{"id":6699,"date":"2024-11-19T14:13:50","date_gmt":"2024-11-19T14:13:50","guid":{"rendered":"https:\/\/jinsuncarbon.com\/?p=6699"},"modified":"2024-11-19T14:19:32","modified_gmt":"2024-11-19T14:19:32","slug":"o-que-e-negro-de-fumo","status":"publish","type":"post","link":"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/","title":{"rendered":"O que \u00e9 negro de fumo? Guia f\u00e1cil para os conceitos b\u00e1sicos"},"content":{"rendered":"<p>O negro de fumo \u00e9 um p\u00f3 preto puro e tamb\u00e9m \u00e9 chamado de fuma\u00e7a de carbono. Ele consiste em carbono elementar, uma forma amorfa de <a href=\"https:\/\/jinsuncarbon.com\/pt\/\/criador-de-carbono\/\">carbono<\/a>. O principal material usado como base em muitos setores \u00e9 o negro de fumo. A combust\u00e3o de hidrocarbonetos com ar insuficiente produz o negro de fumo. Ao contr\u00e1rio da fuligem, o negro de fumo n\u00e3o cont\u00e9m nenhuma contamina\u00e7\u00e3o inorg\u00e2nica e res\u00edduos org\u00e2nicos extra\u00edveis.<img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-6702 aligncenter\" src=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black.jpg\" alt=\"Preto carbono\" width=\"593\" height=\"394\" srcset=\"https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black.jpg 1024w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black-300x199.jpg 300w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black-768x510.jpg 768w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black-18x12.jpg 18w, https:\/\/jinsuncarbon.com\/wp-content\/uploads\/2024\/11\/Carbon-black-600x398.jpg 600w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Properties_of_Carbon_Black\" >Propriedades do negro de fumo<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Particle_Size\" >Tamanho da part\u00edcula<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Structure\" >Estrutura<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Porosity\" >Porosidade<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Chemical_composition\" >Composi\u00e7\u00e3o qu\u00edmica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Surface_Chemistry\" >Qu\u00edmica de superf\u00edcie<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Density\" >Densidade<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Color\" >Cor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Solubility\" >Solubilidade<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Heat_Dissipation\" >Dissipa\u00e7\u00e3o de calor<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#What_Is_Carbon_Black_Used_for\" >Para que \u00e9 usado o negro de fumo?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Tire_and_Rubber_Industries\" >Ind\u00fastrias de pneus e borracha<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Plastics_and_Coatings\" >Pl\u00e1sticos e revestimentos<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Carbon_black_grades\" >Classes de negro de fumo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#How_is_carbon_black_made\" >Como o negro de fumo \u00e9 produzido?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#What_is_the_Carbon_black_price_in_the_market\" >Qual \u00e9 o pre\u00e7o do negro de fumo no mercado?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Raw_material_costs\" >Custos de mat\u00e9ria-prima<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Market_Supply_and_Demand_Relationship\" >Rela\u00e7\u00e3o entre oferta e demanda do mercado<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Carbon_black_vs_Graphite\" >Negro de fumo vs. grafite<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Chemical_properties\" >Propriedades qu\u00edmicas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Physical_Properties\" >Propriedades f\u00edsicas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Optical_Properties\" >Propriedades \u00f3pticas<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Carbon_black_environment_impact\" >Impacto ambiental do negro de fumo<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Energy_consumption\" >Consumo de energia<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Air_pollution\" >Polui\u00e7\u00e3o do ar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Substitution_and_Sustainability\" >Substitui\u00e7\u00e3o