{"id":3440,"date":"2024-06-21T04:53:10","date_gmt":"2024-06-21T04:53:10","guid":{"rendered":"https:\/\/chicchem.com\/?post_type=product&#038;p=3440"},"modified":"2024-06-21T04:54:25","modified_gmt":"2024-06-21T04:54:25","slug":"phosphocyanide-catalyst-chicstablq-2","status":"publish","type":"product","link":"https:\/\/chicchem.com\/fr\/produit\/phosphocyanide-catalyst-chicstablq-2\/","title":{"rendered":"Catalyseur de phosphocyanure (ChicstabLQ-2)"},"content":{"rendered":"<p><span style=\"color: #28a7de;\"><strong><b>Description du produit<\/b><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Chicstab LQ-2<strong><b>\u00a0<\/b><\/strong>est un<strong><b>\u00a0<\/b><\/strong>\u00a0catalyseur phosphocyanog\u00e8ne liquide, formul\u00e9 avec des ingr\u00e9dients actifs 50%, offrant des performances exceptionnelles en polym\u00e9risation par ouverture de cycle \u00e0 haute activit\u00e9. Sa forme liquide assure une facilit\u00e9 d\u2019utilisation et d\u2019ajout. Dans la synth\u00e8se des poly\u00e9ther polyols, de petites mol\u00e9cules servent d&#039;initiateurs, permettant un blocage direct avec l&#039;oxyde d&#039;\u00e9thyl\u00e8ne pour produire des groupes hydroxyle primaires. La configuration t\u00eate-queue (HT) des mol\u00e9cules de poly\u00e9ther offre une s\u00e9lectivit\u00e9 sup\u00e9rieure.<\/span><\/p>\n<p><span style=\"color: #000000;\">Les polym\u00e8res synth\u00e9tis\u00e9s \u00e0 l\u2019aide de catalyseurs au cyanure de phosphore surmontent les limitations associ\u00e9es aux catalyseurs traditionnels comme l\u2019hydroxyde de potassium. Ils pr\u00e9sentent notamment un poids mol\u00e9culaire relatif plus \u00e9lev\u00e9, une distribution de poids mol\u00e9culaire plus \u00e9troite et des niveaux d&#039;insaturation r\u00e9duits, am\u00e9liorant ainsi la qualit\u00e9 globale du polym\u00e8re.<\/span><\/p>\n<p><span style=\"color: #28a7de;\"><strong><b>Propri\u00e9t\u00e9s physiques<\/b><\/strong><\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"background-color: #bce4f5;\" width=\"467\"><span style=\"color: #000000;\">Forme physique<\/span><\/td>\n<td width=\"710\"><span style=\"color: #000000;\">liquide jaune clair<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #bce4f5;\" width=\"467\"><span style=\"color: #000000;\">Concentration du catalyseur<\/span><\/td>\n<td width=\"710\"><span style=\"color: #000000;\">0,3 g\/ml ~ 0,6 g\/ml<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"background-color: #bce4f5;\" width=\"467\"><span style=\"color: #000000;\">Indice d&#039;activit\u00e9, g\/g, \u2265<\/span><\/td>\n<td width=\"710\"><span style=\"color: #000000;\">200-300<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #28a7de;\"><strong><b>Guide d&#039;utilisation<\/b><\/strong><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Combinez l\u2019initiateur et le catalyseur \u00e0 temp\u00e9rature ambiante, remplacez-les par de l\u2019azote et mettez sous vide \u00e0 une temp\u00e9rature sp\u00e9cifi\u00e9e pour \u00e9liminer le solvant pendant 1 heure.<\/span><\/li>\n<li><span style=\"color: #000000;\">Augmenter la temp\u00e9rature \u00e0 90\u00b0C et introduire les monom\u00e8res pour la polym\u00e9risation. Maintenir la temp\u00e9rature de polym\u00e9risation entre 90\u00b0C et 95\u00b0C pour l&#039;oxyde de propyl\u00e8ne et entre 100\u00b0C et 105\u00b0C pour l&#039;oxyde d&#039;\u00e9thyl\u00e8ne.