Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
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Bambu Lab PAHT-CF, TDS V3.0, printed specimens X-Y, dry state; nozzle 290 °C, bed 100 °C, 100 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing.
Plastic LCP GF30
Sumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values.
SUMIKASUPER LCP Technical Note, Version 04 (2023)Sumitomo Chemicalarchived copyPlastic LCP GF30 · Ultimate tensile strength: tensile strength (ISO 527)Plastic LCP GF30 · Flexural strength: typical (ISO 178)Plastic LCP GF30 · Elongation at break: tensile elongation (ISO 527)Plastic LCP GF30 · Young's modulus (stiffness): tensile modulus (ISO 527)Plastic LCP GF30 · Density: typicalPlastic LCP GF30 · Thermal conductivity: hot disk (ISO 22007-2), temperature not statedPlastic LCP GF30 · Thermal expansion: flow direction (MD), mean 50-150 °CPlastic LCP GF30 · Specific heat: ASTM E1269, temperature not statedPlastic LCP GF30 · Max service temperature: HDT 1.8 MPa (ISO 75)
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
FDM PAHT-CF is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
Is FDM PAHT-CF stronger than Plastic LCP GF30?
Plastic LCP GF30 is stronger: its tensile strength is 115 MPa against 92 MPa for FDM PAHT-CF (25%).
Which is lighter, FDM PAHT-CF or Plastic LCP GF30?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 1,610 kg/m³ for Plastic LCP GF30.
Which is stiffer, FDM PAHT-CF or Plastic LCP GF30?
Plastic LCP GF30 is stiffer: Young's modulus 11.5 GPa against 3.86 GPa for FDM PAHT-CF, so the same part in Plastic LCP GF30 deflects less under the same load.
Which is lighter for the same job, FDM PAHT-CF or Plastic LCP GF30?
For the same stiffness or strength: FDM PAHT-CF is lighter for a stiff panel or plate, strong rod or tie, strong beam, strong panel or plate; Plastic LCP GF30 is lighter for a stiff rod or tie (tension), stiff beam (bending).
Part that must be
FDM PAHT-CF
Plastic LCP GF30
Stiff rod or tie (tension)
1.96x heavier
lighter
Stiff beam (bending)
14% heavier
lighter
Stiff panel or plate
lighter
6% heavier
Strong rod or tie
lighter
22% heavier
Strong beam
lighter
31% heavier
Strong panel or plate
lighter
36% heavier
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which is more ductile, FDM PAHT-CF or Plastic LCP GF30?
FDM PAHT-CF stretches further before it breaks: 8.4% elongation at break against 1.5% for Plastic LCP GF30.
Thermal
Which handles higher temperatures, FDM PAHT-CF or Plastic LCP GF30?
Plastic LCP GF30 does: 288 °C against 170 °C for FDM PAHT-CF.