Characteristics of PE pipes

High density polyethylene, the English name is "High Density Polyethylene", referred to as "HDPE". HDPE is a thermoplastic polyolefin produced by the copolymerization of ethylene. Although HDPE was introduced in 1956, the plastic has not yet reached maturity. This versatile material is constantly being developed for new uses and markets.

Main features

The unique properties of the various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce tailor-made polymers with special properties. These variables combine to produce HDPE grades for different applications; achieving the best balance of properties.

Product performance

High-density polyethylene is non-toxic, tasteless and odorless white particles with a melting point of about 130°C and a relative density of 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and environmental stress crack resistance are also good.

Packaging, storage and transportation

When storing, it should be kept away from fire and insulated. The warehouse should be kept dry and tidy. It is strictly forbidden to mix any impurities, and it is strictly forbidden to be exposed to the sun and rain. Transportation should be stored in a clean, dry covered carriage or cabin, and there should be no sharp objects such as iron nails. It is strictly forbidden to mix with flammable aromatic hydrocarbons, halogenated hydrocarbons and other organic solvents.

recycle and re-use

HDPE is the fastest growing segment of the plastic recycling market. This is mainly due to its ease of reprocessing, minimal degradation properties and its extensive use in packaging applications. The main recycling is the reprocessing of 25% of recycled materials, such as post-consumer recycled content (PCR), with virgin HDPE to make non-food contact bottles.

PE pipes for water supply are the replacement products of traditional steel pipes and polyvinyl chloride (PVC) drinking water pipes.