{"id":3125,"date":"2025-04-29T14:13:30","date_gmt":"2025-04-29T06:13:30","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3125"},"modified":"2025-06-04T11:49:19","modified_gmt":"2025-06-04T03:49:19","slug":"optimizing-paper-performance-with-calcium-carbonate-fillers","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/pt\/optimizing-paper-performance-with-calcium-carbonate-fillers\/","title":{"rendered":"Otimizando o desempenho do papel com cargas de carbonato de c\u00e1lcio"},"content":{"rendered":"<p>A fabrica\u00e7\u00e3o de papel utiliza madeira, junco, baga\u00e7o, palha, palha de trigo, talos de algod\u00e3o, talos de c\u00e2nhamo e algod\u00e3o como mat\u00e9rias-primas. Produz celulose e, em seguida, a transforma em papel e papel\u00e3o. A fabrica\u00e7\u00e3o de papel envolve a tritura\u00e7\u00e3o da polpa, a colagem, a adi\u00e7\u00e3o de cargas e outros tratamentos. \u00c9 um processo complexo para formar papel com diversas propriedades. Por que precisamos de cargas na fabrica\u00e7\u00e3o de papel? Quais s\u00e3o as fun\u00e7\u00f5es de <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/astra-portfolio\/grinding-and-classifying-system-for-the-production-of-calcium-carbonate\/\">carbonato de c\u00e1lcio<\/a>, o enchimento mais utilizado na fabrica\u00e7\u00e3o de papel? Cada papeleiro tem suas pr\u00f3prias respostas. Por exemplo, adicionar uma certa quantidade de <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/three-roller-coating-machine\/\">carbonato de c\u00e1lcio <\/a>As cargas aumentam o n\u00famero de interfaces internas de dispers\u00e3o de luz. Essas interfaces existem entre fibras e ar, cargas e fibras, e cargas e ar. Entre elas, a diferen\u00e7a no \u00edndice de refra\u00e7\u00e3o entre cargas e ar \u00e9 a maior. Isso aumenta significativamente a opacidade do papel.<\/p>\n\n\n\n<p>\u00c9 claro que a adi\u00e7\u00e3o de cargas tamb\u00e9m melhora o brilho, a uniformidade e o toque do papel. Mais importante ainda, as cargas permitem uma economia de fibras de 5% a 30%. Isso resulta em uma redu\u00e7\u00e3o significativa nos custos de produ\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"650\" height=\"480\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coated-base-paper.webp\" alt=\"Papel base revestido\" class=\"wp-image-3127\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coated-base-paper.webp 650w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coated-base-paper-300x222.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coated-base-paper-16x12.webp 16w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">O primeiro pigmento e enchimento na fabrica\u00e7\u00e3o de papel \u2013 <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/cell-mill-coating-machine\/\">carbonato de c\u00e1lcio<\/a><\/h2>\n\n\n\n<p>Desde a promo\u00e7\u00e3o da tecnologia de colagem neutra, o carbonato de c\u00e1lcio tem sido amplamente utilizado na fabrica\u00e7\u00e3o de papel. Ele serve tanto como enchimento quanto como pigmento de revestimento. O carbonato de c\u00e1lcio \u00e9 abundante e barato. Seu tamanho de part\u00edcula fino e alta brancura aumentam significativamente a opacidade do papel. Ele aumenta a absor\u00e7\u00e3o de tinta e torna o papel mais macio e denso. Tamb\u00e9m melhora o brilho do papel e tem impacto m\u00ednimo na resist\u00eancia f\u00edsica.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Como enchimento<\/h3>\n\n\n\n<p>O carbonato de c\u00e1lcio mo\u00eddo (GCC) \u00e9 usado principalmente como carga em pap\u00e9is de impress\u00e3o, papel de escrita, papel de escrit\u00f3rio e papel publicit\u00e1rio, excluindo papel para cigarros, papel de filtro e alguns pap\u00e9is informativos especiais de baixa gramatura. Na pr\u00e1tica, pap\u00e9is revestidos requerem GCC com 325 mesh, brancura acima de 92 e teor de CaCO\u2083 acima de 98%. Para pap\u00e9is de quadro branco e produtos similares, o GCC deve ter finura de 1250 mesh ou superior, brancura acima de 92 e teor de CaCO\u2083 acima de 98%.<\/p>\n\n\n\n<p>O carbonato de c\u00e1lcio precipitado (PCC) pode, em princ\u00edpio, ser usado como enchimento em todos os tipos de papel. Atualmente, \u00e9 usado principalmente como enchimento para pap\u00e9is de alta qualidade. Exemplos incluem papel para cigarros, papel para informa\u00e7\u00f5es de escrit\u00f3rio (como papel para fax, papel para registro de instrumentos, papel para impress\u00e3o a jato de tinta), papel jornal de baixa gramatura e papel revestido de baixa gramatura.