| Composition |
–Base Polymer: Ethylene-Acrylate Ester Copolymer (AEM, e.g., Vamac®) |
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–Reinforcing Fillers: Carbon black (40–60 phr), silica (10–20 phr) |
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–Plasticizers: Adipate esters (5–10 phr) |
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–Curing Agents: Peroxide (DCP, 1–3 phr) or diamines (0.5–2 phr) |
| Physical Properties |
–Hardness (Shore A): 60–90 (ASTM D2240) |
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–Tensile Strength: 10–20 MPa (ASTM D412) |
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–Elongation at Break: 200–500% (ASTM D412) |
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–Density: 1.1–1.3 g/cm³ |
| Thermal Resistance |
–Service Temperature: -30°C to +175°C (intermittent 200°C) |
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–Thermal Stability: <8% weight loss at 175°C (24h, ASTM D573) |
| Chemical Resistance |
–Resistant To: Mineral oils, greases, engine coolants, and ozone |
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–Limitations: Strong acids, alkalis, and polar solvents (e.g., acetone) |
| Key Applications |
–Automotive: Turbocharger hoses, transmission seals, and ignition wires |
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–Industrial: High-temperature gaskets, vibration dampers, and cable jacketing |
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–Aerospace: Fuel-resistant seals and hydraulic components |
| Processing |
–Mixing: High-shear internal mixer (70–90°C) or two-roll mill |
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–Molding: Compression/injection molding (180–200°C, 10–20 MPa) |
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–Curing: Post-cure (180°C, 2–4h) for optimal compression set |
| Safety & Compliance |
–MSDS: Non-flammable (flash point >250°C); avoid inhalation/skin contact |
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–Regulatory: REACH, RoHS, and ISO 8067 (automotive seals) |
| Storage |
–Conditions: Dry, <25°C, away from UV/ozone; shelf life 12–18 months |
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–Packaging: Polyethylene-lined bags (prevent moisture absorption) |
| Quality Control |
–Testing: Mooney viscosity (ML 1+4. ASTM D1646), compression set (ASTM D395) |
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–Certifications: ISO 9001 (manufacturing), IATF 16949 (automotive) |