{"id":4883,"date":"2021-12-07T14:27:06","date_gmt":"2021-12-07T14:27:06","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4883"},"modified":"2026-08-25T09:30:57","modified_gmt":"2026-08-25T09:30:57","slug":"how-to-choose-the-correct-crosslinking-agent","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/how-to-choose-the-correct-crosslinking-agent\/","title":{"rendered":"How to Choose a Crosslinking Agent: Chemistry &#038; Testing"},"content":{"rendered":"<p><strong>R\u00e9ponse rapide :<\/strong> A crosslinking agent must match the polymer&#8217;s reactive groups and the intended cure mechanism. Compare stoichiometry, activation temperature, pot life, network density, compatibility, by-products, exposure controls and final mechanical or chemical-resistance targets.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Use a peroxide crosslinker as one defined route<\/h2>\n<p>Les <a href=\"https:\/\/longchangchemical.com\/fr\/product\/siperox-bipb\/\" data-lc-product-id=\"5811\" data-lc-link-role=\"primary\" data-lc-batch=\"batch-02-2026-08-15\">BIPB 96 organic peroxide crosslinker<\/a> page is a relevant reference for peroxide-cured rubber and polymer systems. It is not a universal coating crosslinker; compare active content, decomposition behavior, scorch safety, cure conditions and final properties in the intended polymer.<\/p>\n<h2><strong>What is a crosslinking agent?<\/strong><\/h2>\n\n\n\n\n<p>1. L'agent de co-r\u00e9ticulation d\u00e9signe un type d'agent auxiliaire qui am\u00e9liore l'efficacit\u00e9 de la r\u00e9ticulation des peroxydes, dont la plupart sont des compos\u00e9s avec des groupes fonctionnels polyinsatur\u00e9s. La contribution de l'agent auxiliaire de r\u00e9ticulation \u00e0 l'efficacit\u00e9 de la r\u00e9ticulation est g\u00e9n\u00e9ralement comprise comme fournissant une concentration plus \u00e9lev\u00e9e de sites r\u00e9actifs, inhibant les r\u00e9actions secondaires telles que la disproportion des radicaux polym\u00e8res ou la scission de la cha\u00eene, et aidant \u00e0 former plus de liaisons de r\u00e9ticulation.<\/p>\n\n\n\n<p>2. L'effet d'utilisation sp\u00e9cifique de l'agent de r\u00e9ticulation n'est pas seulement li\u00e9 \u00e0 sa structure chimique et \u00e0 la quantit\u00e9 ajout\u00e9e, mais aussi \u00e0 diverses conditions telles que le type de polym\u00e8re et le peroxyde de r\u00e9ticulation.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Influence de l'agent de r\u00e9ticulation sur les propri\u00e9t\u00e9s physiques<br><\/h3>\n\n\n\n<p>L'utilisation d'adjuvants de r\u00e9ticulation permet d'augmenter la densit\u00e9 de r\u00e9ticulation. En termes de propri\u00e9t\u00e9s physiques, cela se traduit par une augmentation du module, de la duret\u00e9 et une diminution de l'allongement \u00e0 la rupture et de la d\u00e9formation r\u00e9manente \u00e0 la compression. Dans certains cas, il peut \u00e9galement am\u00e9liorer la r\u00e9sistance \u00e0 la traction, la r\u00e9sistance \u00e0 la d\u00e9chirure, la r\u00e9sistance \u00e0 la chaleur, la r\u00e9sistance \u00e0 l'abrasion ou les performances dynamiques.<br>L'effet de l'utilisation d'un agent r\u00e9ticulant auxiliaire sur les propri\u00e9t\u00e9s physiques se manifeste principalement dans les aspects suivants : (Toutes les propri\u00e9t\u00e9s ne peuvent pas \u00eatre obtenues en m\u00eame temps, et certaines propri\u00e9t\u00e9s peuvent \u00eatre obtenues en utilisant des agents auxiliaires sp\u00e9cifiques).<\/p>\n\n\n\n<p><br>R\u00e9duire la compression permanente ;<\/p>\n\n\n\n<p>Augmenter la flexibilit\u00e9<\/p>\n\n\n\n<p>Augmenter le module<\/p>\n\n\n\n<p>Augmenter la duret\u00e9 ;<\/p>\n\n\n\n<p>R\u00e9duit la viscosit\u00e9 du caoutchouc et am\u00e9liore les performances de traitement ;<\/p>\n\n\n\n<p>Am\u00e9liorer la r\u00e9sistance \u00e0 l'huile ;<\/p>\n\n\n\n<p>Am\u00e9liorer la r\u00e9sistance au vieillissement thermique ;<\/p>\n\n\n\n<p>Am\u00e9liore l'adh\u00e9rence des produits en caoutchouc et en m\u00e9tal ;<\/p>\n\n\n\n<p>Augmenter la vitesse de vulcanisation ;<\/p>\n\n\n\n<p>R\u00e9duire la quantit\u00e9 de peroxyde ;<\/p>\n\n\n\n<p>Augmentation de la r\u00e9sistance \u00e0 la traction ;<\/p>\n\n\n\n<p>Am\u00e9liorer les performances de d\u00e9chirure et de d\u00e9chirure \u00e0 chaud ;<\/p>\n\n\n\n<p>Am\u00e9liorer les performances de flexion dynamique ;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. L'influence de la structure de l'agent de r\u00e9ticulation sur la performance de l'agent de r\u00e9ticulation<br><\/h3>\n\n\n\n<p>La structure de l'agent de r\u00e9ticulation est \u00e9troitement li\u00e9e \u00e0 la performance de l'agent de r\u00e9ticulation. Le type de groupe fonctionnel de l'agent de r\u00e9ticulation, le nombre de groupes fonctionnels, la structure du pont de liaison, la polarit\u00e9 de la mol\u00e9cule, le poids mol\u00e9culaire, etc. sont autant de facteurs qui affectent les performances de l'agent de r\u00e9ticulation.