{"id":162634,"date":"2025-02-18T12:36:42","date_gmt":"2025-02-18T10:36:42","guid":{"rendered":"https:\/\/concentrol.com\/?p=162634"},"modified":"2025-02-18T12:36:42","modified_gmt":"2025-02-18T10:36:42","slug":"comportament-hidrofobic-emulsions-cera-concentrol","status":"publish","type":"post","link":"https:\/\/hosting175685eu-cp704.wordpresstemporal.com\/ca\/comportament-hidrofobic-emulsions-cera-concentrol\/","title":{"rendered":"Comportament hidrof\u00f2bic de les Emulsions de Cera"},"content":{"rendered":"

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[vc_row][vc_column][vc_column_text uncode_shortcode_id=\u00bb532580″]Concentrol, a trav\u00e9s de la divisi\u00f3 d’ additius, fabrica les emulsions de cera Emultrol\u00ae<\/strong>. Aquest grup de solucions est\u00e0 format per una \u00e0mplia i vers\u00e0til gamma de productes, la qual cosa permet incidir en molts i diversos sectors d’ aplicaci\u00f3. Alguns d’ells s\u00f3n de vital import\u00e0ncia en l’economia, com els sectors t\u00e8xtil, paperer, del cartr\u00f3, l\u00e0tex, suro, pintures, tintes i alimentaci\u00f3. Concentrol est\u00e0 en constant proc\u00e9s d’investigaci\u00f3 per mirar de trobar la millor soluci\u00f3 possible per als clients<\/strong>. En l’ estudi que es presenta a continuaci\u00f3, l’ empresa va comparar el comportament hidr\u00f2fob de les emulsions de cera de parafina de dos dels seus productes de refer\u00e8ncia amb un producte d’ un competidor.<\/span><\/p>\n

Emulsions de cera<\/h3>\n

Les emulsions de cera<\/strong><\/span> s\u00f3n mescles estables d’ una o m\u00e9s ceres en aigua. Les ceres poden ser naturals o sint\u00e8tiques. Segons la naturalesa del sistema emulsionant, es classifiquen en i\u00f2niques, no ani\u00f2niques i cati\u00f2niques, tot i que tamb\u00e9 es pot utilitzar una barreja d’ emulsionants. Sabem que les formulacions aquoses s\u00f3n complexes, per la qual cosa aquests additius no contenen dissolvents org\u00e0nics (a base d’aigua). Les emulsions de cera s’ utilitzen com a additius industrials per a<\/span> pintures, tintes i vernissos<\/strong>,<\/span> entre d’ altres. Es poden utilitzar en formulacions de productes per al tractament de s\u00f2ls, acabats de fusta, productes per al tractament de s\u00f2ls, acabats de fusta, productes per a la cura de l’ autom\u00f2bil, paper, pintures i revestiments, tintes i vernissos, fibra de vidre, t\u00e8xtils, \u00fas dom\u00e8stic, lubricants i agents desemmotllants.<\/span><\/p>\n

Les emulsions de cera s\u2019ofereixen en forma de fluids per facilitar-ne l\u2019\u00fas, la dosificaci\u00f3 i la incorporaci\u00f3 per a m\u00e9s comoditat dels clients.<\/span><\/p>\n

\"\"<\/a><\/p>\n

Aquests productes permeten aconseguir propietats de <\/span>suavitat, efecte mat o brillant, efecte antilliscant, resist\u00e8ncia al ratllat, impermeabilitat i duresa<\/span><\/strong>.<\/strong> Modifiquen l’ acabat superficial per millorar i protegir l’ aspecte en la interf\u00edcie entre el revestiment i l’ exterior. La penetraci\u00f3 d’aigua a trav\u00e9s dels espais de les parets, ja sigui per contacte directe prolongat o a causa de la humitat, pot afectar significativament la durabilitat de les parets causant danys estructurals i\/o aparici\u00f3 de floridura, a m\u00e9s de resultar insalubre, molest i antiest\u00e8tic. L’ \u00fas d’ emulsions de cera en les pintures per <\/span>augmentar la repel\u00b7l\u00e8ncia a l’ aigua<\/span><\/strong> \u00e9s una pr\u00e0ctica molt comuna.<\/span><\/p>\n

Les emulsions que s’ esmenten a continuaci\u00f3 estan dissenyades per garantir les millors prestacions d’ impermeabilitzaci\u00f3. Es caracteritzen per un excel\u00b7lent efecte barrera a l’aigua i una gran capacitat de cobriment.<\/span><\/p>\n

