{"id":2072,"date":"2014-06-11T13:19:44","date_gmt":"2014-06-11T19:19:44","guid":{"rendered":"https:\/\/www.ulprospector.com\/knowledge\/?p=2072"},"modified":"2018-02-09T14:21:52","modified_gmt":"2018-02-09T20:21:52","slug":"environmental-stress-cracking-of-polymers","status":"publish","type":"post","link":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/","title":{"rendered":"Environmental Stress Cracking of Polymers"},"content":{"rendered":"<p><em><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" src=\"https:\/\/www2.ulprospector.com\/images\/experts\/sepe.gif\" alt=\"\" width=\"200\" height=\"150\" \/>Recorded on June 11, 2014<\/em><br \/>\nPresented by\u00a0Michael Sepe<\/p>\n<p>Extensive studies of failures in plastic products show that environmental stress cracking (ESC) is the most common cause of these failures. These studies also show that amorphous materials are primarily affected by this mechanism. ESC is often mistaken for chemical attack since a chemical agent is part of the mechanism. However, ESC is not chemical attack. Therefore, a negative interaction between a plastic part and a harsh chemical environment is not a foregone conclusion and chemical compatibility charts that test materials in an unstressed state are not satisfactory tools for predicting susceptibility to ESC. The simultaneous presence of the chemical or chemicals and stress on the part are required in order for ESC to occur. Consequently, part design and processing are also important elements of preventing ESC. Join injection molding expert Michael Sepe for a webinar that explained the phenomenon of ESC and will illustrate the factors that promote it or prevent it.<\/p>\n<h4><a href=\"https:\/\/www2.ulprospector.com\/landing\/protolabs\/esc-sepe-webinar-ty.asp\">Download the slides<\/a><\/h4>\n<p><iframe loading=\"lazy\" class=\"wistia_embed\" src=\"\/\/fast.wistia.net\/embed\/iframe\/cq9zdc5wyk\" name=\"wistia_embed\" width=\"820\" height=\"465\" frameborder=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><a id=\"S\" name=\"S\"><\/a>Answer these questions to download the slides.<br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/www2.ulprospector.com\/questions\/default.aspx?Campaign=db2ff6eb-3672-49c1-93f4-b79bc65710a7\" width=\"600\" height=\"480\" frameborder=\"0\" scrolling=\"No\"><\/iframe><br \/>\n<a id=\"Q\" name=\"Q\"><\/a><\/p>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recorded on June 11, 2014 Presented by\u00a0Michael Sepe Extensive studies of failures in plastic products show that environmental stress cracking (ESC) is the most common cause of these failures. These studies also show that amorphous materials are primarily affected by &hellip; <a href=\"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/\">Continued<\/a><\/p>\n","protected":false},"author":20,"featured_media":3378,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","footnotes":""},"categories":[23,35],"tags":[275],"ppma_author":[1237],"class_list":{"0":"post-2072","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-plastics-1","8":"category-materials-webinar","9":"tag-materials","10":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Environmental Stress Cracking of Polymers - Prospector Knowledge Center<\/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:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Environmental Stress Cracking of Polymers - Prospector Knowledge Center\" \/>\n<meta property=\"og:description\" content=\"Recorded on June 11, 2014 Presented by\u00a0Michael Sepe Extensive studies of failures in plastic products show that environmental stress cracking (ESC) is the most common cause of these failures. These studies also show that amorphous materials are primarily affected by &hellip; Continued\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/\" \/>\n<meta property=\"og:site_name\" content=\"Prospector Knowledge Center\" \/>\n<meta property=\"article:published_time\" content=\"2014-06-11T19:19:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-02-09T20:21:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Guest Author\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Guest Author\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/\"},\"author\":{\"name\":\"Guest Author\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#\\\/schema\\\/person\\\/9085be4b12b9b306a72726c67d147c10\"},\"headline\":\"Environmental Stress Cracking of Polymers\",\"datePublished\":\"2014-06-11T19:19:44+00:00\",\"dateModified\":\"2018-02-09T20:21:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/\"},\"wordCount\":177,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2015\\\/11\\\/Michael_Sepe_Materials_Analyst.jpg\",\"keywords\":[\"Materials\"],\"articleSection\":[\"Plastics\",\"Materials\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/\",\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/\",\"name\":\"Environmental Stress Cracking of Polymers - Prospector Knowledge Center\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2015\\\/11\\\/Michael_Sepe_Materials_Analyst.jpg\",\"datePublished\":\"2014-06-11T19:19:44+00:00\",\"dateModified\":\"2018-02-09T20:21:52+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#\\\/schema\\\/person\\\/9085be4b12b9b306a72726c67d147c10\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#primaryimage\",\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2015\\\/11\\\/Michael_Sepe_Materials_Analyst.jpg\",\"contentUrl\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2015\\\/11\\\/Michael_Sepe_Materials_Analyst.jpg\",\"width\":200,\"height\":250},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/2072\\\/environmental-stress-cracking-of-polymers\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/ulprospector.ul.