{"id":5787,"date":"2022-12-14T11:16:48","date_gmt":"2022-12-14T11:16:48","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5787"},"modified":"2022-12-14T11:16:48","modified_gmt":"2022-12-14T11:16:48","slug":"relationship-between-plastic-additives-and-plasticizers","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/relationship-between-plastic-additives-and-plasticizers\/","title":{"rendered":"Qual \u00e9 a rela\u00e7\u00e3o entre os aditivos pl\u00e1sticos e os plastificantes?"},"content":{"rendered":"

Qual \u00e9 a rela\u00e7\u00e3o entre os aditivos pl\u00e1sticos e os plastificantes?<\/strong><\/h1>\n

Os aditivos pl\u00e1sticos, tamb\u00e9m conhecidos como aditivos pl\u00e1sticos, s\u00e3o alguns compostos que devem ser adicionados aos pol\u00edmeros (resinas sint\u00e9ticas) para melhorar suas propriedades de processamento ou para melhorar o desempenho da resina ou do pl\u00e1stico em si.<\/p>\n

Os aditivos pl\u00e1sticos s\u00e3o importantes para melhorar o desempenho da pr\u00f3pria resina, por exemplo, para reduzir a temperatura de moldagem da resina de cloreto de polivinila, de modo que os produtos sejam macios para adicionar plastificantes. Para preparar espuma leve, antivibra\u00e7\u00e3o, de isolamento t\u00e9rmico e ac\u00fastico e adicionar agentes espumantes, alguns pl\u00e1sticos est\u00e3o muito pr\u00f3ximos da temperatura de decomposi\u00e7\u00e3o t\u00e9rmica e da temperatura do processo de moldagem, sem a adi\u00e7\u00e3o de estabilizadores de calor n\u00e3o podem ser formados.<\/p>\n

Portanto, os aditivos pl\u00e1sticos no processo de moldagem de pl\u00e1stico ocupam uma posi\u00e7\u00e3o particularmente importante. No entanto, os aditivos pl\u00e1sticos tradicionais s\u00e3o, em sua maioria, fontes \u00e0 base de petr\u00f3leo. Com o progresso da conscientiza\u00e7\u00e3o das pessoas em rela\u00e7\u00e3o \u00e0 prote\u00e7\u00e3o ambiental e \u00e0 seguran\u00e7a, os aditivos pl\u00e1sticos de base biol\u00f3gica apresentam maior seguran\u00e7a e prote\u00e7\u00e3o ambiental, al\u00e9m de outras caracter\u00edsticas, e os aditivos pl\u00e1sticos de transforma\u00e7\u00e3o ambiental se tornaram a tend\u00eancia.<\/p>\n

Em todos os aditivos pl\u00e1sticos, os plastificantes representam uma propor\u00e7\u00e3o muito grande, sendo que a borracha pl\u00e1stica atual usa uma grande quantidade de aditivos, 90% para resina de PVC.<\/p>\n

A principal fun\u00e7\u00e3o dos plastificantes \u00e9 adicionada aos materiais polim\u00e9ricos para melhorar sua plasticidade, podendo alterar a natureza do pol\u00edmero, aumentando sua plasticidade, flexibilidade, alongamento e outras propriedades, facilitando o processamento.<\/p>\n

De fato, quase todo o processamento de pol\u00edmeros termopl\u00e1sticos usar\u00e1 plastificantes em maior ou menor grau. A ess\u00eancia do processamento de pol\u00edmeros termopl\u00e1sticos \u00e9 aumentar a atividade das mol\u00e9culas de pol\u00edmero por meio do aquecimento, enfraquecendo suas for\u00e7as intermoleculares e, assim, tornando-as pl\u00e1sticas.<\/p>\n

No entanto, para alguns pol\u00edmeros polares com altas for\u00e7as intermoleculares e inst\u00e1veis ao aquecimento, torna-se muito dif\u00edcil moldar apenas com o aquecimento, e as fortes for\u00e7as intermoleculares tornam os produtos finais desses pol\u00edmeros duros, inel\u00e1sticos e flex\u00edveis sem a adi\u00e7\u00e3o de plastificantes ou em quantidades inadequadas.<\/p>\n

Para fabricar produtos de PVC flex\u00edvel, \u00e9 necess\u00e1rio adicionar uma quantidade suficiente de plastificante. \u00c0s vezes, a quantidade adicionada \u00e9 ainda maior que 50% da massa total do produto, por exemplo, produtos de PVC para uso m\u00e9dico, brinquedos com 35% a 40%, produtos de embalagem de alimentos com cerca de 28%, a quantidade adicionada varia.<\/p>\n

O aparecimento de plastificantes reduz a temperatura de transi\u00e7\u00e3o v\u00edtrea do pol\u00edmero, a temperatura de fus\u00e3o e o m\u00f3dulo de elasticidade dos elast\u00f4meros, de modo que as propriedades de tra\u00e7\u00e3o, a flexibilidade e o alongamento do produto sejam melhores.<\/p>\n

O mecanismo de plastifica\u00e7\u00e3o dos plastificantes se d\u00e1 principalmente por meio do efeito de volume e do efeito de prote\u00e7\u00e3o de dois aspectos.<\/p>\n