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Como pigmento de revestimento<\/h3>\n\n\n\n<p>O carbonato de c\u00e1lcio pesado pode ser usado como pigmento para primers e acabamentos, melhorando a qualidade e a uniformidade dos produtos impressos. Muitas caracter\u00edsticas do papel revestido tamb\u00e9m dependem da escolha do pigmento. O carbonato de c\u00e1lcio possui alta brancura e boa fluidez, sendo adequado para a prepara\u00e7\u00e3o de revestimentos com alto teor de s\u00f3lidos. Requer menos adesivo e pode melhorar a absor\u00e7\u00e3o de tinta do revestimento. Pode proporcionar boa brancura e tonalidade de cor, al\u00e9m de melhorar a permeabilidade ao ar. \u00c9 um dos pigmentos de revestimento mais utilizados.<\/p>\n\n\n\n<p>A aplica\u00e7\u00e3o de carbonato de c\u00e1lcio leve em pigmentos de revestimento de papel visa principalmente compensar a defici\u00eancia de caulim e carbonato de c\u00e1lcio pesado. \u00c9 geralmente usado em pap\u00e9is base revestidos de baixa gramatura, pap\u00e9is revestidos de alto brilho e pap\u00e9is revestidos foscos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sele\u00e7\u00e3o de carbonato de c\u00e1lcio para fabrica\u00e7\u00e3o de papel<\/h2>\n\n\n\n<p>Tanto o carbonato de c\u00e1lcio pesado quanto o carbonato de c\u00e1lcio leve apresentam vantagens espec\u00edficas como cargas para a fabrica\u00e7\u00e3o de papel. A escolha do carbonato de c\u00e1lcio deve ser determinada de acordo com os requisitos reais do processo de produ\u00e7\u00e3o de papel.<\/p>\n\n\n\n<p>A quantidade de carga adicionada \u00e9 determinada principalmente por fatores como o tipo de papel, o tipo de celulose, as propriedades da pr\u00f3pria carga e as condi\u00e7\u00f5es de fabrica\u00e7\u00e3o da m\u00e1quina. Para economizar fibras vegetais e reduzir os custos de produ\u00e7\u00e3o, a quantidade de carga adicionada deve ser aumentada adequadamente, garantindo os requisitos de fabrica\u00e7\u00e3o e uso do papel.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"610\" height=\"797\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-filler-addition-amount.webp\" alt=\"Quantidade de adi\u00e7\u00e3o de enchimento de carbonato de c\u00e1lcio\" class=\"wp-image-3126\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-filler-addition-amount.webp 610w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-filler-addition-amount-230x300.webp 230w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-filler-addition-amount-9x12.webp 9w\" sizes=\"(max-width: 610px) 100vw, 610px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Modifica\u00e7\u00e3o de carbonato de c\u00e1lcio para fabrica\u00e7\u00e3o de papel<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"749\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coating-machine-1.webp\" alt=\"M\u00e1quina de revestimento\" class=\"wp-image-3256\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coating-machine-1.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coating-machine-1-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coating-machine-1-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Coating-machine-1-12x12.webp 12w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p>Embora o carbonato de c\u00e1lcio seja uma das principais cargas na ind\u00fastria papeleira, o carbonato de c\u00e1lcio n\u00e3o modificado apresenta baixa compatibilidade e baixa ades\u00e3o \u00e0s fibras de celulose. Possui baixas taxas de reten\u00e7\u00e3o e pode causar defeitos interfaciais, reduzindo a resist\u00eancia mec\u00e2nica do papel. Portanto, o carbonato de c\u00e1lcio requer tratamentos de modifica\u00e7\u00e3o. Os principais m\u00e9todos de modifica\u00e7\u00e3o incluem a modifica\u00e7\u00e3o qu\u00edmica do revestimento e a modifica\u00e7\u00e3o da superf\u00edcie.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Modifica\u00e7\u00e3o do revestimento qu\u00edmico<\/h3>\n\n\n\n<p>No sistema Ca(OH)\u2082\u2013H\u2082O\u2013CO\u2082, \u00e9 realizada a modifica\u00e7\u00e3o da superf\u00edcie do carbonato de c\u00e1lcio mo\u00eddo (GCC). Ap\u00f3s o nanorrevestimento, as superf\u00edcies de clivagem cristalina das part\u00edculas tornam-se rugosas e as bordas s\u00e3o passivadas. Isso melhora o desempenho da dispers\u00e3o. Ao mesmo tempo, existe atra\u00e7\u00e3o eletrost\u00e1tica entre o GCC nanorrevestido e as fibras, formando uma estrutura de rede dentro do papel. Isso gera fortes intera\u00e7\u00f5es entre as fibras, que, por sua vez, melhoram o \u00edndice de tra\u00e7\u00e3o, a reten\u00e7\u00e3o de carga, o \u00edndice de ruptura, o \u00edndice de rasgo e a resist\u00eancia \u00e0 dobra do papel preenchido.