e sustentabilidade<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Properties_of_Carbon_Black\"><\/span>Propriedades do negro de fumo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>O negro de fumo pode ser considerado o nanomaterial mais amplamente utilizado. Ele consiste em estruturas microcristalinas com di\u00e2metros de dezenas a centenas de nan\u00f4metros. A tabela abaixo apresenta uma vis\u00e3o geral completa das propriedades f\u00edsico-qu\u00edmicas do negro de fumo; ela resume as principais caracter\u00edsticas e as propriedades que s\u00e3o relevantes nos setores.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Particle_Size\"><\/span>Tamanho da part\u00edcula<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O tamanho pode ser definido como o di\u00e2metro m\u00e9dio das part\u00edculas de negro de fumo, que normalmente consiste em algo entre 10 e 200 nan\u00f4metros. As dimens\u00f5es diferem em v\u00e1rias distribui\u00e7\u00f5es das part\u00edculas e est\u00e3o relacionadas a diferentes processos de produ\u00e7\u00e3o e naturezas das mat\u00e9rias-primas.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Structure\"><\/span>Estrutura<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O negro de fumo consiste em \"part\u00edculas\" prim\u00e1rias ou \"n\u00f3dulos\" que se fundem em entidades coloidais r\u00edgidas chamadas agregados. Esses n\u00f3dulos consistem em micro pilhas de grafite com seu eixo c perpendicular \u00e0 superf\u00edcie.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Porosity\"><\/span>Porosidade<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os poros do negro de fumo s\u00e3o de dois tipos: microporosos e mesoporosos. O primeiro refere-se a menos de 2 nm de tamanho de poro, enquanto o segundo refere-se a poros entre 2 nm e 50 nm. Esses poros aumentam a resist\u00eancia ao envelhecimento e \u00e0 abras\u00e3o da borracha.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chemical_composition\"><\/span>Composi\u00e7\u00e3o qu\u00edmica<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os principais componentes do negro de fumo s\u00e3o carbono elementar (&gt;97%), hidrog\u00eanio, oxig\u00eanio, enxofre e nitrog\u00eanio.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Surface_Chemistry\"><\/span>Qu\u00edmica de superf\u00edcie<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Os grupos funcionais de oxig\u00eanio (fen\u00f3is, quinonas, grupos carbox\u00edlicos) na superf\u00edcie do negro de fumo afetam sua reatividade, dispers\u00e3o e propriedades el\u00e9tricas. A oxida\u00e7\u00e3o do negro de fumo melhora a dispers\u00e3o dos pigmentos de negro de fumo e, ao mesmo tempo, reduz o pH e altera a cin\u00e9tica da sulfata\u00e7\u00e3o.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Density\"><\/span>Densidade<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A densidade do negro de fumo est\u00e1 entre a densidade aparente e a densidade real. Diferentes tipos de negros de fumo t\u00eam diferentes densidades de empacotamento. Entre eles, o negro de fumo vulcanizado e o pirol\u00edtico t\u00eam densidades de empacotamento mais altas, e o negro de fumo tratado na superf\u00edcie em fase gasosa tem densidades de empacotamento mais baixas.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Color\"><\/span>Cor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O negro de fumo \u00e9 geralmente dividido em negro de fumo de alta pigmenta\u00e7\u00e3o, m\u00e9dia pigmenta\u00e7\u00e3o, pigmenta\u00e7\u00e3o comum e baixa pigmenta\u00e7\u00e3o, de acordo com a intensidade da cor e o tamanho da part\u00edcula. Ele tem bom desempenho de dispers\u00e3o, poder de colora\u00e7\u00e3o e forte poder de cobertura.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Solubility\"><\/span>Solubilidade<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ele tem propriedades de dissolu\u00e7\u00e3o irrevers\u00edveis e \u00e9 dif\u00edcil de ser dissolvido na forma l\u00edquida. Entretanto, o negro de fumo real \u00e9 parcialmente dissolvido sob algumas condi\u00e7\u00f5es especiais.