Differences between mineral-filled polyether ether ketone (PEEK) and regular unfilled PEEK

Semi-crystalline Plastic Film

Semi-crystalline PEEK film in the molecular arrangement of the more orderly, some of which formed a crystalline structure, there are also amorphous regions.
Performance characteristics: semi-crystalline PEEK film has high strength and rigidity, while retaining a certain degree of flexibility, its density is relatively high, good mechanical properties.
Applications: Due to its good mechanical properties and chemical stability, semi-crystalline PEEK films are commonly used in applications requiring high strength and rigidity, such as aerospace, automotive industry, electronic devices, etc.

• Appearance: Higher degree of crystallinity, usually with a smoother and more homogeneous surface
• Transparency: higher transparency compared to amorphous PEEK film
• Color: Milky white or light yellow, plus uniform color distribution
• Flexibility: with better mechanical properties and chemical stability, semi-crystalline PEEK films are often used in applications requiring high strength and rigidity.
• Density: 1.3 to 1.45 g/cm3
• Strong mechanical properties
• Applications: aerospace, automotive industry, electronics, etc.

Mineral filled PEEK film

A mineral filled polyether ether ketone (PEEK) film is a film material made by adding mineral fillers (glass fibers, carbon fibers, carbon black, calcium and magnesium silicates) to a polyether ether ketone matrix.

• Glass fibers: used to increase rigidity and strength.
• Carbon fibers: for increased strength and stiffness, and reduced density.
• Graphite: used to increase electrical conductivity and abrasion resistance.
• Calcium and magnesium silicates: used to increase rigidity and heat resistance.

Differences between mineral-filled polyether ether ketone (PEEK) and regular unfilled PEEK:

• Mechanical properties:

Mineral-filled PEEK increases strength and stiffness.

• Wear Resistance:

The addition of filler minerals such as carbon black or glass fibers can significantly improve the wear resistance of PEEK.

• Conductivity:

Increased electrical conductivity.

• Thermal Stability:

The addition of calcium and magnesium silicates improves the thermal stability and heat resistance of PEEK, especially in high temperature environments.

Polyether ether ketone film Applications

• Electronics

CD and DVD motor gaskets, speaker film, circuit board substrates, 5G antenna substrates and other related components, supercapacitors

• Automotive

Sealing gaskets, thrust washers, motor insulation, high temperature circuit boards

• Petroleum, Petrochemical

Oil and gas cable wrappers, RFID tags, solenoid wire insulation, pressure sensors, flexible film heaters, conveyor belt devices, high performance labels

• Aerospace

Insulating films, thermoformed parts, carbon fiber composites, multifunctional adhesive tapes

• Electronics & Semiconductors

Liquid crystal glass polishing frames, silicon wafer carriers, wafer and glass conveyor belts

• Food and medical

Process tape devices, pharmaceutical labels, membrane switches, specialty packaging