Product Description
Polyethylene (PE) is one of the most extensively manufactured polymer materials worldwide and accounts for a significant share of global plastic production. Its different grades provide distinct performance characteristics for a broad range of applications.
Low-density polyethylene (LDPE) is mainly used for flexible materials, including films, sheets, and coatings. High-density polyethylene (HDPE) is more commonly processed into rigid products such as bottles and containers, while it can also be converted into fibers for applications such as fishing nets, ropes, and related products.
Ultra-high molecular weight polyethylene (UHMWPE) is distinguished by its excellent resistance to environmental stress cracking, low moisture absorption, high fatigue resistance, and outstanding impact strength. These properties make it particularly suitable for textile machinery components that require superior wear and impact resistance, including rubber joints, gears, washers, and other mechanical parts.
Chemical Properties
| English Name | Polyethylene |
| English Synonyms | pad522;pe512;pe617;pen100;pep211;pes100;pes200;petrothene |
| CAS Number | 9002-88-4 |
| Molecular Formula | (C2H4) n |
| Molecular Weight | 28.05316 |
| EINECS Number | 618-339-3 |
| Melting point | 92 °C |
| Boiling point | 48-110 °C (Press: 9 Torr) |
| Density | 0.962 g/mL at 25 °C |
| Refractive index | 1.51 |
| Flash point | 270℃ |
| Storage conditions | -20℃ |
| Form | Powder |
| Color | White |
| Specific gravity | 0.95 |
| Biological origin | rabbit |
| Water solubility | Soluble in acetone and benzene. Insoluble in water. |
| Merck value | 147,567 |
| Dielectric constant | 2.2 (Ambient) |
| Stability | Stable, but slowly decomposes under UV light or sunlight. Incompatible with halogens, strong oxidizers, benzene, petroleum ether, aromatic hydrocarbons and chlorinated hydrocarbons, and lubricating oils. |
| Surface tension | 35.7 mN/m at 20°C |
Product Application
Polyethylene (PE) is a thermoplastic resin produced through the addition polymerization of ethylene, with a molecular structure consisting exclusively of carbon and hydrogen atoms. It is non-toxic and demonstrates excellent resistance to low temperatures, with a minimum operating temperature of approximately -100°C. In addition, polyethylene offers good chemical stability and resistance to various chemicals. Thanks to its versatile processing properties, it can be manufactured into films, wire and cable sheaths, pipes, hollow products, injection-molded components, fibers, and other products. As a result, polyethylene is widely used in agriculture, packaging, automotive manufacturing, and many other industrial applications.
