{"id":20164,"date":"2024-05-24T12:02:48","date_gmt":"2024-05-24T04:02:48","guid":{"rendered":"https:\/\/firstmold.com\/?p=20164"},"modified":"2025-07-15T13:33:00","modified_gmt":"2025-07-15T05:33:00","slug":"thermoplastics-and-thermosetting-plastics","status":"publish","type":"post","link":"https:\/\/firstmold.com\/pt\/tips\/thermoplastics-and-thermosetting-plastics\/","title":{"rendered":"As diferen\u00e7as entre os pl\u00e1sticos termopl\u00e1sticos e os pl\u00e1sticos termoendurec\u00edveis"},"content":{"rendered":"<p>Os pl\u00e1sticos podem ser classificados em pl\u00e1sticos termoendurec\u00edveis e termopl\u00e1sticos com base nas suas propriedades de superf\u00edcie quando aquecidos. Geralmente, os pl\u00e1sticos s\u00e3o s\u00f3lidos ou elast\u00f3meros \u00e0 temperatura ambiente. Para serem processados e moldados, t\u00eam normalmente de ser aquecidos at\u00e9 atingirem um estado viscoso e fluido e, em seguida, transformados na forma pretendida. Este processo cria certas diferen\u00e7as entre os dois tipos. Hoje, vamos discutir em pormenor as diferen\u00e7as entre os termopl\u00e1sticos e os pl\u00e1sticos termoendurec\u00edveis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-basics-of-thermoplastics-and-thermosetting-plastics\">No\u00e7\u00f5es b\u00e1sicas de termopl\u00e1sticos e pl\u00e1sticos termoendurec\u00edveis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-thermoplastics\">Termopl\u00e1sticos<\/h3>\n\n\n\n<p>Os termopl\u00e1sticos s\u00e3o uma classe de pl\u00e1sticos que podem ser moldados a uma determinada temperatura, solidificam ao arrefecer e podem repetir este processo v\u00e1rias vezes. <\/p>\n\n\n\n<p>S\u00e3o amplamente utilizados e consistem principalmente em resinas termopl\u00e1sticas misturadas com v\u00e1rios aditivos. A determinadas temperaturas, estes pl\u00e1sticos podem amolecer ou fundir-se em qualquer forma e manter essa forma ap\u00f3s o arrefecimento. Este estado pode ser alcan\u00e7ado repetidamente, e este processo envolve apenas altera\u00e7\u00f5es f\u00edsicas. <\/p>\n\n\n\n<p>Exemplos de termopl\u00e1sticos incluem o nylon (Nylon), o polietileno (PE), o polipropileno (PP), o cloreto de polivinilo (PVC), o acrilonitrilo-butadieno-estireno (ABS), o poliestireno (PS), o polioximetileno (POM), o policarbonato (PC), o poliuretano (PU) e o politetrafluoroetileno (Teflon, PTFE).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-thermosetting-plastics\">Pl\u00e1sticos termoendurec\u00edveis<\/h3>\n\n\n\n<p>Os pl\u00e1sticos termoendurec\u00edveis amolecem e fluem aquando do aquecimento inicial. Quando aquecidos a uma determinada temperatura, sofrem uma rea\u00e7\u00e3o qu\u00edmica conhecida como reticula\u00e7\u00e3o, o que faz com que endure\u00e7am irreversivelmente. Uma vez endurecidos, n\u00e3o podem ser amolecidos por reaquecimento. Esta carater\u00edstica \u00e9 utilizada nos processos de moldagem: durante o primeiro aquecimento, o pl\u00e1stico flui e preenche a cavidade do molde sob press\u00e3o, endurecendo depois para uma forma e tamanho fixos. <\/p>\n\n\n\n<p>Os pl\u00e1sticos termoendurec\u00edveis endurecem atrav\u00e9s de uma rea\u00e7\u00e3o qu\u00edmica ap\u00f3s aquecimento, adi\u00e7\u00e3o de press\u00e3o ou introdu\u00e7\u00e3o de um endurecedor, que altera a sua estrutura qu\u00edmica, tornando-os duros e insol\u00faveis em solventes, e n\u00e3o amolecem ap\u00f3s reaquecimento. <\/p>\n\n\n\n<p>Exemplos de pl\u00e1sticos termoendurec\u00edveis incluem os pl\u00e1sticos fen\u00f3licos, de ureia, melamina-formalde\u00eddo, ep\u00f3xi, poli\u00e9ster insaturado e silicone.<\/p>\n\n\n\n<p>As suas aplica\u00e7\u00f5es comuns incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pl\u00e1sticos fen\u00f3licos (utilizados para pegas de panelas)<\/li>\n\n\n\n<li>Melamina formalde\u00eddo (utilizado em laminados de pl\u00e1stico)<\/li>\n\n\n\n<li>Resinas epox\u00eddicas (utilizadas em adesivos)<\/li>\n\n\n\n<li>Poli\u00e9steres n\u00e3o saturados (utilizados em cascos de barcos)<\/li>\n\n\n\n<li>\u00c9steres de vinilo (utilizados em carro\u00e7arias de autom\u00f3veis)<\/li>\n\n\n\n<li>Poliuretano (utilizado em solas de sapatos e espumas)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-differences-between-thermoplastics-and-thermosetting-plastics\">Diferen\u00e7as entre os pl\u00e1sticos termopl\u00e1sticos e os pl\u00e1sticos termoendurec\u00edveis<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-molecular-structure\">1. Estrutura molecular<\/h3>\n\n\n\n<p>A diferen\u00e7a mais not\u00e1vel entre os termopl\u00e1sticos e os pl\u00e1sticos termoendurec\u00edveis \u00e9 que os termopl\u00e1sticos podem ser reaquecidos e amolecidos ap\u00f3s a cura. Em contrapartida, os pl\u00e1sticos termoendurec\u00edveis n\u00e3o podem ser amolecidos por reaquecimento depois de moldados; decomp\u00f5em-se a altas temperaturas.