{"id":9315,"date":"2026-01-27T10:59:15","date_gmt":"2026-01-27T10:59:15","guid":{"rendered":"https:\/\/thermhex.com\/pei-honeycomb-cores\/"},"modified":"2026-04-24T13:27:19","modified_gmt":"2026-04-24T13:27:19","slug":"noyaux-en-nid-dabeille-en-pei","status":"publish","type":"page","link":"https:\/\/thermhex.com\/fr\/noyaux-en-nid-dabeille-en-pei\/","title":{"rendered":"Noyaux en nid d&rsquo;abeille en poly\u00e9therimide"},"content":{"rendered":"<!--themify_builder_content-->\n<div id=\"themify_builder_content-9315\" data-postid=\"9315\" class=\"themify_builder_content themify_builder_content-9315 themify_builder tf_clear\">\n                    <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_ae9f678 tb_first tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_gagc678 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_dgn7678 image-top   tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img decoding=\"async\" src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/01\/PEI-Honeycomb-Core-Copyright-by-ThermHex-2026-scaled-e1769507270809.jpg\" class=\"wp-post-image wp-image-9221\" title=\"PEI Honeycomb Core Copyright by ThermHex 2026\" alt=\"PEI Honeycomb Core Material Picture Copyright by ThermHex 2026.jpg\">    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <\/div>\n<!-- \/module image -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_w6kd286 tf_w\">\n                        <div class=\"row_inner col_align_top tb_col_count_1 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col-full tb_65it286 first\">\n                    <!-- module text -->\n<div  class=\"module module-text tb_9d73286   \" data-lazy=\"1\">\n        <div  class=\"tb_text_wrap\">\n        <div class=\"fusion-text fusion-text-1\">\n<h1><span style=\"font-weight: bold\">PEI honeycomb cores: Sustainable and top-performing<\/span><\/h1>\n<h2><strong>Key points:<\/strong><\/h2>\n<ul>\n<li>Aerospace parts with thermoplastic PEI honeycombs can be weight and cost competitive to conventional thermoset sandwich panels and parts.<\/li>\n<li>ThermHex PEI honeycombs allow an improvement of fire safety and FST performance compared to conventional panels.<\/li>\n<li>Wavy cell wall geometry offers remarkable increase of mechanical performance of PEI honeycombs compared to honeycombs with a hexagonal geometry.<\/li>\n<li>This thermoplastic honeycomb core is thermoforbale and can be processed into 3D sandwich parts using conventional compression moulding<\/li>\n<li>Continuously produced PEI thermoplastic honeycomb is a major step towards reduction of\n<p><sub>CO2<\/sub>-footprint and opens up the path to recyclable aircraft interior panels and parts.<\/p>\n<\/li>\n<\/ul>\n<p>Polyetherimide (PEI) honeycomb cores are thermoplastic cores developed to provide a more sustainable material solution, particularly for aerospace applications or railway interior components, where non-recyclable thermoset phenolic resin honeycombs have been used for a long time. ThermHex PEI honeycomb cores now enable modern industry to use recyclable production materials without compromising on market requirements regarding fire safety, weight and performance. This is because their optimally structured inner geometry drastically increases buckling resistance under out-of-plane compression and shear loads.  <\/p>\n<h3><strong>Key applications of PEI honeycomb cores: aircraft and railway interior<\/strong><\/h3>\n<p>Whilst ThermHex PEI honeycomb cores are produced efficiently using the proven EconCore technology, they offer great potential in terms of increasing production efficiency. This product has been developed with a focus on health, fire safety and the environment.<br>PEI honeycomb cores are typically laminated with fibre-reinforced thermoplastic composites to create a monomaterial, all-thermoplastic and thermoformable sandwich solution. In other cases, this honeycomb core can be laminated with thermoset (e.g. epoxy) prepeg skins allowing for construction of phenolic-free panels.  <\/p>\n<h3><strong>New patent brings key advantages in buckling resistance<\/strong><\/h3>\n<p>Last but not least, a key innovation of this technology is EconCore&rsquo;s new patented ThermHex wavy cell wall, which allows the PEI honeycomb to be brought to the conservative aerospace market. This is because the continuously produced PEI honeycomb has optimally structured wavy cell walls that drastically increase its resistance to buckling under out-of-plane compression and shear loads, which are the key mechanical properties of honeycomb cores. <\/p>\n<p> <\/p>\n<h2><strong>Product Properties<\/strong><\/h2>\n<p>Les propri\u00e9t\u00e9s physiques des noyaux en nid d&rsquo;abeille ThermHex sont principalement d\u00e9finies par les caract\u00e9ristiques suivantes:<\/p>\n<h3><strong>\u00c9paisseur du noyau et taille des cellules<\/strong><\/h3>\n<p>ThermHex PEI honeycomb cores are produced in different core thicknesses and cell sizes. Please refer to data sheets or ask us for avaiable configurations. <\/p>\n<h3><strong>Densit\u00e9<\/strong><\/h3>\n<p>ThermHex PEI honeycomb cores are produced with densities of 48 \u2013 96 kg\/m\u00b3. 