{"id":44620,"date":"2023-07-26T11:11:58","date_gmt":"2023-07-26T11:11:58","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/good-practice\/alternatives-aux-secheurs-de-cobalt-pour-les-peintures\/"},"modified":"2025-09-04T11:32:52","modified_gmt":"2025-09-04T11:32:52","slug":"alternatives-aux-secheurs-de-cobalt-pour-les-peintures","status":"publish","type":"good-practice","link":"https:\/\/stopcarcinogensatwork.eu\/fr\/good-practice\/alternatives-aux-secheurs-de-cobalt-pour-les-peintures\/","title":{"rendered":"Alternatives aux s\u00e9cheurs de cobalt pour les peintures"},"content":{"rendered":"<p>Les sels organiques de cobalt sont tr\u00e8s efficaces comme agents de s\u00e9chage des peintures, mais les inqui\u00e9tudes croissantes concernant les dangers potentiels associ\u00e9s aux compos\u00e9s de cobalt ont incit\u00e9 les producteurs \u00e0 chercher des substituts.<br \/>\nLes siccatifs au mangan\u00e8se repr\u00e9sentent actuellement la principale alternative au cobalt, avec leur pouvoir de s\u00e9chage \u00e9lev\u00e9, bien qu&rsquo;inf\u00e9rieur \u00e0 celui du cobalt. Leur principal inconv\u00e9nient est la d\u00e9coloration brune et le jaunissement des peintures blanches et claires. Le mangan\u00e8se donne un temps de s\u00e9chage plus long mais une meilleure duret\u00e9 de film que les siccatifs \u00e0 base de cobalt.  <\/p>\n<p>Un autre exemple pourrait \u00eatre le bis(2-\u00e9thylhexanoate) de mangan\u00e8se qui peut remplacer les acides napht\u00e9niques, les sels de cobalt (napht\u00e9nate de cobalt) comme siccatifs. Des sels similaires (octoates\/\u00e9thylhexanoates, napht\u00e9nates) de m\u00e9taux tels que le fer ou le vanadium peuvent \u00e9galement \u00eatre utilis\u00e9s comme alternatives. <\/p>\n<p>En outre, les siccatifs peuvent \u00eatre utilis\u00e9s avec des esters aliphatiques \u00e0 faible cha\u00eene d&rsquo;acide ol\u00e9ique et linol\u00e9ique (non class\u00e9s comme toxiques ou comme COV) au lieu des solvants aliphatiques ou aromatiques habituels.<\/p>\n","protected":false},"template":"","sector":[1989,1994,2170,1898],"carcinogens":[1516],"stop":[2060],"country":[],"class_list":["post-44620","good-practice","type-good-practice","status-publish","hentry","sector-fabrication-de-peintures-et-de-revetements","sector-fabrication-de-peintures-vernis-et-revetements-similaires-dencres-dimprimerie-et-de-mastics-y-compris-les-frittes","sector-la-construction","sector-peinture-et-vitrerie","carcinogens-composes-de-cobalt","stop-substitution"],"yoast_head":"<!-- This site is optimized with 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