TPU-Lubrizol Estane 58211
過酷な産業用シールや動的ケーブルジャケットにおいて、腐食性ハロゲンを含まずに高い弾性回復と信頼性の高い難燃性を達成するには、高度に安定化されたポリエーテルマトリックスが必要であり、それをLubrizolのESTANE® 58211（ZHF 58211）が提供します。密度1.29 g/cm³、硬度91AショアAを特徴とし、この非ハロゲン難燃性（NHFR）TPUは、優れた引裂強度（84 kN/m）と堅牢な低温柔軟性を提供します。Jucheng Precisionは、ISO 9001およびIATF 16949品質フレームワークの下で、Estane 58211の精密射出成形を専門としています。5軸CNC加工された金型を利用して、ゲートを最適化し、その高い収縮率（1.0%〜2.0%）を管理して、厚い構造リブのヒケを防ぎ、Zeiss CMMで検証しています。.
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 値 | 成形および最終用途の利点 |
|---|---|---|
| エコ難燃剤 | 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:
| 成形技術クラス | プロセス互換性と運用詳細 |
|---|---|
| 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:
ミクロンレベルのフラッシュ制御（金型精度）
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.
乾燥剤乾燥プロトコル（加水分解防止）
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.
高弾性収縮補正
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
- 産業インフラ＆機械： Heavy-duty high-pressure industrial oil seals, chemical-resistant gaskets, dynamic expansion plugs, and protective cable boots.
- EV充電および自動車（IATF 16949）： Custom automotive charging gun cables, high-voltage sensor covers, electrical fuse housings, and vehicle bellows.
- 民生用電子機器＆ウェアラブル： High-safety Wi-Fi router enclosures, adapter housings, power tool housings, and set-top boxes.
プロパティ
| 密度 | 1.25 - 1.29 g/cm³ |
| Hardness (Shore A, 5s) | 91 - |
| 引張強さ | 27.9 MPa |
| 引張破断伸び（DAM） | 340 - 470 % |
| 100%伸長時の引張応力 | 8.6 MPa |
| Tensile Stress at 300% Elongation | 14.8 MPa |
| 引裂強度（グレーブス法、ダイC） | 84 kN/m |
| Taber Abrasion Loss (H18, 1000g) | 2 mg |
| ガラス転移温度（Tg） | -38.0 °C |
| ビカット軟化温度 | 98 °C |
| 線形成形収縮率 | 1.0 - 2.0 % |
| 絶縁耐力 | 18 - 25 kV/mm |
| 体積抵抗率 | 1.0E+12 Ohm-cm |
| 最大部品サイズ | 800 x 600 mm |
| 最小部品サイズ | 1 x 1 mm |