{"id":2722,"date":"2022-08-10T10:28:40","date_gmt":"2022-08-10T01:28:40","guid":{"rendered":"https:\/\/www.pelnox.co.jp\/blog\/?p=2722"},"modified":"2022-08-10T16:35:27","modified_gmt":"2022-08-10T07:35:27","slug":"in-a-few-seconds-what-is-the-uv-curable-adhesive-that-can-cure-5-to-10-mm-shaded-areas-shadow-areas-and-dark-areas-only-with-uv","status":"publish","type":"post","link":"https:\/\/www.pelnox.co.jp\/blog\/en\/2722\/","title":{"rendered":"In a few seconds! What is the UV curable adhesive that can cure 5 to 10 mm shaded areas (shadow areas and dark areas) only with UV?"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"513\" height=\"244\" src=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-513x244.png\" alt=\"\" class=\"wp-image-2728\" srcset=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-513x244.png 513w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-768x365.png 768w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-1536x731.png 1536w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-2048x974.png 2048w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-304x145.png 304w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-curing-title-282x134.png 282w\" sizes=\"(max-width: 513px) 100vw, 513px\" \/><\/figure>\n\n\n\n<h3>Development Opportunity<\/h3>\n\n\n\n<h2>Request for shorter curing time for thermosetting resin products<\/h2>\n\n\n\n<p>\u3000In recent years, cost reduction through productivity improvement has become more and more important in order to strengthen competitiveness.<br>We have received many requests for shorter curing times for our thermosetting resin products.<\/p>\n\n\n\n<p>\u3000For example, general thermosetting epoxy resins require at least several tens of minutes to cure, but what customers actually require is a level of several tens of seconds to several minutes.<br>For this reason, we have focused on UV curing and decided to develop UV curable adhesives that can be cured in tens of seconds.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3>TASK<\/h3>\n\n\n\n<h2>Is it possible to cure areas that light cannot reach using only UV irradiation?<\/h2>\n\n\n\n<p>In developing UV curable adhesives, we focused on one issue.<br>That is, &#8220;Is it possible to cure even the areas where UV light does not reach (shadowed or shaded areas) just by UV irradiation?<br>This was the challenge we faced.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"673\" height=\"244\" src=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-673x244.jpg\" alt=\"\" class=\"wp-image-2735\" srcset=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-673x244.jpg 673w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-768x279.jpg 768w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-1536x557.jpg 1536w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-2048x743.jpg 2048w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-304x110.jpg 304w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/UV-irradiation-282x102.jpg 282w\" sizes=\"(max-width: 673px) 100vw, 673px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u3000Specifically, with general UV curable materials, as shown in the figure, the reaction does not progress in areas where UV light does not reach, and therefore, the material does not cure.<br>For this reason, dual curing, which combines heat curing or moisture curing, is often used when there are shadowed or shaded areas.<br>However, dual curing has the following problems\u2026<\/p>\n\n\n\n<ul><li>Additional heating process is required for thermosetting, and it cannot be used for heat-sensitive materials.<\/li><li>When moisture curing is used, curing time is long and may take nearly a week.<\/li><\/ul>\n\n\n\n<p>Therefore, we decided to form a project team to study the solution to this issue.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3>Introduction of Developed Product<\/h3>\n\n\n\n<p>\u3000As a result of the project team&#8217;s study, test results showed that curing is possible with UV irradiation alone, even in the presence of approximately 5 to 10 mm of light shading (shadow or dark areas) (see the figure below).<br>We are planning to study the improvement of the adhesion and various reliability tests for practical use in the future.<\/p>\n\n\n\n<div class=\"wp-container-2 wp-block-columns\">\n<div class=\"wp-container-1 wp-block-column\"><\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-296x244.jpg\" alt=\"\" class=\"wp-image-2751\" width=\"276\" height=\"228\" srcset=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-296x244.jpg 296w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-768x632.jpg 768w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-1536x1264.jpg 1536w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-260x214.jpg 260w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1-282x232.jpg 282w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/Test-Results-1.jpg 2029w\" sizes=\"(max-width: 276px) 100vw, 276px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"447\" height=\"244\" src=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3-447x244.png\" alt=\"\" class=\"wp-image-2797\" srcset=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3-447x244.png 447w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3-768x419.png 768w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3-304x166.png 304w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3-282x154.png 282w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/physical-properties-table-3.png 1238w\" sizes=\"(max-width: 447px) 100vw, 447px\" \/><\/figure><\/div>\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3>Examples of Uses<\/h3>\n\n\n\n<ul><li>Bonding of enclosures, boss parts, etc.<\/li><li>Sealing and molding related to electronic components<\/li><li>Fixing of coil ends<\/li><li>Bonding of O-rings for various seals, film con<\/li><li>Optical applications such as OCR<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"467\" height=\"244\" src=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1-467x244.png\" alt=\"\" class=\"wp-image-2803\" srcset=\"https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1-467x244.png 467w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1-768x401.png 768w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1-304x159.png 304w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1-282x147.png 282w, https:\/\/www.pelnox.co.jp\/blog\/wp-content\/uploads\/2022\/08\/you-must-have-these-problems-1.png 1215w\" sizes=\"(max-width: 467px) 100vw, 467px\" \/><\/figure><\/div>\n\n\n<div class=\"wp-container-4 wp-block-group\"><div class=\"wp-block-group__inner-container\">\n<p class=\"has-text-align-right has-small-font-size\">Author\uff1a Mr. Yasunaga, Development 1 Group; Mr. Watanabe, IV Strategy Unit<\/p>\n\n\n\n<div class=\"wp-container-3 wp-block-buttons\">\n<div class=\"wp-block-button aligncenter has-custom-font-size is-style-fill has-medium-font-size\"><a class=\"wp-block-button__link has-vivid-cyan-blue-background-color has-background\" href=\"mailto:yamamura@pelnox.co.jp?subject=UV Curing Adhesive Inquiries(BLOG)&amp;body=Please provide the following information%0D%0A\u25c6Name%0D%0A\u25c6Your Company Name%0D%0A\u25c6Inquiry Details\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Email us here<\/strong><\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<h3>Inquiries about developed products<\/h3>\n\n\n\n<p>If you have a sample request, please fill out the <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.pelnox.co.jp\/en\/inquiry\" data-type=\"URL\" data-id=\"https:\/\/www.pelnox.co.jp\/en\/inquiry\" target=\"_blank\">contact form<\/a><\/strong>.<br>A representative will contact you shortly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Development Opportunity Request for shorter curing time for thermosetting resin products \u3000In recent years, cos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":278,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[33],"tags":[],"_links":{"self":[{"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/posts\/2722"}],"collection":[{"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/comments?post=2722"}],"version-history":[{"count":37,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/posts\/2722\/revisions"}],"predecessor-version":[{"id":2849,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/posts\/2722\/revisions\/2849"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/media\/278"}],"wp:attachment":[{"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/media?parent=2722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/categories?post=2722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pelnox.co.jp\/blog\/wp-json\/wp\/v2\/tags?post=2722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}