Cellulose Acetate Film

Cellulose Acetate Film is a transparent, thermoplastic material with excellent tensile strength, optical clarity, and moderate moisture resistance, making it a sustainable alternative to petroleum-based polymers. Its inherent biodegradability and compatibility with additives allow tailoring of properties such as flexibility, barrier performance, and antimicrobial functionality. Widely used in packaging, textiles, filtration, and optical devices, it also plays an important role in biomedical and electronics industries. Specific applications include food-safe wrapping films, reverse osmosis membranes for water treatment, and optical substrates in display technologies. Advances in formulation—such as incorporating lignin for improved UV and moisture resistance, or nano-crystalline cellulose for antimicrobial action—enhance its utility in high-value, eco-conscious applications. As industries shift toward circular economy models, cellulose acetate films are increasingly researched for their potential in waste valorization and bio-based manufacturing, reinforcing their significance as both a research focus and a commercial material.

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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