TPU-Lubrizol Estane 58211
Alcançar alta recuperação elástica e retardância de chama confiável sem halogênios corrosivos em vedações industriais de serviço pesado e capas de cabos dinâmicas requer uma matriz de poliéter altamente estabilizada, que o ESTANE® 58211 (ZHF 58211) da Lubrizol fornece. Apresentando uma densidade de 1,29 g/cm³ e uma dureza de 91A Shore A, este TPU retardante de chama não halogenado (NHFR) fornece resistência excepcional ao rasgo (84 kN/m) e robusta flexibilidade em baixas temperaturas. A Jucheng Precision, sob as estruturas de qualidade ISO 9001 e IATF 16949, é especializada em moldagem por injeção de precisão do Estane 58211. Utilizando ferramentas usinadas em CNC de 5 eixos, otimizamos o sistema de canais e gerenciamos sua alta contração (1,0%-2,0%) para evitar marcas de afundamento em nervuras estruturais pesadas, verificadas por CMM Zeiss.
Estane 58211 Non-Halogen Flammability & Toughness Profile
ESTANE® ZHF 58211 is a non-halogen, flame-retardant, aromatic polyether-based thermoplastic polyurethane (TPU) engineered by Lubrizol, designed to deliver exceptional tear strength, thermal stability, and low smoke toxicity:
| Physical & Safety Property | Valor do SABIC Ultem 1000 | Vantagem de Moldagem e Uso Final |
|---|---|---|
| Retardante de Chama Ecológico | Halogen-Free (NHFR) Formulation | Achieves flame retardancy without halogens, preventing toxic smoke and acid gas outgassing, ensuring high safety in transport systems. |
| Tear & Wear Strength | Graves Tear Strength 84 kN/m | Provides outstanding tear and abrasion resistance (Taber loss 2mg), preventing crack propagation in dynamic protective bellows. |
| Subzero Flexibility | Glass Transition Temperature -38°C | Maintains exceptional polymer matrix toughness and elastic flexibility in deep-freeze environments, avoiding brittle failure. |
Structural Component Process Configurations for Flame-Retardant Estane 58211
With its high-flow melt performance and low mold shrinkage, Estane 58211 processes consistently inside precise cavities:
| Classe de Tecnologia de Moldagem | Compatibilidade de Processo e Detalhes Operacionais |
|---|---|
| Heavy-Duty Cable Reliefs | Excellent. Configured with hot-runner gating to mold lightweight cable strain-relief boots, dynamic bellows, and industrial protective sleeves. |
| Flame-Retardant Industrial Seals | Excellent. Outstanding dimensional stability, low outgassing, and high chemical resistance prevent structural distortion. |
| Multi-pin Connector Overmolding | Good. Highly compatible with other engineering resins to provide localized flexible seals and dynamic gas-tight protection barriers. |
TPU-Lubrizol Estane 58211 Tooling & Processing Guide
Molding an amorphous high-performance elastomer like Estane 58211 requires strict thermal boundaries and low-stress mold setups to prevent flashing:
Controle de Rebarbas em Nível de Mícron (Precisão de Ferramentas)
Because Estane 58211 has exceptional flow capabilities, the molten resin can seep easily into minor mold gaps, causing parting line flash. Jucheng’s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks.
Mold Temperature Matrix (Crystallization)
We maintain mold temperatures at 20°C–40°C (68°F to 104°F) 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 190°C–210°C.
Protocolo de Secagem com Dessecante (Prevenção de Hidrólise)
TPU is highly hygroscopic. Moisture causes hydrolytic polymer chain cleavage, making surgical parts brittle. We dry raw material in desiccant hopper dryers at 100°C–110°C (212°F to 230°F) for 3–4 hours, keeping moisture below 0.02% before molding, protecting dynamic mechanical tensile bonds.
Compensação de Alta Retração Elástica
Like standard TPU, Estane 58211 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.
Key Application Fields for TPU-Lubrizol Estane 58211
- Infraestrutura Industrial e Maquinário: Heavy-duty high-pressure industrial oil seals, chemical-resistant gaskets, dynamic expansion plugs, and protective cable boots.
- Carregamento de VE e Automotivo (IATF 16949): Custom automotive charging gun cables, high-voltage sensor covers, electrical fuse housings, and vehicle bellows.
- Eletrônicos de Consumo e Wearables: High-safety Wi-Fi router enclosures, adapter housings, power tool housings, and set-top boxes.
Propriedades
| Densidade | 1.25 - 1.29 g/cm³ |
| Hardness (Shore A, 5s) | 91 - |
| Resistência à Tração | 27.9 MPa |
| Alongamento na Ruptura (DAM) | 340 - 470 % |
| Tensão de Tração a 100% de Alongamento | 8.6 MPa |
| Tensão de Tração a 300% de Alongamento | 14.8 MPa |
| Resistência ao Rasgo (Graves, Matriz C) | 84 kN/m |
| Taber Abrasion Loss (H18, 1000g) | 2 mg |
| Temperatura de Transição Vítrea (Tg) | -38.0 °C |
| Vicat Softening Temperature | 98 °C |
| Contração Linear no Molde | 1.0 - 2.0 % |
| Rigidez Dielétrica | 18 - 25 kV/mm |
| Resistividade de Volume | 1.0E+12 Ohm-cm |
| Tamanho Máximo da Peça | 800 x 600 mm |
| Tamanho Mínimo da Peça | 1 x 1 mm |