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Formula: PVF
Form: Coil
Material: Polyvinyl fluoride (PVF)
CAS Number: 24981-14-4
Commodity: Polymers
PVF Coil is a roll of polyvinyl fluoride film, a thermoplastic fluoropolymer valued for its chemical resistance, weatherability, and electrical insulation properties. In coil form, it provides continuous lengths for lamination, wrapping, or surface protection. Industries such as aerospace, electrical engineering, and architecture rely on PVF coils for applications where long-term durability, resistance to UV degradation, and flame resistance are essential. Specific uses include protective outer layers for aircraft interiors, insulation in flexible electrical cables, and weatherproof laminates in building cladding systems. In research, PVF coils are studied for their dielectric properties, resistance to environmental aging, and role in high-performance composites. Its combination of lightweight stability, chemical resistance, and ease of processing ensures PVF coil remains a key material in protective coatings, laminates, and advanced electrical insulation systems.
Tolerances
Coil
| Thickness | ±20% |
|---|
Material Properties for Polymers
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 8 |
| Dissipation factor @ 1kHz | 0.04 |
| Dielectric strength( kV mm⁻¹ ) | 20 |
| Volume resistivity( Ohmcm ) | 10¹³ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Refractive index | 1.46 |
| Resistance to Ultra-violet | Excellent |
| Limiting oxygen index( % ) | 35 |
| Water absorption - over 24 hours( % ) | 0.05 |
| Density( gcm⁻³ ) | 1.37-1.39 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | D80 - Shore |
| Poisson's ratio | 0.4 |
| Elongation at break( % ) | 90-250 |
| Tensile modulus( GPa ) | 2.1-2.6 |
| Izod impact strength( J m⁻¹ ) | 180 |
| Tensile strength( MPa ) | 55-110 |
| Tear strength( N mm⁻¹ ) | 130-200 (initial) |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 120 |
| Heat-deflection temperature - 1.8MPa( C ) | 80 |
| Lower working temperature( C ) | -70 |
| Upper working temperature( C ) | 150-200 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1000-1800 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 50-97 |
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