{"id":15804,"date":"2024-09-23T09:40:38","date_gmt":"2024-09-23T06:10:38","guid":{"rendered":"https:\/\/imenpol.com\/blog\/en\/?p=15804"},"modified":"2024-12-30T12:50:56","modified_gmt":"2024-12-30T09:20:56","slug":"types-of-polyurethane-sandwich-panels-2","status":"publish","type":"post","link":"https:\/\/imenpol.com\/blog\/en\/educational\/types-of-polyurethane-sandwich-panels-2\/","title":{"rendered":"Types of polyurethane sandwich panels"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15804\" class=\"elementor elementor-15804\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61edf14 e-flex e-con-boxed e-con e-parent\" data-id=\"61edf14\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7191e04 content-table elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"7191e04\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;container&quot;:&quot;.table-contents&quot;,&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h6 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of contents\t\t\t<\/h6>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__7191e04\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__7191e04\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\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<div class=\"elementor-element elementor-element-62d24ad  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"62d24ad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6889dc elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a6889dc\" 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>Sandwich panels are one of the most economical insulation solutions, with greater durability, shorter installation time, less need for maintenance and greater capacity for acoustic and thermal insulation. In addition,\u00a0they can be adapted to all building needs and typologies, with different types of panels\u00a0for each case.<\/p><p>\u00a0<\/p><h2><strong>Types of panels<\/strong><strong> according to the application<\/strong><\/h2><h3><strong>Sandwich panels for roofs<\/strong><\/h3><p>In this case, the panels are highly exposed to the action of rain, snow or wind, as well as to their weights. They are installed\u00a0on roofs and decks of all types of buildings, although they are most commonly used on roofs with a minimum slope of 7%.<\/p><p>Their installation is usually combined with\u00a0watertight joints, which makes installation quick and easy and does not reduce the insulation of the roof.\u00a0Self-drilling screws\u00a0are also used to fix them to the structure, and sealing systems are used to prevent water seepage.<\/p>\t\t\t\t\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<div class=\"elementor-element elementor-element-e19b83f e-flex e-con-boxed e-con e-parent\" data-id=\"e19b83f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56aaed6 elementor-widget elementor-widget-image\" data-id=\"56aaed6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"466\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-roofs.jpg\" class=\"attachment-full size-full wp-image-15808\" alt=\"\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-roofs.jpg 800w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-roofs-300x175.jpg 300w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-roofs-768x447.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\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<div class=\"elementor-element elementor-element-998c302  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"998c302\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f99565b elementor-widget elementor-widget-text-editor\" data-id=\"f99565b\" 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<h3><strong>Sandwich panels for facades<\/strong><\/h3><p>The variety of finishes of sandwich panels make them a very popular choice for facades. They have the advantage that\u00a0the final result is very aesthetic\u00a0because the fixings are hidden. Other advantages are their\u00a0lightness, modularity and high insulation performance.<\/p><p>This type of panels is mainly used to insulate facades and walls, as well as interior walls. They are suitable for industrial buildings, sports centers, residential and public buildings.<\/p>\t\t\t\t\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<div class=\"elementor-element elementor-element-978b33e e-flex e-con-boxed e-con e-parent\" data-id=\"978b33e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ed2302 elementor-widget elementor-widget-image\" data-id=\"9ed2302\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"521\" height=\"435\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-facades.png\" class=\"attachment-full size-full wp-image-15809\" alt=\"\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-facades.png 521w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/polyurethane-sandwich-panels-for-facades-300x250.png 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/>\t\t\t\t\t\t\t\t\t\t\t\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<div class=\"elementor-element elementor-element-4d120af  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"4d120af\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4002abe elementor-widget elementor-widget-text-editor\" data-id=\"4002abe\" 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<h3><strong>Refrigeration panels<\/strong><\/h3><p>The panels are also used to\u00a0insulate temperature-controlled spaces, such as cold rooms or freezers. In fact, refrigeration, food safety and food waste are intimately related. Perishable foods should be kept refrigerated or frozen throughout the entire supply chain.