{"id":18176,"date":"2002-05-07T00:00:00","date_gmt":"2002-05-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/produccion-de-tableros-de-fibras-a-partir-de-miscanthus-sinensis\/"},"modified":"2002-05-07T00:00:00","modified_gmt":"2002-05-07T00:00:00","slug":"produccion-de-tableros-de-fibras-a-partir-de-miscanthus-sinensis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/produccion-de-tableros-de-fibras-a-partir-de-miscanthus-sinensis\/","title":{"rendered":"Producci\u00f3n de tableros de fibras a partir de miscanthus sinensis"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jorge  Alberto Velasquez Jimenez <\/strong><\/h2>\n<p>Se han logrado fabricar tableros de fibras sin aditivos de calidad comercial a partir de miscanthus sinensis. El miscanthus es una planta tipo ca\u00f1a de origen asi\u00e1tico cuyo cultivo ha sido adaptado a las condiciones europeas y est\u00e1 siendo estudiada como sustituto de cultivos agroalimentarios. El miscanthus ha sido pretratado con vapor, posteriormente se ha secado, molido y prensado para formar los tableros. Se han optimizado tanto las condiciones del pretratamiento como las del prensado. Los tableros de fibras obtenidos se pueden utilizar como materiales de construcci\u00f3n sustitutos de la madera y de los pl\u00e1sticos. El hecho de que no tengan aditivos sint\u00e9ticos representa una gran ventaja pues las resinas utilizadas hasta ahora cmo aditivos son derivados del petr\u00f3leo (recurso no renovable). Por otra parte las emisiones de algunos residuos de dichas resinas en el producto final est\u00e1n sometidas a una legislaci\u00f3n ambiental muy severa. Actualmente los tableros de fibras se fabrican, principalmente, a partir de madera. El miscanthus, comparado con la madera, ofrece un mayor rendimiento pues para su cultivo se requiere menos \u00e1rea y menos tiempo. Uno de los mayores problemas de los tableros de fibras hechos a partir de plantas anuales como el miscanthus es el r\u00e1pido deterioro que sufren en ambientes h\u00famedos, el pretratamiento con vapor disminuye dr\u00e1sticamente dicha sensibilidad a la humedad.  tambi\u00e9n se ha verificado que la adici\u00f3n, de hasta un 30%, de lignina kraft a los tableros mejora algunas propiedades mec\u00e1nicas sin deteriorar las dem\u00e1s caracter\u00edsticas. La lignina kraft es un residuos de la madera utilizada en la producci\u00f3n del papel y actualmente se usa como combustible en la papeleras. La lignina dentro de los tableros cumple funciones adhesivas y de relleno.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Producci\u00f3n de tableros de fibras a partir de miscanthus sinensis<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Producci\u00f3n de tableros de fibras a partir de miscanthus sinensis <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jorge  Alberto Velasquez Jimenez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Rovira i virgili<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 05\/07\/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>Joan Salvad\u00f3 Rovira<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Farriol i roig\u00e9s xavier <\/li>\n<li>Jos\u00e9 Francisco Colom pastor (vocal)<\/li>\n<li>Manuel Bao iglesias (vocal)<\/li>\n<li>Jes\u00fas Fern\u00e1ndez gonz\u00e1lez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jorge Alberto Velasquez Jimenez Se han logrado fabricar tableros de fibras sin aditivos de calidad comercial a [&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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