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