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Termopl\u00e1sticos:<\/strong> A estrutura molecular \u00e9 linear e, normalmente, n\u00e3o possui grupos reactivos. N\u00e3o sofrem reticula\u00e7\u00e3o aquando do aquecimento, permitindo que as cadeias moleculares deslizem livremente, pelo que fundem aquando do aquecimento e dissolvem-se em alguns solventes.<\/li>\n\n\n\n<li><strong>Pl\u00e1sticos termoendurec\u00edveis:<\/strong> Antes da moldagem, t\u00eam uma estrutura em cadeia semelhante \u00e0 dos termopl\u00e1sticos. Durante a moldagem, s\u00e3o submetidos a uma polimeriza\u00e7\u00e3o t\u00e9rmica ou qu\u00edmica para formar uma estrutura reticulada. Uma vez conclu\u00edda esta rea\u00e7\u00e3o, as mol\u00e9culas de pol\u00edmero formam uma rede tridimensional que impede o deslizamento das cadeias moleculares, resultando num s\u00f3lido insol\u00favel que n\u00e3o derrete.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-melting-point\">2. Ponto de fus\u00e3o<\/h3>\n\n\n\n<p>Os pl\u00e1sticos termoendurec\u00edveis t\u00eam um ponto de fus\u00e3o superior \u00e0 sua temperatura de degrada\u00e7\u00e3o. Degradam-se antes de derreterem quando s\u00e3o reaquecidos ap\u00f3s a cura, o que os torna n\u00e3o recicl\u00e1veis. Os termopl\u00e1sticos, no entanto, t\u00eam um ponto de fus\u00e3o mais baixo e existe um intervalo entre o seu ponto de fus\u00e3o e a temperatura de decomposi\u00e7\u00e3o t\u00e9rmica em que podem ser processados de v\u00e1rias formas, tais como moldagem por inje\u00e7\u00e3o, moldagem por sopro, extrus\u00e3o e sopro de pel\u00edcula. Pode ser refundido v\u00e1rias vezes, permitindo normalmente at\u00e9 sete ciclos de reciclagem antes de o desempenho se degradar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-corrosion-resistance\">3. Resist\u00eancia \u00e0 corros\u00e3o<\/h3>\n\n\n\n<p>Ambos os tipos de pol\u00edmeros resistem \u00e0 ferrugem ou \u00e0 corros\u00e3o e s\u00e3o adequados para aplica\u00e7\u00f5es no exterior e para o contacto com meios corrosivos. No entanto, os termopl\u00e1sticos s\u00e3o mais resistentes \u00e0 corros\u00e3o qu\u00edmica do que os pl\u00e1sticos termoendurec\u00edveis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-durability\">4. Durabilidade<\/h3>\n\n\n\n<p>No fabrico de pl\u00e1sticos de engenharia para autom\u00f3veis ou electrodom\u00e9sticos, a resist\u00eancia ao calor e a durabilidade s\u00e3o cruciais. Geralmente, os materiais termoendurec\u00edveis s\u00e3o mais dur\u00e1veis do que os seus hom\u00f3logos. Estes pol\u00edmeros s\u00e3o normalmente mais leves e t\u00eam uma excelente for\u00e7a, dureza e resist\u00eancia ao impacto. Podem ainda ser refor\u00e7ados com materiais como fibra de vidro e fibra de carbono. Assim, as vantagens estruturais e a estabilidade dimensional dos pl\u00e1sticos termoendurec\u00edveis tornam-nos mais adequados para a durabilidade.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-processing-techniques\">5. T\u00e9cnicas de processamento<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pl\u00e1sticos termoendurec\u00edveis:<\/strong> Processados na sua forma l\u00edquida atrav\u00e9s de m\u00e9todos como a moldagem por transfer\u00eancia de resina (RTM) e a moldagem por inje\u00e7\u00e3o com rea\u00e7\u00e3o (RIM). O processo de cura inclui inibidores, endurecedores, plastificantes ou cargas. A escolha do refor\u00e7o depende do resultado pretendido.<\/li>\n\n\n\n<li><strong>Termopl\u00e1sticos:<\/strong> Podem ser processados atrav\u00e9s de v\u00e1rios m\u00e9todos, incluindo moldagem por inje\u00e7\u00e3o, extrus\u00e3o, forma\u00e7\u00e3o de v\u00e1cuo e termoformagem. Os termopl\u00e1sticos s\u00e3o excelentes isolantes t\u00e9rmicos, o que resulta em tempos de arrefecimento mais longos em compara\u00e7\u00e3o com outros pl\u00e1sticos.