{"id":2549,"date":"2026-06-15T17:24:54","date_gmt":"2026-06-15T09:24:54","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2549"},"modified":"2026-06-30T11:12:43","modified_gmt":"2026-06-30T03:12:43","slug":"tpu-lubrizol-estane-gp72db","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/fr\/materials\/thermoplastic-polyurethane-tpu\/tpu-lubrizol-estane-gp72db\/","title":{"rendered":"TPU-Lubrizol Estane GP72DB"},"content":{"rendered":"<div class=\"material-page-wrapper\" style=\"line-height: 1.7 !important;letter-spacing: 0.03em !important;, Arial, sans-serif !important;color: #333333 !important\">\n<p><!-- 3. \u6750\u6599\u4e0b\u5c5e\u578b\u53f7\u4ecb\u7ecd\uff08\u8868\u683c\uff09 --><\/p>\n<section class=\"material-grades\">\n<h2 style=\"font-size: 26px !important;color: #111111 !important;margin-top: 35px !important;margin-bottom: 18px !important;font-weight: 600 !important;letter-spacing: 0.04em !important\">Duret\u00e9 technique et profil m\u00e9canique de l'Estane GP72DB<\/h2>\n<p style=\"margin-bottom: 18px !important;color: #4a4a4a !important\">L'ESTANE\u00ae GP72DB est un polyur\u00e9thane thermoplastique (TPU) technique \u00e0 base de polyester aromatique con\u00e7u par Lubrizol, destin\u00e9 \u00e0 offrir une r\u00e9sistance m\u00e9canique extr\u00eame, une duret\u00e9 structurelle et une r\u00e9sistance au d\u00e9chirement exceptionnelle selon les normes ASTM :<\/p>\n<table style=\"width: 100% !important;border-collapse: collapse !important;margin-top: 20px !important;margin-bottom: 30px !important;border: 1px solid #b0bec5 !important\">\n<thead>\n<tr>\n<th style=\"background-color: #edf4f9 !important;color: #111111 !important;font-weight: 600 !important;padding: 14px 18px !important;border: 1px solid #b0bec5 !important;text-align: left !important;letter-spacing: 0.04em !important;line-height: 1.7 !important\">Attribut m\u00e9canique<\/th>\n<th style=\"background-color: #edf4f9 !important;color: #111111 !important;font-weight: 600 !important;padding: 14px 18px !important;border: 1px solid #b0bec5 !important;text-align: left !important;letter-spacing: 0.04em !important;line-height: 1.7 !important\">Valeur nominale m\u00e9trique de l'Estane GP72DB<\/th>\n<th style=\"background-color: #edf4f9 !important;color: #111111 !important;font-weight: 600 !important;padding: 14px 18px !important;border: 1px solid #b0bec5 !important;text-align: left !important;letter-spacing: 0.04em !important;line-height: 1.7 !important\">Avantage de moulage dynamique et structurel<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">Duret\u00e9 technique<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Duret\u00e9 Shore 68 Shore D<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Comble l'\u00e9cart de performance, offrant une rigidit\u00e9 m\u00e9canique \u00e9lev\u00e9e et une rigidit\u00e9 semblable \u00e0 celle du plastique, id\u00e9al pour les engrenages porteurs et les glissi\u00e8res structurelles.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">R\u00e9sistance au d\u00e9chirement<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">D\u00e9chirement Graves 240 kN\/m \/ Pantalon 220 kN\/m<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Offre une r\u00e9sistance ultime \u00e0 la propagation du d\u00e9chirement sous contrainte de cisaillement dynamique intense, emp\u00eachant la d\u00e9faillance structurelle m\u00e9canique.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">R\u00e9sistance \u00e0 la traction ultime<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">R\u00e9sistance \u00e0 la traction \u00e0 la rupture 42,0 MPa<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Pr\u00e9sente une capacit\u00e9 de charge en traction m\u00e9canique exceptionnelle, maintenant une stabilit\u00e9 structurelle \u00e9lev\u00e9e sous une tension dynamique \u00e0 couple \u00e9lev\u00e9.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<p><!