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PVDF
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- Extremely high maximum operating temperature in air
- Good mechanical strength, creep resistance and stiffness
- Excellent chemical and hydrolysis resistance
- High toughness, even at low temperatures
- Good electrical insulation properties
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Polyvinylidene fluoride
PDVF is a non-reinforced, highly crystalline fluoropolymer combining good mechanical, thermal and electric properties with excellent chemical resistance.
This is a versatile material whose properties make it specifically suited for the manufacture of components in the chemical, petrol, metalworking, pharmaceutical, food, paper, textile, and nuclear industries.
Specifications
- High maximum operating temperature in air (+150 °C continuously)
- Good mechanical strength, creep resistance, and stiffness (better than other fluoropolymers)
- Excellent chemical and hydrolysis resistance
- High toughness, even at low temperatures
- Good electrical insulation properties
- Good wear resistance and good sliding properties
- Good dimensional stability
- Physiologically inert
- Remarkable resistance to UV radiation and weathering
- Low intrinsic flammability
- Good resistance to energy-rich radiation (better than other fluoropolymers)
| Properties | ISO / (IEC) standard | Unit of measurement | Value |
| General properties | |||
| Colour | natural | ||
| (white) | |||
| Density | 1183-1 | g/cm3 | 1.78 |
| Water absorption: | |||
| - after 24/96 h immersion in | 62 | mg | 1/3 |
| water at 23 °C | |||
| 62 | % | 0.01/0.03 | |
| - at saturation in air of 23 °C / 50% RH | -- | % | 0.05 |
| - at saturation in water of 23 °C | -- | % | 0.05 |
| Thermal properties | |||
| Melting temperature | 11357-1/-3 | °C | 175 |
| Glass transition temperature | 11357-1/-2 | °C | -- |
| Thermal conductivity at 23 °C | - | W (K.m) | 0.19 |
| Average coefficient of linear thermal expansion: | |||
| - average value between 23 and 100 °C | - | m/(m.K) | 130x10-6 |
| - average value between 23 and 150 °C | - | m/(m.K) | 145x10-6 |
| - average value above 150 °C | - | m((m.K) | -- |
| Deflection temperature under load: | |||
| - method A: 1.8 MPa | 75-1/-2 | °C | 105 |
| Max. operating temperature in air: | |||
| - for short periods | - | °C | 150 |
| - continuously: min. 20.000 h | - | °C | 140 |
| Min. operating temperature | -- | ||
| Flammability: | |||
| “Oxygen index” | 4589-1/-2 | % | 44 |
| - according to method UL 94 | - | - | V-0/V-0 |
| (1.5/3 mm thickness) | |||
| Mechanical properties at 23 °C | |||
| Tension test | |||
| - Tensile stress at yield / Ultimate tensile strength | 527-1/-2 | MPa | 50/- |
| - Tensile strain at break | 527-1/-2 | % | >20 |
| - Tensile modulus of elasticity | 527-1/-2 | MPa | 2200 |
| Compression test | |||
| - Compressive stress at 1% nominal strain | 604 | MPa | 17 |
| - Compressive stress at 2% nominal strain | 604 | MPa | 32 |
| Charpy impact strength - unnotched | 179-1/1eU | kJ/m2 | Natural rubber (NR) |
| Charpy impact strength - notched | 179-1/1eA | kJ/m2 | 10 |
| Ball indentation hardness | 2039-1 | N/mm2 | 110 |
| Rockwell hardness | 2039-2 | - | M 75 |
| Electrical properties at 23 °C | |||
| Dielectric strength | (60243-1) | kV/mm | 18 |
| Volume resistivity | (60093) | Ohm.sq | >1014 |
| Surface resistivity | ANSI/ESD | Ohm.sq | <1014 |
| STM 1111 | |||
| Relative permittivity Â: | (60250) | -- | 7.4 |
| at 100 Hz | |||
| at 1 MHz | (60250) | -- | 6 |
| Dielectric dissipation factor. tan ‰: | (60250) | -- | 0.025 |
| at 100 Hz | |||
| at 1 MHz | (60250) | -- | 0.165 |
| Comparative Tracking Index | (60112) | -- | 600 |
| (CTI) |
Although the information provided in this product data sheet is confirmed by reliable research, POLITECNICA CETAI shall not take any responsibility for the application, processing or use of such information.
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