{"id":19503,"date":"2017-10-25T12:32:09","date_gmt":"2017-10-25T12:32:09","guid":{"rendered":"https:\/\/www.uw-elast.se\/polyuretan\/aging\/"},"modified":"2026-04-01T08:01:24","modified_gmt":"2026-04-01T08:01:24","slug":"aging","status":"publish","type":"page","link":"https:\/\/www.uw-elast.se\/en\/polyurethane\/aging\/","title":{"rendered":"Aging"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1320px + 0px );margin-left: calc(-0px \/ 2 );margin-right: calc(-0px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:0px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:0px;--awb-width-medium:100%;--awb-spacing-right-medium:0px;--awb-spacing-left-medium:0px;--awb-width-small:100%;--awb-spacing-right-small:0px;--awb-spacing-left-small:0px;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>Like everything else, urethane elastomers age. Aging is caused by, among other things, water, heat, light, oxygen, chemicals, fatigue, microorganisms, mechanical attacks, etc. Aging types can be divided into purely mechanical aging (e.g., fatigue), thermal degradation, thermo-oxidative degradation, photo-oxidative degradation, radiolysis, acidolysis, hydrolysis, microbiological attacks, etc. Most often, it is a combination of several degradation mechanisms. One of the most common causes of severe degradation of certain <a href=\"https:\/\/www.uw-elast.se\/en\/polyuretan\/\">polyurethanes<\/a> is hydrolysis, which is caused by water and heat together (Hydrolysis is Greek and is formed from hydro = water and lysis = decomposition).<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":0,"parent":18193,"menu_order":12,"comment_status":"closed","ping_status":"closed","template":"side-navigation.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-19503","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aging - UW-ELAST<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uw-elast.se\/en\/polyurethane\/aging\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aging - 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