TPU-Lubrizol Estane 58211
Để đạt được độ đàn hồi cao và khả năng chống cháy đáng tin cậy mà không có halogen ăn mòn trong các vòng đệm công nghiệp hạng nặng và vỏ cáp động, cần một nền polyether được ổn định cao, mà ESTANE® 58211 (ZHF 58211) của Lubrizol cung cấp. Với mật độ 1,29 g/cm³ và độ cứng 91A Shore A, TPU chống cháy không chứa halogen (NHFR) này cung cấp độ bền xé đặc biệt (84 kN/m) và tính linh hoạt ở nhiệt độ thấp mạnh mẽ. Jucheng Precision, dưới khuôn khổ chất lượng ISO 9001 và IATF 16949, chuyên ép phun chính xác Estane 58211. Sử dụng dụng cụ gia công CNC 5 trục, chúng tôi tối ưu hóa cổng phun và quản lý độ co ngót cao (1,0%-2,0%) để ngăn ngừa lõm co trên các gân kết cấu nặng, được kiểm tra bằng 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 | SABIC Ultem 1000 Value | Lợi thế ép phun và ứng dụng cuối |
|---|---|---|
| Eco Flame Retardant | 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:
| 成型技术等级 | Process Compatibility & Operational Details |
|---|---|
| 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:
Micron-Level Flash Control (Tooling Precision)
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.
Quy trình sấy hút ẩm (Ngăn ngừa thủy phân)
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.
High Elastic Shrinkage Compensation
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
- Industrial Infrastructure & Machinery: Heavy-duty high-pressure industrial oil seals, chemical-resistant gaskets, dynamic expansion plugs, and protective cable boots.
- Sạc EV & Ô Tô (IATF 16949): Custom automotive charging gun cables, high-voltage sensor covers, electrical fuse housings, and vehicle bellows.
- Consumer Electronics & Wearables: High-safety Wi-Fi router enclosures, adapter housings, power tool housings, and set-top boxes.
Properties
| Mật độ | 1.25 - 1.29 g/cm³ |
| Hardness (Shore A, 5s) | 91 - |
| Độ bền kéo | 27.9 MPa |
| Tensile Elongation at Break (DAM) | 340 - 470 % |
| Tensile Stress at 100% Elongation | 8.6 MPa |
| Tensile Stress at 300% Elongation | 14.8 MPa |
| Tear Strength (Graves, Die C) | 84 kN/m |
| Taber Abrasion Loss (H18, 1000g) | 2 mg |
| Glass Transition Temperature (Tg) | -38.0 °C |
| Nhiệt độ hóa mềm Vicat | 98 °C |
| Độ co rút khuôn tuyến tính | 1.0 - 2.0 % |
| Độ bền điện môi | 18 - 25 kV/mm |
| Volume Resistivity | 1.0E+12 Ohm-cm |
| Kích thước chi tiết tối đa | 800 x 600 mm |
| Kích thước chi tiết tối thiểu | 1 x 1 mm |