{"id":17657,"date":"2018-03-09T09:05:49","date_gmt":"2018-03-09T09:05:49","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/comportamiento-cinetico-de-fibras-tencell-con-colorantes-directos\/"},"modified":"2018-03-09T09:05:49","modified_gmt":"2018-03-09T09:05:49","slug":"comportamiento-cinetico-de-fibras-tencell-con-colorantes-directos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/comportamiento-cinetico-de-fibras-tencell-con-colorantes-directos\/","title":{"rendered":"Comportamiento cin\u00e9tico de fibras tencell con colorantes directos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel-jose Lis Arias <\/strong><\/h2>\n<p>El objetivo principal de la presente tesis, cin\u00e9tica de tintura de tencel, se centra en dos objetivos parciales: la sensibilidad a la temperatura y el efecto de la variaci\u00f3n de la concentraci\u00f3n de electrolito en la misma.  la evaluaci\u00f3n cin\u00e9tica del sistema fibra-colorante, se ha realizado mediante la evoluci\u00f3n de la expresi\u00f3n ct\/cinf, relaci\u00f3n entre colorante absorbido por la fibra en un tiempo t y la concentraci\u00f3n del mismo en el equilibrio, en funci\u00f3n de los distintos par\u00e1metros estudiados a trav\u00e9s del an\u00e1lisis de varios modelos.  la aproximaci\u00f3n a dicha evaluaci\u00f3n puede realizarse mediante. Modelos cin\u00e9ticos semi-emp\u00edricos y modelos matem\u00e1ticos provenientes de la segunda ley de fick. En los primeros, es la constante cin\u00e9tica k el par\u00e1metro definitorio del proceso, mientras que, en los modelos matem\u00e1ticos es el adimensional dt\/r2.  ambos enfoques describen la evoluci\u00f3n del mismo fen\u00f3meno y, por lo que deber\u00eda existir alg\u00fan tipo de relaci\u00f3n entre k y dt\/r2. El estudio del proceso desde ambos puntos de vista y, cuando sea posible, establecer la relaci\u00f3n mencionada, es otro de los objetivos de la tesis. Con ello, se podr\u00e1 comparar la incidencia estructural del sustrato respecto al comportamiento cin\u00e9tico.  siendo tencel una fibra celul\u00f3sica, se ha realizado un an\u00e1lisis comparativo con viscosa, mediante un estudio experimental en celda de tintura en flujo continuo con medici\u00f3n espectrofotom\u00e9trica on line.  las condiciones experimentales escogidas han sido: temperaturas de 30,40,50,60,70 y 80\u00c2\u00bac y (nacl) de 0.5, 1.0 y 1.5 g\/l, valorando la cantidad de colorante que la fibra absorbe, en funci\u00f3n del tiempo.  la comparaci\u00f3n de d\/r2 entre ambas fibras indica que:  exceptuando el modelo de chrastil, los valores de d\/r2 obtenidos, disminuyen con el aumento de la concentraci\u00f3n de electrolito.  los valores obtenidos a partir de la aproximaci\u00f3n de crank y de la de rais-militky presentan gran similitud.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Comportamiento cin\u00e9tico de fibras tencell con colorantes directos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Comportamiento cin\u00e9tico de fibras tencell con colorantes directos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel-jose Lis Arias <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/06\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Josep Valldeperas Morell<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Cegarra s\u00e1nchez <\/li>\n<li>j. Gilabert eduardo (vocal)<\/li>\n<li>publio Puente garrido (vocal)<\/li>\n<li> Ovejero escudero Juan  b. (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel-jose Lis Arias El objetivo principal de la presente tesis, cin\u00e9tica de tintura de tencel, se centra [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[41446,332,2745,199,15596,17,560,966,2453,15740],"tags":[55175,15743,55174,55173,55176,15745],"class_list":["post-17657","post","type-post","status-publish","format-standard","hentry","category-celulosa","category-ciencias-tecnologicas","category-cinetica-quimica","category-fisica","category-politecnica-de-catalunya","category-quimica","category-quimica-fisica","category-quimica-macromolecular","category-tecnologia-industrial","category-tecnologia-textil","tag-j-gilabert-eduardo","tag-jose-cegarra-sanchez","tag-josep-valldeperas-morell","tag-manuel-jose-lis-arias","tag-ovejero-escudero-juan-b","tag-publio-puente-garrido"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/17657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=17657"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/17657\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=17657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=17657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=17657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}