{"id":172843,"date":"2026-09-04T11:16:01","date_gmt":"2026-09-04T09:16:01","guid":{"rendered":"https:\/\/concentrol.com\/silicone-surfactants-recycled-polyol-pu-foams\/"},"modified":"2026-09-04T12:32:08","modified_gmt":"2026-09-04T10:32:08","slug":"evaluation-des-tensioactifs-silicones-pour-les-mousses-souples-de-polyurethane-formulees-avec-des-polyols-recycles","status":"publish","type":"post","link":"https:\/\/hosting175685eu-cp704.wordpresstemporal.com\/fr\/evaluation-des-tensioactifs-silicones-pour-les-mousses-souples-de-polyurethane-formulees-avec-des-polyols-recycles\/","title":{"rendered":"\u00c9VALUATION DES TENSIOACTIFS SILICON\u00c9S POUR LES MOUSSES SOUPLES DE POLYUR\u00c9THANE FORMUL\u00c9ES AVEC DES POLYOLS RECYCL\u00c9S"},"content":{"rendered":"

[vc_row][vc_column][vc_custom_heading text_size=\u00a0\u00bbh4″ uncode_shortcode_id=\u00a0\u00bb142702″]<\/p>\n

Introduction<\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00a0\u00bb214716″]<\/p>\n

L\u2019incorporation de polyols recycl\u00e9s dans les mousses souples de polyur\u00e9thane<\/strong> constitue une voie prometteuse pour r\u00e9duire la consommation de mati\u00e8res premi\u00e8res vierges<\/strong> et progresser vers des mod\u00e8les de production plus circulaires. Cependant, la variabilit\u00e9 chimique<\/strong> de ces mat\u00e9riaux peut affecter la compatibilit\u00e9 de la formulation, la stabilit\u00e9 de la mousse et ses propri\u00e9t\u00e9s finales.<\/p>\n

Dans cette \u00e9tude, quatre tensioactifs silicon\u00e9s (E0329_1, E0329_2, E0329_3 et E0329_4)<\/strong> con\u00e7us pour des formulations souples de type slabstock contenant du polyol recycl\u00e9 ont \u00e9t\u00e9 \u00e9valu\u00e9s. Les param\u00e8tres de compatibilit\u00e9, stabilit\u00e9, r\u00e9gulation cellulaire, densit\u00e9, duret\u00e9 (CLD), d\u00e9bit d\u2019air et d\u00e9formation r\u00e9manente apr\u00e8s compression (compression set, CS)<\/strong> ont \u00e9t\u00e9 analys\u00e9s.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading heading_semantic=\u00a0\u00bbh3″ text_size=\u00a0\u00bbh4″ uncode_shortcode_id=\u00a0\u00bb170264″]<\/p>\n

Objectif<\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00a0\u00bb110853″]D\u00e9velopper et s\u00e9lectionner un tensioactif silicon\u00e9 adapt\u00e9 aux formulations de mousse souple \u00e0 base de polyol recycl\u00e9<\/strong>, en garantissant un \u00e9quilibre entre stabilit\u00e9, r\u00e9gulation cellulaire, perm\u00e9abilit\u00e9 \u00e0 l\u2019air et propri\u00e9t\u00e9s m\u00e9caniques<\/strong>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading uncode_shortcode_id=\u00a0\u00bb164814″]<\/p>\n

M\u00e9thodologie<\/h2>\n

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Stabilit\u00e9<\/h3>\n

Des essais de compatibilit\u00e9 visuelle ont \u00e9t\u00e9 r\u00e9alis\u00e9s avec une formulation de PU utilisant chaque tensioactif (1 pphp)<\/strong>, en \u00e9valuant l\u2019\u00e9tat initial, apr\u00e8s 24 heures \u00e0 temp\u00e9rature ambiante et apr\u00e8s un vieillissement acc\u00e9l\u00e9r\u00e9 de 7 jours \u00e0 50 \u00b0C<\/strong>.<\/p>\n\n\n\n\n\n\n\n\n\n
Composant<\/th>\nPphp<\/th>\n<\/tr>\n<\/thead>\n
Polyol OH=48<\/td>\n75<\/td>\n<\/tr>\n
Polyol recycl\u00e9<\/td>\n25<\/td>\n<\/tr>\n
H\u2082O<\/td>\n5<\/td>\n<\/tr>\n
TEDA<\/td>\n0,15<\/td>\n<\/tr>\n
DMEE<\/td>\n0,05<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Par la suite, des essais de moussage en expansion libre (free rise)<\/strong> ont \u00e9t\u00e9 r\u00e9alis\u00e9s sur des formulations slabstock contenant 25 % et 50 % de polyol recycl\u00e9<\/strong>. La stabilit\u00e9 de la mousse, la structure cellulaire, la duret\u00e9 (CLD), la densit\u00e9, le d\u00e9bit d\u2019air et le compression set ont \u00e9t\u00e9 \u00e9valu\u00e9s.<\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading uncode_shortcode_id=\u00a0\u00bb319497″]<\/p>\n

