{"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\/fr\/do-you-know-totm-plasticizer\/","title":{"rendered":"Connaissez-vous le plastifiant TOTM ?"},"content":{"rendered":"

Connaissez-vous le plastifiant TOTM ?<\/strong><\/h1>\n

Plastifiants TOTM<\/a> sont principalement utilis\u00e9s dans la production de fils et de c\u00e2bles r\u00e9sistants \u00e0 la chaleur \u00e0 105 degr\u00e9s Celsius, ainsi que d'autres plaques, feuilles, joints et autres produits n\u00e9cessitant une r\u00e9sistance \u00e0 la chaleur et une durabilit\u00e9. Les plastifiants TOTM conviennent au chlorure de polyvinyle, aux copolym\u00e8res de chlorure de vinyle, au nitrate de cellulose, au butyrate d'\u00e9thyle de cellulose, au polym\u00e9thacrylate de m\u00e9thyle, etc. Les plastifiants TOTM peuvent \u00e9galement \u00eatre utilis\u00e9s pour les compos\u00e9s de fils et de c\u00e2bles r\u00e9sistants \u00e0 la chaleur, les plaques, les feuilles, les joints et d'autres produits r\u00e9sistants \u00e0 la chaleur et durables.<\/p>\n

Le plastifiant TOTM est un plastifiant principal r\u00e9sistant \u00e0 la chaleur et durable, qui pr\u00e9sente les avantages d'un plastifiant polyester et d'un plastifiant monom\u00e8re, une efficacit\u00e9 de plastification et des performances de traitement similaires \u00e0 celles des plastifiants phtalates ; compatibilit\u00e9, performance de plastification, performances \u00e0 basse temp\u00e9rature sup\u00e9rieures \u00e0 celles du plastifiant polyester, excellentes propri\u00e9t\u00e9s \u00e9lectriques, mais une r\u00e9sistance \u00e0 l'huile l\u00e9g\u00e8rement inf\u00e9rieure.<\/p>\n

 <\/p>\n

En tant que type de plastifiant, il poss\u00e8de la g\u00e9n\u00e9ralit\u00e9 et le m\u00e9canisme de fonctionnement d'un plastifiant, et le m\u00e9canisme de fonctionnement d'un plastifiant est que les mol\u00e9cules de plastifiant sont dispers\u00e9es dans la cha\u00eene mol\u00e9culaire du polym\u00e8re. En raison des diff\u00e9rentes forces entre les mol\u00e9cules de plastifiant, entre les mol\u00e9cules de plastifiant et les mol\u00e9cules de polym\u00e8re et entre les macromol\u00e9cules de polym\u00e8re, l'ajout de plastifiants peut g\u00e9n\u00e9ralement modifier les forces entre les cha\u00eenes mol\u00e9culaires de polym\u00e8re. Plus pr\u00e9cis\u00e9ment, il affaiblit la force entre les cha\u00eenes mol\u00e9culaires de polym\u00e8re, de sorte que la mobilit\u00e9 entre les cha\u00eenes mol\u00e9culaires de polym\u00e8re est \u00e9galement accrue, et en m\u00eame temps, d'autres mol\u00e9cules de types structurels diff\u00e9rents sont introduites entre les mol\u00e9cules de polym\u00e8re, ce qui r\u00e9duit la r\u00e9gularit\u00e9 des mol\u00e9cules, et donc la cristallinit\u00e9 des cha\u00eenes mol\u00e9culaires de polym\u00e8re. De cette mani\u00e8re, l'objectif d'augmentation de la vitesse est atteint.<\/p>\n

Lorsqu'un plastifiant est ajout\u00e9 \u00e0 un polym\u00e8re, les forces d'interaction des mol\u00e9cules de plastifiant entre elles, des mol\u00e9cules de polym\u00e8re entre elles et des mol\u00e9cules de plastifiant avec les mol\u00e9cules de polym\u00e8re sont importantes. En g\u00e9n\u00e9ral, les forces d'interaction entre les mol\u00e9cules de plastifiant et les macromol\u00e9cules de polym\u00e8re doivent \u00eatre sup\u00e9rieures aux forces entre les macromol\u00e9cules de polym\u00e8re. Si toutes ces interactions (plastifiant \u00e0 plastifiant, plastifiant \u00e0 polym\u00e8re et polym\u00e8re \u00e0 polym\u00e8re) ne sont pas de m\u00eame ampleur, il ne peut y avoir de plastification ou de contre-plastification.<\/p>\n

