Polyethylene

Polyethylene is a widely used thermoplastic polymer made primarily from ethylene, a chemical commonly derived from oil or natural gas, although bio-based alternatives also exist. It is used in packaging, plastic bags, bottles, pipes, insulation, household goods and some textile applications because it is lightweight, durable, moisture-resistant and relatively easy to process. Different forms, including low-density polyethylene and high-density polyethylene, offer varying levels of flexibility and strength. Polyethylene can be mechanically recycled when properly collected and sorted, but contamination, additives and mixed-material products can reduce recycling efficiency. Like other conventional plastics, it is slow to degrade in the environment and can contribute to persistent plastic pollution.