{"id":1129,"date":"2025-07-16T04:50:59","date_gmt":"2025-07-16T04:50:59","guid":{"rendered":"https:\/\/sinocarbonfibre.com\/?post_type=product&#038;p=1129"},"modified":"2025-07-24T01:21:41","modified_gmt":"2025-07-24T01:21:41","slug":"unidirectional-prepreg","status":"publish","type":"product","link":"https:\/\/sinocarbonfibre.com\/pt\/produto\/unidirectional-prepreg\/","title":{"rendered":"Pr\u00e9-impregnado unidirecional"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"1129\" class=\"elementor elementor-1129\" data-elementor-post-type=\"product\">\n\t\t\t\t<div class=\"elementor-element elementor-element-117779f e-flex e-con-boxed e-con e-parent\" data-id=\"117779f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e04f2f elementor-widget elementor-widget-text-editor\" data-id=\"0e04f2f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O pr\u00e9-impregnado de fibra de carbono \u00e9 um material comp\u00f3sito de alto desempenho composto por fibra de carbono e sistema de resina pr\u00e9-impregnada. \u00c9 um material interm\u00e9dio fundamental no processo de fabrico de materiais comp\u00f3sitos de fibra de carbono e \u00e9 amplamente utilizado na ind\u00fastria aeroespacial, autom\u00f3vel, energia e\u00f3lica, equipamento desportivo e outros dom\u00ednios com requisitos de elevado desempenho.<\/p><h1><strong><b>Composi\u00e7\u00e3o de base<\/b><\/strong><\/h1><p>O pr\u00e9-impregnado de fibra de carbono \u00e9 composto principalmente por duas partes:<\/p><p><strong><b>Refor\u00e7o em fibra de carbono:<\/b><\/strong>\u00a0Normalmente, a fibra de carbono de alta resist\u00eancia e alto m\u00f3dulo \u00e9 utilizada como refor\u00e7o numa determinada disposi\u00e7\u00e3o (disposi\u00e7\u00e3o unidirecional ou forma de tecido).<\/p><p><strong><b>Sistema de resina pr\u00e9-impregnada:<\/b><\/strong>\u00a0incluindo materiais de matriz como resina ep\u00f3xi, resina fen\u00f3lica, resina de poliimida, e pode conter aditivos como agente de cura, agente de endurecimento, retardador de chama, etc.<\/p><h1><strong><b>Processo de fabrico<\/b><\/strong><\/h1><p>O processo de produ\u00e7\u00e3o de pr\u00e9-impregnados de fibra de carbono inclui as seguintes etapas:<\/p><ul><li>Prepara\u00e7\u00e3o da tela\/fio de fibra de carbono: selecionar materiais de fibra de carbono adequados e ajustar a sua disposi\u00e7\u00e3o de acordo com a utiliza\u00e7\u00e3o final.<\/li><li>Prepara\u00e7\u00e3o do sistema de resina: preparar a matriz de resina adequada de acordo com os requisitos de desempenho e ajustar a sua viscosidade, temperatura de cura e outros par\u00e2metros.<\/li><li>Processo de impregna\u00e7\u00e3o: A fibra de carbono \u00e9 impregnada uniformemente com resina atrav\u00e9s de processos como o revestimento, a fus\u00e3o a quente ou a impregna\u00e7\u00e3o com solvente.<\/li><li>Tratamento de semicura: Atrav\u00e9s do controlo da temperatura e do tempo, a resina atinge o estado adequado de \"fase B\", ou seja, o estado de semi-curado, que \u00e9 conveniente para o armazenamento e posterior processamento.<\/li><li>Enrolamento\/corte: O pr\u00e9-impregnado \u00e9 enrolado ou cortado em tamanhos adequados para posterior moldagem.<\/li><\/ul><h1><strong><b>Carater\u00edsticas<\/b><\/strong><\/h1><p>O pr\u00e9-impregnado de fibra de carbono tem as seguintes carater\u00edsticas principais<\/p><ul><li>Elevada resist\u00eancia espec\u00edfica e elevado m\u00f3dulo espec\u00edfico: A resist\u00eancia espec\u00edfica e o m\u00f3dulo espec\u00edfico excedem largamente os dos materiais met\u00e1licos, como o a\u00e7o e as ligas de alum\u00ednio.