High Molecular Polyethylene PE Board for Fish Ponds with Wear Resistance

Below is an introduction to polyethylene:

Definition and Structure

Polyethylene (PE) is a high molecular compound polymerized from ethylene monomers. Its molecular chain mainly consists of carbon and hydrogen atoms, connected by repeating —CH?—CH?— units. Depending on the polymerization method and conditions, it can have linear or branched structures.

Classification

? Low-Density Polyethylene (LDPE): Generally polymerized under high temperature and high pressure, it has many short branches with a density of 0.910-0.925 g/cm3. It offers good transparency, flexibility, low-temperature resistance, and breathability, commonly used in films, pipes, and other fields.

? High-Density Polyethylene (HDPE): Produced through low-pressure polymerization processes, its molecular chains are tightly arranged with few branches and a density of 0.941-0.965 g/cm3. It exhibits high rigidity, hardness, mechanical strength, and chemical corrosion resistance, widely used in pipes, injection-molded products, etc.

? Linear Low-Density Polyethylene (LLDPE): This is a copolymer of ethylene and a small amount of α-olefin under the action of a catalyst. It combines some properties of both LDPE and HDPE, and its linear structure provides better tensile strength, tear resistance, etc., primarily used in film production.