{"id":4933,"date":"2021-12-24T05:52:51","date_gmt":"2021-12-24T05:52:51","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4933"},"modified":"2026-04-28T10:41:54","modified_gmt":"2026-04-28T10:41:54","slug":"the-composition-of-super-glue-502-ethyl-cyanoacrylate","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/the-composition-of-super-glue-502-ethyl-cyanoacrylate\/","title":{"rendered":"A composi\u00e7\u00e3o da supercola 502-ethyl cyanoacrylate"},"content":{"rendered":"<h1><strong>A composi\u00e7\u00e3o da supercola 502-ethyl cyanoacrylate<\/strong><\/h1>\n\n<!-- lc-qa-start -->\n<p><strong>Resposta r\u00e1pida:<\/strong> UV monomers and oligomers are usually chosen by viscosity, adhesion, flexibility, shrinkage, and cure speed as a package. The most reliable formulas come from balancing those properties rather than maximizing only one.<\/p>\n<!-- lc-qa-end -->\n\n\n\n<p>A super cola \u00e9 uma mercadoria comum na vida cotidiana e tem uma ampla gama de usos. No subconsciente, a cola 502 parece ter a super habilidade de colar qualquer coisa instantaneamente, afinal, o nome em ingl\u00eas da super cola, \"super glue\", revela um \"rei do f\u00f4lego\". Quando \u00e9ramos jovens, todos n\u00f3s tivemos a terr\u00edvel experi\u00eancia de ficarmos presos com a cola 502 inadvertidamente. N\u00e3o podemos deixar de nos perguntar qual \u00e9 exatamente a composi\u00e7\u00e3o da cola 502 e por que ela tem a capacidade de supercolagem? Existe uma maneira de remover rapidamente a ades\u00e3o da cola 502? ?<\/p>\r\n\r\n\r\n\r\n<p>De uma descoberta inesperada<\/p>\r\n\r\n\r\n\r\n<p>A Eastman Kodak (Eastman Kodak) \u00e9 uma empresa de equipamentos fotogr\u00e1ficos de renome mundial. O interessante \u00e9 que a supercola nasceu aqui por acidente. Em 1942, o Dr. Harry Coover, que trabalhava para a Kodak, tentou encontrar um pl\u00e1stico \u00f3ptico que pudesse ser usado em lentes. Embora os cianoacrilatos sintetizados funcionassem bem, eles eram extremamente viscosos. Forte, o Dr. Coover relutantemente desistiu e continuou a explorar. Quando chegou a \u00e9poca de 1951, o Dr. Kuffer come\u00e7ou a pesquisar pol\u00edmeros de acrilato resistentes ao calor para serem usados em coberturas de avi\u00f5es a jato. Um dia, um aluno teve que quebrar o recipiente para retirar o produto ap\u00f3s sintetizar o cianoacrilato de etila. Esse composto \u00e9 muito viscoso, mas s\u00f3 adere a outros objetos quando entra em contato com eles.<\/p>\r\n\r\n\r\n\r\n<p>Felizmente, o Dr. Kuffer n\u00e3o ignorou essa subst\u00e2ncia t\u00e3o facilmente como fez h\u00e1 alguns anos. Ele percebeu que esse pode ser um adesivo sem precedentes com grandes perspectivas de aplica\u00e7\u00e3o e valor comercial. Em 1958, esse adesivo foi introduzido no mercado pela Kodak com o nome comercial Eastman 910 e, posteriormente, foi renomeado como a conhecida Super Glue. Com esse produto, o pr\u00f3prio Dr. Cuffer recebeu a Medalha Nacional de Inova\u00e7\u00e3o em Ci\u00eancia e Tecnologia em 2010 (National Medal for Innovation). Medalha de Tecnologia e Inova\u00e7\u00e3o).<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Como funciona a supercola?<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>O cianoacrilato mencionado acima \u00e9, na verdade, um termo geral para uma classe de compostos. Os ingredientes de diferentes supercolas s\u00e3o, na verdade, diferentes. Por exemplo, a cola para feridas adesivas m\u00e9dicas cont\u00e9m octyl cyanoacrylate, que atualmente \u00e9 a composi\u00e7\u00e3o da maioria das supercolas. \u00c9 o etil cianoacrilato (ECA), e uma pequena parte \u00e9 um derivado de \u00e9ster met\u00edlico. Do ponto de vista da qu\u00edmica sint\u00e9tica, esse tipo de composto \u00e9 muito f\u00e1cil de preparar. Usando a rea\u00e7\u00e3o cl\u00e1ssica de Knovenagel, a produ\u00e7\u00e3o industrial em larga escala pode ser facilmente alcan\u00e7ada. Entretanto, a magia dessa mol\u00e9cula descomplicada n\u00e3o est\u00e1 apenas na simplicidade da s\u00edntese, mas tamb\u00e9m em sua forte ades\u00e3o.