{"id":102716,"date":"2018-03-05T00:00:00","date_gmt":"2018-03-04T22:00:00","guid":{"rendered":"http:\/\/concentrol.efimatica.com\/emulsions-de-silicona-per-a-la-produccio-de-llana-de-roca\/"},"modified":"2025-07-31T12:36:18","modified_gmt":"2025-07-31T10:36:18","slug":"emulsions-de-silicona-per-a-la-produccio-de-llana-de-roca","status":"publish","type":"post","link":"https:\/\/hosting175685eu-cp704.wordpresstemporal.com\/ca\/emulsions-de-silicona-per-a-la-produccio-de-llana-de-roca\/","title":{"rendered":"Emulsions de silicona per a la producci\u00f3 de llana de roca"},"content":{"rendered":"<p>La llana de roca \u00e9s un elaborat a base de roca volc\u00e0nica, majorit\u00e0riament silicats com basalt i esc\u00f2ria reciclada de la ind\u00fastria de l\u2019acer, entre altres. La seva estructura fibrosa multidireccional permeten que en el seu interior pugui emmagatzemar aire relativament imm\u00f2bil fent que sigui ideal incorporar-lo a les estructures d\u2019edificacions com a a\u00efllant t\u00e8rmic o ac\u00fastic i com a protecci\u00f3 passiva contra el foc en edificacions.<\/p>\n<p>El proc\u00e9s de producci\u00f3 de la llana de roca consta de 5 fases clau, el triturat de la roca, la fosa de la roca, el filat, la premsa i curat dels filaments de roca i, finalment, els processos per donar forma al producte final.<\/p>\n<p>Primer es trituren les roques per tal que totes tinguin una mida i un pes uniformes. Posteriorment es posen a fondre en un forn a temperatures pr\u00f2ximes als 1500 \u00b0C, similars a les de l\u2019interior d\u2019un volc\u00e0. La lava obtinguda es passa per uns rodets que dispersen, per for\u00e7a centr\u00edfuga, la roca fosa en petits filaments per refredar el producte, un proc\u00e9s similar a l\u2019elaboraci\u00f3 del cot\u00f3 de sucre. Aquests filaments s\u2019acaben de refredar i es premsen.<\/p>\n<p>En el moment de la premsa \u00e9s necessari afegir-hi additius essencials per al proc\u00e9s de producci\u00f3 tals com emulsions de silicona que aglutinin les fibres i evitin que la llana de roca s\u2019enganxi als rodets de la cadena de producci\u00f3 alhora que facilita el lliscament per les cintes transportadores.<\/p>\n<p>Finalment la llana de roca s\u2019asseca en un forn per eliminar-li l\u2019aigua que s\u2019hi ha afegit i passa als processos de compactaci\u00f3 i tall previs als controls de qualitat i l\u2019embalatge. Les emulsions de silicona tamb\u00e9 incideixen positivament en els processos de tall, ja que confereixen a la llana de roca propietats hidr\u00f2fugues (impermeabilitzaci\u00f3) importants per als processos de tall mitjan\u00e7ant aigua a pressi\u00f3 i alhora milloren el tall en les talladores met\u00e0l\u00b7liques.<\/p>\n<p>Les emulsions de silicona contenen un component de silicona (generalment oli de silicona), aigua i els emulsionants necessaris per obtenir una emulsi\u00f3 estable. Des de la perspectiva qu\u00edmica, un component de silicona \u00e9s una cadena finita d\u2019\u00e0toms de silici i oxigen enlla\u00e7ats entre ells. A m\u00e9s d\u2019aquests enlla\u00e7os, el silici forma dos altres enlla\u00e7os amb grups org\u00e0nics, en la majoria de casos grups de tipus metil (CH3) que donen al component de silicona el seu caracter\u00edstic comportament semiorg\u00e0nic. En el cas de la producci\u00f3 de la llana de roca les emulsions de silicona s\u2019afegeixen a una barreja de taladrina i aigua.