Product Description:
HDPE (High Density Polyethylene) is a widely used thermoplastic known for its versatile properties. Here is a detailed introduction to this material:
Basic Information:
HDPE is produced by copolymerizing ethylene with a small amount of alpha olefin monomer. It is referred to as low-pressure polyethylene due to the lower pressure conditions under which it is synthesized. The molecular structure of HDPE is predominantly linear with minimal branching, resulting in high crystallinity and density.
Physical Properties:
HDPE appears as non-toxic, odorless, and tasteless white particles with a melting point around 130 ℃ and a relative density ranging from 0.941 to 0.960. It exhibits excellent heat and cold resistance, maintaining optimal performance within the temperature range of -40 ℃ to 100 ℃.
Chemical Properties:
HDPE showcases remarkable chemical stability and remains insoluble in any organic solvents at room temperature. It demonstrates resistance to acid, alkali, and various salt corrosion; however, it can dissolve in hydrocarbon solvents above 60 ℃.
Mechanical Properties:
HDPE is characterized by high rigidity and toughness, displaying good mechanical strength, exceptional stress cracking resistance, and impressive wear resistance. In water environments, HDPE pipes exhibit a service life four times longer than that of steel pipes.
Features:
Physical Properties:
HDPE is a non-toxic, odorless, and tasteless white particle with a melting point of about 130 ℃ and a relative density of 0.941-0.960. It has good heat and cold resistance and can maintain good performance in the temperature range of -40 ℃ to 100 ℃.
Chemical Properties:
HDPE has good chemical stability and is insoluble in any organic solvents at room temperature. It is resistant to acid, alkali, and various salt corrosion, but it is easy to dissolve in hydrocarbon solvents above 60 ℃.
Mechanical Properties:
HDPE has high rigidity and toughness, good mechanical strength, outstanding stress cracking resistance, excellent wear resistance, and a service life four times longer than steel pipes in water environments.
Technical Parameters:
| Flammability |
Self-Extinguishing |
| Electrical Insulation |
Excellent |
| Tensile Strength |
20-25 MPa |
| Applications |
Packaging, Pipes, Wire And Cable Coatings, Etc. |
| Flexural Modulus |
800-1200 MPa |
| Transparency |
Opaque |
| Thermal Conductivity |
0.42 W/m·K |
| Recyclability |
100% |
| Density |
0.94-0.97 G/cm3 |
| Impact Strength |
No Break |
Applications:
In the field of packaging, polyethylene is a versatile material that finds applications in the production of plastic bottles, films, and various other types of packaging materials.
When it comes to pipe materials, polyethylene is commonly used for manufacturing gas pipes, drinking water pipes, and other types of pipelines due to its durability and resistance to corrosion.
Moreover, polyethylene is widely utilized in the production of daily necessities and industrial products using injection molding techniques. It is also employed in the creation of wrapping materials and synthetic paper used for wires and cables.