-- 4. \u6750\u6599\u6240\u5e94\u7528\u7684\u5de5\u827a\u4ecb\u7ecd\uff08\u8868\u683c\uff09 --><\/p>\n<section class=\"molding-processes\">\n<h2 style=\"font-size: 26px !important;color: #111111 !important;margin-top: 35px !important;margin-bottom: 18px !important;font-weight: 600 !important;letter-spacing: 0.04em !important\">Configurations de processus robustes et de charge dynamique pour Estane GP72DB<\/h2>\n<p style=\"margin-bottom: 18px !important;color: #4a4a4a !important\">Gr\u00e2ce \u00e0 sa duret\u00e9 structurelle \u00e9lev\u00e9e et \u00e0 son excellente fluidit\u00e9 de polym\u00e8re fondu, l'Estane GP72DB est particuli\u00e8rement adapt\u00e9 aux composants m\u00e9caniques dynamiques :<\/p>\n<table style=\"width: 100% !important;border-collapse: collapse !important;margin-top: 20px !important;margin-bottom: 30px !important;border: 1px solid #b0bec5 !important\">\n<thead>\n<tr>\n<th style=\"background-color: #faf6f5 !important;color: #111111 !important;font-weight: 600 !important;padding: 14px 18px !important;border: 1px solid #b0bec5 !important;text-align: left !important;letter-spacing: 0.04em !important;line-height: 1.7 !important\">Classe de technologie de moulage<\/th>\n<th style=\"background-color: #faf6f5 !important;color: #111111 !important;font-weight: 600 !important;padding: 14px 18px !important;border: 1px solid #b0bec5 !important;text-align: left !important;letter-spacing: 0.04em !important;line-height: 1.7 !important\">Compatibilit\u00e9 des processus et d\u00e9tails op\u00e9rationnels<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">Engrenages silencieux dynamiques de pr\u00e9cision<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Excellent. Le processus principal pour l'Estane GP72DB. Id\u00e9al pour les engrenages droits silencieux dynamiques, les engrenages h\u00e9lico\u00efdaux, les guides coulissants structurels et les engrenages plan\u00e9taires.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">Accouplements industriels \u00e0 haute tension<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Excellent. Le module de traction \u00e9lev\u00e9 et la r\u00e9sistance au d\u00e9chirement exceptionnelle emp\u00eachent les joints en caoutchouc structurels de se fracturer sous une charge de couple m\u00e9canique continue.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important;font-weight: bold\">Coulisseaux et bagues r\u00e9sistants \u00e0 l'usure<\/td>\n<td style=\"padding: 14px 18px !important;border: 1px solid #b0bec5 !important;color: #4a4a4a !important;line-height: 1.7 !important\">Excellent. Les faibles coefficients de frottement et l'excellente r\u00e9sistance \u00e0 l'usure DIN sont parfaits pour les guides coulissants dynamiques, les paliers et les rondelles d'usure dynamiques.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<p><!-- 5. \u5236\u9020\u6280\u672f\u6307\u5357 --><\/p>\n<section class=\"manufacturing-guide\">\n<h2 style=\"font-size: 26px !important;color: #111111 !important;margin-top: 35px !important;margin-bottom: 18px !important;font-weight: 600 !important;letter-spacing: 0.04em !important\">Matrice de traitement de duret\u00e9 technique et de pr\u00e9vention des bavures<\/h2>\n<p style=\"margin-bottom: 18px !important;color: #4a4a4a !important\">Le moulage d'un polym\u00e8re amorphe \u00e0 haute duret\u00e9 comme l'Estane GP72DB n\u00e9cessite des limites thermiques strictes et des configurations de moule \u00e0 faible contrainte pour \u00e9viter les bavures :<\/p>\n<div style=\"border: 1px solid #b0bec5 !important;margin-top: 20px !important;margin-bottom: 20px !important\">\n<div style=\"background-color: #edf4f9 !important;padding: 18px !important;border-bottom: 1px solid #b0bec5 !important\">\n<p style=\"margin-bottom: 0px !important;color: #111111 !important;font-weight: bold;font-size: 15px !important\">Contr\u00f4le des bavures au niveau micron (pr\u00e9cision d'outillage)<\/p>\n<p style=\"margin-top: 8px !important;margin-bottom: 0px !important;color: #4a4a4a !important;font-size: 14px !important\">\u00c9tant donn\u00e9 que l'Estane GP72DB a des capacit\u00e9s d'\u00e9coulement \u00e9lev\u00e9es sous cisaillement dynamique (MFR 20-35), la r\u00e9sine fondue peut facilement s'infiltrer dans les petits espaces du moule, provoquant des bavures sur la ligne de joint. La division d'outillage de Jucheng utilise des machines CNC \u00e0 5 axes pour atteindre des micro-tol\u00e9rances, en maintenant les jeux de joint de moule strictement dans les 0,005 mm sur des blocs de cavit\u00e9 de moule en acier inoxydable S136 de qualit\u00e9 sup\u00e9rieure.