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-identification-of-thermoplastics-and-thermosetting-plastics\">Identifica\u00e7\u00e3o de termopl\u00e1sticos e pl\u00e1sticos termoendurec\u00edveis<\/h2>\n\n\n\n<p>Finalmente, vamos identificar estes tipos comuns de pl\u00e1sticos utilizando as tabelas seguintes:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-table-of-plastic-combustion-characteristics\">Tabela de carater\u00edsticas de combust\u00e3o dos pl\u00e1sticos<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Material<\/th><th class=\"has-text-align-center\" data-align=\"center\">Combustibilidade<\/th><th class=\"has-text-align-center\" data-align=\"center\">Gotejamento<\/th><th class=\"has-text-align-center\" data-align=\"center\">Cor da chama<\/th><th class=\"has-text-align-center\" data-align=\"center\">Odor<\/th><th class=\"has-text-align-center\" data-align=\"center\">Velocidade de combust\u00e3o<\/th><th class=\"has-text-align-center\" data-align=\"center\">Outras carater\u00edsticas<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">PE<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Azul com ponta amarela<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo Parrafin<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Deixa marcas quando arranhado pelas unhas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PP<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Azul com ponta amarela<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo diesel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem marcas quando arranhado pelas unhas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">TPX<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Azul<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nenhum<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Transparente como a \u00e1gua<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo estireno<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">HIPS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Estireno e tipo borracha<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">AS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Estireno e amargo<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ABS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amargo tipo borracha<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/pt\/guides\/pmma-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PMMA<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Semelhante ao \u00e1lcool<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem fumo<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/pt\/guides\/pom-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>POM<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Formalde\u00eddo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem fumo<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PET<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo com bordos azuis<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo borracha queimada<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Celuloide<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo com fa\u00edscas<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo \u00e1cido ac\u00e9tico<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PU<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ligeiramente semelhante a uma ma\u00e7\u00e3<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ligeiro fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">SBS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo estireno<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">SEBS<\/td><td class=\"has-text-align-center\" data-align=\"center\">Queimaduras<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo Parrafin<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem carv\u00e3o ou fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PTFE<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem chama<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nenhum<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nenhum<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PVF<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem