{"id":155,"date":"2026-03-24T13:00:22","date_gmt":"2026-03-24T04:00:22","guid":{"rendered":"https:\/\/www.djklab.com\/en\/?page_id=155"},"modified":"2026-03-24T13:21:53","modified_gmt":"2026-03-24T04:21:53","slug":"cross-linked-vulcanized-rubber","status":"publish","type":"page","link":"https:\/\/www.djklab.com\/en\/service\/brda\/cross-linked-vulcanized-rubber\/","title":{"rendered":"Cross-linked (Vulcanized) rubber"},"content":{"rendered":"<h3>\u25a0Cross-linked (Vulcanized) rubber<\/h3>\r\nIt is started to use vulcanized rubber after Goodyear found that natural rubber could be cured by sulfur in 1839.<br \/>\r\nRubber compounding technology made substantial progress in the 1900s because Oenslager found vulcanization accelerator and carbon reinforcement effect.<br \/>\r\nAfter people made all kinds of efforts, more recently, the rubber formulation which blends silica (white carbon) attracts attention as a material of fuel-efficient tires.<br \/><br \/>\r\nDJK is entrusted with prototyping compounding rubber and vulcanized rubber and evaluating their physical properties in general rubber formulations. We can evaluate the rubber compounding ingredients such as feedstocks and additive agents.<br \/><br \/>\r\n<table style=\"border-collapse: collapse; width: 100%;\"><caption>outsourcing researches and testing services of DJK related to cross-linked (vulcanized) rubber<\/caption>\r\n<tbody>\r\n<tr>\r\n<th style=\"width: 25%;\">Items<\/th>\r\n<th style=\"width: 75%;\">Contents<\/th>\r\n<\/tr>\r\n<tr>\r\n<th style=\"width: 25%;\">Evaluation of rubber compounding agents<\/th>\r\n<td style=\"width: 75%;\">\u2023We evaluate the performance of a variety of rubber compounding agents under consideration.<br \/>\r\n\u2023we explore the possibilities of rubber compounding agents on the feedstocks under consideration such as strengthening agents,\r\ninorganic fillers, crosslinking additives, softeners and stabilization agents.<\/td>\r\n<\/tr>\r\n<tr>\r\n<th style=\"width: 25%;\">Production of cross-linked rubber<\/th>\r\n<td style=\"width: 75%;\">\u2023we prepare compounding rubber, and make cross-linked rubber sheets and test specimen.<\/td>\r\n<\/tr>\r\n<tr>\r\n<th style=\"width: 25%;\">Physical properties of cross-linked rubber<\/th>\r\n<td style=\"width: 75%;\">\u2023mechanical characteristics \u2026 durometer hardness, tensile characteristics, compression set<br \/>\r\n\u2023thermal characteristics \u2026 uncured compounded rubber viscosity (Mooney viscosity), curing characteristics (culastometer)<br \/>\r\n\u2023dynamic viscoelasticity<br \/>\r\n\u2023durability<\/td>\r\n<\/tr>\r\n<tr>\r\n<th style=\"width: 25%;\">Consideration of rubber compounding<\/th>\r\n<td style=\"width: 75%;\">\u2023we consider formulation of rubber and elastomer meeting purposes and requirements.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>","protected":false},"excerpt":{"rendered":"\u25a0Cross-linked (Vulcanized) rubber It is started to use vulcanized rubber after Goodyear found that natural rub [&hellip;]","protected":false},"author":1,"featured_media":0,"parent":67,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/pages\/155"}],"collection":[{"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/comments?post=155"}],"version-history":[{"count":4,"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/pages\/155\/revisions"}],"predecessor-version":[{"id":217,"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/pages\/155\/revisions\/217"}],"up":[{"embeddable":true,"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/pages\/67"}],"wp:attachment":[{"href":"https:\/\/www.djklab.com\/en\/wp-json\/wp\/v2\/media?parent=155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}