Fluoropolymers Teflon ® / Tefzel ® are DuPont registered trademarks FH 8 Oct 02 / page 1 TYPICAL PROPERTIES MOLECULAR WEIGHT COMONOMER CONTENT MELTING.

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Presentation transcript:

Fluoropolymers Teflon ® / Tefzel ® are DuPont registered trademarks FH 8 Oct 02 / page 1 TYPICAL PROPERTIES MOLECULAR WEIGHT COMONOMER CONTENT MELTING POINT (ASTM D-4591) MELT VISCOSITY MELT FLOW RATE* (ASTM D-1238) UNITS % WEIGHT ºC Pa. s g/10 min PTFE < NO FLOW PFA x x FEP x x ETFE x x *Measured at 372 ºC, but ETFE at 297 ºC, 5 kg weight and mm die

Fluoropolymers Teflon ® / Tefzel ® are DuPont registered trademarks FH 8 Oct 02 / page 2 Electrical properties RELATIVE PERMITTIVITY (ASTM D-150) DISSIPATION FACTOR (ASTM D-150) ARC RESISTANCE (ASTM D-495*) VOLUME RESISTIVITY (ASTM D-257) SURFACE RESISTIVITY (ASTM D-257) UNITS 1 kHz- 1 1 MHz s . m  PTFE > 300 > PFA > 180 > > FEP > 300 > ETFE > 72 > * Stain Less Steel electrodes

Fluoropolymers Teflon ® / Tefzel ® are DuPont registered trademarks FH 8 Oct 02 / page 3 PEAK MELTING TEMP. (ASTM D 4591) SERVICE TEMP. ( h) FLAME CLASS (UL94) LIMITING OXYGEN INDEX (ISO 4589) HEAT OF COMBUSTION (ISO 1716) UNITS ºC % MJ/kg PTFE V-0 > PFA V-0 > FEP V-0 > ETFE V Thermal properties

Fluoropolymers Teflon ® / Tefzel ® are DuPont registered trademarks FH 8 Oct 02 / page 4 DENSITY (ISO 1183) TENSILE STRENGTH (ISO 12086) ULTIMATE ELONGATION (ISO 12086) FLEXURAL MODULUS (ISO 178) FLEX LIFE (D 2176) (M.I.T. 0.2 mm, 270º flex) IMPACT RESISTANCE 23 ºC (ASTM D-256) - 54 ºC HARDNESS (ISO 868) COEFFICIENT OF FRICTION (dynamic, ASTM D 1894) UNITS g/cm 3 MPa % MPa Cycles to failure J/m Shore D PTFE > 90 x D PFA No break 155 D FEP No break 158 D ETFE No break > D Mechanical properties

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