1. PEI is an amber transparent solid with good flame retardancy and low smoke, and the burning grade is UL94-V-0.2, PEI has a strong high temperature stability. High temperature resistance, thermal deformation temperature of 220 ° C, can be used for a long time at -160 to 180 ° C operating temperature.3, hydrolytic stability is very good, high temperature resistance, steam resistance;4. Polyetherimide has good UV and Y-ray resistance.
Polyetherimide PEI Ultem Resin /pellets/ Granules
Product Details
PEI can replacing metal to fabricate fiber optic connectors optimizes component construction, simplifies manufacturing and assembly steps, and maintains more accurate dimensions. Used in automotive applications such as high temperature connectors, high power lights and indicator lights, sensors that control the temperature outside the cabin, and sensors that control air and fuel mixtures. It can also be used as a vacuum pump impeller for high temperature lubrication, a ground glass joint for a distiller operating at 180 °C, a mirror for non-illuminated anti-fog lamps.
Injection mold process condition editing
Drying treatment: PEI has hygroscopic properties and can lead to material degradation. The required humidity value should be less than 0.02%. Drying conditions of 150 ° C for 4 hours are recommended.
Melting temperature: 340-400 ° C for common type materials and 340-415 ° C for enhanced type materials.
Mold temperature: 107 ~ 175 ° C, the recommended mold temperature is 140 ° C.
Injection pressure: 700 ~ 1500bar.
Injection speed: Use the highest possible injection speed.
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