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Formula: PVDF
Form: Disk
Material: Polyvinylidene fluoride (PVDF)
CAS Number: 24937-79-9
Commodity: Polymers
The PVDF Disk is a fluoropolymer product within Goodfellow's extensive range of plastic disks. With 48 sizes available, they offer excellent chemical resistance as well as good mechanical strength and low friction properties. PVDF disks are used in chemical processing equipment as valve seats and bearings. They are also ideal as electrical insulators and chemical-resistant liners in the chemical and pharmaceutical industries.
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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Piezo-electric Film PVDF Film Grade: Piezo-electric Film
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Length 2: 100mm
Orientation: Uni-axially Oriented
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PVC (Unplasticized) Film Formula: UPVC
Thickness: 0.2mm
Length 1: 300mm
Length 2: 300mm
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