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Heat_Dissipation\"><\/span>Dissipa\u00e7\u00e3o de calor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A dispers\u00e3o t\u00e9rmica do negro de fumo afeta as propriedades mec\u00e2nicas, a resist\u00eancia ao calor e a estabilidade oxidativa dos produtos de borracha. A mistura mec\u00e2nica e o processamento \u00famido ou seco s\u00e3o m\u00e9todos t\u00edpicos para obter a dispers\u00e3o do negro de fumo. Dispersantes, modificadores de superf\u00edcie e m\u00e9todos sofisticados de processamento frequentemente o distribuem de maneira mais uniforme.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Carbon_Black_Used_for\"><\/span>Para que \u00e9 usado o negro de fumo?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Tire_and_Rubber_Industries\"><\/span>Ind\u00fastrias de pneus e borracha<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O negro de fumo tamb\u00e9m \u00e9 um termo gen\u00e9rico para uma grande classe de produtos de refor\u00e7o para borracha. Atualmente, o mundo produz e consome 70% do suprimento mundial de produ\u00e7\u00e3o de negro de fumo para o setor de pneus de borracha. O negro de fumo \u00e9 adicionado aos pneus para aumentar a resist\u00eancia \u00e0 abras\u00e3o, melhorar a tra\u00e7\u00e3o ou a ader\u00eancia do pneu ao solo e refor\u00e7ar o desempenho do pneu em termos de durabilidade e estabilidade.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Plastics_and_Coatings\"><\/span>Pl\u00e1sticos e revestimentos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u00a0Pl\u00e1sticos<\/strong><\/p>\n<p>O negro de fumo \u00e9 utilizado nos seguintes pl\u00e1sticos: polietileno, polipropileno, cloreto de polivinila e <a href=\"https:\/\/en.wikipedia.org\/wiki\/Polystyrene#:~:text=Polystyrene%20(PS)%20%2F%CB%8Cp,inexpensive%20resin%20per%20unit%20weight.\" target=\"_blank\" rel=\"noopener\">poliestireno<\/a>A tecnologia de ponta \u00e9 a mais avan\u00e7ada, melhorando propriedades mec\u00e2nicas como resist\u00eancia \u00e0 tra\u00e7\u00e3o e \u00e0 abras\u00e3o, proporcionando condutividade el\u00e9trica e resist\u00eancia ao calor e \u00e0s intemp\u00e9ries.<\/p>\n<p><strong>Revestimentos<\/strong><\/p>\n<p>Ele desempenha um papel importante em <a href=\"https:\/\/en.wikipedia.org\/wiki\/Coating\" target=\"_blank\" rel=\"noopener\">revestimentos<\/a> para constru\u00e7\u00e3o, autom\u00f3veis, vag\u00f5es de trem e navios. Em geral, os revestimentos exigem as seguintes propriedades: alta escurid\u00e3o, boas propriedades de fluxo e boa estabilidade contra sedimenta\u00e7\u00e3o.<\/p>\n<p><strong>Materiais eletr\u00f4nicos e de condu\u00e7\u00e3o<\/strong><\/p>\n<p>A condutividade do negro de fumo est\u00e1 relacionada \u00e0 estrutura, \u00e0 superf\u00edcie e \u00e0 densidade do tamanho das part\u00edculas, principalmente por meio de canais condutores e do mecanismo de emiss\u00e3o de campo.<\/p>\n<p><strong>Blindagem EMI<\/strong><\/p>\n<p>A condutividade pode ser obtida por meio de compostos de negro de fumo e pol\u00edmero, sendo que o negro de fumo \u00e9 usado principalmente como a principal mat\u00e9ria-prima, com a adi\u00e7\u00e3o de determinados enchimentos e adesivos. Devido \u00e0s suas qualidades condutoras, antiest\u00e1ticas e de prote\u00e7\u00e3o contra interfer\u00eancia eletromagn\u00e9tica, o negro de fumo condutor tamb\u00e9m pode ser usado na produ\u00e7\u00e3o de materiais de prote\u00e7\u00e3o eletromagn\u00e9tica.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Carbon_black_grades\"><\/span>Classes de negro de fumo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>De acordo com o tamanho da part\u00edcula, a estrutura (como a \u00e1rea de superf\u00edcie e os valores de DBPA) e as propriedades de uso, seus graus geralmente s\u00e3o divididos nas seguintes categorias:<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"204\">Super Abrasion Furnace Preto, SAF<\/td>\n<td width=\"203\">Tamanho m\u00ednimo de part\u00edcula e alta resist\u00eancia \u00e0 abras\u00e3o para bandas de rodagem de pneus especiais exigentes<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<tr>\n<td width=\"204\">Preto para forno de alta abras\u00e3o, HAF<\/td>\n<td width=\"203\">Tamanho de part\u00edcula ligeiramente maior, combinando alta resist\u00eancia