PEEK poly-ether-ether-ketone composite long glass fiber filing resin for automotive

PEEK-NA-LGF30

PEEK LGF30 is PEEK filled with long glass fiber plastic. Due to the long glass fiber, the biggest difference between PEEK LGF30 and PEEK pure plastic lies in modulus. The modulus value of PEEK LGF30 is 6300mpa, which is the highest in the PEEK family. PEEK LGF30 has higher stiffness and wear resistance, and correspondingly higher stiffness makes the plastic more brittle.

Characteristics

Low friction coefficient

PEEK LGF30 has a 5% elongation at break and a particularly smooth surface with low surface coefficient, making it suitable for applications requiring rigid friction rather than impact.

Low deformation temperature

More importantly, due to the addition of glass fiber, the deformation of PEEK LGF30 is lower than that of pure PEEK material under the same high temperature and high pressure. When the temperature exceeds the glass transition temperature of PEEK at more than 150℃, the glass state of the material will occur. In this case, recrystallization will occur, which will correspondingly reduce the mechanical strength of PEEK material. However, the recrystallization rate of PEEK LGF30 will be reduced due to the presence of glass fiber. Therefore, if the pure PEEK material and PEEK LGF30 are subjected to the same high temperature and high pressure working conditions, the deformation temperature of PEEK LGF30 will be lower.

PEEK is one of the existing thermoplastic materials with the best heat resistance. The melting point is 343℃, and the UL certified long-term use temperature is 260℃. Even when the temperature reaches 300℃, it can still maintain excellent mechanical properties. PEEK thermal deformation temperature is 135~160℃, 20% glass fiber reinforced PEEK thermal deformation temperature is 286℃, 30% glass fiber reinforced thermal deformation temperature is 300℃.

Good Mechanical ability

PEEK has excellent mechanical properties and is the most perfect combination of toughness and rigidity among all resins. PEEK has high rigidity, and its strength and fatigue resistance can be compared with some metals and alloy materials. It can maintain high strength even at high temperature. The bending strength can reach 24MPa at 200℃, and the bending strength and compressive strength can reach 12-13 MPa at 250℃, which is especially suitable for manufacturing components that work continuously at high temperature.

PEEK has low linear expansion coefficient (close to aluminum) and good dimensional stability. In addition, PEEK also has good creep resistance, can withstand great stress during the service life, and will not be significantly extended due to the extension of time.

Why is PEEK so expensive?

01 Monomer materials are expensive:

The two main monomers of PEEK polymerization, 4,4 '-difluorophenone and hydroquinone, are expensive. In addition, there are relatively high requirements on the particle size and purity of sodium salt used.

02 Harsh reaction conditions and high cost: 

The PEEK polymerization process must ensure the reaction in the state of oxygen, and the reaction temperature is as high as 310-340℃. In order to obtain a higher purity PEEK resin, it is necessary to carry out dozens of times of alcohol exquisite process and washing process on the crude product.

03 High technical requirements:

PEEK has good processing performance, but because the melting point of PEEK is as high as 343℃, and the adhesive property of PEEK is relatively strong, the material, structure and temperature control of the molding equipment are relatively high.

04 High product requirements and various processing procedures: 

Due to the high price of PEEK materials, customers have relatively high requirements for finished products, and the appearance quality, tolerance, surface finish and so on need to be strictly controlled. Some products have complex structure, resulting in more processing procedures and more personnel involved, resulting in increased costs.

05 Small batch of products, non-standard specifications:
Due to its excellent comprehensive performance, PEEK can be used in a wide range of industries, but most of them are used for special occasions on equipment, so the dimensions, structural characteristics, specifications and models are different. At present, we have come into contact with more than 1500 products using PEEK.

About us

Xiamen LFT composite plastic Co., Ltd is a brand-name company that focuses on LFT&LFRT. Long Glass Fiber Series (LGF) & Long Carbon Fiber Series (LCF). The company's thermoplastic LFT can be used for LFT-G injection molding and extrusion, and can also be used for LFT-D molding. It can be produced according to customer requirements: 5~25mm length. The company's long-fiber continuous infiltration reinforced thermoplastics have passed ISO9001 & 16949 system certification, and the products have obtained lots of national trademarks and patents.