Kynar® 720

Category: PVDF , Polyvinylidene Fluoride
Manufacturer: Arkema
Trademark: Kynar®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: ATMGmW_Kynar-720.pdf
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KYNAR® 720 is a semi-crystalline low molecular weight pelletized polymer of vinylidene fluoride. It is a versatile engineering plastic with an outstanding balance of physical and chemical properties which qualify it for high performance service in a wide range of applications. It is a thermoplastic fluoropolymer capable of being fabricated in standard processing equipment. The molecular weight and molecular weight distribution have been carefully tailored to supply a grade suitable for a variety of processing requirements and end-use applications.

KYNAR® 720 is recommended for fine extrusion operations such as monofilament and thin, flat, and blown film. It is also suitable for injection molding applications where very thin cross-sections for intricate design require excellent melt flow characteristics. KYNAR® 720 is also suggested for coextrusion of composite constructions and as a base for filled or alloyed KYNAR® compounds.

The powder form of this resin grade is available as KYNAR® 721 PVDF.
General Information
Features
  • Low Molecular Weight
  • Semi Crystalline
Uses
  • Blown Film
  • Film
  • Thin-walled Parts
Forms
  • Pellets
Processing Method
  • Extrusion
  • Injection Molding
Multi-Point Data
  • Isothermal Stress vs. Strain (ISO 11403-1)
  • Secant Modulus vs. Strain (ISO 11403-1)
  • Specific Volume vs Temperature (ISO 11403-2)
  • Viscosity vs. Shear Rate (ISO 11403-2)
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.77 to 1.79g/cm³ASTM D792
Melt Mass-Flow Rate (MFR) 5.0 to 27g/10 minASTM D1238
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D, 23°C)76 to 80ASTM D2240
MechanicalNominal ValueUnitTest Method
Tensile Strength ASTM D638
    Yield, 23°C 44.8 to 55.2MPa
    Break, 23°C 34.5 to 55.2MPa
Tensile Elongation (Break, 23°C)20 to 100%ASTM D638
Flexural Modulus (23°C)1380 to 2310MPaASTM D790
Flexural Strength (23°C)58.6 to 75.8MPaASTM D790
Compressive Strength (23°C)68.9 to 103MPaASTM D695
ThermalNominal ValueUnitTest Method
Peak Melting Temperature 165 to 172°CASTM D3418
ElectricalNominal ValueUnitTest Method
Volume Resistivity 1(20°C)2.0E+14ohms·cmASTM D257
Fill AnalysisNominal ValueUnitTest Method
Melt Viscosity (232°C, 100 sec^-1)600 to 1200Pa·sASTM D3835
Note Message
1 .65% R.H.
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