PET (Polyetherimide)sheet / Ultem sheet

PET (Polyetherimide)sheet,  It is a non-crystalline plastic. It is an amorphous high-performance polymer, which is extruded from engineering plastics made of amorphous PEI (polyetherimide) at high temperature through an extruder.

Main Properties :

It has the best high temperature resistance and dimensional stability, as well as chemical resistance, flame retardancy, electrical properties, high strength, high rigidity, etc. It not only has high mechanical efficiency, but also has excellent heat resistance and chemical stability (continuous use temperature is about 170 ℃), as well as high dimensional stability and creep strength. It has high strength, high rigidity, wear resistance and dimensional stability at high temperatures. It has inherent flame retardancy and low smoke without adding any additives, the oxygen index is 47%, and the combustion grade is UL94-V-0.
The density of PEI board is 1.28~1.42g/cm3, the glass transition temperature is 215℃, and the heat distortion temperature is 198~208℃. It can be used for a long time at 160~170℃, and the maximum allowed intermittent use temperature is 200℃. PEI has excellent mechanical strength, electrical insulation properties, radiation resistance, high and low temperature resistance, fatigue resistance and molding processability; adding glass fiber, carbon fiber or other fillers can achieve the purpose of enhanced modification and torsion resistance in its thermoplastics strength, making it an inexpensive alternative to small steel cutting parts.

Applicationn:

PEI board has excellent comprehensive balance properties and is effectively used in industrial sectors such as electronics, automobiles, motors, and aviation, and is used as a metal substitute material for traditional products and cultural and daily necessities. Generally used in microware/public catering industry, analytical instruments, medical equipment, telecommunications, molded interconnects (MTD), automotive lighting, aircraft interior components, HVAC/fluid handling, etc.
PEI has excellent hydrolysis resistance, so it is used as handles, trays, clamps, prostheses, medical light reflectors and dental appliances for medical surgical instruments.