<\/p>\r\n\r\n\r\n\r\n<p>Muitas pessoas devem ter se perguntado por que as supercolas podem ser armazenadas de forma est\u00e1vel no recipiente em que s\u00e3o armazenadas, j\u00e1 que s\u00e3o extremamente viscosas. O motivo \u00e9 que, se a supercola quiser ter um efeito de liga\u00e7\u00e3o, ela deve contar com um determinado \"iniciador\", que na verdade \u00e9 um tra\u00e7o impercept\u00edvel de mol\u00e9culas de \u00e1gua no ar. O componente b\u00e1sico da supercola \u00e9 o mon\u00f4mero de cianoacrilato. Quando entra em contato com o vapor de \u00e1gua, ele inicia a polimeriza\u00e7\u00e3o ani\u00f4nica e, por fim, forma um pol\u00edmero de alta resist\u00eancia. Como o processo de polimeriza\u00e7\u00e3o libera calor, os ingredientes e solventes da cola aceleram a evapora\u00e7\u00e3o e, por isso, \u00e9 comum sentirmos odores desagrad\u00e1veis durante o uso. Para obter um melhor efeito de ades\u00e3o na vida, geralmente pensamos que quanto mais cola, mais forte ser\u00e1 a ades\u00e3o. Do ponto de vista do mecanismo da cola, isso n\u00e3o \u00e9 de fato razo\u00e1vel. Uma grande quantidade de cola far\u00e1 com que a parte de ades\u00e3o fique mais espessa, o que afetar\u00e1 sua ades\u00e3o. A combina\u00e7\u00e3o de vapor de \u00e1gua tamb\u00e9m afetar\u00e1 a resist\u00eancia do pol\u00edmero final.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20200514\/20200514120416_63802.jpg\" alt=\"\" \/>\r\n<figcaption>S\u00edntese e mecanismo do cianoacrilato<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Outros usos<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Al\u00e9m da aplica\u00e7\u00e3o no campo da supercola, o cianoacrilato aprimorado tamb\u00e9m tem aplica\u00e7\u00f5es importantes na \u00e1rea m\u00e9dica. Durante a Guerra do Vietn\u00e3, os m\u00e9dicos militares dos EUA usaram supercola para costurar ferimentos de soldados feridos. Entretanto, os cianoacrilatos usados na \u00e9poca n\u00e3o atendiam \u00e0s condi\u00e7\u00f5es m\u00e9dicas. Ap\u00f3s o uso, eles geralmente causavam sensibilidade na pele. Al\u00e9m disso, esses carboxilatos de cadeia curta eram mais graves. \u00c9 mais f\u00e1cil se desagregar, e os mon\u00f4meros fragmentados n\u00e3o favorecem a cicatriza\u00e7\u00e3o de feridas e, \u00e0s vezes, causam infec\u00e7\u00e3o. Felizmente, em 1998, foi desenvolvido o octyl cyanoacrylate. Os \u00e9steres de \u00e1cido carbox\u00edlico de cadeia longa n\u00e3o s\u00e3o f\u00e1ceis de despolimerizar e t\u00eam melhor afinidade com os tecidos humanos. Posteriormente, essa cola recebeu o nome de Dermabond e se tornou uma cola especial para sutura de ferimentos na pele humana.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20200514\/20200514120450_79164.jpg\" alt=\"\" \/>\r\n<figcaption>Octyl Cyanoacrylate m\u00e9dico<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<p>Outro uso do cianoacrilato \u00e9 na investiga\u00e7\u00e3o criminal. A pol\u00edcia pode usar a fuma\u00e7a de supercola para revelar poss\u00edveis impress\u00f5es digitais. O processo geral \u00e9 o seguinte: Primeiro, coloque o objeto que cont\u00e9m a impress\u00e3o digital em um recipiente aquecido e herm\u00e9tico e coloque a supercola no recipiente. O cianoacrilato \u00e9 aquecido para evaporar e, ao mesmo tempo, circula e se dispersa no recipiente com a ajuda de um ventilador. As subst\u00e2ncias residuais nas impress\u00f5es digitais, como amino\u00e1cidos, glicose e umidade, ser\u00e3o misturadas ao g\u00e1s. A cola modificada passa por uma rea\u00e7\u00e3o semelhante \u00e0 polimeriza\u00e7\u00e3o gradual dos mon\u00f4meros durante a colagem, e as impress\u00f5es digitais aparecer\u00e3o imediatamente. Diz-se que esse m\u00e9todo foi usado em investiga\u00e7\u00f5es criminais no Jap\u00e3o j\u00e1 em 1978.