Fluoropolymers / Alfa Chemistry

ETFE with Glass or Carbon Fiber Filler


Why fill modified ETFE?

Electrical performance requirements

  • The dielectric constant of ETFE is very low, basically independent of frequency. The dissipation factor is low, but it will increase with the increase in frequency, and it can also be increased by cross-linking. The dielectric strength and resistivity are high and are not affected by water.
  • Filling the ETFE matrix with conductive fillers, such as carbon fibers (CF) or carbon nanotubes (CNT), is a conventional method for preparing conductive polymer composites. These composite materials are designed to dissipate static charges generated by surface-to-surface contact in rotating or moving equipment. The high aspect ratio of CF or CNT is more likely to form conductive paths in polymer blends, but may affect the physical and mechanical properties of synthetic polymer composites.

Mechanical performance requirements

  • ETFE exhibits excellent toughness and wear resistance in a wide temperature range, and it combines high tensile strength, high impact strength, bending resistance and creep resistance. The friction and wear properties are good, and the creep resistance and softening temperature can be improved by adding fillers.
  • ETFE resin is often mixed with various ingredients, such as glass fiber and bronze powder, to obtain certain mechanical properties. For example, add 25 to 35 wt% of glass fiber to increase modulus and improve wear and friction characteristics. ETFE reinforced and modified by glass fiber is tougher, harder and higher tensile strength than PTFE, PFA or FEP.

CF filled ETFE performance and its application

  • Significance
  • Electrostatic discharge can attract dust, damage sensitive electronic components and mechanical equipment, erase or change magnetic media, and even cause explosions or fires in flammable and explosive environments. ETFE anti-static conductive plastic materials can be used to control electrostatic discharge. ETFE anti-static conductive materials can dissipate charges before they accumulate to danger. Conductive anti-static ETFE is designed to protect key electronic equipment from electrostatic discharge hazards, electromagnetic and radio frequency interference, and it can also conduct charges while maintaining other properties of the material itself.

  • Description
  • Add long carbon fiber or chopped carbon fiber CF and other additives modified into ETFE anti-static conductive material.

  • Property
  • Electrical conductivity, high and low temperature resistance, toughness, chemical resistance, radiation resistance, non-combustibility, low friction, non-stick, and good processing performance.

  • Application
  • It is suitable for manufacturing all kinds of pump valve bushings, chemical containers, wear-resistant parts, seals, medical equipment, films, pipes, cables, extruded plates, rods, etc. that require electrical conductivity.

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