Linear & Radical Low-Density Polyethylene:
(LLDPE) and Low-Density Polyethylene (LDPE) are two types of polyethylene with different molecular structures,
resulting in distinct properties and applications.
LLDPE:
Properties:
- Linear molecular structure with short branches.
- Higher tensile strength and puncture resistance compared to LDPE.
- Flexible and transparent.
- Good impact resistance.
Applications:
- Packaging films (e.g., stretch wrap, food packaging).
- Agricultural films (mulching, greenhouse covers).
- Rotational molding for large containers and tanks.
- Pipes and cables insulation.
- Geomembranes for environmental applications.
LDPE:
Properties:
- Branched molecular structure, making it less dense.
- Softer and more flexible compared to LLDPE.
- Good chemical resistance.
- Transparent and easily processable.
Applications:
- Plastic bags and films (grocery bags, shrink wrap).
- Squeeze bottles and containers for liquids.
- Coatings for paper and cardboard.
- Wire and cable insulation.
- Toys and various molded consumer products.
In summary,
LLDPE is often chosen for applications requiring higher strength and puncture resistance,
while LDPE is preferred for its flexibility and transparency,
making it suitable for various packaging and consumer product applications.
