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Grade: Lexan® 8B28
Formula: PC
Form: Foil
Material: Polycarbonate
CAS Number: 25766-59-0
Commodity: Polymers
Colour:
Translucent White 82728
Lexan® 8B28 Polycarbonate films comes in 17 variations that differ in thickness, width, length and quantity. Polycarbonate films like Lexan® 8B28 feature high optical clarity, impact and heat resistance, as well as electrical insulation properties. These attributes make Lexan® polycarbonate films ideal for applications in glazing, safety screens, medical devices and electrical insulation. With its range of sizes and thicknesses, Lexan® 8B28 provides versatile solutions for engineers across industries.
Tolerances
Foil
| Thickness | ±20% |
|---|
Material Properties for Polymers
Physical Properties
| Element | Value |
|---|---|
| Abbe number | 34 |
| Flammability | V0-V2 |
| Radiation resistance | Fair |
| Refractive index | 1.584-6 |
| Resistance to Ultra-violet | Fair |
| Limiting oxygen index( % ) | 25-27 |
| Water absorption - equilibrium( % ) | 0.35 |
| Water absorption - over 24 hours( % ) | 0.1 |
| Density( gcm⁻³ ) | 1.2 |
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good-Poor |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good-Fair |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Poor |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.31 |
| Hardness - Rockwell | M70 |
| Poisson's ratio | 0.37 |
| Elongation at break( % ) | 100-150 |
| Tensile modulus( GPa ) | 2.3-2.4 |
| Izod impact strength( J m⁻¹ ) | 600-850 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | Oct-15 |
| Tensile strength( MPa ) | 55-75 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.9 |
| Dissipation factor @ 1MHz | 0.01 |
| Dielectric strength( kV mm⁻¹ ) | 15-67 |
| Surface resistivity( Ohm/sq ) | 10¹⁵ |
| Volume resistivity( Ohmcm ) | 10¹⁴-10¹⁶ |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 140 |
| Heat-deflection temperature - 1.8MPa( C ) | 128-138 |
| Lower working temperature( C ) | -135 |
| Upper working temperature( C ) | 115-130 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1200 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.19-0.22@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 66-70 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | >80 |
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