<\/li><li>Excelente resist\u00eancia \u00e0 corros\u00e3o: N\u00e3o \u00e9 afetada por factores ambientais gerais (tais como \u00e1gua, \u00e1cido e \u00e1lcalis).<\/li><li>Boa capacidade de conce\u00e7\u00e3o: O desempenho pode ser optimizado atrav\u00e9s do ajuste do \u00e2ngulo de coloca\u00e7\u00e3o, do n\u00famero de camadas e do sistema de resina.<\/li><li>Leveza: A baixa densidade pode reduzir significativamente o peso da estrutura, especialmente adequada para as ind\u00fastrias aeroespacial e autom\u00f3vel.<\/li><li>Processamento c\u00f3modo: Tem uma forte plasticidade sob condi\u00e7\u00f5es de aquecimento e cura, e \u00e9 adequado para uma variedade de processos de moldagem, tais como coloca\u00e7\u00e3o autom\u00e1tica de fibras, coloca\u00e7\u00e3o manual e autoclave.<\/li><\/ul><h1><strong><b>Dom\u00ednios de aplica\u00e7\u00e3o<\/b><\/strong><\/h1><p>O pr\u00e9-impregnado de fibra de carbono \u00e9 amplamente utilizado nos seguintes dom\u00ednios devido \u00e0s suas excelentes propriedades mec\u00e2nicas e vantagens em termos de leveza:<\/p><ul><li>Aeroespacial: fuselagem de avi\u00e3o, asas, cap\u00f4 do motor, pe\u00e7as de foguet\u00f5es, etc.<\/li><li>Fabrico de autom\u00f3veis: carro\u00e7aria de autom\u00f3veis desportivos topo de gama, quadro, veio de transmiss\u00e3o, etc.<\/li><li>Ind\u00fastria da energia e\u00f3lica: p\u00e1s de turbinas e\u00f3licas, especialmente p\u00e1s de grandes dimens\u00f5es.<\/li><li>Artigos desportivos: raquetes de t\u00e9nis, quadros de bicicletas, esquis, tacos de golfe, etc.<\/li><li>Equipamento m\u00e9dico: Placas de cama de raios X, pr\u00f3teses, etc.<\/li><\/ul><h1><strong><b>Precau\u00e7\u00f5es de armazenamento e utiliza\u00e7\u00e3o<\/b><\/strong><\/h1><ul><li>Armazenamento a baixas temperaturas: geralmente armazenado a temperaturas inferiores a -18\u00b0C para evitar a cura prematura da resina.<\/li><li>Tempo de armazenamento limitado: o desempenho geralmente degrada-se ap\u00f3s ser armazenado \u00e0 temperatura ambiente durante algumas semanas.<\/li><li>Evitar a humidade: a fibra de carbono \u00e9 sens\u00edvel \u00e0 humidade e a absor\u00e7\u00e3o de humidade pode afetar o desempenho do produto final.<\/li><\/ul><h1><strong><b>Tend\u00eancia de desenvolvimento<\/b><\/strong><\/h1><ul><li>Pr\u00e9-impregnado amigo do ambiente: desenvolver sistemas de resina ecol\u00f3gicos com baixos compostos org\u00e2nicos vol\u00e1teis (COV).<\/li><li>Sistemas de resina de elevado desempenho: melhoram a resist\u00eancia a altas temperaturas, a tenacidade e a capacidade de auto-regenera\u00e7\u00e3o.<\/li><li>Fabrico inteligente: Combinado com a tecnologia de estratifica\u00e7\u00e3o automatizada para melhorar a efici\u00eancia da produ\u00e7\u00e3o e o controlo de qualidade.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6ff829 elementor-widget elementor-widget-shortcode\" data-id=\"b6ff829\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-15\" class=\"tablepress tablepress-id-15 tbody-has-connected-cells\">\n<tbody>\n<tr class=\"row-1\">\n\t<td rowspan=\"2\" class=\"column-1\">Pe\u00e7a n.<\/td><td colspan=\"2\" class=\"column-2\">Especifica\u00e7\u00e3o da fibra<\/td><td rowspan=\"2\" class=\"column-4\">M\u00e9todo do tecido<\/td><td rowspan=\"2\" class=\"column-5\">Peso da fibra (g\/m\u00b2)<\/td><td rowspan=\"2\" class=\"column-6\">Teor de resina (%)<\/td><td rowspan=\"2\" class=\"column-7\">Peso total do pr\u00e9-impregnado (g\/m\u00b2)<\/td><td rowspan=\"2\" class=\"column-8\">Espessura (mm)<\/td><td rowspan=\"2\" class=\"column-9\">Largura (mm)<\/td>\n<\/tr>\n<tr class=\"row-2\">\n\t<td class=\"column-2\">Deformar<\/td><td