Lupolen 2420D is a high-performance, non-additive LDPE known for its high melt strength and excellent processing characteristics, making it particularly effective for blown film extrusion used in flexible packaging. This resin is provided in pellet form, facilitating easy handling and processing across various manufacturing setups.
 
Product Description
Type: Low-Density Polyethylene (LDPE)
Features: Lupolen 2420D offers increased stability during the extrusion of blown films, making it ideal for applications requiring durable and flexible packaging solutions. It is designed to enhance the bubble stability, which is critical in the film blowing process.
 
Main Applications
Agricultural Film: Suitable for creating tough films that withstand adverse weather conditions, perfect for agricultural applications.
Bags & Pouches: Ideal for producing strong, flexible bags and pouches commonly used in the retail and grocery sectors.
Heavy Duty Packaging: Tailored for use in industrial wraps and other applications requiring robust packaging solutions.
Liner Film: Utilized in applications that demand films with high tear resistance and durability.
Shrink Film: Appropriate for packaging that needs to tightly conform to the contours of goods.
Stretch Hood: Known for its excellent stretchability and strength, making it suitable for palletizing goods.
 
General Features
Good Processability: Ensures easy processing during film production, contributing to the smoothness and aesthetic quality of the films.
Good Tear Strength and Toughness: Prevents films from tearing or being punctured easily while maintaining flexibility under stress.
 
Physical & Mechanical Characteristics
Melt Flow Rate (MFR): 0.25 g/10 min at 190°C/2.16 kg, reflecting stable melt behavior.
Density: 0.923 g/cm³, indicating optimal flexibility and strength.
Tensile Modulus: 260 MPa, showing significant mechanical stiffness.
 
Film-Specific Properties
Dart Drop Impact Strength: 250 g, demonstrating good impact resistance.
Tensile Strength: MD = 27 MPa, TD = 25 MPa.
Tensile Strain at Break: MD = 200%, TD = 500%, showcasing the material's elasticity and resistance to break under stress.
Optical Properties: Haze <14%, ensuring clarity in packaging.
 
Processing Parameters
Optimum Extrusion Temperatures: 170-220°C, optimized for film quality and efficiency.
Film Thickness: Tested at a standard thickness of 50 microns, common for most packaging applications.
 
Storage Recommendations
Storage Conditions: Store away from direct sunlight and high temperatures to prevent degradation. Keep in a dry environment to avoid moisture-related issues.
 
Health & Safety
Safety Precautions: Avoid contact with molten polymer to prevent burns. Ensure adequate ventilation in processing areas to manage fumes effectively.
 
Environmental Considerations
Recycling: Supports environmental sustainability efforts. Care should be taken if recycled resins are contaminated with hazardous materials.
 
Summary
Lupolen 2420D distinguishes itself in the flexible packaging market by virtue of its superior physical properties, ease of processability, and strong environmental and safety credentials. It is an ideal choice for manufacturers seeking reliable, high-performance materials for a broad range of film applications.