What are the advantages and disadvantages of PEEK board？

  Peek board is a kind of high temperature resistant thermoplastic, with high glass transition temperature (162 ℃) and melting point (358 ℃), load heat transformation temperature up to 332 ℃ (30% glass fiber or carbon fiber reinforced grade), which can be used at 260 ℃ for a long time. Compared with other high temperature resistant plastics such as pi, PPS, PTFE, Pai, PPO, the upper limit of service temperature is nearly 60 ℃; Peek resin not only has better heat resistance than other high temperature resistant plastics, but also has high strength, high modulus, high fracture toughness and excellent dimensional stability; The flexural strength of PEEK resin at 200 ℃ is about 24 MPa, and the flexural strength and compressive strength of PEEK plate at 260 ℃ are still 15-19 MPa; Peek resin has higher rigidity, better dimensional stability and smaller linear expansion coefficient, which is very close to aluminum material; It has excellent chemical resistance. In common chemicals, only concentrated sulfuric acid can dissolve or destroy it. Its corrosion resistance is similar to that of nickel steel. At the same time, it has flame retardancy. It releases less smoke and toxic gases under flame conditions and has strong radiation resistance; Peek board resin has good toughness and excellent fatigue resistance to alternating stress, which is the most outstanding among all plastics, comparable with alloy materials; Peek resin has outstanding tribological properties, excellent resistance to sliding wear and fretting wear. Peek plate can maintain high wear resistance and low friction coefficient at 256 ℃; Peek resin is easy to extrusion and injection molding, with excellent processability and high molding efficiency. In addition, peek also has excellent properties such as good self lubrication, easy processing, stable insulation and hydrolysis resistance. Peek board has good comprehensive properties, good mechanical properties, high temperature resistance and excellent chemical resistance, making it the most common plastic.

1、Material overview

  Peek and PI are high-performance materials synthesized by wiggs company and DuPont company of the United States respectively, and have invention patents. Peek and PI in high-performance polymers have excellent comprehensive properties which are unmatched by other general plastics, and have excellent performance in various harsh environments. They have been successfully widely used in aerospace, automobile, electronic semiconductor, etc Mechanical and electrical industry in various demanding occasions. It is the material for users to develop new products and improve the service life and reliability of products.

2、Features and advantages

★High temperature resistance

The long-term use temperature of UL certification is 260 ℃. Excellent mechanical properties are maintained even at temperatures up to 300 ℃

★Wear resistance

Peek polymer and its composites have good wear resistance in many extremely harsh applications such as high temperature, high load and strong corrosion.

★Self lubricating

With low friction coefficient, it can realize oil-free lubrication, and can work in oil, water, steam, weak acid and alkali medium for a long time.

★Corrosion resistance

It is insoluble in common solvents and has good corrosion resistance to various organic and inorganic chemical reagents.

★High strength

It has good mechanical strength in plastics. It also has high rigidity and surface hardness.

★Easy to process

The parts can be directly processed by injection molding process. It can be used for turning, milling, drilling, tapping, bonding and ultrasonic welding.

★Hydrolysis resistant

The peek products can still work for thousands of hours without obvious performance degradation when they are soaked in steam with temperature over 250 ℃ or high pressure water.

★Fire retardant

The flammability grade of 1.45 mm thick peek sample is UL94 V-0 without any additives.

★Low smoke and non-toxic

When burning, the amount of smoke and poison gas is very low.

★Electrical performance

In a wide temperature and frequency range, it can still maintain stable and excellent electrical performance.

★Radiation resistance

It has strong resistance to high dose γ The performance of radiation and mechanical properties can be completely retained, which can be used as radiation resistant parts in nuclear equipment.