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Environmental Stress Cracking of Polymers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#website\",\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/\",\"name\":\"Prospector Knowledge Center\",\"description\":\"Welcome to the blog for UL Prospector, the most comprehensive raw material search engine for product developers.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/ulprospector.ul.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#\\\/schema\\\/person\\\/9085be4b12b9b306a72726c67d147c10\",\"name\":\"Guest Author\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=9615105800a0270a384212262298083881\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=96\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=96\",\"caption\":\"Guest Author\"},\"sameAs\":[\"https:\\\/\\\/ulprospector.ul.com\"],\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/author\\\/guest-author\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Environmental Stress Cracking of Polymers - Prospector Knowledge Center","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/","og_locale":"en_US","og_type":"article","og_title":"Environmental Stress Cracking of Polymers - Prospector Knowledge Center","og_description":"Recorded on June 11, 2014 Presented by\u00a0Michael Sepe Extensive studies of failures in plastic products show that environmental stress cracking (ESC) is the most common cause of these failures. These studies also show that amorphous materials are primarily affected by &hellip; Continued","og_url":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/","og_site_name":"Prospector Knowledge Center","article_published_time":"2014-06-11T19:19:44+00:00","article_modified_time":"2018-02-09T20:21:52+00:00","og_image":[{"width":200,"height":250,"url":"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg","type":"image\/jpeg"}],"author":"Guest Author","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Guest Author","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#article","isPartOf":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/"},"author":{"name":"Guest Author","@id":"https:\/\/ulprospector.ul.com\/#\/schema\/person\/9085be4b12b9b306a72726c67d147c10"},"headline":"Environmental Stress Cracking of Polymers","datePublished":"2014-06-11T19:19:44+00:00","dateModified":"2018-02-09T20:21:52+00:00","mainEntityOfPage":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/"},"wordCount":177,"commentCount":0,"image":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#primaryimage"},"thumbnailUrl":"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg","keywords":["Materials"],"articleSection":["Plastics","Materials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/","url":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/","name":"Environmental Stress Cracking of Polymers - Prospector Knowledge Center","isPartOf":{"@id":"https:\/\/ulprospector.ul.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#primaryimage"},"image":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#primaryimage"},"thumbnailUrl":"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg","datePublished":"2014-06-11T19:19:44+00:00","dateModified":"2018-02-09T20:21:52+00:00","author":{"@id":"https:\/\/ulprospector.ul.com\/#\/schema\/person\/9085be4b12b9b306a72726c67d147c10"},"breadcrumb":{"@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#primaryimage","url":"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg","contentUrl":"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2015\/11\/Michael_Sepe_Materials_Analyst.jpg","width":200,"height":250},{"@type":"BreadcrumbList","@id":"https:\/\/ulprospector.ul.com\/2072\/environmental-stress-cracking-of-polymers\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ulprospector.ul.com\/"},{"@type":"ListItem","position":2,"name":"Environmental Stress Cracking of Polymers"}]},{"@type":"WebSite","@id":"https:\/\/ulprospector.ul.com\/#website","url":"https:\/\/ulprospector.ul.com\/","name":"Prospector Knowledge Center","description":"Welcome to the blog for UL Prospector, the most comprehensive raw material search engine for product developers.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ulprospector.ul.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/ulprospector.ul.com\/#\/schema\/person\/9085be4b12b9b306a72726c67d147c10","name":"Guest Author","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=9615105800a0270a384212262298083881","url":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","caption":"Guest Author"},"sameAs":["https:\/\/ulprospector.ul.com"],"url":"https:\/\/ulprospector.ul.com\/author\/guest-author\/"}]}},"authors":[{"term_id":1237,"user_id":20,"is_guest":0,"slug":"guest-author","display_name":"Guest Author","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","author_category":"","first_name":"Guest","last_name":"Author","user_url":"https:\/\/ulprospector.ul.com","job_title":"","description":""}],"_links":{"self":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts\/2072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/comments?post=2072"}],"version-history":[{"count":0,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts\/2072\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/media\/3378"}],"wp:attachment":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/media?parent=2072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/categories?post=2072"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/tags?post=2072"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/ppma_author?post=2072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}