ao desgaste e boa processabilidade<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<tr>\n<td width=\"204\">Preto para forno de alta abras\u00e3o para uso geral, GP-HAF<\/td>\n<td width=\"203\">Tamanho m\u00e9dio das part\u00edculas, alta resist\u00eancia \u00e0 abras\u00e3o<\/td>\n<\/tr>\n<tr>\n<td width=\"204\">Forno Semi-Refor\u00e7ado Preto, SRF<\/td>\n<td width=\"203\">Propriedades de baixo refor\u00e7o com alto m\u00f3dulo e baixa expans\u00e3o modal<\/td>\n<\/tr>\n<tr>\n<td width=\"204\">Forno de uso geral preto, GPF<\/td>\n<td width=\"203\">Negro de fumo de uso geral com m\u00f3dulo m\u00e9dio e boa resist\u00eancia \u00e0 fadiga por flex\u00e3o<\/td>\n<\/tr>\n<tr>\n<td width=\"204\">Preto t\u00e9rmico<\/td>\n<td width=\"203\">Maior tamanho de part\u00edcula, baixa estrutura<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"How_is_carbon_black_made\"><\/span>Como o negro de fumo \u00e9 produzido?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Carbono negro do forno<\/strong><\/p>\n<p>Ele \u00e9 derivado da combust\u00e3o incompleta do \u00f3leo da mat\u00e9ria-prima em um reator.<\/p>\n<p><strong>Canal Preto<\/strong><\/p>\n<p>Ela \u00e9 produzida a partir de g\u00e1s natural e tem as vantagens de ter part\u00edculas min\u00fasculas, grande \u00e1rea de superf\u00edcie espec\u00edfica, alta escurid\u00e3o e forte poder de colora\u00e7\u00e3o. Mais grupos funcionais de oxig\u00eanio podem retardar o processo de vulcaniza\u00e7\u00e3o da borracha para aumentar a fluidez e a capacidade de impress\u00e3o da tinta.<\/p>\n<p><strong>Preto t\u00e9rmico<\/strong><\/p>\n<p>Ele \u00e9 fabricado principalmente por craqueamento de g\u00e1s natural em alta temperatura em condi\u00e7\u00f5es livres de oxig\u00eanio e de chamas. A \u00e1rea de superf\u00edcie espec\u00edfica desse negro de fumo \u00e9 baixa, com baixo teor de oxig\u00eanio em sua superf\u00edcie.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_the_Carbon_black_price_in_the_market\"><\/span>Qual \u00e9 o pre\u00e7o do negro de fumo no mercado?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Raw_material_costs\"><\/span>Custos de mat\u00e9ria-prima<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>O negro de fumo utiliza principalmente mat\u00e9rias-primas produzidas com alcatr\u00e3o de carv\u00e3o. Recentemente, a flutua\u00e7\u00e3o do pre\u00e7o de mercado do alcatr\u00e3o de carv\u00e3o afetou diretamente os custos de produ\u00e7\u00e3o. No m\u00eas de mar\u00e7o deste ano, por exemplo, o pre\u00e7o do alcatr\u00e3o de carv\u00e3o subiu 645 d\u00f3lares americanos\/tonelada, aumentando o custo do negro de fumo.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Market_Supply_and_Demand_Relationship\"><\/span>Rela\u00e7\u00e3o entre oferta e demanda do mercado<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Portanto, no in\u00edcio de 2024, os fabricantes de negro de fumo na \u00c1sia previram que a demanda aumentaria significativamente e, portanto, aumentaram a produ\u00e7\u00e3o de acordo. No entanto, logo se percebeu que a taxa de aquisi\u00e7\u00e3o real era diferente da estimada. Isso causou um excesso de oferta no mercado. As condi\u00e7\u00f5es do mercado melhoraram recentemente devido ao final do trimestre, e os pre\u00e7os est\u00e3o se estabilizando a partir de agora.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Carbon_black_vs_Graphite\"><\/span>Negro de fumo vs. grafite<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h4><span class=\"ez-toc-section\" id=\"Chemical_properties\"><\/span>Propriedades qu\u00edmicas<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>As propriedades qu\u00edmicas do negro de fumo s\u00e3o relativamente ativas, ao passo que as propriedades qu\u00edmicas do grafite indicam estabilidade, alta temperatura e resist\u00eancia \u00e0 corros\u00e3o. <a href=\"https:\/\/jinsuncarbon.com\/pt\/o-que-e-grafite-e-de-que-e-feito-o-grafite\/\">Grafite<\/a> apresenta comportamento n\u00e3o sol\u00favel em \u00e1gua e em solventes org\u00e2nicos. Em altas temperaturas, ele reage prontamente com oxig\u00eanio ou metal e forma \u00f3xidos ou carbonetos, respectivamente.