Piezo-electric PVDF Metallized Film Disk

Grade: Piezo-electric

Formula: PVDF

Form: Metallized Film

Material: Polyvinylidene fluoride (PVDF)

CAS Number: 24937-79-9

Commodity: Polymers

Piezo-electric PVDF Metallized Film Disk is a product in the Goodfellow range of thin film products. These disks are made of polyvinylidene fluoride (PVDF) polymer with metallized electrodes, giving them piezoelectric properties. This means they generate electrical charge when mechanically stressed. With over 60 size variations, these disks have applications in acoustic transducers, vibration sensors, and energy harvesting devices. The lightweight polymer construction also makes them suitable for portable and wearable electronics needing piezoelectric components.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Metallized Film

Thickness		±10%

Disk

Diameter		±0.5mm

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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Piezo-electric PVDF Metallized Film Disk

Tolerances

Material Properties for Polymers