<\/p><p>\u00a0To allow transportation without damaging the merchandise, refrigeration or freezing temperatures have to be kept constant even when external temperatures vary markedly, so features such as a high insulation value and hygiene are just as critical as light weight, a high loading capacity and ease of unloading. Containers insulated with rigid polyurethane foam are used almost exclusively nowadays on account of the excellent properties of this material. Polyurethane is also being used more and more as a core material for sandwich panels for refrigerated vehicles. High mechanical strength, high insulating efficiency and economical production are combined in this core material.\u00a0 These properties have to be maintained throughout the service life of the product, which often exceeds 15 years.<\/p>\t\t\t\t\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<div class=\"elementor-element elementor-element-0f6441c e-flex e-con-boxed e-con e-parent\" data-id=\"0f6441c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aed7167 elementor-widget elementor-widget-image\" data-id=\"aed7167\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"640\" height=\"525\" src=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/refrigerated-truck.jpg\" class=\"attachment-full size-full wp-image-15810\" alt=\"\" srcset=\"https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/refrigerated-truck.jpg 640w, https:\/\/imenpol.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2024\/09\/refrigerated-truck-300x246.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\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<div class=\"elementor-element elementor-element-ed82180  table-contents e-flex e-con-boxed e-con e-parent\" data-id=\"ed82180\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e657307 elementor-widget elementor-widget-text-editor\" data-id=\"e657307\" 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>In the last paper, we talked about sandwich panel structures in roofs and facades; in the following paper, refrigerated trucks is going to be discussed.<\/p><p>\u00a0<\/p><h3><strong>Polyurethane for refrigerated trucks<\/strong><\/h3><p>The walls, floors, ceilings and doors of these trucks contain an insulating material that separates the interior temperature from that of the exterior.\u00a0Polyurethane<strong> \u200b<\/strong>is a material widely used to achieve the necessary thermal stability.\u00a0As a matter of fact, among different insulating materials (such as cellulose, mineral wool and fiberglass), PU has the\u200b\u00a0lowest coefficient of thermal conductivity\u200b.<\/p><p>The panels are heat cured in the molds to form a rigid sandwich panel which has high strength and excellent insulation property. The material for sheet metal is galvanized steel which is pre painted and has layer of polythene on top. This gives the panel great insulation and is completely rust resistant properties.<\/p><p>Insulation properties are usually measured by R-Values. R- Value is a relationship between thickness of material and the transfer of heat per unit area. Consequently, for a correct installation of the insulating material, the most suitable thickness must be calculated. To do this, various factors must be taken into account, such as:<\/p><ul><li>The ideal internal temperature<\/li><li>The type of products to be transported<\/li><li>How many times the doors will be opened<\/li><li>How the air will circulate<\/li><li>The total weight of the products<\/li><li>The loss of heat<\/li><li>Density of the chosen material<\/li><\/ul><p>\u00a0<\/p><h3><strong>Manufacturing process for refrigerated trucks<\/strong><\/h3><p>There are basically two methods of PU sandwich panel production process, namely continuous production and discontinuous production. The way of applying foaming material on the surface of metal parts can be done by:<\/p><ul><li>Injection of polyurethane<\/li><\/ul><p>This method, is a process by which the metal sheets are filled with the insulating material.\u00a0 The discontinuous process\u00a0is suitable for low production volume and it is an excellent insulating solution for refrigerated trucks. Unlike discontinuous production, the continuous process is suitable for enterprises with high output requirements; PU foam is continuously injected on the upper and lower surface materials that are formed at a uniform speed. After polymerization occurs there, and the sandwich panel is fully formed, the cutting is performed to the expected length.<\/p><p>\u00a0<\/p><p>To sum up, the significant growth in cold chain infrastructure is directly tied to a need for more refrigerated trucks on the road. Rigid polyurethane foam is an essential component for refrigerated truck bodies and used by leading manufacturers worldwide to make thermal efficiency and climate control possible.\u00a0Polyurethane foam offers excellent insulation value that is superior to traditional materials.<\/p>\t\t\t\t\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>Sandwich panels are one of the most economical insulation solutions, with greater durability, shorter installation time, less need for maintenance and greater capacity for acoustic and thermal insulation. <\/p>\n","protected":false},"author":4,"featured_media":15806,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[61,79,85,31,81],"class_list":["post-15804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-educational","tag-energy-conservation","tag-insulation","tag-polyurethane-foam-articles","tag-rigid-foam-articles","tag-sandwich-panel-insulation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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