LDPE

PE or Polyethylene is a chemical-resistant plastic that is extremely durable. Polyethylene plastic can be low density or high density.

Features:

Polyethylene can be molded, extruded and poured into molds of various shapes. It is generally used in the construction industry because it is cheap, can be easily shaped and molded. Therefore, it is suitable for use in places such as rain gutters.

Polyethylene is a tough, robust, durable and dimensionally stable material that absorbs very little water. It is a good gas blocker and has good resistance to chemicals such as acids, grease and oil. It can be very transparent and colorless, but the thicker parts are usually opaque and whitish. Polyethylene has very good self-extinguishing properties and resistance to ultraviolet light.

Areas of Use:

Polyethylene is a polymerized ethylene resin used mainly in cables, utensils and tubing or in packaging films and plates. It is also a component used in plastic bottles.

Processes:

Polyethylene is produced by changing the structure of natural gas (a mixture of methane, ethane and propane) or by catalytic separation of crude oil into gasoline. The high-purity polyethylene is taken directly from the refinery and transferred through pipes to a separate polymerization plant. Here, under the right conditions of temperature, pressure and catalyst, the ethylene monomer’s hedge bond opens and the monomers combine to form long chains.

Today, polyethylene production processes are generally categorized into “high-density” and “low-density” operations. The “high-density” operation category usually produces ordinary low-density polyethylene (LDPE), while the “low-density” operation category produces high-density (HDPE) and linear low-density (LLDPE) polyethylene. The difference between these polyethylene processes and types is given below.