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/contact\/\">Modifica\u00e7\u00e3o de superf\u00edcie<\/a><\/h3>\n\n\n\n<p>O nanocarbonato de c\u00e1lcio pode ter sua superf\u00edcie modificada com (KH570). Ap\u00f3s a hidr\u00f3lise, o agente de acoplamento de silano KH570 produz grupos silanol (Si-OH), que se condensam com grupos hidroxila na superf\u00edcie do nanocarbonato de c\u00e1lcio para formar liga\u00e7\u00f5es Ca-O-Si est\u00e1veis. Isso proporciona um enxerto qu\u00edmico eficaz. O nanocarbonato de c\u00e1lcio modificado apresenta maior espa\u00e7amento entre camadas em seus cristais de superf\u00edcie, polaridade reduzida, menor energia de superf\u00edcie, lipofilicidade aprimorada e dispersibilidade aprimorada. Ap\u00f3s o revestimento, as propriedades \u00f3pticas s\u00e3o aprimoradas, a resist\u00eancia da superf\u00edcie do papel \u00e9 aumentada e a hidrofobicidade \u00e9 aprimorada.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Carbonato de c\u00e1lcio composto<\/h3>\n\n\n\n<p>Com os avan\u00e7os cont\u00ednuos nas tecnologias de fabrica\u00e7\u00e3o de papel e processamento de p\u00f3, o aproveitamento das propriedades f\u00edsicas e qu\u00edmicas complementares de diferentes minerais para aumentar o valor agregado e a funcionalidade do produto tornou-se uma tend\u00eancia clara. Na fabrica\u00e7\u00e3o de papel, tecnologias maduras foram desenvolvidas para misturar carbonato de c\u00e1lcio<br>com minerais como caulim, di\u00f3xido de tit\u00e2nio, pirofilita, dolomita, ilita, tremolita, talco e wollastonita para produzir produtos compostos. Embora os tipos e propor\u00e7\u00f5es usados em formula\u00e7\u00f5es espec\u00edficas variem ligeiramente, os princ\u00edpios b\u00e1sicos s\u00e3o bastante semelhantes.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Moinho de modifica\u00e7\u00e3o de superf\u00edcie de p\u00f3 de tr\u00eas rolos EPIC Powder para carbonato de c\u00e1lcio\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/pKNwlWKqKug?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>A ind\u00fastria papeleira tem uma grande demanda por cargas de carbonato de c\u00e1lcio e um alto n\u00edvel de aceita\u00e7\u00e3o no mercado, tornando-se um campo de aplica\u00e7\u00e3o relativamente maduro. No futuro, o carbonato de c\u00e1lcio para fabrica\u00e7\u00e3o de papel poder\u00e1 se concentrar no desenvolvimento de produtos funcionais e de alta pureza (como tipos modificados, morfologias especiais e formatos de part\u00edculas bem controlados) para buscar avan\u00e7os no mercado de m\u00e9dio a alto padr\u00e3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u00f3 \u00e9pico<\/h2>\n\n\n\n\n\n<p><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/\">P\u00f3 \u00e9pico,<\/a>&nbsp;Mais de 20 anos de experi\u00eancia na ind\u00fastria de p\u00f3s ultrafinos. Promovemos ativamente o desenvolvimento futuro de p\u00f3s ultrafinos, com foco em processos de britagem, moagem, classifica\u00e7\u00e3o e modifica\u00e7\u00e3o de p\u00f3s ultrafinos. Entre em contato conosco para uma consulta gratuita e solu\u00e7\u00f5es personalizadas! Nossa equipe de especialistas se dedica a fornecer produtos e servi\u00e7os de alta qualidade para maximizar o valor do seu processamento de p\u00f3s. Epic Powder \u2014 Seu especialista confi\u00e1vel em processamento de p\u00f3s!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/posts\/3125#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/posts\/3125#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu nome*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Sua empresa\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Sua mensagem\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Enviar\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"pt\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A fabrica\u00e7\u00e3o de papel utiliza madeira, junco, baga\u00e7o, palha, palha de trigo, talos de algod\u00e3o, talos de c\u00e2nhamo e algod\u00e3o como mat\u00e9rias-primas. Produz celulose e, em seguida, a transforma em papel e papel\u00e3o. A fabrica\u00e7\u00e3o de papel envolve a tritura\u00e7\u00e3o da polpa, a colagem, a adi\u00e7\u00e3o de cargas e outros tratamentos. \u00c9 um processo complexo para formar papel com diversas propriedades. Por que precisamos [\u2026]<\/p>","protected":false},"author":1,"featured_media":3129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","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-4)","background-image":"","background-repeat":"repeat","background-position":"center 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