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20200514\/20200514120507_17772.jpg\" alt=\"\" \/>\r\n<figcaption>Impress\u00f5es digitais em armas ap\u00f3s serem fumadas com super cola<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.biochemsafebuy.com\/static\/kindeditor-4.1.10\/attached\/image\/20200523\/20200523034104_36724.gif\" alt=\"\" \/>\r\n<figcaption>Tela de impress\u00e3o digital (duas gotas s\u00e3o \u00e1gua e super cola)<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n<p>Tela de impress\u00e3o digital (duas gotas s\u00e3o \u00e1gua e super cola)<\/p>\r\n\r\n\r\n\r\n<p>Observa\u00e7\u00f5es finais<\/p>\r\n\r\n\r\n\r\n<p>Os adesivos da s\u00e9rie cianoacrilato t\u00eam as caracter\u00edsticas de composi\u00e7\u00e3o simples, cura em temperatura ambiente, velocidade de colagem r\u00e1pida e alta resist\u00eancia. Eles t\u00eam forte ades\u00e3o a metais, pl\u00e1sticos, borracha, cer\u00e2mica e at\u00e9 mesmo a tecidos humanos. Nos \u00faltimos anos, com o desenvolvimento da tecnologia de colagem, a pesquisa e a aplica\u00e7\u00e3o de adesivos m\u00e9dicos tamb\u00e9m tiveram um grande progresso. Ao mesmo tempo, devido \u00e0 melhoria cont\u00ednua dos padr\u00f5es de vida das pessoas, os consumidores tamb\u00e9m apresentaram requisitos novos e mais elevados para os adesivos. No futuro, os adesivos com baixo odor, pequena superf\u00edcie de colagem e adesivos ecologicamente corretos ser\u00e3o novas dire\u00e7\u00f5es de desenvolvimento. Por fim, voltando \u00e0 pergunta do in\u00edcio do artigo, como remover rapidamente a ades\u00e3o da cola 502? Como a acetona pura n\u00e3o \u00e9 comumente regulamentada na vida, muitas lavagens de \u00e1gua Nail cont\u00eam acetona, que \u00e9 uma boa op\u00e7\u00e3o para remover e curar a 502.<\/p>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Como remover o adesivo de cianoacrilato da pele?<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Se as p\u00e1lpebras ou os l\u00e1bios estiverem presos, consulte um m\u00e9dico. Se voc\u00ea tiver amarrado os dedos com for\u00e7a, mergulhe-os em \u00e1gua morna com sab\u00e3o e enrole-os com cuidado (como se estivesse enrolando um l\u00e1pis entre os dedos). N\u00e3o os separe, pois \u00e9 prov\u00e1vel que voc\u00ea descasque a pele de um dedo.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Como remover o adesivo de cianoacrilato do pl\u00e1stico?<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Se voc\u00ea puder passar algum tempo com \u00e1gua, essa pode ser sua melhor op\u00e7\u00e3o. Tanto a acetona quanto o CA Solvent 100 podem aplicar press\u00e3o e turvar uma variedade de pl\u00e1sticos. \u00c9 melhor testar o solvente no pl\u00e1stico antes de us\u00e1-lo.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Como remover o adesivo de cianoacrilato do vidro?<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>A boa not\u00edcia aqui \u00e9 que o adesivo de cianoacrilato n\u00e3o adere muito bem ao vidro, portanto, geralmente \u00e9 poss\u00edvel rasp\u00e1-lo com uma l\u00e2mina de barbear. Se a colagem parecer forte, voc\u00ea pode usar \u00e1gua, acetona ou CA Solvent 100, ou simplesmente esperar alguns dias (a colagem se degradar\u00e1) e tentar novamente.<\/p>\r\n\r\n\r\n\r\n<h3 class=\"wp-block-heading\"><strong>Como remover o adesivo de cianoacrilato do metal?