la r\u00e9sine organosilici\u00e9e, la r\u00e9sine de silicone modifi\u00e9e, etc.<\/p>\n<p>Troisi\u00e8mement, l'agent de nivellement.<\/p>\n<p>Apr\u00e8s la construction du rev\u00eatement, il y a un processus d'\u00e9coulement et de s\u00e9chage de la formation du film, ce processus est appel\u00e9 processus de nivellement. Une bonne peinture de nivellement se nivellera rapidement pour former un rev\u00eatement lisse et plat apr\u00e8s la construction ; une peinture de mauvais nivellement laissera des marques de pinceau \u00e9videntes, une peau d'orange et d'autres d\u00e9fauts apr\u00e8s la formation du film, ce qui affectera l'apparence. Les facteurs \u00e0 prendre en compte pour am\u00e9liorer le nivellement de la peinture sont les suivants<\/p>\n<p>1\u3001L'utilisation d'agents tensioactifs capables de r\u00e9duire de mani\u00e8re appropri\u00e9e la tension superficielle du rev\u00eatement afin d'am\u00e9liorer le nivellement du rev\u00eatement.<\/p>\n<p>2. Choisir un solvant dont la vitesse d'\u00e9vaporation est appropri\u00e9e et qui peut r\u00e9duire la viscosit\u00e9 de la peinture, am\u00e9liorer l'\u00e9coulement de la peinture, prolonger le temps de nivellement et r\u00e9aliser le nivellement final. Les agents de nivellement courants sont les solvants \u00e0 point d'\u00e9bullition \u00e9lev\u00e9, les agents de nivellement \u00e0 base de silicone, les agents de nivellement \u00e0 base de polyacrylate, la classe de cellulose de butyle de vinaigre (CAB ), etc.<\/p>\n<p>Quatri\u00e8mement, l'\u00e9mulsifiant.<\/p>\n<p>La peinture \u00e9mulsion avec de l'eau comme milieu de dispersion des rev\u00eatements \u00e9mulsionn\u00e9s est bas\u00e9e sur une \u00e9mulsion polym\u00e9rique, une face, une charge, des additifs dispers\u00e9s dans la composition du syst\u00e8me de dispersion \u00e0 base d'eau. Les rev\u00eatements \u00e0 \u00e9mulsion dilu\u00e9s dans l'eau sont faciles \u00e0 fabriquer, s\u00e8chent rapidement, sont ininflammables, peu toxiques, \u00e9conomisent de l'\u00e9nergie, ont une excellente performance de film, etc. Ils sont largement utilis\u00e9s dans une vari\u00e9t\u00e9 d'applications telles que les rev\u00eatements int\u00e9rieurs et ext\u00e9rieurs, les peintures industrielles, le traitement des fibres, le papier, etc.<\/p>\n<p>V. Agent antistatique.<\/p>\n<p>Le rev\u00eatement antistatique est un rev\u00eatement qui a la capacit\u00e9 d'exclure la charge statique accumul\u00e9e. L'ajout d'un agent antistatique au rev\u00eatement permet de pr\u00e9parer un rev\u00eatement antistatique. L'agent antistatique est un surfactant qui peut faire fuir la charge statique ou r\u00e9duire le facteur de friction par diff\u00e9rents canaux afin d'inhiber la g\u00e9n\u00e9ration de charge statique. Il doit g\u00e9n\u00e9ralement pr\u00e9senter les caract\u00e9ristiques suivantes : bon effet de pr\u00e9vention de l'\u00e9lectricit\u00e9 statique ; effet durable de pr\u00e9vention de l'\u00e9lectricit\u00e9 statique ; bonne miscibilit\u00e9 avec les substances filmog\u00e8nes ; et n'affecte pas les autres propri\u00e9t\u00e9s du rev\u00eatement. Le rev\u00eatement d\u00e9coratif antistatique n'absorbe pas la poussi\u00e8re, r\u00e9siste \u00e0 la pollution ; il peut garantir que les instruments et les compteurs ne subissent pas d'interf\u00e9rences \u00e9lectrostatiques, afin de garantir leur pr\u00e9cision et leur sensibilit\u00e9 ; il peut \u00e9liminer l'\u00e9lectricit\u00e9 statique sur les installations de haute altitude, afin de pr\u00e9venir les dommages caus\u00e9s par la foudre, de favoriser les fuites d'\u00e9lectricit\u00e9 statique et d'\u00e9viter les incendies.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How buyers usually evaluate UV monomers and resin systems<\/h2>\n<p>Most successful UV formulations are built by choosing the backbone first and then tuning the reactive monomer package around the substrate, cure method, and end-use stress. That usually produces a more stable result than choosing materials by viscosity or price alone.<\/p>\n<ul>\n<li><strong>Start from the final property target:<\/strong> hardness, flexibility, adhesion, and shrinkage rarely point to exactly the same raw-material package.<\/li>\n<li><strong>Screen the reactive package as a whole:<\/strong> oligomer, monomer, and photoinitiator choices interact strongly in UV systems.<\/li>\n<li><strong>Use viscosity as a tool, not the only decision rule:<\/strong> the easiest-processing material is not always the one that performs best after cure.<\/li>\n<li><strong>Check the real substrate:<\/strong> plastic, metal, label film, gel systems, and coatings can reward very different polarity and cure-density balances.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-lap-cas-85073-19-4\/\">CHLUMINIT LAP<\/a>:<\/strong> A strong option when blue-light response or advanced curing windows are under review.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> A stronger process-defoaming option when persistent foam survives harsher conditions.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Can one UV monomer or resin solve every formulation problem?<\/strong><br \/>Usually no. Commercially strong formulas depend on how several components work together to balance cure, adhesion, flow, and durability.<\/p>\n<p><strong>Why should monomers be screened together with oligomers?<\/strong><br \/>Because monomers can change viscosity, cure rate, shrinkage, and substrate behavior enough to alter the final ranking of the same backbone resin.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>The application of surfactants in coatings is an additive, which is an indispensable component in the production of coatings. It can improve the coating production process, construction conditions and product<\/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-5437","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>The role of surfactants and their various applications in coatings - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"The application of surfactants in coatings is an additive, which is an indispensable component in the production of coatings. 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