<\/span><\/li>\n<li><span style=\"color: #000000;\">Les initiateurs appropri\u00e9s comprennent de petites mol\u00e9cules telles que la glyc\u00e9rine et le propyl\u00e8ne glycol, ou des poly\u00e9thers de faible poids mol\u00e9culaire comme le poly\u00e9ther de 500 ou 1 000 poids mol\u00e9culaires. Pour les poly\u00e9thers de bas poids mol\u00e9culaire, pr\u00e9f\u00e9rez ceux sans antioxydants pour \u00e9viter l&#039;alt\u00e9ration de la couleur.<\/span><\/li>\n<li><span style=\"color: #000000;\">Apr\u00e8s polym\u00e9risation, de l&#039;\u00e9ther brut non trait\u00e9 contenant du KOH peut \u00eatre utilis\u00e9 pour \u00e9liminer les ions potassium. Les \u00e9thers bruts sont recommand\u00e9s comme d\u00e9marreurs.<\/span><\/li>\n<li><span style=\"color: #000000;\">Assurez-vous que la teneur en eau de l&#039;initiateur et du monom\u00e8re est inf\u00e9rieure \u00e0 300 ppm, car une teneur \u00e9lev\u00e9e en eau peut avoir un impact sur l&#039;activit\u00e9 du catalyseur.<\/span><\/li>\n<li><span style=\"color: #000000;\">Dans un premier temps, utiliser environ deux milli\u00e8mes du catalyseur, dont trois milli\u00e8mes pour la premi\u00e8re utilisation, en r\u00e9duisant progressivement par la suite. La concentration du catalyseur sera marqu\u00e9e pour une mesure pr\u00e9cise.<\/span><\/li>\n<li><span style=\"color: #000000;\">Conservez le catalyseur scell\u00e9 dans un dessiccateur et utilisez-le rapidement.<\/span><\/li>\n<li><span style=\"color: #000000;\">Les m\u00e9thodes d&#039;\u00e9limination du catalyseur comprennent la neutralisation avec un acide suivie d&#039;un traitement adsorbant ou d&#039;un traitement adsorbant direct. Des conditions sp\u00e9cifiques peuvent n\u00e9cessiter une exploration individuelle.<\/span><\/li>\n<li><span style=\"color: #000000;\">Le poids mol\u00e9culaire du catalyseur est calcul\u00e9 \u00e0 500.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Ces lignes directrices sont con\u00e7ues pour am\u00e9liorer l\u2019efficacit\u00e9 et la pr\u00e9cision des processus d\u2019utilisation des catalyseurs et de polym\u00e9risation.<\/span><\/p>\n<p><span style=\"color: #28a7de;\"><strong><b>Dur\u00e9e de conservation<\/b><\/strong>\u00a0<\/span><\/p>\n<p><span style=\"color: #000000;\">2 mois \u00e0 compter de la date de production sous emballage d&#039;origine non ouvert.<\/span><\/p>\n<p><span style=\"color: #28a7de;\"><strong><b>Stockage et transport<\/b><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Conserver dans un environnement frais, sec et sombre, en veillant \u00e0 ce que le r\u00e9cipient soit bien ferm\u00e9. Apr\u00e8s ouverture, refermez rapidement le r\u00e9cipient et utilisez le produit d\u00e8s que possible. Pendant le transport, prenez des pr\u00e9cautions pour \u00e9viter les fuites, respectez les pratiques de manipulation industrielle standard, manipulez avec soin et minimisez le risque de contamination de l&#039;environnement.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Prot\u00e8ge les mat\u00e9riaux des dommages oxydatifs, prolongeant leur dur\u00e9e de vie.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[18,19],"product_tag":[],"class_list":{"0":"post-3440","1":"product","2":"type-product","3":"status-publish","5":"product_cat-products","6":"product_cat-antioxidant-for-polyether-and-foam","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/product\/3440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/media?parent=3440"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/product_brand?post=3440"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/product_cat?post=3440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/product_tag?post=3440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}