{"id":6207,"date":"2023-08-21T04:17:44","date_gmt":"2023-08-21T04:17:44","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6207"},"modified":"2023-08-21T05:59:45","modified_gmt":"2023-08-21T05:59:45","slug":"do-you-know-totm-plasticizer","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/do-you-know-totm-plasticizer\/","title":{"rendered":"Voc\u00ea conhece o plastificante TOTM?"},"content":{"rendered":"

Voc\u00ea conhece o plastificante TOTM?<\/strong><\/h1>\n

Plastificantes TOTM<\/a> Os plastificantes TOTM s\u00e3o usados principalmente na produ\u00e7\u00e3o de materiais de fios e cabos resistentes ao calor de grau 105 graus Celsius, bem como outras placas, chapas, gaxetas e outros produtos que exigem resist\u00eancia ao calor e durabilidade. Os plastificantes TOTM s\u00e3o adequados para cloreto de polivinila, copol\u00edmeros de cloreto de vinila, nitrato de celulose, butirato de etila de celulose, polimetilmetacrilato etc. Os plastificantes TOTM tamb\u00e9m podem ser usados para compostos de fios e cabos resistentes ao calor, placas, folhas, gaxetas e outros produtos resistentes ao calor e dur\u00e1veis.<\/p>\n

O plastificante TOTM \u00e9 um plastificante principal resistente ao calor e dur\u00e1vel, com vantagens tanto para o plastificante de poli\u00e9ster quanto para o plastificante de mon\u00f4mero, efici\u00eancia de plastifica\u00e7\u00e3o e desempenho de processamento e plastificantes de ftalato semelhantes; compatibilidade, desempenho de plastifica\u00e7\u00e3o, desempenho em baixas temperaturas do que o plastificante de poli\u00e9ster, excelentes propriedades el\u00e9tricas, mas resist\u00eancia a \u00f3leo um pouco pior.<\/p>\n

 <\/p>\n

Como um tipo de plastificante, ele tem a generalidade e o mecanismo de fun\u00e7\u00e3o do plastificante, e o mecanismo de fun\u00e7\u00e3o do plastificante \u00e9 que as mol\u00e9culas do plastificante s\u00e3o dispersas na cadeia molecular do pol\u00edmero. Devido \u00e0s diferentes for\u00e7as entre as mol\u00e9culas do plastificante, entre as mol\u00e9culas do plastificante e as mol\u00e9culas do pol\u00edmero e entre as macromol\u00e9culas do pol\u00edmero, a adi\u00e7\u00e3o de plastificantes pode, em geral, alterar as for\u00e7as entre as cadeias moleculares do pol\u00edmero. Mais especificamente, ele enfraquece a for\u00e7a entre as cadeias moleculares do pol\u00edmero, de modo que a mobilidade entre as cadeias moleculares do pol\u00edmero tamb\u00e9m aumenta e, ao mesmo tempo, outras mol\u00e9culas com diferentes tipos estruturais s\u00e3o introduzidas entre as mol\u00e9culas do pol\u00edmero, o que reduz a regularidade das mol\u00e9culas e, portanto, reduz a cristalinidade das cadeias moleculares do pol\u00edmero. Dessa forma, o objetivo de aumentar a velocidade \u00e9 alcan\u00e7ado.<\/p>\n

Quando um plastificante \u00e9 adicionado a um pol\u00edmero, as for\u00e7as de intera\u00e7\u00e3o das mol\u00e9culas do plastificante entre si, das mol\u00e9culas do pol\u00edmero entre si e das mol\u00e9culas do plastificante com as mol\u00e9culas do pol\u00edmero s\u00e3o importantes. Geralmente, as for\u00e7as de intera\u00e7\u00e3o entre as mol\u00e9culas do plastificante e as macromol\u00e9culas do pol\u00edmero devem ser maiores do que as for\u00e7as entre as macromol\u00e9culas do pol\u00edmero. A menos que todas essas intera\u00e7\u00f5es (plastificante com plastificante, plastificante com pol\u00edmero e pol\u00edmero com pol\u00edmero) sejam da mesma magnitude, n\u00e3o poder\u00e1 haver plastifica\u00e7\u00e3o ou contraplastifica\u00e7\u00e3o.<\/p>\n

