商品代碼:3964742

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    供應ETFE 207 美國杜邦
    商品代碼: 3964742
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    ETFE 熱塑性氟塑料

    DuPont™ Tefzel® 207 Resin Modified ETFE
    Categories:Polymer;Thermoplastic;Fluoropolymer;ETFE/ECTFE

     

    Material Notes:DuPont™ Tefzel ® 207 fluoropolymer is a special-purpose resin available in translucent, 2.5 mm (0.1 in) pellets. Compared with other grades of Tefzel ®, it has a higher flow rate but still maintains a service temperature of 150°C (302°F).

    Tefzel ® 207 and the other Tefzel ® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are high-performance resins that can be processed at relatively high rates compared with fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties. The relatively high flow rate (see Table 1) of Tefzel ® 207 makes it uniquely suitable for high-speed processing, especially for extruded coatings and injection molding of slender, thin-walled or intricate shapes. Properly processed products made from neat Tefzel ® 207 are inert to most solvents and chemicals, hydrolytically stable, and weather resistant. Recommended upper service temperature is 150°C (302°F); useful properties are retained at cryogenic ranges. The level and stability of dielectric properties are excellent and the flame rating is V-0 by the UL94 method. Mechanical properties include outstanding impact strength, cut-through, and abrasion resistance.

    Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.

    Applications

    Tefzel ® 207 is ideal for many end products, including electrical components such as sleeving, coil forms, sockets, connectors, and switches; lab ware such as tubing, valves, containers, and fasteners; battery or instrument components that require chemical inertness; and mechanical parts. The high melt flow rate of this product makes it ideal for injection molding and thin wall extrusion.

     

    Key Words:Ethylene Tetrafluoroethylene Copolymer; DuPont Fluoroproducts
    Physical PropertiesMetricEnglishCommentsMechanical PropertiesMetricEnglishCommentsElectrical PropertiesMetricEnglishCommentsThermal PropertiesMetricEnglishCommentsProcessing PropertiesMetricEnglishCommentsDescriptive Properties
    Specific Gravity 1.70g/cc1.70g/ccASTM D792
    Water Absorption 0.00700 %0.00700 %24 hours; ASTM D570
     
    Hardness, Shore D 7272ASTM D2240
    Tensile Strength, Ultimate 40.0MPa5800psiASTM D3159
    Elongation at Break 300 %300 %ASTM D3159
    Flexural Modulus 1.00GPa145ksiASTM D790
    Coefficient of Friction 0.300 - 0.4000.300 - 0.400ASTM D1894
    Izod Impact, Notched NBNBASTM D256
     
    Volume Resistivity >=1.00e+17ohm-cm>=1.00e+17ohm-cmASTM D257
    Surface Resistivity per Square >=1.00e+15ohm>=1.00e+15ohmASTM D257
    Dielectric Constant 2.60 - 2.80
    @Frequency 1e+6 Hz
    2.60 - 2.80
    @Frequency 1e+6 Hz
    ASTM D150
    Dielectric Strength 66.92914kV/mm
    @Thickness 0.250 mm
    1700.000kV/in
    @Thickness 0.00984 in
    ASTM D149
    Dissipation Factor 0.00900
    @Frequency 1e+6 Hz
    0.00900
    @Frequency 1e+6 Hz
    ASTM D150
    Arc Resistance 122sec122secASTM D495
     
    Melting Point 267°C513°FASTM D3418
    Maximum Service Temperature, Air 150°C302°F 
    Flammability, UL94 V-0V-0 
    Oxygen Index 30.0 - 32.0 %30.0 - 32.0 %Limiting Oxygen Index; ASTM D2863
     
    Drying Temperature 302-323°C576-613°FCure Temperature
     
    20% Hydrochloric Acid Transmission, g/100sq in.<0.02 
    50% Sodium Hydroxide Transmission, g/100sq in.<.02 
    Acetic Acid Transmission, g/100sq in.0.41 
    Acetone Transmission, g/100sq in.0.95 
    Acetophenone Transmission, g/100sq in.0.5 
    Benzene Transmission, g/100sq in.0.64 
    Carbon Tetrachloride Transmission, g/100sq in.0.31 
    Chemical/Solvent ResistanceExcellent 
    Ethyl Acetate Transmission, g/100sq in.0.76 
    Folding Endurance, # cycles, .18-.20 mm10-27 E3 
    Heat of Combustion J/g13700ASTM D240
    Hexane Transmission, g/100sq in.0.56 
    Piperidine Transmission, g/100sq in.0.04 
    Red Fuming Nirtric Acid Transmission, g/100sq in.7.5-1.4 
    Salt Spray Resistance on aluminum, Hours1000 
    Sulfuric Acid Transmission, g/100sq in.0.00001 
    Water Transmission, g/100sq in.0.4 
    Weather Resistance15Years unaffected in Florida Exposure


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