Lexan® 8B35 Polycarbonate Disk

Lexan® 8B35 Polycarbonate Disk is engineered for high impact resistance, optical clarity, and excellent dimensional stability, making it suitable for precision components in advanced industries. In disk form, it provides uniformity and structural consistency, essential for use in data storage, optics, and electronic systems. Industries such as automotive, aerospace, and electronics frequently employ this material due to its balance of toughness and transparency. Specific applications include optical storage substrates, protective covers in sensor systems, and display technologies requiring both clarity and durability. Research demonstrates that Lexan® polycarbonate disks undergo significant structural and optical modifications under irradiation and ion implantation, enabling advancements in hardness, wear resistance, and optical behavior. These findings highlight their dual role as both functional industrial materials and experimental research platforms. By merging adaptability with high-performance properties, Lexan® 8B35 Polycarbonate Disk holds a critical place in scientific innovation and industrial technology.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

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