PEI: polyether imide
English name: polyetherimide,
Definition of PEI: a class of polymers with aromatic ether group and imide group as structural characteristic groups, which are directly connected with aromatic imide group benzene ring and repeat unit. It is usually synthesized by nucleophilic substitution polymerization of aromatic diphenol and dinitrodisimide monomer. It is a thermoplastic engineering plastic with excellent comprehensive properties.
characteristic
1. High temperature resistance (HDT over 200℃, UL continuous application temperature over 170℃)
2. Excellent flame retardant (oxygen index > 4.7, low smoke emission and UL94V-0/5V)
3. No need to add flame retardants
4. Excellent electrical performance (stable dielectric constant and dielectric loss and high dielectric strength in a wide range of frequencies and temperatures)
5. Excellent chemical resistance and radiation resistance
6. Unique strength and rigidity
7. Transparency
Processing technology
Drying treatment: PEI has hygroscopic properties and can cause material degradation. The humidity should be less than 0.02%. The recommended drying condition is 150℃ for 4 hours.
Melting temperature: 340 ~ 400℃ for common materials; The reinforced material is 340 ~ 415℃.
Mold temperature: 107 ~ 175℃, recommended mold temperature is 140℃.
Injection pressure: 700 ~ 1500bar.
Injection speed: Use the highest injection speed possible.
Scope of application
Because PEI has excellent comprehensive balance performance, effective application in electronics, electrical machinery and aviation industry departments, and used as traditional products and cultural life products of metal substitute materials. Using PEI instead of metal to fabricate fiber optic connectors can optimize component structure, simplify manufacturing and assembly steps, and maintain more accurate dimensions. For automotive applications, such as high temperature connectors, high power lights and indicators, sensors to control the external temperature of the vehicle cabin (air conditioning temperature sensors) and sensors to control the temperature of air and fuel mixtures (effective combustion temperature sensors). It can also be used as a vacuum pump impeller resistant to corrosion of high temperature lubricating oil, ground glass joint (junction) of distillate operating at 180℃, and non-illuminating anti-fog lamp mirror
Plate specification: thickness x width x length, 10 ~ 80mm *x620mm x 1000mm
Bar size: 5 ~ 150mm x 1000mm
Color: Deep yellow translucent
Manufacturer: Gale, Germany
Guangzhou Yayan Plastic Products Co., LTD. Spot supply: PEEK board/rod, PPS board/rod, PVDF board/rod, PTFE board/rod, PSU board/rod, PEI board/rod, PI board/rod, PAI board/rod, PPO board / Rod, PBT board/rod, CPVC board/rod, UPE board/rod, PETP board/rod, PC board/rod, POM board/rod, ABS board/rod, PMMA board/rod, PP board/rod, PE board / bar, imported PU board/bar, German PES board/bar, domestic PVC board/bar, Swiss engineering PBI board/bar, German PA nylon series board/bar/sheet, MC nylon series board. Insulation materials: Taiwan red, black electric board, cold drawing board, phenolic laminate cloth bar board, heat insulation board, epoxy glass fiber bar board, epoxy board (FR-4) asbestos board, etc. Anti-static products: anti-static POM board/rod, anti-static organic board, anti-static PC board. Anti-static PVC plate/bar, anti-static nylon plate/bar synthetic SLATE and so on.
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