Estudi d’hidrofobicitat<\/h3>\n

El present estudi compara el comportament hidr\u00f2fob de les emulsions de parafina Emultrol CM-2655 E i CM-2469 SPL amb el producte d’un competidor<\/span> (<\/span>veure Quadre 1 – Caracter\u00edstiques de les emulsions a comparar)<\/em>.<\/span><\/p>\n

\"\"<\/a><\/p>\n

En primer lloc per avaluar el comportament hidr\u00f2fob de cada producte, s’aplica una capa de cadascuna de les emulsions (30 \u03bcm humida) sobre paper i es deixa assecar completament (m\u00ednima 12 h a temperatura ambient). A continuaci\u00f3, es deixa caure una gota d’aigua sobre aquesta capa, per tal d’observar l’angle d’humectaci\u00f3<\/span> (<\/span>veure Figura 1<\/span><\/em>).<\/span><\/p>\n

Resultats<\/h3>\n

Els resultats obtinguts mostren que les gotes sobre els productes EMULTROL CM-2655 E i EMULTROL CM-2469 SPL<\/strong> presenten un angle de contacte superior al de la gota sobre el producte d’ un competidor. Aquest comportament, denominat efecte llot, demostra una hidrofobicitat superior en els dos primers productes en comparaci\u00f3 amb el segon.<\/span><\/p>\n

A m\u00e9s, es va avaluar el comportament d’aquestes gotes durant uns minuts. En la <\/span>Figura 2<\/span><\/em>, s’ observa com, amb el temps, la gota d’ aigua sobre el producte de la compet\u00e8ncia s’ absorbeix en el paper, la qual cosa indica una clara re emulsi\u00f3 del producte. Aquest efecte es pot observar ja des del principi<\/span> (veure la <\/span>Figura 1<\/span><\/em>).<\/span><\/p>\n

Cal assenyalar que, al cap de 10 minuts, la gota de producte <\/span>EMULTROL CM-2655 E<\/span><\/strong> comen\u00e7a a humitejar lentament una petita zona del paper, sense arribar a absorbir-se per complet.<\/span><\/p>\n

Figura 1<\/span> – Aparici\u00f3 de gotes d’aigua sobre les capes de producte en paper.<\/span><\/em><\/p>\n

\"\"<\/a>Figura 2 – Aparici\u00f3 de les gotes d’aigua despr\u00e9s d’1, 2 i 10 minuts.<\/em>
\n<\/span><\/p>\n

\"\"<\/a><\/p>\n

En conclusi\u00f3, des de Concentrol considerem que els productes <\/span>EMULTROL CM-2655 E<\/span> i <\/span>CM-2469 SPL<\/span> s\u00f3n bons candidats per al seu \u00fas com a additius hidr\u00f2fugs. Concentrol recomana realitzar proves amb la formulaci\u00f3 completa, aix\u00ed com fer una comparaci\u00f3 amb els additius alternatius utilitzats per cada client.<\/span><\/p>\n

AUTORA<\/span>: Ms. Carlota Claras\u00f3 – R&D Technical Department<\/span><\/strong><\/p>\n

 <\/p>\n

Come and learn about these solutions at stand 3A-220 of the ECS2025 exhibition from March 25 to 27.<\/b>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=\u00bb1\/1″][vc_button border_width=\u00bb0″ link=\u00bburl:https%3A%2F%2Fconcentrol.com%2Fwp-content%2Fuploads%2F2025%2F02%2FECS_CAT_Emulsion-de-cera-4.pdf|target:_blank\u00bb uncode_shortcode_id=\u00bb496811″]Download infographic[\/vc_button][vc_column_text uncode_shortcode_id=\u00bb162654″]

ECS_CAT_Emulsion-de-cera-4<\/a><\/div>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n

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\n<\/div>","protected":false},"excerpt":{"rendered":"

  [vc_row][vc_column][vc_column_text uncode_shortcode_id=\u00bb532580″]Concentrol, a trav\u00e9s de la divisi\u00f3 d’ additius, fabrica les emulsions de cera Emultrol\u00ae. Aquest grup de solucions […]<\/p>\n","protected":false},"author":35,"featured_media":165056,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[128],"tags":[],"class_list":["post-162634","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-additiusrb"],"acf":[],"yoast_head":"\nComportament hidrof\u00f2bic de les Emulsions de Cera<\/title>\n<meta name=\"description\" content=\"Concentrol - Chemical Solutions\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/concentrol.com\/ca\/comportament-hidrofobic-emulsions-cera-concentrol\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comportament hidrof\u00f2bic de les 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