{"id":172851,"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":"2026-09-04T12:13:11","modified_gmt":"2026-09-04T10:13:11","slug":"tensioactivos-silicona-polioles-reciclados","status":"publish","type":"post","link":"https:\/\/hosting175685eu-cp704.wordpresstemporal.com\/es\/tensioactivos-silicona-polioles-reciclados\/","title":{"rendered":"EVALUACI\u00d3N TENSIOACTIVOS DE SILICONA PARA ESPUMAS FLEXIBLES DE POLIURETANO FORMULADAS CON POLIOLES RECICLADOS"},"content":{"rendered":"

[vc_row][vc_column][vc_custom_heading text_size=\u00bbh4″ uncode_shortcode_id=\u00bb914330″]<\/p>\n

Introducci\u00f3n<\/b><\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00bb252547″]La incorporaci\u00f3n de polioles reciclados en espumas flexibles de poliuretano constituye una v\u00eda prometedora para reducir el consumo de materias primas v\u00edrgenes y avanzar hacia modelos de producci\u00f3n m\u00e1s circulares. Sin embargo, la variabilidad qu\u00edmica de estos materiales puede afectar la compatibilidad de la formulaci\u00f3n, la estabilidad de la espuma y sus propiedades finales.<\/p>\n

En este estudio se evaluaron cuatro tensioactivos de silicona (E0329_1, E0329_2, E0329_3 y E0329_4) dise\u00f1ados para formulaciones flexibles tipo slabstock con contenido de poliol reciclado. Se analizaron par\u00e1metros de compatibilidad, estabilidad, regulaci\u00f3n celular, densidad, dureza (CLD), flujo de aire y deformaci\u00f3n remanente por compresi\u00f3n (compression set, CS).[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading heading_semantic=\u00bbh3″ text_size=\u00bbh4″ uncode_shortcode_id=\u00bb175281″]<\/p>\n

Objetivo<\/b><\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00bb186658″]Desarrollar y seleccionar un tensioactivo de silicona adecuado para formulaciones de espuma flexible basadas en poliol reciclado, garantizando un equilibrio entre estabilidad, regulaci\u00f3n celular, permeabilidad al aire y propiedades mec\u00e1nicas.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading uncode_shortcode_id=\u00bb335977″]<\/p>\n

Metodolog\u00eda<\/b><\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00bb200095″]Estabilidad<\/i><\/b><\/p>\n

Se realizaron ensayos de compatibilidad visual con una formulaci\u00f3n de PU utilizando cada tensioactivo (1 pphp), evaluando el estado inicial, tras 24 horas a temperatura ambiente y despu\u00e9s de un envejecimiento acelerado de 7 d\u00edas a 50 \u00b0C.<\/p>\n\n\n\n\n\n\n\n\n\n
Componente<\/th>\nPphp<\/th>\n<\/tr>\n<\/thead>\n
Poliol OH=48<\/td>\n75<\/td>\n<\/tr>\n
Repoliol<\/td>\n25<\/td>\n<\/tr>\n
H2O<\/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

 <\/p>\n

Posteriormente, se llevaron a cabo ensayos de espumaci\u00f3n de crecimiento libre (free rise) en formulaciones slabstock con 25 % y 50 % de poliol reciclado. Se evaluaron estabilidad de la espuma, estructura celular, dureza (CLD), densidad, flujo de aire y compression set.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading uncode_shortcode_id=\u00bb149090″]<\/p>\n

Resultados y discusi\u00f3n<\/b><\/h2>\n

[\/vc_custom_heading][vc_single_image media=\u00bb172788″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb259917″][vc_column_text uncode_shortcode_id=\u00bb847577″]<\/p>\n

Figura 1: Inicial test<\/b><\/h6>\n

[\/vc_column_text][vc_single_image media=\u00bb172794″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb995767″][vc_column_text uncode_shortcode_id=\u00bb920037″]<\/p>\n

Figura 2: 24h temperatura ambiente<\/b><\/h6>\n

[\/vc_column_text][vc_single_image media=\u00bb172800″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb210865″][vc_column_text uncode_shortcode_id=\u00bb127256″]<\/p>\n

Figura 3: Test de envejecimiento a 50\u00baC<\/b><\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00bb110623″]Los ensayos de compatibilidad mostraron una buena estabilidad inicial para todos los tensioactivos. Tras envejecimiento acelerado, la mayor\u00eda present\u00f3 cierta separaci\u00f3n de fases, evidenciando que las condiciones severas pueden afectar la estabilidad del sistema formulado.[\/vc_column_text][vc_custom_heading uncode_shortcode_id=\u00bb182983″]Espumas\u00a0<\/span><\/i><\/b>[\/vc_custom_heading][vc_single_image media=\u00bb172806″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb148614″][vc_column_text uncode_shortcode_id=\u00bb508010″]<\/p>\n

