Linear Low-Density Polyethylene (LLDPE) is a flexible and tough thermoplastic polymer known for its excellent strength, puncture resistance, and stretch properties. LLDPE is widely used in packaging films, liners, and various applications where durability and flexibility are critical.
Specifications:
| Property | Details |
|---|---|
| Chemical Formula | (C₂H₄)ₙ |
| Appearance | Transparent to translucent, flexible, and available in various colors. |
| Molecular Weight | Varies based on the polymerization process, typically within the range of 50,000 to 200,000 g/mol. |
| Density | 0.92 – 0.94 g/cm³ (depending on the grade and processing conditions). |
| Melting Point | 120 – 125°C (248 – 257°F). |
| Tensile Strength | 15 – 25 MPa (mega pascals). |
| Flexural Strength | 20 – 30 MPa. |
| Hardness | 50 – 60 Shore D. |
| Chemical Resistance | Resistant to acids, bases, and various solvents, with improved chemical resistance compared to LDPE. |
| Transparency | High optical clarity, making it suitable for packaging applications. |
| Flexibility | Excellent flexibility and elongation at break, ideal for stretch films and flexible packaging. |
| Puncture Resistance | High puncture resistance, making it suitable for heavy-duty applications. |
| Recyclability | Fully recyclable and commonly used in various packaging and film applications. |
LLDPE’s combination of toughness, flexibility, and chemical resistance makes it a preferred choice for applications requiring strength and durability.
