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材料 >> 聚合物材料
聚四氟乙烯,棒, PTFE, 2.5mm直径
聚四氟乙烯,棒, PTFE, 2.5mm直径图片
品牌: Goodfellow
产地: 英国
索取资料及报价
品牌:Goodfellow
产地:英国
产品介绍
订货号包装规格
Length (Round)
645-854-79500 mm
745-606-751000 mm

产品参数

Diameter[直径]2.5mm
Length[长度]500 mm - 1000 mm
Mechanical Properties(机械性能)
Coefficient of friction0.05 - 0.20
Elongation at break ( % )400.0
Hardness - RockwellD50-55-Shore
Izod impact strength ( J m⁻¹ )160.0
Poisson's ratio0.460
Tensile modulus ( GPa )0.30 - 0.80
Tensile strength ( MPa )10.00 - 40.00
Chemical Resistance(耐化学性)
Acids - concentratedGood
Acids - diluteGood
AlcoholsGood
AlkalisGood
Aromatic hydrocarbonsGood
Greases and OilsGood
Halogenated HydrocarbonsGood
HalogensGood
KetonesGood
Physical Properties(物理性质)
Density ( g cm⁻³ )2.200
FlammabilityV-0
Limiting oxygen index ( % )95
Radiation resistancePoor
Refractive index1.380
Resistance to Ultra-violetExcellent
Water absorption - over 24 hours ( % )0.010
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )100.000 - 160.000
Heat-deflection temperature - 0.45MPa ( C )120
Heat-deflection temperature - 1.8MPa ( C )54.0
Lower working temperature ( C )-260
Specific heat ( J K⁻¹ kg⁻¹ )1000.0
Thermal conductivity ( W m⁻¹ K⁻¹ )0.25 @23℃
Upper working temperature ( C )180 - 260
Electrical Properties(电气特性)
Dielectric constant @1MHz2 - 2
Dielectric strength ( kV mm⁻¹ )50.0 - 170.0
Dissipation factor @ 1MHz0.0003 - 0.0007
Surface resistivity ( Ohm/sq )10¹⁷
Volume resistivity ( Ohmcm )10¹⁸-10¹⁹

其他参数

公差

直径≤10mm±10%
聚合物+20% / -10%
陶瓷+20% / -10%
>10mm±5%
陶瓷+20% / -10%
聚合物+20% / -10%
长度<100mm±1mm
≥100mm+5% / -1%
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