Tiheäpolyeteeni

Tiheäpolyeteeni, often abbreviated as HDPE, is a versatile thermoplastic polymer derived from petroleum. Its chemical structure features long chains of ethylene monomers linked together with minimal branching, resulting in a dense and rigid material. This high density is a key characteristic that distinguishes it from its lower-density counterpart, low-density polyethylene (LDPE).

HDPE possesses a favorable combination of properties, including excellent chemical resistance, good tensile strength, and impact resistance. It is also lightweight, making it easy to handle and transport. Furthermore, HDPE is known for its low moisture absorption and good electrical insulation properties. Its production typically involves polymerization of ethylene under specific temperature and pressure conditions, often using catalysts.

The widespread applications of HDPE stem directly from its robust characteristics. It is commonly used in the manufacturing of plastic bottles for milk, detergents, and shampoos, as well as in pipes for water and gas distribution due to its durability and resistance to corrosion. Other significant uses include plastic bags, cutting boards, playground equipment, and lumber alternatives. Its recyclability is another important attribute, contributing to its sustainability profile. HDPE can be processed using various methods such as injection molding, blow molding, and extrusion.