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PEI (Polyether Imide)

What is PEI (Polyether Imide)?

PEI is an abbreviation for Polyether Imide - an advanced thermoplastic which has both ether links and imide groups in its polymer chain. Polyether Imide has gained rapid acceptance as a high temperature engineering thermoplastic material competitive with the polysulfones, polyphenylene sulfides, and polyketones. Polyether Imide exhibits high tensile strength without the use of reinforcement, flame resistance, very low smoke emission, and excellent hydrolytic stability. Because of PEI's high stability, its range of processing is wider than many other thermoplastics. 

Polyether Imide-PEI-Resin-Granules-Pellets

UNINKO modified PEI compounds series includes glass/mineral/carbon/stainless steel fiber reinforced grade, anti-static grade, ESD protection grade, electric conductive grade, wear resistant grade, UV resistant grade, EMI shielding grade, etc broad range, with excellent performances, and widely used in the Medical/Healthcare Applications, Automotive Applications, Electrical/Electronic Applications, Pharmaceuticals, Aircraft/Aerospace Applications, Industrial Applications , Home Appliances and other industries, etc. 

UNINKO Typical Grades and its Applications:

Typical GradesMaterial DiscriptionKey Features & CharacteristicsApplications
USP1100PEI Resin

Unfilled, General Purpose, Inherently flame retardant, UL94 V0, High heat resistant, Standard flow MI=10, 20, good strength, good toughness, oil resistant, Predictable dimensional stability

Medical surgical instruments, handles, trays, fixtures, prostheses, medical light reflectors and dental appliances, Microwave food trays, Cooker Lids, Valve plumbing diverter components, etc

USP110G30PEI + 30%GF

30% glass fiber reinforced, Standard flow, ECO Conforming, UL94 V0, High stiffness, Hydrolysis resistant, High heat resistant

Optical fiber connectors, Medical instruments, Valves components, Semiconductor bracket, High voltage insulation gasket, Oil exploration drilling equipment, Automotive Applications, Aerospace /Aircraft Applications, High-temp Applications, etc

USP110C2PEI + 10%CF

10% Carbon fiber reinforced, High Electrical and Thermal Conductivity, Long-term Anti-static, ESD protection, RFI/EMI shielding, High regidity, High heat resistant

Aerospace Applications, Automotive Electronics, Business Equipment, Computer Components, Connectors , Electrical Housing, Electrical/Electronic Applications, Housings


30% Carbon fiber reinforced, 5% PTFE lubricated,  Low friction coefficient, Wear resistant, ESD protection, Electrically conductive, Static Dissipative, Good strength

Automotive Applications, Electrical/Electronic Applications, Bearings, Gears, Mechanical sliders, Copiers and Printers, Camera components, etc

USP110SF15PEI + 15% Stainless Steel Fiber

15% stainless steel fiber reinforced, EMI/RFI Shielding, Electrically conductive, Anti-static, ESD protection, Excellent strength and 


Aerospace/Aircarft/Military Applications, Automotive Electronics, Business Equipment, Computer Components, Electrical housing/packing, EMI Shielding of Electronic Devices such as telecommunication Products, Portable Electronics, Consumer Electronics, Network equipments, etc

*If any above grades or other specific grades interested, contact our technical & sales personnel now for Technical Data Sheets(TDS) Material Safety Data Sheets(MSDS) and FREE samples!
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