1. Efeito de volume<\/p>\n

Esse efeito ocorre porque a adi\u00e7\u00e3o de plastificantes n\u00e3o polares aumenta a dist\u00e2ncia entre as mol\u00e9culas de pol\u00edmero, a for\u00e7a molecular entre as mol\u00e9culas diminui, o que reduz a for\u00e7a de van der Waals entre as mol\u00e9culas de resina, reduzindo assim a viscosidade de fus\u00e3o dos pl\u00e1sticos. Esse efeito aumentar\u00e1 com a adi\u00e7\u00e3o de plastificantes, e a estrutura dos plastificantes tamb\u00e9m ter\u00e1 um impacto sobre a efici\u00eancia da plastifica\u00e7\u00e3o.<\/p>\n

2. Efeito de blindagem<\/p>\n

Esse efeito \u00e9 causado por plastificantes polares. O acr\u00e9scimo de plastificante polar aumenta a intera\u00e7\u00e3o entre o plastificante polar e o pol\u00edmero, o que reduz a conex\u00e3o polar entre os pol\u00edmeros e consegue reduzir a viscosidade da fus\u00e3o.<\/p>\n

Plastificantes retardantes de chama da mesma s\u00e9rie<\/strong><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Lcflex\u00ae T-50<\/span><\/a><\/td>\nT-50; ASE<\/td>\nCAS 91082-17-6<\/td>\n<\/tr>\n
Lcflex\u00ae ATBC<\/span><\/a><\/td>\nCitrato de acetil tributil<\/td>\nCAS 77-90-7<\/td>\n<\/tr>\n
Lcflex\u00ae TBC<\/span><\/a><\/td>\nCitrato de tributil<\/td>\nCAS 77-94-1<\/td>\n<\/tr>\n
Lcflex\u00ae TCPP<\/a><\/span><\/td>\nTCPP retardante de chamas<\/td>\nCAS 13674-84-5<\/td>\n<\/tr>\n
Lcflex\u00ae DOTP<\/span><\/a><\/td>\nTereftalato de dioctila<\/td>\nCAS 6422-86-2<\/td>\n<\/tr>\n
Lcflex\u00ae DEP<\/a><\/span><\/td>\nFtalato de dietila<\/td>\nCAS 84-66-2<\/td>\n<\/tr>\n
Lcflex\u00ae TEC<\/a><\/span><\/td>\ncitrato de trietila<\/td>\nCAS 77-93-0<\/td>\n<\/tr>\n
Lcflex\u00ae DOA<\/a><\/span><\/td>\nAdipato de dioctila<\/td>\nCAS 123-79-5<\/td>\n<\/tr>\n
Lcflex\u00ae DOS<\/a><\/span><\/td>\n\u00c9STER DI-N-OCTIL DO \u00c1CIDO SEB\u00c1CICO<\/td>\nCAS 2432-87-3<\/td>\n<\/tr>\n
Lcflex\u00ae DINP<\/span><\/a><\/td>\nFtalato de diisononila<\/td>\nCAS 28553-12-0\/685 15-48-0<\/td>\n<\/tr>\n
Lcflex\u00ae TMP<\/a><\/span><\/td>\nTrimetilolpropano<\/td>\nCAS 77-99-6<\/td>\n<\/tr>\n
Lcflex\u00ae TEP<\/a><\/span><\/td>\nFosfato de trietila<\/td>\nCAS 78-40-0<\/td>\n<\/tr>\n
Lcflex\u00ae TOTM<\/span><\/a><\/td>\nTrioctil trimelato<\/td>\nCAS 3319-31-1<\/td>\n<\/tr>\n
Lcflex\u00ae BBP<\/span><\/a><\/td>\nPlastificantes de base biol\u00f3gica, Plastificante de alta efici\u00eancia<\/td>\n<\/td>\n<\/tr>\n
Lcflex\u00ae TMP<\/span><\/a><\/td>\nTrimetilol propano<\/td>\nCAS 77-99-6<\/td>\n<\/tr>\n
Lcflare\u00ae TCEP<\/span><\/a><\/td>\nFosfato de tris(2-cloroetil)<\/td>\nCAS 115-96-8<\/td>\n<\/tr>\n
Lcflare\u00ae BDP<\/a><\/span><\/td>\nBisfenol-A bis(difenil fosfato)<\/td>\nCAS 5945-33-5<\/td>\n<\/tr>\n
Lcflare\u00ae TPP<\/a><\/span><\/td>\nFosfato de trifenila<\/td>\nCAS 115-86-6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h2>\n

Entre em contato conosco agora!<\/b><\/strong><\/h2>\n

Se precisar de COA, MSDS ou TDS, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato em at\u00e9 24 horas.<\/b><\/strong> Voc\u00ea tamb\u00e9m pode me enviar um e-mail info@longchangchemical.com<\/span><\/a> durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/h4>","protected":false},"excerpt":{"rendered":"

Qual \u00e9 a rela\u00e7\u00e3o entre aditivos pl\u00e1sticos e plastificantes? Os aditivos para pl\u00e1sticos, tamb\u00e9m conhecidos como aditivos pl\u00e1sticos, s\u00e3o alguns compostos que devem ser adicionados aos pol\u00edmeros (resinas sint\u00e9ticas) para melhorar suas propriedades de processamento ou para melhorar o desempenho da resina ou do pl\u00e1stico em si. Os aditivos pl\u00e1sticos s\u00e3o importantes para melhorar o desempenho da [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5787","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"\nWhat is the relationship between plastic additives and plasticizers? - 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\/relationship-between-plastic-additives-and-plasticizers\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the relationship between plastic additives and plasticizers? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"What is the relationship between plastic additives and plasticizers? 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