PEI（聚醚酉先亞胺）是一種無定形的高性能聚合物，不僅有高機械效能，還擁有極佳的耐熱及化學穩定性能（連續使用溫度大約170°C），以及高尺寸穩定性和蠕變強度。在其熱塑塑料中獨一無二的抗扭強度，使其成為小型鋼制切削零件的廉價替代品。特性：極高強度高剛度、極佳的尺寸穩定性、優良的耐化學藥品性、耐水解性能、高受熱不變形能力、不受天氣條件限制。固有的阻燃性，并且發煙量低、物理惰性（適用于與食品接觸）。良好的電絕緣性能。 應用：餐具/公共飲食業、醫療設備、電信、模制互連件（MID）、汽車照明、飛機內部件、HVAC/流體處理。
規格：板材：厚x寬x長=10～80mm x620mm x 1000mm
              棒材：5～150mm x 1000mm
產地：德國蓋爾 / 瑞士工程塑料.
顏色：深黃色半透明，黑色
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PEI (polyether stepped imine) is first a kind of amorphous high-performance polymers， not only have high mechanical efficiency， also has excellent thermal and chemical stability performance (continuous use about 170 ° C temperature)， and high dimensional stability and creep strength. In its thermoplastic unique the atb strength， make it become small steel cutting parts of cheap substitute. Features: high intensity is high stiffness， excellent size stability， excellent anticorrosion chemical resistance， resistance to hydrolysis performance， high heat deformation ability， from the weather conditions restrictions. Inherent flame retardancy and hair smoke quantity is low， the physical inert (applicable to and food contact). A good electrical insulation performance. Application: tableware/the catering industry， medical equipment， telecom， die system interconnection (MID)， a car lighting， an internal pieces， HVAC/fluid handling.
Specification: plank: thick x = 10 ~ 80 mm long x620mm x 1000 mm
Rod: 5 ~ 150 mm x 1000 mm
Origin: Germany Gail/Switzerland engineering plastics.
Colour: deep yellow translucent， black