Grafix Cellulose Acetate Film

Grafix Cellulose Acetate Film is a versatile polymer film derived from cellulose acetate, recognized for its exceptional optical clarity and balanced mechanical properties. It is highly valued for its low moisture absorption and stable retardation characteristics, which help prevent haze formation even under challenging environmental conditions. This makes it a material of choice in industries such as electronics, packaging, and imaging technologies, where dimensional stability and transparency are critical. In display technologies, it plays a key role in liquid crystal displays (LCDs) as a substrate and polarizer support, enhancing viewing angles and image uniformity. In biomedical and research applications, it is often employed as a membrane, filter medium, or backing layer for advanced coatings. Its adaptability in printing, lamination, and coating processes also benefits optical films, archival materials, and specialty industrial uses. By combining high performance with processability, Grafix Cellulose Acetate Film continues to drive innovation in optical, electronic, and biomedical engineering, making it an indispensable material in both scientific research and industrial product development.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness		±20%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Poor
Acids - dilute	Good-Poor
Alcohols	Fair-Poor
Alkalis	Poor
Aromatic hydrocarbons	Good-Poor
Greases and Oils	Good
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Poor

Electrical Properties

Element	Value
Dielectric constant @1MHz	~5
Dissipation factor @ 1kHz	0.06
Dielectric strength( kV mm⁻¹ )	11
Volume resistivity( Ohmcm )	5 x 10¹²

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Fair
Refractive index	1.49
Resistance to Ultra-violet	Fair
Limiting oxygen index( % )	19
Water absorption - over 24 hours( % )	1.9-7
Density( gcm⁻³ )	1.3

Mechanical Properties

Element	Value
Hardness - Rockwell	34-125
Tensile modulus( GPa )	01-Apr
Izod impact strength( J m⁻¹ )	100-450
Abrasive resistance - ASTM D1044( mg/1000 cycles )	65
Tensile strength( MPa )	12-110

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	52-105
Heat-deflection temperature - 1.8MPa( C )	48-86
Lower working temperature( C )	-20
Upper working temperature( C )	55-95
Specific heat( J K⁻¹ kg⁻¹ )	1200-1900
Thermal conductivity( W m⁻¹ K⁻¹ )	0.16-0.36@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	80-180