No caso de produtos m\u00e9dicos de PVC, o TOTM pode se tornar o plastificante preferido para substituir o DEHP como um dispositivo m\u00e9dico de PVC devido \u00e0 sua boa propriedade de plastifica\u00e7\u00e3o, resist\u00eancia \u00e0 migra\u00e7\u00e3o, resist\u00eancia a altas temperaturas e baixa toxicidade. Embora n\u00e3o haja muitas informa\u00e7\u00f5es sobre os efeitos do TOTM no corpo humano quando usado em dispositivos m\u00e9dicos, experimentos com animais mostraram que o TOTM se acumula nos tecidos durante o metabolismo.<\/p>\n

Como escolher o plastificante de PVC?<\/strong><\/h2>\n

O plastificante de PVC \u00e9 um tipo de pol\u00edmero polar forte, que s\u00f3 apresenta plasticidade quando aquecido a uma determinada temperatura. De fato, o plastificante de PVC \u00e9 muito comum em nossa vida, ent\u00e3o como escolher o plastificante de PVC?<\/p>\n

Primeiro, a compatibilidade do plastificante e da resina de PVC<\/p>\n

A compatibilidade dos dois, a boa compatibilidade pode formar um sistema de mistura homog\u00eaneo, no plastificante de PVC, na estabilidade de longo prazo dos produtos, para desempenhar sua fun\u00e7\u00e3o. De modo geral, quanto mais semelhante a polaridade, os plastificantes se dissolvem mais facilmente, \"transpira\u00e7\u00e3o\" ou \"spray frost\" e outros fen\u00f4menos. Na sele\u00e7\u00e3o de plastificantes de PVC, pode-se optar por usar o agente de acoplamento ou o processamento de surfactantes, a fim de desenvolver plenamente sua fun\u00e7\u00e3o.<\/p>\n

Segundo, a adaptabilidade das condi\u00e7\u00f5es de processamento<\/p>\n

Na escolha dos plastificantes de PVC, \u00e9 preciso levar em conta que a resina no processamento de temperaturas mais altas se decompor\u00e1 e se o equipamento \u00e9 corrosivo.<\/p>\n

Plastificante de PVC Terceiro, o papel do confronto de fases<\/p>\n

A exist\u00eancia simult\u00e2nea de dois plastificantes de PVC em um sistema de resina produzir\u00e1: efeito sin\u00e9rgico, um ao outro para aumentar o efeito funcional que pode ser desempenhado, do que um plastificante de PVC separado para desempenhar o efeito de grande porte. Por\u00e9m, quando os dois plastificantes de PVC produzem um \"efeito antag\u00f4nico\", a fun\u00e7\u00e3o dos dois plastificantes de PVC \u00e9 enfraquecida, ou at\u00e9 mesmo n\u00e3o funciona. Como o negro de fumo e a amina ou os antioxidantes fen\u00f3licos produzir\u00e3o um efeito antag\u00f4nico, \u00e9 preciso prestar aten\u00e7\u00e3o ao uso.<\/p>\n

Quarto, durabilidade<\/p>\n

A perda de plastificante de PVC dos feixes ocorre principalmente por meio de tr\u00eas vias: volatiliza\u00e7\u00e3o, extra\u00e7\u00e3o e migra\u00e7\u00e3o, principalmente com o peso molecular do tamanho do plastificante de PVC, a solubilidade no meio e a solubilidade na resina.<\/p>\n

V. Restri\u00e7\u00f5es aos plastificantes de PVC<\/p>\n

Diferentes usos de produtos no plastificante de PVC - odor, toxicidade, propriedades el\u00e9tricas, de intemperismo e t\u00e9rmicas - t\u00eam certos requisitos.<\/p>","protected":false},"excerpt":{"rendered":"

Voc\u00ea conhece o plastificante TOTM? Os plastificantes TOTM s\u00e3o usados principalmente na produ\u00e7\u00e3o de materiais de fios e cabos resistentes ao calor a 105 graus Celsius, bem como outras placas, folhas, juntas e outros produtos que exigem resist\u00eancia ao calor e durabilidade. Os plastificantes TOTM s\u00e3o adequados para cloreto de polivinila, copol\u00edmeros de cloreto de vinila, nitrato de celulose, butirato de etila de celulose, polimetil [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[148],"tags":[],"class_list":["post-6207","post","type-post","status-publish","format-standard","hentry","category-plasticizer"],"yoast_head":"\nDo you know TOTM plasticizer? - Longchang Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/do-you-know-totm-plasticizer\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Do you know TOTM plasticizer? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"Do you know TOTM plasticizer? 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