<\/p>\n<\/div>\n<div style=\"background-color: #faf6f5 !important;padding: 18px !important;border-bottom: 1px solid #b0bec5 !important\">\n<p style=\"margin-bottom: 0px !important;color: #111111 !important;font-weight: bold;font-size: 15px !important\">Matrice de temp\u00e9rature de moule (contr\u00f4le du refroidissement)<\/p>\n<p style=\"margin-top: 8px !important;margin-bottom: 0px !important;color: #4a4a4a !important;font-size: 14px !important\">We maintain mold temperatures at 20\u00b0C\u201340\u00b0C (68\u00b0F to 104\u00b0F) using pressurized water chillers. Keeping tools cold is critical to freeze the soft elastomeric phase quickly, allowing for automatic, warp-free ejection. Melt temperatures are controlled at 195\u00b0C\u2013215\u00b0C.<\/p>\n<\/div>\n<div style=\"background-color: #edf4f9 !important;padding: 18px !important;border-bottom: 1px solid #b0bec5 !important\">\n<p style=\"margin-bottom: 0px !important;color: #111111 !important;font-weight: bold;font-size: 15px !important\">Protocole de s\u00e9chage par d\u00e9shydratant (pr\u00e9vention de l'hydrolyse)<\/p>\n<p style=\"margin-top: 8px !important;margin-bottom: 0px !important;color: #4a4a4a !important;font-size: 14px !important\">TPU is highly hygroscopic. Moisture causes hydrolytic polymer chain cleavage, making surgical parts brittle. We dry raw material in desiccant hopper dryers at 105\u00b0C (221\u00b0F) for 2\u20133 hours, keeping moisture below 0.05% before molding, protecting dynamic mechanical tensile bonds.<\/p>\n<\/div>\n<div style=\"background-color: #faf6f5 !important;padding: 18px !important\">\n<p style=\"margin-bottom: 0px !important;color: #111111 !important;font-weight: bold;font-size: 15px !important\">Compensation de retrait \u00e9lastique \u00e9lev\u00e9<\/p>\n<p style=\"margin-top: 8px !important;margin-bottom: 0px !important;color: #4a4a4a !important;font-size: 14px !important\">Like standard TPU, Estane GP72DB exhibits high shrinkage (typically 1.0% to 2.0% depending on hardness and grade). Our tooling division scales mold cavities precisely to compensate for this shrinkage, ensuring exact dimensional results verified by Zeiss CMM.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<p><!-- 6. \u4e3b\u8981\u5e94\u7528\u884c\u4e1a\u9886\u57df --><\/p>\n<section class=\"key-applications\">\n<h2 style=\"font-size: 26px !important;color: #111111 !important;margin-top: 35px !important;margin-bottom: 18px !important;font-weight: 600 !important;letter-spacing: 0.04em !important\">Key Application Fields for TPU-Lubrizol Estane GP72DB<\/h2>\n<ul style=\"padding-left: 20px !important;margin-bottom: 25px !important\">\n<li style=\"margin-bottom: 10px !important;color: #4a4a4a !important\"><strong>Industrial Dynamic Machinery:<\/strong> High-precision silent gears, heavy-duty industrial dynamic couplings, slide bearings, dynamic conveyor guide blocks, and wear-resistant washers.<\/li>\n<li style=\"margin-bottom: 10px !important;color: #4a4a4a !important\"><strong>Automotive Powertrains &amp; Chassis (IATF 16949):<\/strong> High-temperature dust bellows, steering rack protective sleeves, vibration-damping grommets, and chassis seals.<\/li>\n<li style=\"margin-bottom: 10px !important;color: #4a4a4a !important\"><strong>Heavy Appliance Structures:<\/strong> Washing machine vibration dampers, water pump impellers, heavy-duty logistics bins, and high-stiffness powertool casings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Estane GP72DB Engineering Hardness &amp; Mechanical Profile ESTANE\u00ae GP72DB is an aromatic polyester-based engineering thermoplastic polyurethane (TPU) engineered by Lubrizol, designed to deliver extreme mechanical strength, structural hardness, and exceptional tear resistance under ASTM standards: Mechanical Attribute Estane GP72DB Nominal Metric Dynamic Molding &amp; Structural Advantage Engineering Hardness Shore Hardness 68 Shore D Bridges the [&hellip;]<\/p>\n","protected":false},"featured_media":2514,"template":"","meta":[],"class_list":["post-2549","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model\/2549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media\/2514"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media?parent=2549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}