32 kg\/m\u00b3 as well as densities above 96 kg\/m\u00b3 are a technological option, too. <\/p>\n<\/div>\n<p> <\/p>\n<h4>Important note on availability<\/h4>\n<p>This product is approaching commercial scale, so it is currently only available in limited quantities to development partners.<\/p>\n<p>Stand of January 2026<\/p>\n<p> <\/p>    <\/div>\n<\/div>\n<!-- \/module text -->        <\/div>\n                        <\/div>\n        <\/div>\n                        <div  data-lazy=\"1\" class=\"module_row themify_builder_row tb_1gh8565 tf_w\">\n                        <div class=\"row_inner col_align_top gutter-narrow tb_col_count_2 tf_box tf_rel\">\n                        <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_km1e565 first\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_ev5y565 image-center drop-shadow  auto_fullwidth tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <a href=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/04\/neu_ThermHex-WH-04-2026-EN-WEB.pdf\" rel=\"noopener\" target=\"_blank\">\n                   <img loading=\"lazy\" decoding=\"async\" width=\"671\" height=\"941\" src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core.png\" class=\"wp-post-image wp-image-7895\" title=\"Brochure and data sheet: ThermHex PEI Honeycomb Cores\" alt=\"Brochure and data sheet: ThermHex PEI Honeycomb Cores\" srcset=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core.png 671w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core-214x300.png 214w\" sizes=\"auto, (max-width: 671px) 100vw, 671px\" \/>        <\/a>\n    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h4 class=\"image-title\">\n                                    <a href=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/04\/neu_ThermHex-WH-04-2026-EN-WEB.pdf\" rel=\"noopener\" target=\"_blank\">\n                        Brochure and data sheet: ThermHex PEI Honeycomb Cores                    <\/a>\n                            <\/h4>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                    <div  data-lazy=\"1\" class=\"module_column tb-column col4-2 tb_5ctd565 last\">\n                    <!-- module image -->\n<div  class=\"module module-image tb_pzoq565 image-center drop-shadow  tf_mw\" data-lazy=\"1\">\n        <div class=\"image-wrap tf_rel tf_mw\">\n            <img loading=\"lazy\" decoding=\"async\" width=\"1557\" height=\"1557\" src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1.jpg\" class=\"wp-post-image wp-image-8606\" title=\"Multiple application possiblities for the aerospace industry\" alt=\"Multiple application possiblities for the aerospace industry\" srcset=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1.jpg 1557w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-300x300.jpg 300w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024.jpg 1024w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-150x150.jpg 150w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-768x768.jpg 768w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1536x1536.jpg 1536w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024-47x48.jpg 47w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024-200x200.jpg 200w\" sizes=\"auto, (max-width: 1557px) 100vw, 1557px\" \/>    \n        <\/div>\n    <!-- \/image-wrap -->\n    \n        <div class=\"image-content\">\n                    <h3 class=\"image-title\">\n                                    Multiple application possiblities for the aerospace industry                            <\/h3>\n                    <\/div>\n    <!-- \/image-content -->\n        <\/div>\n<!-- \/module image -->        <\/div>\n                        <\/div>\n        <\/div>\n        <\/div>\n<!--\/themify_builder_content-->","protected":false},"excerpt":{"rendered":"<p>PEI honeycomb cores: Sustainable and top-performing Key points: Aerospace parts with thermoplastic PEI honeycombs can be weight and cost competitive to conventional thermoset sandwich panels and parts. ThermHex PEI honeycombs allow an improvement of fire safety and FST performance compared to conventional panels. Wavy cell wall geometry offers remarkable increase of mechanical performance of PEI [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9315","page","type-page","status-publish","hentry","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"builder_content":"<img src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/01\/PEI-Honeycomb-Core-Copyright-by-ThermHex-2026-scaled-e1769507270809.jpg\" title=\"PEI Honeycomb Core Copyright by ThermHex 2026\" alt=\"PEI Honeycomb Core Material Picture Copyright by ThermHex 2026.jpg\">\n<h1>PEI honeycomb cores: Sustainable and top-performing<\/h1> <h2><strong>Key points:<\/strong><\/h2> <ul> <li>Aerospace parts with thermoplastic PEI honeycombs can be weight and cost competitive to conventional thermoset sandwich panels and parts.<\/li> <li>ThermHex PEI honeycombs allow an improvement of fire safety and FST performance compared to conventional panels.<\/li> <li>Wavy cell wall geometry offers remarkable increase of mechanical performance of PEI honeycombs compared to honeycombs with a hexagonal geometry.