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Kynar® 721
| Category: | PVDF , Polyvinylidene Fluoride |
| Manufacturer: | Arkema |
| Trademark: | Kynar® |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | 0z0gDC_Kynar-721.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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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. |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.77 to 1.79 | g/cm³ | ASTM D792 |
| Melt Mass-Flow Rate (MFR) | 5.0 to 27 | g/10 min | ASTM D1238 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Durometer Hardness (Shore D, 23°C) | 76 to 80 | ASTM D2240 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength | ASTM D638 | ||
| Yield, 23°C | 44.8 to 55.2 | MPa | |
| Break, 23°C | 34.5 to 55.2 | MPa | |
| Tensile Elongation (Break, 23°C) | 20 to 100 | % | ASTM D638 |
| Flexural Modulus (23°C) | 1380 to 2310 | MPa | ASTM D790 |
| Flexural Strength (23°C) | 58.6 to 75.8 | MPa | ASTM D790 |
| Compressive Strength (23°C) | 68.9 to 103 | MPa | ASTM D695 |
| Thermal | Nominal Value | Unit | Test Method |
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| Peak Melting Temperature | 165 to 172 | °C | ASTM D3418 |
| Electrical | Nominal Value | Unit | Test Method |
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| Volume Resistivity 1(20°C) | 2.0E+14 | ohms·cm | ASTM D257 |
| Fill Analysis | Nominal Value | Unit | Test Method |
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| Melt Viscosity (232°C, 100 sec^-1) | 600 to 1200 | Pa·s | ASTM D3835 |
| Note Message | |
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| 1 . | 65% R.H. |
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|---|---|---|---|
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| OmniLon™ PA6 GR20 | OMNI Plastics, LLC | Nylon 6 | OmniLon™ |
| Edgetek™ X ET3300-8031 NHFR NC001 | PolyOne Corporation | PBT | Edgetek™ |