R\u00e9sultats et discussion<\/h2>\n

[\/vc_custom_heading][vc_single_image media=\u00a0\u00bb172786″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb259917″][vc_column_text uncode_shortcode_id=\u00a0\u00bb184043″]<\/p>\n

Figure 1 : Essai initial<\/h6>\n

[\/vc_column_text][vc_single_image media=\u00a0\u00bb172792″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb995767″][vc_column_text uncode_shortcode_id=\u00a0\u00bb470004″]<\/p>\n

Figure 2 : 24 h \u00e0 temp\u00e9rature ambiante<\/h6>\n

[\/vc_column_text][vc_single_image media=\u00a0\u00bb172798″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb210865″][vc_column_text uncode_shortcode_id=\u00a0\u00bb126525″]<\/p>\n

Figure 3 : Essai de vieillissement \u00e0 50 \u00b0C<\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00a0\u00bb141709″]<\/p>\n

Les essais de compatibilit\u00e9 ont montr\u00e9 une bonne stabilit\u00e9 initiale pour tous les tensioactifs<\/strong>. Apr\u00e8s le vieillissement acc\u00e9l\u00e9r\u00e9, la plupart ont pr\u00e9sent\u00e9 une certaine s\u00e9paration de phases<\/strong>, montrant que des conditions s\u00e9v\u00e8res peuvent affecter la stabilit\u00e9 du syst\u00e8me formul\u00e9.<\/p>\n

[\/vc_column_text][vc_custom_heading uncode_shortcode_id=\u00a0\u00bb109899″]Mousses[\/vc_custom_heading][vc_single_image media=\u00a0\u00bb172804″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb148614″][vc_column_text uncode_shortcode_id=\u00a0\u00bb137590″]<\/p>\n

Figure 4 : Mousses avec 25 % de polyol recycl\u00e9<\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00a0\u00bb171681″]Dans les formulations contenant 25 % de polyol recycl\u00e9, tous les candidats ont assur\u00e9 une stabilisation ad\u00e9quate<\/strong>. Des diff\u00e9rences nettes ont \u00e9t\u00e9 observ\u00e9es en termes de perm\u00e9abilit\u00e9 \u00e0 l\u2019air et de r\u00e9gulation cellulaire<\/strong>. E0329_4 a pr\u00e9sent\u00e9 la respirabilit\u00e9 la plus \u00e9lev\u00e9e et une structure plus ouverte<\/strong>, tandis que E0329_2 a montr\u00e9 un comportement plus ferm\u00e9<\/strong>.[\/vc_column_text][vc_single_image media=\u00a0\u00bb172810″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb823596″][vc_column_text uncode_shortcode_id=\u00a0\u00bb379392″]<\/p>\n

Figure 5 : Valeurs de CLD dans la formulation avec 50 % de polyol recycl\u00e9<\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00a0\u00bb627852″]Avec 50 % de polyol recycl\u00e9, aucun effondrement n\u2019a \u00e9t\u00e9 observ\u00e9<\/strong>, confirmant la capacit\u00e9 stabilisante de tous les candidats. Les r\u00e9sultats de CLD ont indiqu\u00e9 diff\u00e9rents niveaux de fermet\u00e9 selon les tensioactifs. E0329_1 a g\u00e9n\u00e9r\u00e9 les valeurs les plus \u00e9lev\u00e9es<\/strong>, tandis que E0329_4 a produit des mousses plus souples<\/strong>. E0329_3 s\u2019est distingu\u00e9 par une structure cellulaire plus fine et plus homog\u00e8ne<\/strong>.[\/vc_column_text][vc_single_image media=\u00a0\u00bb172816″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb175023″][vc_column_text uncode_shortcode_id=\u00a0\u00bb739368″]<\/p>\n

