{"id":3779,"date":"2021-10-02T13:39:29","date_gmt":"2021-10-02T05:39:29","guid":{"rendered":"https:\/\/fuhtai.com\/epdm\/"},"modified":"2024-11-07T16:42:32","modified_gmt":"2024-11-07T08:42:32","slug":"epdm","status":"publish","type":"page","link":"https:\/\/fuhtai.com\/en\/epdm\/","title":{"rendered":"EPDM"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-background-color:#f7f8f9;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1310.4px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:20px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-three\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:20px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:28;--minFontSize:28;line-height:1.3;\">EPDM<\/h3><\/div><div class=\"fusion-text fusion-text-1\" style=\"--awb-margin-right:10px;\"><ul>\n<li>introduce:<br \/>\nEPM (<span style=\"color: #ff0000;\">E<\/span>thylene-<span style=\"color: #ff0000;\">P<\/span>ropylene Rubber)It is a copolymer of ethylene and propylene and has great stability, ozone resistance, aging resistance, and heat resistance. However, it cannot add sulfur and can only be bridged by peroxide. In order to solve this shortcoming, a small amount of a third component with a double bond (diene) is introduced into the EPM chain during the polymerization process, and sulfur can be added. This is EPDM<\/li>\n<li>Characteristics:<br \/>\n<table border=\"0\" width=\"630\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td width=\"365\" height=\"17\">Advantage:<\/td>\n<td width=\"264\" height=\"17\">Shortcoming:<\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">1) Excellent ozone resistance, better than CR, IIR\n<\/td>\n<td width=\"264\" height=\"17\">1) Bloom is prone to occur on the surface of vulcanized rubber<\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">2) Good weather resistance, suitable for outdoor environments<\/td>\n<td width=\"264\" height=\"17\">2) Oil resistance, poor bending and crack resistance<\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">3) Very good heat resistance, can reach high temperature of 150\u00b0C<\/td>\n<td width=\"264\" height=\"17\">3) Unsulfur-added raw wood has poor adhesion<\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">4) Good electrical characteristics, corona resistance<\/td>\n<td width=\"264\" height=\"17\"><\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">5) Very stable to polar solvents (alcohols, ketones), hydrochloric acid and other inorganic drugs<\/td>\n<td width=\"264\" height=\"17\"><\/td>\n<\/tr>\n<tr>\n<td width=\"365\" height=\"17\">6) Excellent mixing with oil and carbon black, high filling is possible<\/td>\n<td width=\"264\" height=\"17\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>Classification:<br \/>\nCommercially available ethylene propylene rubber can be divided into EPM and EPDM according to the presence or absence of the third component. EPDM can be divided into ENB (<span style=\"color: #ff0000;\">E<\/span>thylidene <span style=\"color: #ff0000;\">n<\/span>or<span style=\"color: #ff0000;\">b<\/span>ornen) and DCPD (<span style=\"color: #ff0000;\">D<\/span>icy<span style=\"color: #ff0000;\">c<\/span>lo <span style=\"color: #ff0000;\">p<\/span>enta<span style=\"color: #ff0000;\">d<\/span>iene) according to the third component type. The level of ENB composition is related to the speed of vulcanization, that is, the higher the ENB, the faster the vulcanization rate.Generally, ENB is distinguished from ordinary (about 4% ENB), fast (about 6% ENB), and extremely fast (about 8% ENB). % Or higher) three categories<\/li>\n<li>use<br \/>\nBased on EPM\/EPDM, which has good weather resistance and other excellent physical properties, it is widely used in vehicle parts, building materials, wires and cables, and various industrial rubber products.<\/li>\n<li>Manufacturer:<br \/>\nThere is currently no manufacturer in Taiwan that produces EPM\/EPDM, and the raw materials required are all imported.<span style=\"color: #ff0000;\">              <\/span><\/p>\n<table border=\"1\" width=\"100%\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td width=\"17%\" height=\"18\">\n<p align=\"center\">Trade Names<\/p>\n<\/td>\n<td width=\"83%\" height=\"18\">\n<p align=\"center\">brand name<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">USA DuPont<\/td>\n<td width=\"83%\" height=\"21\"> NORDEL NDR4640,NDR4520,NDR3725, NDR 4770&#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">USA DSM<\/td>\n<td width=\"83%\" height=\"21\"> KELTAN 520,720,512,514,512X50&#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">USA UniRoyal<\/td>\n<td width=\"83%\" height=\"21\"> ROYALENE 301(DCP),501,505,509,535,3345(75 phr \u6cb9),637(100 phr \u6cb9)&#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">USA Exxon<\/td>\n<td width=\"83%\" height=\"21\"> VISTALON 6505,3666,3777(75 phr \u6cb9),V6505,V2504&#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">Japan JSR<\/td>\n<td width=\"83%\" height=\"21\"> EP22, EP33, EP35, EP65, EP75F &#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">Japan MITSUI<\/td>\n<td width=\"83%\" height=\"21\"> EPT 4045,4070,3062E(20 phr\u6cb9),8075E(20 phr\u6cb9)<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"21\">Japan Sumitomo<\/td>\n<td width=\"83%\" height=\"21\"> ESPRENE 400(DCP),505,505A,522,601(70 phr \u6cb9),606(100 phr \u6cb9)&#8230;.<\/td>\n<\/tr>\n<tr>\n<td width=\"17%\" height=\"22\">Germany Bayer<\/td>\n<td width=\"83%\" height=\"22\"> POLYSAR 585,345,847XP,965,6463(50 phr Oil),5465(100 phr Oil)&#8230;.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;width:100%;\"><div class=\"fusion-separator-border sep-shadow\" style=\"--awb-height:20px;--awb-amount:20px;background:radial-gradient(ellipse at 50% -50% , #e0dede 0px, rgba(255, 255, 255, 0) 80%) repeat scroll 0 0 rgba(0, 0, 0, 0);background:-webkit-radial-gradient(ellipse at 50% -50% , #e0dede 0px, rgba(255, 255, 255, 0) 80%) repeat scroll 0 0 rgba(0, 0, 0, 0);background:-moz-radial-gradient(ellipse at 50% -50% , #e0dede 0px, rgba(255, 255, 255, 0) 80%) repeat scroll 0 0 rgba(0, 0, 0, 0);background:-o-radial-gradient(ellipse at 50% -50% , 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