{"id":11933,"date":"2026-09-16T09:54:15","date_gmt":"2026-09-16T07:54:15","guid":{"rendered":"https:\/\/www.adesiviesigillanti.it\/issue-2-2026\/5-fraunhofer-3-26\/"},"modified":"2026-09-16T15:31:43","modified_gmt":"2026-09-16T13:31:43","slug":"5-fraunhofer-eng-3-26","status":"publish","type":"page","link":"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/5-fraunhofer-eng-3-26\/","title":{"rendered":"5-FRAUNHOFER eng 3-26"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"11933\" class=\"elementor elementor-11933 elementor-11745\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6964fe9 e-flex e-con-boxed e-con e-parent\" data-id=\"6964fe9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-34f62b8 e-con-full e-flex e-con e-child\" data-id=\"34f62b8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b22916 elementor-widget elementor-widget-heading\" data-id=\"1b22916\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Microencapsulated adhesives -\nBonding at the push of a button<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3153df1 elementor-widget elementor-widget-text-editor\" data-id=\"3153df1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5 style=\"text-align: center\"><span style=\"color: #000000\"><strong>Christian Neumann<br \/>FRAUNHOFER IAP<\/strong><\/span><\/h5>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-73b941a elementor-widget elementor-widget-text-editor\" data-id=\"73b941a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1\">Microcapsules containing a reactive two-component adhesive can simplify bonding processes in industry and assembly while improving occupational safety: the adhesive is initially safely enclosed in capsules, contact with exposed reactive components can be reduced, and activation takes place only during pressing at room temperature.<br \/>The Fraunhofer Institute for Applied Polymer Research IAP in Potsdam Science Park is looking for partners from industry and research who would like to contribute specific components, carrier materials or assembly processes for application-oriented testing.<br \/>Bonding joins components over large surface areas, brings together different materials and enables lightweight designs. In industrial practice, however, applying adhesive is often an additional process step: adhesives have to be dosed, applied and cured. Direct handling of reactive adhesive components can also place additional demands on occupational safety, process management and training.<br \/>Depending on the material system, temperature, substrate and load, the adhesive effect of conventional adhesive tapes may also change.<br \/><br \/><\/p><figure id=\"attachment_11650\" aria-describedby=\"caption-attachment-11650\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-11650 size-full no-lazyload\" src=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-1-FRAUNHOFER.jpg\" alt=\"\" width=\"1024\" height=\"720\" srcset=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-1-FRAUNHOFER.jpg 1024w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-1-FRAUNHOFER-300x211.jpg 300w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-1-FRAUNHOFER-768x540.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-11650\" class=\"wp-caption-text\"><strong>The adhesive effect of the adhesive capsules can be tested directly using the demonstrator<\/strong><\/figcaption><\/figure><p class=\"p1\"><i><br \/><\/i><span style=\"color: #f0d30a\"><strong>HOW DOES PRESSURE BECOME ADHESIVE STRENGTH?<br \/><\/strong><\/span>A new approach based on microencapsulation is intended to simplify these steps. At Fraunhofer IAP, researchers are developing microscopic capsules that contain the components of a two-component adhesive as part of the Fraunhofer Cluster of Excellence Programmable Materials CPM. \u201cYou can think of the microcapsules as many tiny reservoirs for adhesive\u201d, says Dr. Christian Neumann, scientist at Fraunhofer IAP. Each capsule contains one of the two components. As long as the capsules remain intact, the system remains inactive. When pressure is applied, the capsules burst. The components come into contact and the adhesive crosslinks. This creates a strong bond precisely at the contact surface. \u201cA major advantage is that this crosslinking takes place at room temperature. Additional heating or further curing steps are therefore not required\u201d, says Neumann.<br \/>The technical challenge lies in the encapsulation itself: two-component adhesives are reactive materials and can react with the chemicals used during production of the capsule shell. However, the researchers can adjust the capsule chemistry with great precision. As a result, the adhesive components remain active, are reliably enclosed, can be stored and processed, and open in a targeted manner during pressing.<\/p><p class=\"p2\"><strong><span style=\"color: #f0d30a\">WHICH TWO FACTORS MAKE HANDLING THE ADHESIVE SAFER?<br \/><\/span><\/strong>\u201cFor industrial applications, it is crucial that the adhesive is initially safely enclosed\u201d, says Neumann. \u201cThis means employees come into less direct contact with reactive components, as activation only takes place during the joining step\u201d.<br \/>For industrial bonding processes, the approach combines two advantages. First, encapsulation reduces open handling of adhesives: the reactive components are released in the bond line only during joining. This can simplify handling and support occupational safety during processing.<br \/>Second, the researchers are focusing on isocyanatefree adhesive systems based on acrylates or epoxies. This makes the capsule and carrier system interesting for applications in which companies want to avoid using adhesives containing isocyanates.<br \/><br \/><\/p><p><img decoding=\"async\" class=\"aligncenter size-full wp-image-11652 no-lazyload\" src=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-2-FRAUNHOFER.jpg\" alt=\"\" width=\"1024\" height=\"512\" srcset=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-2-FRAUNHOFER.jpg 1024w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-2-FRAUNHOFER-300x150.jpg 300w, https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/FOTO-2-FRAUNHOFER-768x384.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p><p class=\"p1\"><br \/><strong><span style=\"color: #f0d30a\">HOW IS ADHESIVE FABRIC USED?