{"id":47398,"date":"2020-04-15T04:52:53","date_gmt":"2020-04-15T04:52:53","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/fenomenos-de-cristalizacion-y-nucleacion-heterogenea-en-poliolefinas\/"},"modified":"2020-04-15T04:52:53","modified_gmt":"2020-04-15T04:52:53","slug":"fenomenos-de-cristalizacion-y-nucleacion-heterogenea-en-poliolefinas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/fenomenos-de-cristalizacion-y-nucleacion-heterogenea-en-poliolefinas\/","title":{"rendered":"Fenomenos de cristalizacion y nucleacion heterogenea en poliolefinas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jos\u00e9 Mar\u00eda Salla Tarrag\u00f3 <\/strong><\/h2>\n<p>Mediante tecnicas calorimetricas y viscoelasticas se ha estudiado el desarrollo de la cristalizacion y el comportamiento termico de polietilenos lineales y ramificados se han nucleado heterogeneamente con sustancias atipicas como la sacarosa y el alcanfor y se ha analizado como quedaban modificados los habitos cristalinos. Entre las conclusiones que se han obtenido cabe citar: 1) las ramificaciones entorpecen el desarrollo de la cristalinidad. 2) las teorias y modelos clasicos no explican suficientemente los resultados experimentales. 3) la nucleacion heterogenea actua en el sentido de aumentar la velocidad de nucleacion por lo que las muestras quedan menos afectadas por la historia termica. 4) sin aumentar sustancialmente la cristalinidad aumenta la perfeccion del material cristalizado dando estructuras esferuliticas mas compactas y homogeneas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Fenomenos de cristalizacion y nucleacion heterogenea en poliolefinas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Fenomenos de cristalizacion y nucleacion heterogenea en poliolefinas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jos\u00e9 Mar\u00eda Salla Tarrag\u00f3 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1980<\/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>Gonzalo Martin Guzman<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Gonzalo Martin Guzman <\/li>\n<li>Enrique Casassas Simo (vocal)<\/li>\n<li>Juan  Antonio Subirana Torrent (vocal)<\/li>\n<li>Ricardo Diaz Calleja (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jos\u00e9 Mar\u00eda Salla Tarrag\u00f3 Mediante tecnicas calorimetricas y viscoelasticas se ha estudiado el desarrollo de la cristalizacion [&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 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