Nanodiamond polymer composites exhibit several different properties compared to the equivalent unmodified polymer.  The changes are due in part to the numerically high mechanical and thermal properties of diamond, and in part due to nanoscale effects obtained by dispersing small particles into the polymer material.  The surface functionalisation of the nanodiamond particles means they will interact with the polymer molecules, as well as any other filler materials present.  Particularly in the case of polymers containing fillers, the modification in properties is very high, even when extremely low amounts of nanodiamond are added.

Typical nanocomposite applications:

  • Increasing of abrasion resistance
  • Increasing of tensile strength and Young's modulus
  • Increasing fracture toughness
  • Increasing thermal conductivity without affecting electrical isolation
  • Reducing the coefficient of thermal expansion
  • Extending both the high and low temperature limits of operation

Polymers for modification include various thermoplastics such as PA, PAI, PEEK, PTFE and others.

Achieving a good dispersion of nanodiamond in the polymer is important, and may require the use of a compounding step using a twin screw extruder, a pre-combination of nanodiamond and other fillers in a milling process, or the addition of nanodiamond in a compatible solvent dispersion.  High shear mechanical mixing and/ or ultrasonics may also be applied.  Carbodeon has a number of direct experiences of polymer nanocomposite formulation so please do contact us to discuss your application.


Suitable Carbodeon materials for use in polymer nanocomposites:. 

uDiamond® Amine P  (NEW - fully amine functionalised nanodiamond powder, many thermoplastic and epoxide applications)

uDiamond® Vox P  (carboxylated nanodiamond powder, for silicone applications)

uDiamond® Hydrogen P  (hydrogen terminated nanodiamond powder)

uDiamond® Blend Nuevo  (nanodiamond-graphite mixture)

For solvent borne dispersion applications, please contact us to discuss.

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