class=\"column-3\">Trama<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">H-CP1120<\/td><td class=\"column-2\">1K<\/td><td class=\"column-3\">1K<\/td><td class=\"column-4\">tecido liso<\/td><td class=\"column-5\">120<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">205<\/td><td class=\"column-8\">0.16<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">H-CT1120<\/td><td class=\"column-2\">1K<\/td><td class=\"column-3\">1K<\/td><td class=\"column-4\">sarja<\/td><td class=\"column-5\">120<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">205<\/td><td class=\"column-8\">0.16<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">H-CP3200<\/td><td class=\"column-2\">3K<\/td><td class=\"column-3\">3K<\/td><td class=\"column-4\">tecido liso<\/td><td class=\"column-5\">200<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">330<\/td><td class=\"column-8\">0.28<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">H-CT3200<\/td><td class=\"column-2\">3K<\/td><td class=\"column-3\">3K<\/td><td class=\"column-4\">sarja<\/td><td class=\"column-5\">200<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">330<\/td><td class=\"column-8\">0.28<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">H-CS3240<\/td><td class=\"column-2\">3K<\/td><td class=\"column-3\">3K<\/td><td class=\"column-4\">tecido acetinado<\/td><td class=\"column-5\">240<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">405<\/td><td class=\"column-8\">0.30<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">H-CP6320<\/td><td class=\"column-2\">6K<\/td><td class=\"column-3\">6K<\/td><td class=\"column-4\">tecido liso<\/td><td class=\"column-5\">320<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">530<\/td><td class=\"column-8\">0.40<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">H-CT6320<\/td><td class=\"column-2\">6K<\/td><td class=\"column-3\">6K<\/td><td class=\"column-4\">sarja<\/td><td class=\"column-5\">320<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">530<\/td><td class=\"column-8\">0.40<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">H-CS6400<\/td><td class=\"column-2\">6K<\/td><td class=\"column-3\">6K<\/td><td class=\"column-4\">tecido acetinado<\/td><td class=\"column-5\">400<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">665<\/td><td class=\"column-8\">0.40<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">H-CP12400<\/td><td class=\"column-2\">12K<\/td><td class=\"column-3\">12K<\/td><td class=\"column-4\">tecido liso<\/td><td class=\"column-5\">400<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">670<\/td><td class=\"column-8\">0.50<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">H-CT12480<\/td><td class=\"column-2\">12K<\/td><td class=\"column-3\">12K<\/td><td class=\"column-4\">sarja<\/td><td class=\"column-5\">400<\/td><td class=\"column-6\">40<\/td><td class=\"column-7\">800<\/td><td class=\"column-8\">0.55<\/td><td class=\"column-9\">1000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-15 from cache --><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>O pr\u00e9-impregnado de fibra de carbono \u00e9 um material comp\u00f3sito de alto desempenho composto por fibra de carbono e sistema de resina pr\u00e9-impregnada. \u00c9 um material interm\u00e9dio fundamental no processo de fabrico de materiais comp\u00f3sitos de fibra de carbono e \u00e9 amplamente utilizado na ind\u00fastria aeroespacial, autom\u00f3vel, energia e\u00f3lica, equipamento desportivo e outros dom\u00ednios com requisitos de elevado desempenho.<\/p>","protected":false},"featured_media":1130,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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