<\/li> <li>This thermoplastic honeycomb core is thermoforbale and can be processed into 3D sandwich parts using conventional compression moulding<\/li> <li>Continuously produced PEI thermoplastic honeycomb is a major step towards reduction of <p><sub>CO2<\/sub>-footprint and opens up the path to recyclable aircraft interior panels and parts.<\/p> <\/li> <\/ul> <p>Polyetherimide (PEI) honeycomb cores are thermoplastic cores developed to provide a more sustainable material solution, particularly for aerospace applications or railway interior components, where non-recyclable thermoset phenolic resin honeycombs have been used for a long time. ThermHex PEI honeycomb cores now enable modern industry to use recyclable production materials without compromising on market requirements regarding fire safety, weight and performance. This is because their optimally structured inner geometry drastically increases buckling resistance under out-of-plane compression and shear loads. <\/p> <h3><strong>Key applications of PEI honeycomb cores: aircraft and railway interior<\/strong><\/h3> <p>Whilst ThermHex PEI honeycomb cores are produced efficiently using the proven EconCore technology, they offer great potential in terms of increasing production efficiency. This product has been developed with a focus on health, fire safety and the environment.<br>PEI honeycomb cores are typically laminated with fibre-reinforced thermoplastic composites to create a monomaterial, all-thermoplastic and thermoformable sandwich solution. In other cases, this honeycomb core can be laminated with thermoset (e.g. epoxy) prepeg skins allowing for construction of phenolic-free panels. <\/p> <h3><strong>New patent brings key advantages in buckling resistance<\/strong><\/h3> <p>Last but not least, a key innovation of this technology is EconCore's new patented ThermHex wavy cell wall, which allows the PEI honeycomb to be brought to the conservative aerospace market. This is because the continuously produced PEI honeycomb has optimally structured wavy cell walls that drastically increase its resistance to buckling under out-of-plane compression and shear loads, which are the key mechanical properties of honeycomb cores. <\/p> <p> <\/p> <h2><strong>Product Properties<\/strong><\/h2> <p>Les propri\u00e9t\u00e9s physiques des noyaux en nid d'abeille ThermHex sont principalement d\u00e9finies par les caract\u00e9ristiques suivantes:<\/p> <h3><strong>\u00c9paisseur du noyau et taille des cellules<\/strong><\/h3> <p>ThermHex PEI honeycomb cores are produced in different core thicknesses and cell sizes. Please refer to data sheets or ask us for avaiable configurations. <\/p> <h3><strong>Densit\u00e9<\/strong><\/h3> <p>ThermHex PEI honeycomb cores are produced with densities of 48 \u2013 96 kg\/m\u00b3. 32 kg\/m\u00b3 as well as densities above 96 kg\/m\u00b3 are a technological option, too. <\/p>\n<p> <\/p> <h4>Important note on availability<\/h4> <p>This product is approaching commercial scale, so it is currently only available in limited quantities to development partners.<\/p> <p>Stand of January 2026<\/p> <p> <\/p>\n<a href=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/04\/neu_ThermHex-WH-04-2026-EN-WEB.pdf\" rel=\"noopener\" target=\"_blank\"> <img src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core.png\" title=\"Brochure and data sheet: ThermHex PEI Honeycomb Cores\" alt=\"Brochure and data sheet: ThermHex PEI Honeycomb Cores\" srcset=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core.png 671w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/02\/PEI-Core-214x300.png 214w\" sizes=\"(max-width: 671px) 100vw, 671px\" \/> <\/a> <h4> <a href=\"https:\/\/thermhex.com\/wp-content\/uploads\/2026\/04\/neu_ThermHex-WH-04-2026-EN-WEB.pdf\" rel=\"noopener\" target=\"_blank\"> Brochure and data sheet: ThermHex PEI Honeycomb Cores <\/a> <\/h4>\n<img src=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1.jpg\" title=\"Multiple application possiblities for the aerospace industry\" alt=\"Multiple application possiblities for the aerospace industry\" srcset=\"https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1.jpg 1557w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-300x300.jpg 300w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024.jpg 1024w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-150x150.jpg 150w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-768x768.jpg 768w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1536x1536.jpg 1536w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024-47x48.jpg 47w, https:\/\/thermhex.com\/wp-content\/uploads\/2025\/05\/ThermHex-PEI-Green-Cabin-Alliance-Picture-16May2025-1557x1557-1-1024x1024-200x200.jpg 200w\" sizes=\"(max-width: 1557px) 100vw, 1557px\" \/> <h3> Multiple application possiblities for the aerospace industry <\/h3>","_links":{"self":[{"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/pages\/9315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/comments?post=9315"}],"version-history":[{"count":12,"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/pages\/9315\/revisions"}],"predecessor-version":[{"id":10041,"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/pages\/9315\/revisions\/10041"}],"wp:attachment":[{"href":"https:\/\/thermhex.com\/fr\/wp-json\/wp\/v2\/media?parent=9315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}