{"id":6317,"date":"2024-10-30T15:40:05","date_gmt":"2024-10-30T07:40:05","guid":{"rendered":"https:\/\/rilong-mold.com\/?p=6317"},"modified":"2024-10-30T15:40:06","modified_gmt":"2024-10-30T07:40:06","slug":"plastic-material-pbt-and-its-properties","status":"publish","type":"post","link":"https:\/\/rilong-mold.com\/de\/plastic-material-pbt-and-its-properties\/","title":{"rendered":"Kunststoffmaterial PBT und seine Eigenschaften"},"content":{"rendered":"<div class=\"wp-block-greenshift-blocks-iconlist gspb_iconsList gspb_iconsList-id-gsbp-4bfb9b6\" id=\"gspb_iconsList-id-gsbp-4bfb9b6\"><div class=\"gspb_iconsList__item\" data-id=\"0\"><svg class=\"\" style=\"display:inline-block;vertical-align:middle\" width=\"18\" height=\"18\" viewbox=\"0 0 1024 1024\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M871.696 166.932l-526.088 526.088-193.304-193.304c-9.372-9.372-24.568-9.372-33.942 0l-56.568 56.568c-9.372 9.372-9.372 24.568 0 33.942l266.842 266.842c9.372 9.372 24.568 9.372 33.942 0l599.626-599.626c9.372-9.372 9.372-24.568 0-33.942l-56.568-56.568c-9.372-9.372-24.568-9.372-33.94 0z\"><\/path><\/svg><span class=\"gspb_iconsList__item__text\">PBT Polybutylene Terephthalate<br><br><strong>1. Properties of PBT:<\/strong><br>PBT is one of the most rigid engineering thermoplastic materials, it is a semi-crystalline material with excellent chemical stability, mechanical strength, electrical insulation properties, and thermal stability. These materials have good stability in a wide range of environmental conditions, and PBT has a very weak\u5438\u6e7f characteristic. The tensile strength of the unreinforced PBT is 50MPa, and the tensile strength of the glass-filled PBT is 170MPa. Too much glass addition will make the material brittle.<br>The crystallization of PBT is very fast, which will cause bending deformation due to uneven cooling. For the glass-filled type materials, the shrinkage in the flow direction can be reduced, but the shrinkage perpendicular to the flow direction is basically the same as that of the ordinary materials.<br>The general shrinkage rate is between 1.5% and 2.8%. The shrinkage of the material containing 30% glass addition is between 0.3% and 1.6%. The melting point (225\u2103) and high-temperature deformation temperature are lower than those of PET materials. The Vicat softening temperature is about 170\u2103. The glass transition temperature (glass trasitiotemperature) is between 22\u2103 and 43\u2103.<br>Because of the high crystallization speed of PBT, its viscosity is very low, and the cycle time of plastic parts processing is generally also lower.<\/span><\/div><div class=\"gspb_iconsList__item\" data-id=\"1\"><svg class=\"\" style=\"display:inline-block;vertical-align:middle\" width=\"18\" height=\"18\" viewbox=\"0 0 1024 1024\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M871.696 166.932l-526.088 526.088-193.304-193.304c-9.372-9.372-24.568-9.372-33.942 0l-56.568 56.568c-9.372 9.372-9.372 24.568 0 33.942l266.842 266.842c9.372 9.372 24.568 9.372 33.942 0l599.626-599.626c9.372-9.372 9.372-24.568 0-33.942l-56.568-56.568c-9.372-9.372-24.568-9.372-33.94 0z\"><\/path><\/svg><span class=\"gspb_iconsList__item__text\"><br><strong>2. Processing characteristics of PBT<\/strong><br>Drying treatment: This material is easily hydrolyzed at high temperatures, so drying treatment before processing is very important. The recommended drying conditions in air are 120\u2103\uff0c 6-8 hours, or 150\u2103\uff0c 2-4 hours.<br>The moisture content must be less than 0.03%. If drying is performed using a desiccant dryer, the recommended conditions are 150\u2103\uff0c 2.5 hours. The processing temperature is 225~275\u2103\uff0c and the recommended temperature is 250\u2103. For the unreinforced material, the mold temperature is 40~60<\/span><\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"404\" height=\"291\" src=\"http:\/\/rilong-mold.com\/wp-content\/uploads\/2024\/10\/\u5fae\u4fe1\u622a\u56fe_20241030153547.jpg\" alt=\"\" class=\"wp-image-6318\" srcset=\"https:\/\/rilong-mold.com\/wp-content\/uploads\/2024\/10\/\u5fae\u4fe1\u622a\u56fe_20241030153547.jpg 404w, https:\/\/rilong-mold.com\/wp-content\/uploads\/2024\/10\/\u5fae\u4fe1\u622a\u56fe_20241030153547-300x216.jpg 300w\" sizes=\"auto, (max-width: 404px) 100vw, 404px\" \/><\/figure>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":8,"featured_media":6318,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList .gspb_iconsList__item__text{margin-left:15px}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList .gspb_iconsList__item{display:flex;flex-direction:row;align-items:center;position:relative}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList .gspb_iconsList__item svg path{fill:var(--theme-link-initial-color, #2184f9)!important}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='0'] svg,#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='0'] svg path{fill:#01d486!important}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='0'] svg,body #gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList .gspb_iconsList__item img,body #gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList .gspb_iconsList__item svg{margin:0!important}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='1'] svg,#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='1'] svg path{fill:#01d486!important}#gspb_iconsList-id-gsbp-4bfb9b6.gspb_iconsList [data-id='1'] svg{margin:0!important}","kk_blocks_editor_width":"","_kiokenblocks_attr":"","_kiokenblocks_dimensions":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-6317","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/posts\/6317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/comments?post=6317"}],"version-history":[{"count":0,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/posts\/6317\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/media\/6318"}],"wp:attachment":[{"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/media?parent=6317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/categories?post=6317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rilong-mold.com\/de\/wp-json\/wp\/v2\/tags?post=6317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}