chama<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00c1cido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nenhum<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">CTFE<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sem chama<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo \u00e1cido ac\u00e9tico<\/td><td class=\"has-text-align-center\" data-align=\"center\">Incombust\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nenhum<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PA<\/td><td class=\"has-text-align-center\" data-align=\"center\">Auto-extingu\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Azul com ponta amarela<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo cabelo queimado<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Bolhas<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PSU<\/td><td class=\"has-text-align-center\" data-align=\"center\">Auto-extingu\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Laranja<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo enxofre<\/td><td class=\"has-text-align-center\" data-align=\"center\">R\u00e1pido<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/pt\/guides\/pc-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PC<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">Auto-extingu\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sim<\/td><td class=\"has-text-align-center\" data-align=\"center\">Laranja-amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo fenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Carv\u00e3o e fumo negro<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PPO<\/td><td class=\"has-text-align-center\" data-align=\"center\">Auto-extingu\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Laranja-amarelo<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo fenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Dif\u00edcil de acender<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PVC<\/td><td class=\"has-text-align-center\" data-align=\"center\">Auto-extingu\u00edvel<\/td><td class=\"has-text-align-center\" data-align=\"center\">N\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">Amarelo com bordos verdes<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tipo \u00e1cido clor\u00eddrico<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Fumo branco<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Quadro de carater\u00edsticas adicionais de combust\u00e3o dos pl\u00e1sticos<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Material<\/th><th>Combustibilidade<\/th><th>Cor da chama<\/th><th>Odor<\/th><th>Outras carater\u00edsticas<\/th><\/tr><\/thead><tbody><tr><td>Melamina<\/td><td>Auto-extingu\u00edvel<\/td><td>Verde claro<\/td><td>Peixes<\/td><td>Expande-se e rebenta<\/td><\/tr><tr><td>Fenol<\/td><td>Auto-extingu\u00edvel<\/td><td>Amarelo<\/td><td>Tipo fenol<\/td><td>Pode continuar a arder<\/td><\/tr><tr><td>Ureia<\/td><td>Auto-extingu\u00edvel<\/td><td>Amarelo com bordos verdes<\/td><td>Formalde\u00eddo<\/td><td>Expande-se e rebenta<\/td><\/tr><tr><td>UP (Fibra de vidro)<\/td><td>Queimaduras<\/td><td>Amarelo com bordos azuis<\/td><td>\u00c1cido com sabor a canela<\/td><td>Carv\u00e3o e fumo negro<\/td><\/tr><tr><td>Silicone<\/td><td>Queimaduras<\/td><td>Amarelo vivo<\/td><td>Nenhum<\/td><td>Continua a arder<\/td><\/tr><tr><td>Ep\u00f3xi<\/td><td>Queimaduras<\/td><td>Amarelo<\/td><td>Pungente tipo amina<\/td><td>Fumo preto<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>Este artigo apresenta as diferen\u00e7as entre os pl\u00e1sticos termopl\u00e1sticos e os pl\u00e1sticos termoendurec\u00edveis em termos de m\u00e9todos de processamento e propriedades.<\/p>","protected":false},"author":5,"featured_media":20166,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[48],"tags":[82],"class_list":["post-20164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-materials"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>The Differences Between Thermoplastics and Thermosetting<\/title>\n<meta name=\"description\" content=\"This article introduces the 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