Figura 4: Espumas al 25% de repoliol<\/b><\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00bb146268″]En las formulaciones con 25 % de poliol reciclado, todos los candidatos proporcionaron una estabilizaci\u00f3n adecuada. Se observaron diferencias claras en permeabilidad al aire y regulaci\u00f3n celular. E0329_4 present\u00f3 la mayor respirabilidad y una estructura m\u00e1s abierta, mientras que E0329_2 mostr\u00f3 un comportamiento m\u00e1s cerrado.[\/vc_column_text][vc_single_image media=\u00bb172812″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb823596″][vc_column_text uncode_shortcode_id=\u00bb982585″]<\/p>\n

Figura 5: Valores del CLD en formulacion 50%Repoliol<\/b><\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00bb100019″]Con un 50 % de poliol reciclado no se observaron colapsos, confirmando la capacidad estabilizante de todos los candidatos. Los resultados de CLD indicaron distintos niveles de firmeza entre los tensioactivos. E0329_1 gener\u00f3 los valores m\u00e1s elevados, mientras que E0329_4 produjo espumas m\u00e1s suaves. E0329_3 destac\u00f3 por una estructura celular m\u00e1s fina y homog\u00e9nea.\u00a0<\/span>[\/vc_column_text][vc_single_image media=\u00bb172818″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb175023″][vc_column_text uncode_shortcode_id=\u00bb127993″]<\/p>\n

Figura 6: Estructura celular interna, 50% repoliol<\/b><\/h6>\n

[\/vc_column_text][vc_column_text uncode_shortcode_id=\u00bb113307″]Asimismo, E0329_2, E0329_3 y E0329_4 mostraron comportamientos similares en flujo de aire y celdas abiertas. Los resultados de compression set fueron aceptables para todas las formulaciones, destacando E0329_1 y E0329_3 por presentar los valores m\u00e1s bajos, indicativos de una mejor recuperaci\u00f3n tras la compresi\u00f3n.<\/p>\n

[\/vc_column_text][vc_single_image media=\u00bb172824″ media_width_percent=\u00bb100″ uncode_shortcode_id=\u00bb138456″][vc_column_text uncode_shortcode_id=\u00bb901883″]<\/p>\n

Figura 7: Densidades y breathability, 50% repoliol<\/b><\/h6>\n

[\/vc_column_text][vc_custom_heading uncode_shortcode_id=\u00bb122661″]<\/p>\n

Conclusiones<\/b><\/h2>\n

[\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00bb188790″]<\/p>\n

    \n
  • Todos los tensioactivos evaluados mostraron una capacidad de estabilizaci\u00f3n adecuada en formulaciones con poliol reciclado.<\/li>\n
  • La compatibilidad fue satisfactoria en condiciones est\u00e1ndar, aunque el envejecimiento acelerado revel\u00f3 cierta tendencia a la separaci\u00f3n de fases.<\/li>\n
  • E0329_4 destac\u00f3 por su elevada respirabilidad y car\u00e1cter de celda abierta.<\/li>\n
  • E0329_3 present\u00f3 la estructura celular m\u00e1s fina y homog\u00e9nea en formulaciones con 50 % de poliol reciclado.<\/li>\n
  • Los resultados confirman que la selecci\u00f3n del tensioactivo es un factor clave para optimizar el rendimiento de espumas flexibles sostenibles basadas en materias primas recicladas.<\/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=\u00bbh4″ uncode_shortcode_id=\u00bb914330″] Introducci\u00f3n [\/vc_custom_heading][vc_column_text uncode_shortcode_id=\u00bb252547″]La incorporaci\u00f3n de polioles reciclados en espumas flexibles de poliuretano constituye una v\u00eda prometedora para […]<\/p>\n","protected":false},"author":36,"featured_media":172834,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[1021,108],"tags":[1373,1370,1371,1369,1372,1368],"class_list":["post-172851","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pu-additives-es","category-research-blog-es","tag-aditivos-para-poliuretano","tag-espuma-flexible-de-poliuretano","tag-espuma-pu","tag-polioles-reciclados","tag-slabstock","tag-tensioactivos-de-silicona"],"acf":[],"yoast_head":"\nTensioactivos de silicona para polioles reciclados | 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