Piezo-electric PVDF Coil

Piezo-Electric Film PVDF Coil combines the flexibility and chemical resistance of polyvinylidene fluoride with strong piezoelectric and pyroelectric properties, enabling mechanical-to-electrical energy conversion in a continuous roll format. This configuration is ideal for large-scale fabrication of sensors, actuators, and energy-harvesting systems. Industries use PVDF coil for structural health monitoring strips, distributed vibration sensors, and roll-to-roll printed transducers. Specific applications include flexible pressure-sensing layers in robotics, continuous vibration detection tapes for industrial equipment, and thin-film energy harvesters embedded in flooring. In research, PVDF coil supports studies into high-throughput piezoelectric device manufacturing, optimization of poling processes for enhanced signal output, and development of multi-functional smart laminates. Its combination of form factor, electromechanical efficiency, and environmental stability ensures broad applicability in advanced engineering and sensing technologies.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Coil

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