{"id":664,"date":"2020-12-01T10:35:00","date_gmt":"2020-12-01T09:35:00","guid":{"rendered":"http:\/\/www.viscosimetre.fr\/?p=640"},"modified":"2026-02-03T16:16:45","modified_gmt":"2026-02-03T15:16:45","slug":"mesure-de-viscosite-suivi-de-fabrication-de-resine-phenolique-par-batch","status":"publish","type":"post","link":"https:\/\/www.sofraser.com\/fr\/actualites\/polymeres-chimie\/mesure-de-viscosite-suivi-de-fabrication-de-resine-phenolique-par-batch\/","title":{"rendered":"Suivi de fabrication de r\u00e9sines ph\u00e9nolique par batch"},"content":{"rendered":"\n

Application de la mesure de viscosit\u00e9 en polym\u00e9risation<\/h2>\n\n\n\n

Mesurer la viscosit\u00e9 est un moyen indirect de mesurer de la masse mol\u00e9culaire des polym\u00e8res<\/strong>. Les r\u00e9sines ph\u00e9noliques<\/a> ont des r\u00e9actions exothermiques. Elles sont tr\u00e8s sensibles \u00e0 la temp\u00e9rature, et leur valeur de viscosit\u00e9 n\u00e9cessite une observation continue. Si la r\u00e9action se produit trop rapidement, il en r\u00e9sulte une mauvaise qualit\u00e9 du polym\u00e8re et un possible durcissement. Cela cause d’\u00e9normes pertes de mati\u00e8res premi\u00e8res et de tr\u00e8s longs temps d\u2019arr\u00eat n\u00e9cessitant une maintenance compliqu\u00e9e, des co\u00fbts de main d\u2019\u0153uvre suppl\u00e9mentaires et des retards de livraison. Parfois m\u00eame toute l\u2019installation doit \u00eatre remplac\u00e9e, repr\u00e9sentant un co\u00fbt exorbitant.<\/p>\n\n\n\n

Les points critiques li\u00e9s \u00e0 la viscosit\u00e9 de r\u00e9sines dans un proc\u00e9d\u00e9 de polym\u00e9risation par batch<\/strong> sont les suivants : contr\u00f4le des mati\u00e8res premi\u00e8res; d\u00e9tection du d\u00e9but de la r\u00e9action; contr\u00f4le de la vitesse de polym\u00e9risation, mesure de la masse mol\u00e9culaire, caract\u00e9risation de la longueur de cha\u00eene, d\u00e9tection du point final de r\u00e9action, contr\u00f4le de la dilution du polym\u00e8re, mesure de la concentration, et contr\u00f4le de la qualit\u00e9 finale du produit. <\/p>\n\n\n\n

La tr\u00e8s bonne sensibilit\u00e9 du MIVI<\/a> dans les faibles viscosit\u00e9s, associ\u00e9e \u00e0 une haute gamme pleine \u00e9chelle du capteur; en font l\u2019instrument id\u00e9al pour contr\u00f4ler la viscosit\u00e9<\/strong> des process de polym\u00e9risation de r\u00e9sine ph\u00e9nolique.<\/p>\n\n\n\n

L’installation d’un capteur MIVI<\/a> sur un r\u00e9acteur de r\u00e9sine ph\u00e9nolique dans une usine fonctionnant par batch. Il offre une plus grande s\u00e9curit\u00e9 en production gr\u00e2ce aux alarmes, et \u00e9vitant tout probl\u00e8me de durcissement. Depuis, cette usine n\u2019a plus rencontr\u00e9 de probl\u00e8me de prise en masse de l\u2019installation. Les \u00e9conomies r\u00e9alis\u00e9es apr\u00e8s l’installation du viscosim\u00e8tre de process MIVI dans l\u2019unit\u00e9 de polym\u00e9risation de r\u00e9sine ph\u00e9nolique par batch; se chiffrent avec un retour sur investissement d\u2019environ un an.<\/p>\n\n\n\n

Rejoignez-nous sur LinkedIn<\/a> et YouTube<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Application de la mesure de viscosit\u00e9 en polym\u00e9risation Mesurer la viscosit\u00e9 est un moyen indirect de mesurer de la masse mol\u00e9culaire des polym\u00e8res. Les r\u00e9sines ph\u00e9noliques ont des r\u00e9actions exothermiques. Elles sont tr\u00e8s sensibles \u00e0 la temp\u00e9rature, et leur valeur de viscosit\u00e9 n\u00e9cessite une observation continue. Si la r\u00e9action se produit trop rapidement, il en […]… Lire plus<\/a><\/p>\n","protected":false},"author":3,"featured_media":11104,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,850],"tags":[],"acf":[],"yoast_head":"\nSOFRASER - Surveillance par lots de la fabrication de r\u00e9sines ph\u00e9nolique<\/title>\n<meta name=\"description\" content=\"Mesurer la viscosit\u00e9 est un moyen indirect de mesurer de la masse mol\u00e9culaire des polym\u00e8res. 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