High Density Polyethylene (HDPE) or Polyethylene High Density (PEHD) is a type of thermoplastic polymer with wide range of applications. In terms of volume, High-density polyethylene (HDPE) ranks as the third most abundant commodity plastic material globally, following polyvinyl chloride and polypropylene. Its exceptional tensile strength, high strength-to-density ratio, impact resistance, and elevated melting point set HDPE apart as a preferred material. HDPE is extensively recycled and is designated with the recycling symbol no. “2”, indicating its recyclability.
Characteristics
The molecular structure of HDPE consists of repeating ethylene monomer units, forming a polyethylene chain. HDPE is often known as a “semi-linear” chain. Compared to low-density polyethylene, high-density polyethylene resin has a higher proportion of crystalline regions, contributing to its distinct characteristics.
High-density polyethylene (HDPE) exhibits minimal branching, resulting in enhanced intermolecular forces and tensile strength compared to lower-density polyethylene. It is characterized by increased hardness, opacity, and a higher tolerance for elevated temperatures.
Available Grades
Cast Film | F0863 |
PCGF0863 | |
FI0851P | |
Pipe | P6006 |
F4520 | |
B5823 | |
P5510 | |
Blow Molding | F00752AM |
FJ00952 | |
FI1157 | |
Injection | M200050 |
M300054 | |
CC254 | |
M80063S |
Applications
HDPE demonstrates resistance to a wide range of solvents and finds diverse applications in various industries, including but not limited to: telecommunication ducts, containers, laundry detergent bottles, milk jugs, vehicle fuel tanks, plastic lumber, folding tables, folding chairs, storage sheds, bases for portable basketball systems, plastic bags, containment of specific chemicals, chemical-resistant piping systems, heat-resistant fireworks display mortars, geothermal heat transfer piping systems, natural gas distribution pipe systems, domestic water supply pipes, coaxial cable inner insulators, root barriers, corrosion protection for steel pipelines, refillable bottles, ballistic plates, and more. In sanitary landfills, HDPE is utilized as cell liners to create a chemical-resistant barrier, preventing soil and groundwater pollution from solid waste liquids. HDPE is extensively used in wood-plastic composites, composite wood, and recycled polymers play a significant role in this application. Additionally, HDPE is prevalent in the polytechnics industry. HDPE mortars are favored over steel or PVC tubes due to their superior durability and safety features.
Environmental impact and sustainability of HDPE
HDPE is recognized as a more environmentally conscious plastic option due to its ability to be recycled and its long-lasting nature. Recycled HDPE finds applications in various sectors such as plastic furniture, automotive components, and construction materials like plastic lumber. Despite its non-biodegradable nature, the recyclability of HDPE enhances its sustainability profile. Improper disposal of HDPE items can contribute to plastic pollution and waste accumulation. To address these environmental concerns, it is essential to focus on increasing the recycling rates of HDPE, exploring alternative sustainable sources, and advocating for responsible waste management practices.
Packing
Polyethylene (HDPE) available for purchase in 25 kg bags.