<\/p>\n\n\n\n<p>Le type et le nombre de groupes fonctionnels sont les principaux param\u00e8tres qui affectent la performance de vulcanisation de l'agent de r\u00e9ticulation, ce qui affecte directement l'activit\u00e9 de l'agent de r\u00e9ticulation, la solubilit\u00e9 dans le polym\u00e8re et les propri\u00e9t\u00e9s physiques du produit. Les agents de r\u00e9ticulation courants sont principalement des additifs bifonctionnels et trifonctionnels ;<\/p>\n\n\n\n<p>La structure du pont de liaison, qui comprend la polarit\u00e9 du pont de liaison, la longueur du pont de liaison et la structure mol\u00e9culaire. Bien que la structure du pont n'ait g\u00e9n\u00e9ralement pas d'effet direct sur l'activit\u00e9 de l'agent de r\u00e9ticulation, elle peut affecter l'efficacit\u00e9 de l'agent de r\u00e9ticulation, la solubilit\u00e9 dans le polym\u00e8re et la force de la liaison de r\u00e9ticulation, qui sont \u00e9galement des param\u00e8tres tr\u00e8s importants. \uff1b<\/p>\n\n\n\n<p>Le poids mol\u00e9culaire peut avoir un impact sur l'efficacit\u00e9 de l'agent de r\u00e9ticulation et peut \u00e9galement \u00eatre utilis\u00e9 comme param\u00e8tre d'\u00e9valuation important pour la volatilit\u00e9 de l'agent de r\u00e9ticulation. Si le poids mol\u00e9culaire est faible, la volatilit\u00e9 peut \u00eatre \u00e9lev\u00e9e ;<br>La polarit\u00e9 de l'agent de r\u00e9ticulation auxiliaire peut affecter directement sa solubilit\u00e9 dans le polym\u00e8re et d'autres facteurs, affectant ainsi l'efficacit\u00e9 et la performance de la vulcanisation ;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Classification des agents de r\u00e9ticulation<\/h3>\n\n\n\n<p>En fonction de leur contribution \u00e0 la vulcanisation, les auxiliaires de r\u00e9ticulation peuvent \u00eatre divis\u00e9s en deux cat\u00e9gories. L'une consiste \u00e0 augmenter le degr\u00e9 de vulcanisation tout en augmentant la vitesse de vulcanisation, ce qui est \u00e9galement appel\u00e9 le premier type d'agent de r\u00e9ticulation ; l'autre consiste \u00e0 augmenter uniquement le degr\u00e9 de vulcanisation ou la densit\u00e9 de r\u00e9ticulation sans augmenter la vitesse de vulcanisation, ce qui est \u00e9galement appel\u00e9 le deuxi\u00e8me type d'agent de r\u00e9ticulation.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-d8f6858a-b3e4-427d-9d02-a6546af18c59\"><strong>Contactez-nous d\u00e8s maintenant !<\/strong><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"block-25f05ed2-4b98-48c6-aa72-2e2bea400193\"><strong>Veuillez indiquer la source.<\/strong> <strong>Remplissez vos coordonn\u00e9es dans le formulaire ci-dessous, nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel <a href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a> pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/strong><\/h4>","protected":false},"excerpt":{"rendered":"<p>What is a crosslinking agent? 1. Co-crosslinking agent refers to a type of auxiliary agent that improves the crosslinking efficiency of peroxides, most of which are compounds with polyunsaturated functional<\/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-4883","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>How to Choose a Crosslinking Agent: Chemistry &amp; Testing<\/title>\n<meta name=\"description\" content=\"Choose a crosslinking agent by reactive groups, cure mechanism, temperature, pot life, network density, safety, compatibility and final performance testing.\" \/>\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\/how-to-choose-the-correct-crosslinking-agent\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Choose a Crosslinking Agent: Chemistry &amp; 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