Introduction to High performance engineering plastics and application areas

Introduction to High performance engineering plastics and application areas

1.What are High performance engineering plastics ?

High performance engineering plastics are a new type of high-performance polymer plastics with high comprehensive performance and can be used for a long time at temperatures higher than 150°C. Special engineering plastics have many characteristics that other materials cannot.

High performance engineering plastics have many characteristics that cannot be combined with other materials, such as high temperature resistance, fatigue resistance, corrosion resistance, abrasion resistance, irradiation resistance, high strength, high toughness, excellent electrical properties, good dimensional stability, etc.. Whether for the national defense industry, aviation, aerospace, shipbuilding and other fields or for electrical appliances, electronic communications, automotive, medical equipment, petrochemical and other areas of military and civilian development of high-tech are indispensable revolutionary materials.

2. What materials are included in High performance engineering plastics ?

Now the main varieties of High performance engineering plastics are: Polyimide (PI), polyamine imide (PAI), polyetherimide (PEI), Polyphenylene Sulfide (PPS), Polyetheretherketone (PEEK), etc..

(1) Polyetheretherketone PEEK

Polyetheretherketone, a linear aromatic semi-crystalline thermoplastic, is a legendary specialty engineering plastic with unprecedented extremely high performance, and has been used as an important strategic defense military material since its inception.

Its glass or fiber reinforcement can be used at 250°C for long periods of time. Advantages are low creep, high modulus of elasticity, excellent frictional properties, resistance to various media and very good chemical resistance. Application areas: electrical and electronic, machinery, automotive industry, petroleum survey, medical, protective coating, etc.

(2) polyphenylene sulfide PPS

PPS is known as the sixth largest engineering plastics, is China's independent industrialization of special engineering plastics. Has excellent thermal stability, long-term use of the highest temperature in thermoplastic materials, up to 220 ~ 240 ° C, applications: electrical and electronic, machinery, automotive, flame retardant accessories, etc.

(3) Polyetherimide PEI

Polyetherimide can be used under the working temperature of -160°C~180°C for a long time. It has high temperature resistance, high strength, high modulus and wide range of chemical resistance, flame resistance, and low smoke emission, high dielectric constant and loss factor.