Overview
Sabic Polyetherimide (PEI), commercially known as Ultem, is a high-performance thermoplastic renowned for its exceptional thermal stability, mechanical strength, and chemical resistance. Developed by Sabic, this material is widely used in demanding industries such as aerospace, automotive, and electronics due to its ability to withstand high temperatures and harsh environments. PEI is an amorphous polymer, which means it does not crystallize, providing excellent dimensional stability and transparency in certain grades. Its unique combination of properties makes it a preferred choice for applications requiring durability and reliability under extreme conditions.
Physical and Chemical Properties
PEI exhibits a density of 1.27 g/cm³ and a melting point around 340°C, making it suitable for high-temperature applications. It is inherently flame retardant, achieving UL94 V-0 rating without additives, and offers low smoke emission during combustion. The material is highly resistant to most chemicals, including hydrocarbons, alcohols, and acids, though it may degrade in strong bases. Its insolubility in water and resistance to hydrolysis make it ideal for use in humid or wet environments. PEI also demonstrates excellent electrical insulation properties, further broadening its application scope.
Main Applications
In the aerospace industry, PEI is used for interior components, such as seat frames and ducting, due to its lightweight and flame-retardant properties. The automotive sector leverages PEI for under-the-hood components, sensors, and connectors, where thermal and chemical resistance are critical. Electronics manufacturers utilize PEI for circuit boards, connectors, and insulating films, benefiting from its dielectric strength and dimensional stability. Medical devices, including surgical instruments and sterilization trays, also rely on PEI for its biocompatibility and ability to withstand repeated autoclaving.
Safety and Storage
While PEI is generally safe to handle, precautions should be taken to avoid inhalation of dust during machining or processing. Proper ventilation and personal protective equipment (PPE), such as masks and gloves, are recommended. Storage conditions should be dry and cool, away from direct sunlight to prevent degradation. PEI pellets or sheets should be kept in sealed containers to avoid moisture absorption, which could affect processing performance. Compliance with local safety regulations and material safety data sheets (MSDS) is essential for safe handling.
B2B Procurement Guide
When procuring PEI, specify the grade required for your application, as Sabic offers various formulations tailored to different industries. Common grades include PEI 1000 for general-purpose use and PEI 2300 for higher thermal stability. Verify regulatory compliance, such as FDA or EU RoHS, if the material will be used in food-contact or electronic applications. Prices vary based on grade and order volume, with bulk purchases typically offering cost savings. Partnering with authorized distributors ensures material authenticity and technical support.
Related Manufacturers
- 主营：ADMER三井粘合树脂、Nucre粘合树脂、Elvaloy改性树脂、沙伯基础1010、接枝GMA、马来酸酐接枝、PP马来酸酐接枝、PE接枝马来酸酐、Surlyn沙林树脂
- 主营：沙伯基础、工程塑料
- 主营：四氢噻吩、二甲基二硫、一乙醇胺、聚醚酰亚胺、异辛醇、环丁砜、二甲基亚砜、异丙醚、环己酮、异辛烷、氟硼酸、三乙胺、正庚烷、燕化苯酚、马来酸酐、三乙醇胺、亚硝酸钠、鲁西甲酸、三氧化二锑、3-乙氧基丙胺
- 主营：PVDF、PVDF彩色料、PFA、沙伯基础2100、FEP、PTFE、PEEK、PEI、PSU、PCTFE、ECTFE、PES
- 主营：聚甲醛POM、工程塑料PA6/66、PTFE粉、沙伯1000、食品级POM、POM500P、POM100P、POE增韧剂、杜邦POM、旭化成POM、宝理POM、EVA40W、聚碳酸酯PC、奇美PMMA
- 主营：PA66、PA6、PEEK、沙伯基础PEI、PA12、PPA、PEI、TPEE、TPE、TPU、TPV、改性尼龙、PA612、PPS、LCP、PA6T、PA46、导电防静电塑料、防静电塑料、PEI塑料、耐高温塑料、耐磨塑料、塑胶原料、PPS塑料、PEEK塑料、PA66塑料
- 主营：塑胶原料、工程塑料、铁氟龙、PEI沙伯基础1010、PTFE、HDPE、PVDF、PC、PP、pPA6、PA66、hhm5502lw、c2950-111、聚乙烯、ppo塑胶、pcg-3430r、t-45注塑、pc243r-111、pese2010g4、包装薄膜、电线电缆、照明灯具、蜡塑料pvc、汽车部件、耐低温热、塑料玩具
- 主营：TPEE弹性体、TPE原料、TPU聚氨酯、PEI沙伯创新、沙林树脂、PTFE聚四氟乙烯、PFA全氟乙烯、PVDF、PPA、PA12、PA46、PA9T、聚砜PSU、PPSU、PEEK、PEI、COC、ETFE、THV
- 主营：GF增强POM、工程料PPA、陶氏热熔胶、聚醚酰亚胺2110R、透明尼龙、增韧剂POM、耐磨 PTFE细粉、电绝缘TPV、PVDC阻隔乳液、杜邦超韧尼龙、杜邦PTFE乳液、无卤阻燃尼龙、注塑级POM、分散液PTFE、陶氏沙林树脂、抗UVPOM、EEA热熔胶、铁氟龙乳液、耐寒尼龙ST801、耐刮花PC、热塑性弹性体TPV、陶氏增韧剂、金属粘合剂、马来酸酐接枝、尼龙pa66、导电PC塑料
- 主营：PVDF、PTFE、PFA、沙伯基础创新、SURLYN沙林、EVA、PA6、PA66、PC、PCTG、PEBA、ASA、PTB、PPO、LCP、PCTA、PETG、POM、EAA、特种工程塑料、热塑性弹性体、合金塑料、CAB、氟橡胶、硅橡胶、PMMA
- 主营：防火阻燃PC、PA66、ABS、TPU、工程塑料POM、PBT、PP、HDPE、工程塑料、加纤PA66
- 主营：PEEK、PEEK原料、PEEK加纤、PEEK加碳纤、PEI塑料、PEI 1000、PES加纤、PPSU塑料、PSU塑料、PSU原料、PSU透明料、PPS加纤、POM加纤、POM改性料、PBT加纤阻燃、PBT加纤、PA66增韧、PA66加玻纤、PMMA粉、PVDF、FEP、ETFE、大金FEP、FEP聚全氟乙烯、聚全氟乙烯
- 主营：液体橡胶、塑料增韧剂、相容剂、聚醚酰亚胺、溶剂型TPU、橡胶粉末、英全SBS、聚丁二烯橡胶RB系列、可发性聚苯乙烯EPS、改性TPU
- 主营：TPU、LCP、PEEK、PEI聚醚酰亚胺、PA12、PA66、PPO、PFA、PC、PPA、PTFE、POK、PLA、PVDF、EVA、SEBS、EVOH、PEI、PES、PPE、AES、PMMA、PARA、PP、ABS
- 主营：PA66、POM、PC、PBT、PPS、LCP、PA9T、ABS、PC/ABS、PC/PBT、POE、EVA