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Physical_Properties\"><\/span>Propriedades f\u00edsicas<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>O grafite tem diferentes estruturas de agrega\u00e7\u00e3o em cadeia ou em forma de uva, e sua apar\u00eancia principal \u00e9 cristalina. Tanto o grafite quanto o negro de fumo apresentam uma boa condutividade el\u00e9trica.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Optical_Properties\"><\/span>Propriedades \u00f3pticas<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>O grafite \u00e9 relativamente homog\u00eaneo em termos de escurid\u00e3o e tem um alto poder de dispers\u00e3o de luz e, portanto, n\u00e3o pode ser usado como um pigmento eficaz. A escurid\u00e3o do negro de fumo decorre principalmente de sua capacidade de absorver luz; geralmente, quanto mais fino o tamanho da part\u00edcula, maior a escurid\u00e3o.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Carbon_black_environment_impact\"><\/span>Impacto ambiental do negro de fumo<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h4><span class=\"ez-toc-section\" id=\"Energy_consumption\"><\/span><strong>Consumo de energia<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>O processo de fabrica\u00e7\u00e3o do negro de fumo envolve a combust\u00e3o de grandes quantidades de energia, como petr\u00f3leo e g\u00e1s natural. No entanto, o consumo excessivo de energia resulta na superutiliza\u00e7\u00e3o de recursos e na emiss\u00e3o de gases de efeito estufa.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Air_pollution\"><\/span><strong>Polui\u00e7\u00e3o do ar<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>A produ\u00e7\u00e3o de negro de fumo emite VOCs juntamente com material particulado, que contribuem para a degrada\u00e7\u00e3o da qualidade do ar.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Substitution_and_Sustainability\"><\/span><strong>Substitui\u00e7\u00e3o e sustentabilidade<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Devido \u00e0 natureza do processo de cria\u00e7\u00e3o do negro de fumo, h\u00e1 a possibilidade de utilizar energia limpa, solar e e\u00f3lica, al\u00e9m de incorporar res\u00edduos usados e materiais verdes alternativos.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclus\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>O negro de fumo \u00e9 uma subst\u00e2ncia indispens\u00e1vel na ind\u00fastria moderna. Devido \u00e0 sua alta colora\u00e7\u00e3o, alta condutividade el\u00e9trica e boa dispers\u00e3o t\u00e9rmica, ele se tornou muito importante em borracha, pl\u00e1sticos, revestimentos, tintas etc. O negro de fumo pode atender \u00e0s necessidades de diferentes setores em rela\u00e7\u00e3o \u00e0 polui\u00e7\u00e3o ambiental causada pela produ\u00e7\u00e3o, e ainda h\u00e1 necessidade de explorar como melhor\u00e1-lo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Carbon black is a pure black powder, and it has also been termed as carbon fume. It consists of elemental carbon, an amorphous form of carbon. The main material used as a base in many industries is carbon black. Insufficient air combustion of hydrocarbons produces carbon black. Unlike soot, carbon black does not contain any [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-6699","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-carbon-material"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.2.1 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Carbon Black? Easy Guide to Basics Easy Guide to Basics<\/title>\n<meta name=\"description\" content=\"Carbon black is a pure black powder, and it has also been termed as carbon fume. 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Guia f\u00e1cil para no\u00e7\u00f5es b\u00e1sicas Guia f\u00e1cil para no\u00e7\u00f5es b\u00e1sicas","description":"O negro de fumo \u00e9 um p\u00f3 preto puro e tamb\u00e9m \u00e9 chamado de fuma\u00e7a de carbono. Ele consiste em carbono elementar.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jinsuncarbon.com\/pt\/o-que-e-negro-de-fumo\/","og_locale":"pt_BR","og_type":"article","og_title":"What is Carbon Black? Easy Guide to Basics","og_description":"Carbon black is a pure black powder, and it has also been termed as carbon fume. 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