Figure 6 : Structure cellulaire interne, 50 % de polyol recycl\u00e9<\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00a0\u00bb138728″]De m\u00eame, E0329_2, E0329_3 et E0329_4 ont pr\u00e9sent\u00e9 des comportements similaires en termes de d\u00e9bit d\u2019air et de cellules ouvertes. Les r\u00e9sultats de compression set ont \u00e9t\u00e9 acceptables pour toutes les formulations, E0329_1 et E0329_3 se distinguant par les valeurs les plus faibles<\/strong>, indiquant une meilleure r\u00e9cup\u00e9ration apr\u00e8s compression<\/strong>.[\/vc_column_text][vc_single_image media=\u00a0\u00bb172822″ media_width_percent=\u00a0\u00bb100″ uncode_shortcode_id=\u00a0\u00bb138456″][vc_column_text uncode_shortcode_id=\u00a0\u00bb657288″]<\/p>\n

Figure 7 : Densit\u00e9s et respirabilit\u00e9, 50 % de polyol recycl\u00e9<\/h6>\n

[\/vc_column_text][vc_custom_heading uncode_shortcode_id=\u00a0\u00bb480608″]<\/p>\n

Conclusions<\/h2>\n

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    \n
  • Tous les tensioactifs \u00e9valu\u00e9s ont montr\u00e9 une capacit\u00e9 de stabilisation ad\u00e9quate<\/strong> dans les formulations contenant du polyol recycl\u00e9.<\/li>\n
  • La compatibilit\u00e9 \u00e9tait satisfaisante dans des conditions standard, bien que le vieillissement acc\u00e9l\u00e9r\u00e9 ait r\u00e9v\u00e9l\u00e9 une certaine tendance \u00e0 la s\u00e9paration de phases<\/strong>.<\/li>\n
  • E0329_4 s\u2019est distingu\u00e9 par sa respirabilit\u00e9 \u00e9lev\u00e9e et son caract\u00e8re \u00e0 cellules ouvertes.<\/strong><\/li>\n
  • E0329_3 a pr\u00e9sent\u00e9 la structure cellulaire la plus fine et la plus homog\u00e8ne<\/strong> dans les formulations contenant 50 % de polyol recycl\u00e9.<\/li>\n
  • Les r\u00e9sultats confirment que la s\u00e9lection du tensioactif est un facteur cl\u00e9 pour optimiser les performances des mousses souples durables \u00e0 base de mati\u00e8res premi\u00e8res recycl\u00e9es.<\/strong><\/li>\n<\/ul>\n

    [\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

    [vc_row][vc_column][vc_custom_heading text_size=\u00a0\u00bbh4″ uncode_shortcode_id=\u00a0\u00bb142702″] Introduction [\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00a0\u00bb214716″] L\u2019incorporation de polyols recycl\u00e9s dans les mousses souples de polyur\u00e9thane constitue une voie prometteuse […]<\/p>\n","protected":false},"author":36,"featured_media":172832,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[1024,318],"tags":[1353,1354,1355,1166,1356,1357],"class_list":["post-172843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pu-additives-fr","category-research-blog-en-fr","tag-flexible-pu-foam","tag-foam-stability","tag-recycled-polyols","tag-silicone-surfactants-fr","tag-slabstock-foam","tag-sustainable-polyurethane"],"acf":[],"yoast_head":"\nSilicone Surfactants for Flexible PU Foams with Recycled Polyols<\/title>\n<meta name=\"description\" content=\"Discover how silicone surfactants for recycled polyols influence foam stability, cell structure, airflow and mechanical performance in flexible PU foams.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/concentrol.com\/fr\/evaluation-des-tensioactifs-silicones-pour-les-mousses-souples-de-polyurethane-formulees-avec-des-polyols-recycles\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Silicone Surfactants for Flexible PU Foams with Recycled Polyols\" \/>\n<meta property=\"og:description\" content=\"Discover how silicone surfactants for recycled polyols influence foam stability, cell structure, airflow and mechanical performance in flexible PU foams.\" \/>\n<meta property=\"og:url\" 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