Comparative Properties of High Temperature Resins

Polymer Polymer Morphology Glass Transition Temperature, TG Continuous Use Temperature, CTU Heat Deflection Temperature, HDT @ 264 PSI
Polymer Only Polymer + 30GF
PSUL Amorphous 370 °F(190 °C) 300-325 °F(150-160 °C) 345 °F (175 °C) 365 °F (185 °C)
PEI Amorphous 420 °F(215 °C) 350-375 °F (175-190 °C) 390 °F (195 °C) 410 °F (210 °C)
PES Amorphous 425 °F(220 °C) 350-375 °F (175-190 °C) 395 °F (200 °C) 420 °F (215 °C)
PPSU Amorphous 425 °F(220 °C) 300-350 °F(150-180 °C) 395 °F (200 °C) 415 °F (215 °C)
PPS Semi-Crystalline 190 °F(90 °C) 400-450 °F (200-230 °C) 275 °F (135 °C) 510 °F (265 °C)
PPA-WM Semi-Crystalline 200°F(95 °C) 275-325 °F(135-160°C) 250°F (120 °C) 530°F (275 °C)
PPA Semi-Crystalline 255 °F(125 °C) 300-350 °F (150-175 °C) 230 °F (110 °C) 520 °F (270 °C)
PEEK Semi-Crystalline 290 °F(145 °C) 400-450 °F (200-230 °C) 320 °F (160 °C) >570 °F (>300 °C)
PEK Semi-Crystalline 305 °F(150 °C) 400-450 °F (200-230 °C) 330 °F(165 °F) >600 °F(>315 °C)
TPI Semi-Crystalline 480 °F(250 °C) 450-550 °F(230-285 °C) 500°F(260 °C) >600 °F(>315 °C)

 

Definitions

  • Glass Transition Temperature (Tg) — Temperature at which a material goes from a glassy state to a rubbery state. Key property changes include softening, reduction in density, and large drop in strength and modulus.
  • Continuous Use Temperature — Function of the thermal breakdown of the polymer. Difficult to increase by adjusting additives.
  • Heat Deflection Temperature — Temperature at which a material will deflect a specified amount at a specified load. Good indicator of short term/low load thermal capabilities.

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