<\/strong><\/h3>\r\n\r\n\r\n\r\n<p>Ao contr\u00e1rio do vidro, o cianoacrilato tem uma forte liga\u00e7\u00e3o com o metal. A boa not\u00edcia aqui \u00e9 que os metais podem suportar altas temperaturas, portanto, pode-se usar \u00e1gua fervente ou acetona ou CA Solvent 100 em temperatura ambiente.<\/p>\r\n\n\n<!-- lc-commercial-start -->\n<h2>Uma vis\u00e3o pr\u00e1tica de fornecimento e formula\u00e7\u00e3o de mon\u00f4meros e olig\u00f4meros UV<\/h2>\n<p>As formula\u00e7\u00f5es de UV de maior sucesso s\u00e3o constru\u00eddas escolhendo primeiro a base e, em seguida, ajustando o pacote de mon\u00f4meros reativos em torno do substrato, m\u00e9todo de cura e estresse de uso final. Isso geralmente produz um resultado mais est\u00e1vel do que escolher materiais apenas pela viscosidade ou pre\u00e7o.<\/p>\n<ul>\n<li><strong>Comece da propriedade final alvo:<\/strong> dureza, flexibilidade, ades\u00e3o e retra\u00e7\u00e3o raramente apontam para o mesmo pacote de mat\u00e9ria-prima.<\/li>\n<li><strong>Tela do pacote reativo como um todo:<\/strong> as escolhas de olig\u00f4mero, mon\u00f4mero e fotoiniciador interagem fortemente em sistemas UV.<\/li>\n<li><strong>Use a viscosidade como ferramenta, n\u00e3o como a \u00fanica regra de decis\u00e3o:<\/strong> o material mais f\u00e1cil de processar nem sempre \u00e9 o que tem melhor desempenho ap\u00f3s a cura.<\/li>\n<li><strong>Verifique o substrato real:<\/strong> pl\u00e1stico, metal, filme de etiqueta, sistemas de gel e revestimentos podem recompensar equil\u00edbrios de polaridade e densidade de cura muito diferentes.<\/li>\n<\/ul>\n<h3>Refer\u00eancias de produtos recomendadas<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/hpma-monomer-cas-27813-02-1\/\">CHLUMICRYL HPMA<\/a>:<\/strong> \u00datil quando mais polaridade e suporte de ades\u00e3o s\u00e3o necess\u00e1rios no pacote reativo.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/iboa-monomer-cas-5888-33-5\/\">CHLUMICRYL IBOA<\/a>:<\/strong> Um mon\u00f4mero de baixa viscosidade forte como refer\u00eancia quando a dureza e um bom fluxo s\u00e3o importantes.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/tmpta-cas-15625-89-5\/\">CHLUMICRYL TMPTA<\/a>:<\/strong> Um mon\u00f4mero reativo padr\u00e3o de refer\u00eancia quando \u00e9 necess\u00e1ria uma densidade de reticula\u00e7\u00e3o maior.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/eo3-tmpta-cas-28961-43-5\/\">CHLUMICRYL EO3-TMPTA<\/a>:<\/strong> \u00datil quando a viscosidade e o comportamento de cura precisam ser ajustados em torno do pacote base.<\/li>\n<\/ul>\n<h3>FAQ para compradores e formuladores<\/h3>\n<p><strong>Um mon\u00f4mero ou resina UV pode resolver todos os problemas de formula\u00e7\u00e3o?<\/strong><br \/>Geralmente n\u00e3o. F\u00f3rmulas comercialmente fortes dependem de como v\u00e1rios componentes trabalham juntos para equilibrar cura, ades\u00e3o, fluidez e durabilidade.<\/p>\n<p><strong>Por que os mon\u00f4meros devem ser rastreados juntamente com os olig\u00f4meros?<\/strong><br \/>Porque mon\u00f4meros podem alterar viscosidade, taxa de cura, retra\u00e7\u00e3o e comportamento do substrato o suficiente para modificar a classifica\u00e7\u00e3o final da mesma resina base.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Super glue is a common commodity in daily life and has a wide range of uses. In the subconscious, 502 glue seems to have the super ability to glue anything<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-4933","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The composition of super glue 502-ethyl cyanoacrylate - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Super glue is a common commodity in daily life and has a wide range of uses. 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