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CAS Number: 24937-79-9
Grade: Piezo-electric Film
Material: PVDF
Form: Disk
Commodity: Polymers
Formula: PVDF
Orientation:
Uni-axially Oriented
The Piezo-electric Film PVDF Disk from Goodfellow is a thin, flexible Disk made of polyvinylidene fluoride that exhibits the piezoelectric effect. With 42 variations, it’s available in a range of configurations to meet different application needs. The disk’s piezoelectric properties allow it to generate an electrical charge in response to applied mechanical stress. Piezo-electric Film PVDF Disks find use in a variety of acoustic, vibration, and pressure sensing applications, as well as energy harvesting devices that convert ambient mechanical energy into electrical energy. The flexibility and thin profile of these disks also make them well-suited for integration into wearable sensors or MEMS devices.
Tolerances
Disk
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Fair |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Fair |
| Halogens | Good-Poor |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.2-0.4 |
| Hardness - Rockwell | R77-83 |
| Poisson's ratio | 0.34 |
| Elongation at break( % ) | 50 |
| Tensile modulus( GPa ) | 01-Mar |
| Izod impact strength( J m⁻¹ ) | 120-320 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | 24 |
| Tensile strength( MPa ) | 25-60 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 8.4 |
| Dissipation factor @ 1kHz | 0.06 |
| Dielectric strength( kV mm⁻¹ ) | 13 |
| Surface resistivity( Ohm/sq ) | 10¹³ |
| Volume resistivity( Ohmcm ) | 10¹⁴ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Fair |
| Refractive index | 1.42 |
| Resistance to Ultra-violet | Excellent |
| Limiting oxygen index( % ) | 44 |
| Water absorption - over 24 hours( % ) | 0.04 |
| Density( gcm⁻³ ) | 1.76 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 120-150 |
| Heat-deflection temperature - 1.8MPa( C ) | 80-115 |
| Lower working temperature( C ) | -40 |
| Upper working temperature( C ) | 135-150 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.1-0.25@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 80-140 |
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