<br \/><\/span><\/strong>In the next step, the microcapsules are to be applied to sheet-like carrier materials that can be processed like an interlayer material. Suitable options include textile carriers, fibre scrims or other sheet-like materials. \u201cThis turns the adhesive into a manageable material: it can be positioned in the component and only develops its effect during the joining step\u201d, explains Neumann.<br \/>Possible fields of application include processes in which components need to be bonded or joined over large areas, in a controlled manner and without open adhesive application. In the automotive industry, for example, battery stacks are a possible use case. Other fields of application include mechanical engineering, electronics manufacturing and microstructured components with fine channels, where conventional dosing and application methods are technically complex, difficult to access or economically unattractive.<br \/>To develop these adhesive textiles, Fraunhofer IAP combines its expertise in microencapsulation with application-oriented testing. The strength of the resulting bonds is being investigated together with the Fraunhofer Institute for Machine Tools and Forming Technology IWU and forms the basis for assessing suitable fields ofappli cation with partners in a targeted way.<\/p><p class=\"p1\"><strong><span style=\"color: #f0d30a\">READY FOR PRACTICAL TESTING?<br \/><\/span><\/strong>The approach is now to be transferred to concrete applications. To this end, Fraunhofer IAP is looking for partners from industry and research who can contribute their own components, carrier materials or assembly processes. Companies that want to simplify sheet-like joining processes, make the handling of adhesives safer or integrate the bonding process more effectively into existing assembly workflows are particularly relevant. \u201cTogether, we can examine whether the capsule and carrier system can be adapted to specific requirements and what quantities of material are needed for application-oriented testing\u201d, says Neumann.<br \/>If a partner contributes a suitable use case, Fraunhofer IAP will tailor the capsule and carrier system specifically to it. At the synthesis pilot plant of the Fraunhofer Pilot Plant Center for Polymer Synthesis and Processing PAZ at Fraunhofer IAP, microcapsules can also be produced on a scale of up to several tonnes. This means sufficient quantities of material are available to test the technology under application-oriented conditions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f66b61a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f66b61a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6dc7001 elementor-widget elementor-widget-text-editor\" data-id=\"6dc7001\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5 style=\"text-align: center\"><a href=\"https:\/\/www.adesiviesigillanti.it\/wp-content\/uploads\/2026\/09\/5_FRAUNHOFER_ADESIVI.pdf\"><strong><span style=\"color: #f0d30a\">DOWNLOAD THE PDF FILE<\/span><\/strong><\/a><\/h5>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b8ac936 e-con-full e-flex e-con e-child\" data-id=\"b8ac936\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-54d7a98e elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"54d7a98e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Other content<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2399bae8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2399bae8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dd03962 elementor-widget elementor-widget-heading\" data-id=\"2dd03962\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/1-mascherpa-eng-3-26\/\">EMANUELE MASCHERPA SPA<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7305cdb4 elementor-widget elementor-widget-heading\" data-id=\"7305cdb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/1-mascherpa-eng-3-26\/\">Sealing and bonding railway carriage floors\nwith high-performance\ntwo-component adhesives<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39d0bdc7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"39d0bdc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2712ad94 elementor-widget elementor-widget-heading\" data-id=\"2712ad94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/2-ch-bioforce-eng-3-26\/\">CH-BIOFORCE<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-252935c7 elementor-widget elementor-widget-heading\" data-id=\"252935c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/2-ch-bioforce-eng-3-26\/\">Lignin as promising building blocks\nfor pressure-sensitive adhesives<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b343a31 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1b343a31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-101a17d6 elementor-widget elementor-widget-heading\" data-id=\"101a17d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/3-universita-di-trento-eng-3-26\/\">UNIVERSIT\u00c0 DI TRENTO<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67c3ff6d elementor-widget elementor-widget-heading\" data-id=\"67c3ff6d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/3-universita-di-trento-eng-3-26\/\">Development of novel self-healing adhesives\nfor potential use in wind turbine blades<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9be0674 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"9be0674\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span 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href=\"https:\/\/www.adesiviesigillanti.it\/en\/issue-2-2026\/4-kiilto-eng-3-26\/\">New polyurethane adhesives match\nthe pace of sandwich panel manufacturing\nfor the transportation industry<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-894982d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"894982d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Microencapsulated adhesives &#8211; Bonding at the push of a button Christian NeumannFRAUNHOFER IAP Microcapsules containing a reactive two-component adhesive can simplify bonding processes in industry and assembly while improving occupational safety: the adhesive is initially safely enclosed in capsules, contact with exposed reactive components can be reduced, and activation takes place only during pressing at [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":11203,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-11933","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>5-FRAUNHOFER eng 3-26 - Adesivi &amp; Sigillanti<\/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.adesiviesigillanti.it\/en\/issue-2-2026\/5-fraunhofer-eng-3-26\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" 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