Bioplastics
Cellulose Acetate Film Grade K — Cellulose Acetate, Film Grade K
Cellulose Acetate Film Grade K is a transparent thermoplastic derived from wood pulp or cotton linters. It offers excellent clarity, stiffness, and a pleasant feel, making it suitable for high-quality film applications, photographic film bases, and decorative elements. It is biodegradable under specific conditions.
CAFILM-CA-K
Manufacturers
2
Grades
2
Applications
5
Equivalents
1
Physical Properties
- Density
- 1.30 g/cm³
- Water Absorption (24h)
- 2.0 %
- Transparency
- Excellent
- Shrinkage
- 1.0 - 2.0 %
Mechanical Properties
- Young's Modulus
- 2.5 GPa
- Tensile Strength
- 40 MPa
- Elongation at Break
- 15.0 %
- Impact Strength (Izod)
- 0.5 J/cm
Thermal Properties
- Glass Transition Temperature
- 100-120 °C
- Melting Point
- None (degrades)
- Continuous Service Temperature
- 60 °C
- Heat Deflection Temperature
- 60 °C
Electrical Properties
- Dielectric Constant
- 3.5
- Volume Resistivity
- 10¹⁰ Ω·cm
- Dielectric Strength
- 15 kV/mm
Chemical Resistance
- Acids
- Poor resistance
- Bases
- Poor resistance
- Solvents
- Soluble in esters, ketones, and chlorinated hydrocarbons
- UV Resistance
- Moderate
Sustainability
- Recyclability
- Biodegradable (compost, requires specific conditions)
- Recycling Code
- 7 (Other)
- Carbon Footprint
- Moderate
Manufacturing compatibility
Film ExtrusionInjection MoldingThermoforming
Applications
Photographic Film Base
Packaging Films
Eyeglass Frames
Tool Handles
Decorative Laminates
Available grades
CA-FILM-K-101CA-FILM-K-202