Application direction of Mesophase Pitch-based Carbon Fiber (2) - Mesophase Pitch-based Carbon Fiber (MPCF) Thermally/Conductive Plastic

2022-05-18

1. About Mesophase Pitch-based Carbon Fibers

Mesophase pitch-based carbon fiber (MPCF) is processed by a series of processes such as spinning, oxidation, carbonization, and graphitization, using mesophase pitch, a material that is easy to graphitize, as a precursor. The lamellar macromolecules composed of carbon elements are aligned along the fiber axis, and the fibers are in a highly graphitized state, showing excellent macroscopic properties such as high modulus, high thermal conductivity, electrical conductivity, electromagnetic shielding, damping, and low thermal expansion coefficient. The modulus can reach more than 900GPa, and the thermal conductivity can reach 1200w/m﹒k or more.

2. MPCF can endow plastics with excellent thermal/conductive/electromagnetic shielding properties, replacing metal materials in many fields.

30% specific gravity mesophase pitch-based carbon fiber chopped or ground fiber filled nylon 66 composite material can achieve the comprehensive performance level of tensile strength greater than 200MPa, flexural modulus greater than 20GPa, thermal conductivity greater than 10W/m, and volume resistivity less than 100Ω﹒cm .

Thermally conductive plastics market application:


  • LED lighting radiator
  • Motor/Power Tool Housing
  • Circuit board/electronic device packaging materials
  • Laptop/Tablet Front and Back Covers
  • Conductive plastic market applications:
  • EMI/RFI electromagnetic shielding for mobile phones, base stations, etc.
  • Millimeter-wave radar electromagnetic shielding for autonomous driving systems
  • Hydrogen Fuel Cell Bipolar Plate
  • Communication base station tower suspension structure
  • Confidential Communication Electromagnetic Shielding
  • High-quality alternative to metal die-casting base station housing


Radiator

Electromagnetic shielding shell


Mesophase pitch-based carbon fiber integrates many characteristics such as light weight, high modulus, high strength, high thermal conductivity, electrical conductivity, electromagnetic shielding, low thermal expansion coefficient, and strong process designability, and will become a key material in many fields. Material core competitiveness.