What is HDPE?
High density polyethylene ( HDPE ) or polyethylene high density ( PEHD ) is a thermoplastic polymer made from the monomer ethylene. It is sometimes referred to as "alkane" or "polyethylene" when used in the production of HDPE pipe. HDPE has a high strength-to-density ratio and is used in the production of plastic bottles, corrosion-resistant pipes, geomembranes, and plastic lumber. HDPE is commonly recycled.
In 2008, the global HDPE market produced over 30 million tons.
The Advantages Of HDPE
Formability
HDPE remains rigid below its melting point and, once heated to a molten state, can be easily processed into a variety of shapes. This property makes it ideal for the production of food containers, drinking water bottles and plastic lumber.
Corrosion Resistance
HDPE is not susceptible to mold or rot, making it ideal for the manufacture of underground water pipes. In addition, it can be sterilized at high temperatures, making it safe for food contact applications. Its chemical resistance makes it resistant to mineral acids, detergents and many common solvents, while maintaining the advantage of easy maintenance.
Balance of strength and density
With a density range of 930kg/m³ to 970kg/m³, HDPE has a linear and less branched structure, resulting in stronger intermolecular forces. This gives it extremely high tensile strength and the ability to withstand greater loads than most polyethylenes.
Recyclability
With a resin code of 2, HDPE is easy to recycle. Although not biodegradable, its high recycling rate makes it an environmentally friendly option. Recycled HDPE is commonly used to make plastic furniture and automotive parts.
Gnee Bioical, a leading chemical manufacturer and supplier, is dedicated to eco-friendly, sustainable practices in chemical production. By implementing innovative, eco-friendly manufacturing technologies.
