EAA (Ethylene Acrylic Acid Copolymer)
EAA (Ethylene Acrylic Acid Copolymer) – High-Performance Adhesive Resin for Packaging & Industrial Use
Ethylene Acrylic Acid (EAA) Copolymer is a specialty thermoplastic resin known for its excellent adhesion, flexibility, and chemical resistance. Supplied in imported quality, EAA is widely used in multilayer packaging, extrusion coatings, hot-melt adhesives, and specialty films. Its copolymer structure offers strong bonding to polar and non-polar substrates, making it ideal for challenging industrial applications.
EAA combines the strength of polyethylene with the polarity of acrylic acid, providing superior adhesion to metals, polyesters, polyamides, and paper substrates.
Chemical Properties:
- Chemical Name: Ethylene Acrylic Acid Copolymer
- Appearance: Off-white to light yellow granules or pellets
- Melting Point: ~90–110°C (varies by grade)
- Density: 0.93–0.95 g/cm³
- Acid Number: Typically 50–90 mg KOH/g
- Solubility: Insoluble in water; thermally processable
Applications:
- Flexible Packaging: Acts as a tie layer in multi-layer films for food and pharmaceutical packaging.
- Adhesives: Used in hot melt adhesives due to its strong bond to metals and polar surfaces.
- Extrusion Coating: Provides excellent adhesion on foil, paper, and plastic substrates.
- Industrial Films: Enhances toughness, puncture resistance, and barrier properties.
- Heat Seal Layers: Offers strong and consistent seal performance for packaging films.
Key Benefits:
- Strong Adhesion: Bonds well with aluminum, PET, PA, and other difficult substrates.
- Excellent Flexibility: Maintains integrity under bending and folding.
- Moisture & Chemical Resistance: Protects against corrosion and moisture ingress.
- Thermal Stability: Suitable for various extrusion and heat-sealing applications.
- FDA Compliance: Suitable for food-contact applications (subject to specific grade).
Safety Considerations:
- Handling: Use protective gloves and eyewear during handling. Avoid dust formation during processing.
- Storage: Store in a cool, dry place, away from direct heat, sunlight, and moisture.
- Processing: Use with appropriate temperature settings for extrusion or molding.
- Disposal: Non-hazardous waste; dispose of under local environmental regulations.