<\/p>\n<p style=\"text-align: center;\">\n<p>Concentrol fabrica emulsions de silicona amb propietats espec\u00edfiques per solucionar els problemes dels productors de llana de roca. Les refer\u00e8ncies que es preparen per a aquest sector s\u00f3n macro i microemulsions de silicona amb una mida de part\u00edcula entre 0,1 i 1 micres i menor de 0,4 micres respectivament. Les microemulsions s\u00f3n de m\u00e9s altes prestacions i permeten dosificacions m\u00e9s baixes. Totes pertanyen a la gama EMULTROL i tenen una bona humectaci\u00f3 pel que s\u00f3n f\u00e0cils d\u2019aplicar mitjan\u00e7ant vaporitzadors. Les macro-emulsions de silicona es poden formular amb olis de silicona de viscositats diverses, essent les de 350cps i 1000cps les m\u00e9s habituals mentre que les microemulsions estan formulades amb oli de silicona de molt elevada viscositat (&gt;100000).<\/p>\n<p>Com m\u00e9s densa \u00e9s la llana de roca millor \u00e9s l\u2019a\u00efllament per\u00f2 menor \u00e9s l\u2019efic\u00e0cia dels additius de silicona. Concentrol ha realitzat tests d\u2019homologaci\u00f3 de les refer\u00e8ncies d\u2019emulsions de silicona EMULTROL per a llana de roca d\u2019alta densitat per avaluar-ne el rendiment i les propietats amb resultats excel\u00b7lents.<\/p>\n<p>Propietats de les emulsions de silicona EMULTROL per als productors de llana de roca:<\/p>\n<ul>\n<li>Aplicaci\u00f3 mitjan\u00e7ant vaporitzadors.<\/li>\n<li>Propietats aglutinants per evitar que es dispersin els filaments.<\/li>\n<li>Propietats lubricants durant el proc\u00e9s de producci\u00f3 per tal que el producte no s\u2019enganxi a les cintes transportadores o rodets.<\/li>\n<li>Millora del tall en talladores met\u00e0l\u00b7liques.<\/li>\n<li>Hidrofugaci\u00f3, eviten l\u2019acumulaci\u00f3 d\u2019aigua.<\/li>\n<li>Tacte suau al producte acabat.<\/li>\n<li>Totes les refer\u00e8ncies s\u00f3n lliures d\u2019alquilfenols,<\/li>\n<li>Totes les refer\u00e8ncies que ofereix Concentrol compleixen amb la normativa FDA i algunes amb el Reglament (EU) 10\/2011 (Fig. 2).<\/li>\n<\/ul>\n<p>Les emulsions de silicona EMULTROL que fabrica Concentrol ofereixen rendiments excel\u00b7lents en la producci\u00f3 de llana de roca, algunes de les refer\u00e8ncies mantenen les seves propietats fins i tot en condicions de molt baixa temperatura.<\/p>\n<p>Concentrol t\u00e9 una llarga experi\u00e8ncia en la s\u00edntesi de productes de base silicona. Un control \u00edntegre de \u00a0la seva producci\u00f3 i un equip t\u00e8cnic altament qualificat permeten adaptar-los a diferents requeriments i situacions, ajustant les propietats de manera que ofereixin uns resultats excel\u00b7lents amb la millor relaci\u00f3 cost-qualitat.<\/p>\n<p><a href=\"https:\/\/concentrol.com\/wp-content\/uploads\/2020\/08\/ES_Infografia_stonewool.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">Descarregar infogr\u00e0fic<\/a><\/p>\n<div class=\"wp-block-pdfemb-pdf-embedder-viewer\"><a href=\"https:\/\/concentrol.com\/wp-content\/uploads\/2020\/08\/ES_Infografia_stonewool.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">ES_Infografia_stonewool<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>La llana de roca \u00e9s un elaborat a base de roca volc\u00e0nica, majorit\u00e0riament silicats com basalt i esc\u00f2ria reciclada de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":102168,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[128],"tags":[147],"class_list":["post-102716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-additiusrb","tag-textil"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Emulsions de silicona per a la producci\u00f3 de llana de roca<\/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\/emulsions-de-silicona-per-a-la-produccio-de-llana-de-roca\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" 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