LL 0640 AA is a linear low-density polyethylene copolymer, which incorporates butane-1 as the comonomer. This grade is specifically designed for the cast extrusion process and offers a blend of mechanical and optical properties that are advantageous for flexible film applications.
 
Key Features
Good Mechanical Properties: Offers a balance of strength and flexibility, making it ideal for wrapping and packaging applications.
Excellent Optical Properties: Provides low haze and high gloss, ensuring that the final product has good clarity and attractiveness.
Cast Extrusion Specialization: Optimized for the cast extrusion process, ensuring efficient and high-quality film production.
 
Applications
Hand Wrap Stretch Film: Ideal for the production of hand wrap films used in packaging and securing goods.
Cast Stretch Film: Suitable for creating stretch films that are used to wrap and secure pallets and other large items.
Display Packaging: Perfect for packaging that requires good visibility of the contents inside, enhancing product presentation.
 
Typical Properties
Melt Flow Index (MFI) (190°C/2.16Kg): 4.0 gr/10Min (ASTM D 1238), indicating how easily the material can flow under pressure.
Density: 0.930 gr/cm³ (ASTM D 1505), impacting the film's strength and tear resistance.
Haze: 2% (ASTM D 1003), reflecting the clarity of the film.
Gloss (45°): 55% (ASTM D 2457), measuring the shininess of the film surface.
 
Additives
Antioxidant: Included, helping to prevent degradation during processing and lifespan of the film.
Anti Block: Not included, focusing on maintaining the transparency and gloss of the film.
Slip Agent: Not included, allowing for customized adjustments based on specific application needs.
 
Mechanical Properties
Dart Drop Impact: 65 grams (ASTM D 1709(A)), indicating the film's resistance to puncture.
Tear Strength MD/TD: 40/100 grams/25µm (ASTM D 1922), demonstrating the film's resistance to tearing in both machine and transverse directions.
Tensile Strength at Yield MD/TD: 12/12 MPa (ASTM D 882), showing the stress at which the material begins to deform.
Tensile Strength at Break MD/TD: 30/25 MPa (ASTM D 882), showing the maximum stress the material can withstand before breaking.
 
Thermal Properties
Vicat Softening Temperature: 105°C (ASTM D 1525), indicating the temperature at which the material begins to soften under load.
 
Conclusion
LLDPE LL 0640 AA is engineered for high-performance film applications, offering superior mechanical and optical properties ideal for stretch films and packaging solutions. Its tailored formulation makes it highly effective in producing films that require durability, clarity, and flexibility, making it a top choice for manufacturers in the packaging industry.