
Low-density polyethylene (LDPE) is a versatile and widely used plastic polymer that has become a staple in various industries. LDPE is a thermoplastic made from ethylene monomer. It has a low density, hence the name light polyethylene, and is commonly used for packaging materials, plastic bags, and even cable sheathing. This material is known for its excellent chemical resistance, making it suitable for storing and transporting a wide variety of materials.
LDPE, which stands for low-density polyethylene, is a thermoplastic material synthesized through the polymerization of ethylene monomers. Its unique chain structure and low density provide a host of useful properties and contribute to its position as one of the most widely used plastics worldwide. To create LDPE, ethylene monomers are subjected to high pressure and temperature in a process called polymerization.
Once produced, LDPE is highly processable and can be melted and reshaped many times without losing its desirable properties. In addition, it is resistant to moisture, chemicals and UV rays, making it a strong and durable material. As a result, LDPE is commonly used to make films, sheets, and containers because of its flexibility and transparency.
Characteristics
| Density | 0.923 g/cm3 |
| Molding shrinkage | 1.9% |
| Tensile strength | 10.5 MPa |
| Shore hardness | 49 Shore D |
| Tensile impact strength | 286 kJ/m2 |
Applications
In general, light and heavy polyethylene are widely used in the packaging industry.
Low density polyethylene (LDPE) is mostly used in the production of containers, pipes, plastic bags for computer parts and various laboratory equipment. The most common use of low-density polyethylene is plastic bags.
Other users of light polyethylene include the following
Use in household appliances
Production of flexible toys
Production of agricultural films
Production of wiring and cables
Used in cable sheathing
Due to its good flexibility and low cost, this material is used for packaging medicine bottles, lids, liners, garbage bags, etc. Light polyethylene is also used to make water pipes and hoses due to its plastic properties and less water absorption. do
Environmental impact and sustainability of LDPE
Recycling LDPE helps reduce waste and minimize its impact on the environment. The recycling process involves collecting LDPE waste, sorting and processing it into flakes or pellets.
These recycled LDPE materials can be used to produce new products such as plastic bags, containers or even new LDPE films. Recycling LDPE not only conserves resources, but also reduces the carbon footprint associated with the production of new materials.
However, it is important to note that not all LDPE products are recyclable. Some products may contain additives or multiple layers that can complicate the recycling process. Checking with local recycling centers is essential to ensure proper disposal and recycling of LDPE products.
Packing
LDPE is packed and supplied in 25 kg bags.
