{"id":1,"date":"2014-10-24T08:11:00","date_gmt":"2014-10-24T05:11:00","guid":{"rendered":"http:\/\/blog.polyurethan.ru\/?p=1"},"modified":"2021-10-06T12:42:41","modified_gmt":"2021-10-06T09:42:41","slug":"properties-of-polyurethane-and-rubber","status":"publish","type":"post","link":"https:\/\/blog.polyurethan.ru\/es\/2014\/10\/24\/properties-of-polyurethane-and-rubber\/","title":{"rendered":"Propiedades de poliuretano en comparaci\u00f3n con el caucho."},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 son los poliuretanos?<\/h2>\n\n\n\n<p>POLIURETANOS:\nuna clase de elast\u00f3meros sint\u00e9ticos con propiedades programables. Los\npoliuretanos se usan ampliamente en la industria como sustitutos efectivos del\ncaucho, para la fabricaci\u00f3n de piezas que operan en entornos agresivos en\ncondiciones de altas cargas y temperaturas alternas. La temperatura de\nfuncionamiento para la mayor\u00eda de los poliuretanos es de -60 \u00b0 C a + 80 \u00b0 C.\nPermitimos el calentamiento a corto plazo (hasta 24 horas) a 120 \u00b0 C.<\/p>\n\n\n\n<p>Los\npoliuretanos son ligeramente susceptibles al envejecimiento, tienen una\ntemperatura de transici\u00f3n v\u00edtrea baja y una alta resistencia a las influencias\nambientales. Los poliuretanos son resistentes a la abrasi\u00f3n, a la mayor\u00eda de\nlos solventes org\u00e1nicos, al ozono y a los rayos ultravioleta, al agua de mar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Programabilidad\nde las propiedades de poliuretano.<\/h2>\n\n\n\n<p>Como se\nmencion\u00f3 anteriormente, &#8220;poliuretano&#8221; es el nombre generalizado para\ntoda una clase de sustancias sint\u00e9ticas. La ventaja indudable de los\npoliuretanos es que la dureza (elasticidad) del poliuretano est\u00e1 programada, es\ndecir, puede variar en un amplio rango, dependiendo de la proporci\u00f3n de\ncomponentes. Los poliuretanos son de uno, dos, tres componentes. La calidad de\nvarios poliuretanos, sus caracter\u00edsticas y, en consecuencia, su precio var\u00edan\nsignificativamente.<\/p>\n\n\n\n<p>Producimos productos de poliuretano de varios tipos de dureza. Y, por lo tanto, incluso el poliuretano que utilizamos tiene propiedades diferentes que, sin embargo, en un grado u otro, en cualquier caso, superan las propiedades del caucho. <strong>La siguiente es una comparaci\u00f3n de las propiedades promedio del poliuretano y el caucho que utilizamos.<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-text-align-center has-luminous-vivid-orange-color\"><strong>COMPARACI\u00d3N de las propiedades fisico-mec\u00e1nicas del caucho y poliuretano<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter pu-table is-style-stripes\"><table class=\"has-subtle-pale-pink-background-color has-background\"><tbody><tr><td> <strong>Nombre del indicador<\/strong> <\/td><td> <strong>Caucho<\/strong> <\/td><td> <strong>Poliuretano<\/strong> <\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Dureza Shore (escala A) <\/td><td class=\"has-text-align-center\" data-align=\"center\"> 65-75 <\/td><td class=\"has-text-align-center\" data-align=\"center\">40-98 *   <\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> M\u00f3dulo de tracci\u00f3n 100% <\/td><td class=\"has-text-align-center\" data-align=\"center\">12<\/td><td class=\"has-text-align-center\" data-align=\"center\">29<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Elasticidad de rebote (%) <\/td><td class=\"has-text-align-center\" data-align=\"center\">30<\/td><td class=\"has-text-align-center\" data-align=\"center\">40<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Resistencia a la tracci\u00f3n a la rotura (kg \/ cm2) <\/td><td class=\"has-text-align-center\" data-align=\"center\">115<\/td><td class=\"has-text-align-center\" data-align=\"center\">312<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Alargamiento a la rotura (%) <\/td><td class=\"has-text-align-center\" data-align=\"center\">300<\/td><td class=\"has-text-align-center\" data-align=\"center\">540<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Resistencia al desgarro (m\u00e9todo C), N \/ mm <\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">58<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"> Coeficiente de escarcha en recuperaci\u00f3n el\u00e1stica despu\u00e9s de la compresi\u00f3n, a \u201350 \u00b0 \u0421 <\/td><td class=\"has-text-align-center\" data-align=\"center\"> 0.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">  0.45   <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>* Par\u00e1metro programable<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-background has-luminous-vivid-orange-background-color\" href=\"https:\/\/polyurethan.es\/category\/avtozapchasti-981\/\"> <strong>b\u00fasqueda avanzada de piezas <\/strong><\/a><\/div>\n\n\n\n<p><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Como se mencion\u00f3 anteriormente, &#8220;poliuretano&#8221; es el nombre generalizado para toda una clase de sustancias sint\u00e9ticas. La calidad de varios poliuretanos, sus caracter\u00edsticas y, en consecuencia, su precio var\u00edan significativamente.<\/p>\n","protected":false},"author":1,"featured_media":572,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[45,19,20,21],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-about-polyurethane-and-other-materials","tag-sravnenie-reziny-i-poliuretana","tag-poliuretan-chto-jeto","tag-poliuretan-informacija","tag-poliuretan-podrobnee"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"es","enabled_languages":["ru","en","es"],"languages":{"ru":{"title":true,"content":true,"excerpt":true},"en":{"title":true,"content":true,"excerpt":true},"es":{"title":true,"content":true,"excerpt":true}}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Propiedades de poliuretano en comparaci\u00f3n con el caucho. - 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