食品级PTFE铁氟龙美国杜邦7A

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商品详细描述
供应食品级PTFE铁氟龙美国杜邦7A 美国杜邦PTFE 泰氟龙
特氟龙PTFE 7A性能特性:符号食品接触相关规定 良好的耐化学性 良好的刚性 高延展性 低摩擦 低黑烟排放 耐溶剂 低烟释放


PTFE 7A物性数据:

Physical Properties Metric Comments
Specific Gravity  2.16 g/cc ASTM D4894
Bulk Density  0.460 g/cc ASTM D4894
Water Absorption  <= 0.0100 % 24 hours; ASTM D570
Particle Size  34.0 µm ASTM D4894
Linear Mold Shrinkage  0.0340 cm/cm at preform pressure of 35 Mpa; ASTM D4894
Mechanical Properties Metric Comments
Hardness, Shore D  50.0 - 65.0 ASTM D2240
Tensile Strength, Ultimate  34.5 MPa ASTM D4894
Elongation at Break  375% ASTM D4894
Flexural Modulus  0.496 GPa ASTM D790
Coefficient of Friction  0.0500 - 0.100 ASTM D 1894
Izod Impact, Notched  1.89 J/cm ASTM D256
Electrical Properties Metric Comments
Volume Resistivity  >= 1.00e+18 ohm-cm ASTM D257
Surface Resistivity per Square  >= 1.00e+18 ohm ASTM D257
Dielectric Constant  2.1 ASTM D150
@Frequency 1e+6 Hz
Dielectric Strength  18.0 kV/mm 100 micrometers film; ASTM D149
Dissipation Factor  <= 0.000100 ASTM D150
@Frequency 1e+6 Hz
Arc Resistance  >= 300 sec ASTM D495
Thermal Properties Metric Comments
Melting Point  317 - 337 °C ASTM D4894
Flammability, UL94  V-0
Oxygen Index  >= 95.0 % Limiting Oxygen Index; ASTM D2863
Processing Properties Metric Comments
Drying Temperature  379 - 429 °C Cure Temperature
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