| UV Resistance: | Good | Applications: | Packaging, Pipes, Toys, Medical Devices |
|---|---|---|---|
| Density: | 0.91-0.96 G/cm3 | Transparency: | Opaque |
| Chemical Resistance: | Excellent | Water Absorption: | <0.01% |
| Melting Point: | 115-135°C | Tensile Strength: | 17-35 MPa |
LLDPE, short for linear low-density polyethylene, is a type of polyethylene created by incorporating short branched chains into HDPE. This material blends the flexibility of low-density polyethylene with the durability of high-density polyethylene. Its key features include high toughness, ease of processing, and resistance to low temperatures.
Physical properties:
Extremely strong toughness, far superior to LDPE in terms of impact resistance and puncture resistance (such as plastic bags for heavy objects that are not easily broken) ; Outstanding low temperature resistance, able to maintain good toughness even at -40 ℃, and not easily brittle ; Medium transparency, slightly lower surface glossiness than LDPE .
Chemical properties:
Acid and alkali resistance, organic solvent resistance, good barrier to water and water vapor ; Excellent electrical insulation and can be used as insulation layer for wires and cables .
Processing performance:
Good fluidity, easy to form through blow molding, extrusion and other processes, wide processing temperature range, high production stability, suitable for large-scale manufacturing of films, pipes and other products .
| Polyethylene Resin | Opaque |
| Melting Point | 115-135°C |
| Chemical Resistance | Excellent |
| Recyclability | Recyclable |
| Elongation at Break | 300-1000% |
| Flammability | Non-flammable |
| Thermal Conductivity | 0.33-0.38 W/m·K |
| UV Resistance | Good |
| Environmental Impact | Low |
| Flexural Modulus | 0.8-1.8 GPa |
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In the packaging industry, polyethylene is widely utilized as it holds the largest share. It is commonly used in the production of various types of films including stretch wrap film for packaging, food packaging film, agricultural film like puncture-resistant greenhouse film, and heavy packaging film for fertilizers and feed applications.
In addition to its applications in the packaging sector, polyethylene also plays a crucial role in the manufacturing of pipes and profiles. It serves as the inner layer of water supply pipes, gas pipes due to its flexibility and sealing properties, as well as in the production of corrugated pipes, cable trays, and other related products.
Moreover, polyethylene finds its way into a wide range of other industries beyond packaging and pipes. It is commonly used in the production of wire and cable insulation layers, plastic toys, container covers, and disposable items such as gloves and aprons.