The structure of this polyethylene has a high strength-to-density ratio due to the nature of the polymer chain. Due to the low number of branches and their small size, the degree of crystallinity is high and as a result, its density is between 0.97-0.94. HDPE polyethylene has many different applications depending on the molecular weight of the polymer chain.
Among the famous grades of this product, we can mention injected high density polyethylene, which has many applications. Usually, lighter molecular weight grades are used for the injection process and to produce injection products such as kitchen utensils and toys. Heavier molecular weight grades are used to produce polymer films and inflatable containers for product packaging, and extra heavy grades are used to produce polyethylene pipes for transporting water and liquids in the city and agriculture.