Dans le cas des produits m\u00e9dicaux en PVC, le TOTM pourrait devenir un plastifiant de choix pour remplacer le DEHP dans les dispositifs m\u00e9dicaux en PVC en raison de ses bonnes propri\u00e9t\u00e9s de plastification, de sa r\u00e9sistance \u00e0 la migration, de sa r\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es et de sa faible toxicit\u00e9. Bien qu'il n'y ait pas beaucoup d'informations sur les effets du TOTM sur le corps humain lorsqu'il est utilis\u00e9 dans des dispositifs m\u00e9dicaux, des exp\u00e9riences sur des animaux ont montr\u00e9 que le TOTM s'accumule dans les tissus au cours du m\u00e9tabolisme.<\/p>\n

Comment choisir un plastifiant pour PVC ?<\/strong><\/h2>\n

Le plastifiant PVC est une sorte de polym\u00e8re polaire fort, qui ne devient plastique que lorsqu'il est chauff\u00e9 \u00e0 une certaine temp\u00e9rature. En fait, le plastifiant PVC est tr\u00e8s courant dans notre vie, alors comment choisir le plastifiant PVC ?<\/p>\n

Premi\u00e8rement, la compatibilit\u00e9 du plastifiant et de la r\u00e9sine de PVC<\/p>\n

La compatibilit\u00e9 des deux, une bonne compatibilit\u00e9 peut former un syst\u00e8me de m\u00e9lange homog\u00e8ne, dans le plastifiant PVC dans la stabilit\u00e9 \u00e0 long terme des produits, pour jouer sa fonction. En r\u00e8gle g\u00e9n\u00e9rale, plus la polarit\u00e9 est similaire, plus les plastifiants se dissolvent les uns les autres, \"transpiration\" ou \"gel de pulv\u00e9risation\" et autres ph\u00e9nom\u00e8nes. Lors de la s\u00e9lection des plastifiants pour PVC, on peut choisir d'utiliser un agent de couplage ou un traitement surfactant, afin de d\u00e9velopper pleinement sa fonction.<\/p>\n

Deuxi\u00e8mement, l'adaptabilit\u00e9 des conditions de traitement<\/p>\n

Dans le choix des plastifiants pour PVC, il faut tenir compte du fait que la r\u00e9sine se d\u00e9composera lors du traitement \u00e0 des temp\u00e9ratures plus \u00e9lev\u00e9es et que l'\u00e9quipement est corrosif.<\/p>\n

Plastifiant pour PVC Troisi\u00e8mement, le r\u00f4le de la confrontation des phases<\/p>\n

L'existence simultan\u00e9e de deux plastifiants PVC dans un syst\u00e8me de r\u00e9sine produira : un effet synergique, l'un l'autre pour augmenter l'effet fonctionnel peut \u00eatre jou\u00e9, qu'un plastifiant PVC s\u00e9par\u00e9 pour jouer l'effet de grande taille. Mais lorsque les deux plastifiants PVC produisent un \"effet antagoniste\", la fonction des deux plastifiants PVC sera affaiblie, voire inop\u00e9rante. Comme le noir de carbone et l'amine ou les antioxydants ph\u00e9noliques produiront un effet antagoniste, il faut faire attention \u00e0 l'utilisation.<\/p>\n

Quatri\u00e8mement, la durabilit\u00e9<\/p>\n

La perte de plastifiant PVC des faisceaux se fait principalement par trois voies, la volatilisation, l'extraction et la migration, principalement en fonction du poids mol\u00e9culaire du plastifiant PVC, de sa taille, de sa solubilit\u00e9 dans le milieu et de sa solubilit\u00e9 dans la r\u00e9sine.<\/p>\n

V. Contraintes relatives aux plastifiants du PVC<\/p>\n

Les diff\u00e9rentes utilisations des produits sur le plastifiant PVC - odeur, toxicit\u00e9, propri\u00e9t\u00e9s \u00e9lectriques, climatiques et thermiques - sont soumises \u00e0 certaines exigences.<\/p>","protected":false},"excerpt":{"rendered":"

Connaissez-vous le plastifiant TOTM ? Les plastifiants TOTM sont principalement utilis\u00e9s dans la production de fils et de c\u00e2bles r\u00e9sistants \u00e0 la chaleur \u00e0 105 degr\u00e9s Celsius, ainsi que d'autres plaques, feuilles, joints et autres produits n\u00e9cessitant une r\u00e9sistance \u00e0 la chaleur et une durabilit\u00e9. Les plastifiants TOTM conviennent au chlorure de polyvinyle, aux copolym\u00e8res de chlorure de vinyle, au nitrate de cellulose, au butyrate d'\u00e9thyle de cellulose, au polym\u00e9thyl [...]<\/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\/fr\/do-you-know-totm-plasticizer\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\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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