聚酰亚胺 (PI) 塑料
Polyimide (PI) - Available both as thermoplastic and thermoset resins, polyimides (PI) are a family of some of the most heat and fire resistant polymers known. Polyimide is said to possess a greater resistance to heat than any other unfilled organic material. Unlike most plastics, polyimides are available in laminates and shapes, molded parts and stock shapes. Polyimide parts are fabricated by techniques ranging from powder-metallurgy methods to conventional injection, transfer, and compression molding and extrusion. In general, moldings and laminates are based on thermoset resins although some are made from thermoplastic grades. Laminates are based on continuous reinforcements where molding resins contain chopped (short) fiber reinforcements.
The first commercial polyimides (PIs) were introduced by DuPont in the early 1960s. Because of the processing difficulties the availability of modified polyimides was established in the 1970s.
耐热性，高 (31), 热稳定性，良好 (26), 耐化学品性能，良好 (24), 阻燃性 (23), 耐磨损性，良好 (18), 润滑 (15), 抗蠕变特性 (13), 高强度 (12), 高刚性 (11), 良好的电气性能 (11), 42 更多...
汽车领域的应用 (16), 混料 (15), 电气/电子应用领域 (13), 密封件 (11), 衬套 (10), 航空航天应用 (10), 轴承 (9), 工业应用 (9), 飞机应用 (8), 阀门/阀门部件 (8), 38 更多...
- Difficult to process, high temperatures required
- Limited resistance to hydrolysis
- High costs
Typical Properties and Processing Information
View material property information for 聚酰亚胺 (PI) plastics.