供应ETFEDuPont Tefzel HT-2004

Property Comparison of DuPont? Tefzel ? HT-2004 Versus Other High Performance Plastics
25% GR 33% GR 20% GR Polyaryl-
Tefzel ? HT-2004 Nylon Polysulfone sulfone
Physical Property
Specific Gravity 1.86 1.38 1.38 1.36
Tensile Strength, MPa (psi) 83 (12,000) 124 (18,000) 90 (13,000) 90 (13,000)
Elongation, % 9 4* 2 13
Flex Modulus, MPa (psi) 6,550 (950,000) 6,205 (900,000)* 5,171 (750,000) 2,758 (400,000)
Impact Strength, (Notched Izod)
ft-lb/in @ 23°C (73°F) 7.0 2.1 1.0 3.0
@ –40°C (–40°F) >2.5 1.9 1.0 —
Thermal Property
Distortion Temp @ 264 psi, °C (°F) 210 (410) 249 (480) 177 (350) 274 (525)
Coefficient of Linear Thermal
Expansion, in/in/°F 0.4 x 10–5 1.3 x 10–5 1.7 x 10–5 2.6 x 10–5
Electrical, Chemical, Wear and
Friction Property
Chemical Resistance to:
Solvents Excellent Excellent Poor Good
Acids Excellent Fair Very Good Excellent
Bases Excellent Good Very Good Excellent
Wear Factor (in3 min/ft·lb·hr) 16 x 10–10 200 x 10–10 — —
Coefficient of Friction
10 fpm, 100 psi 0.31 0.48 — —
Dielectric Strength
@ 125 mil v/mil 410 400 425 350