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    Linear-Low Density Polyethylene (LLDPE)

    Linear-Low Density Polyethylene (LLDPE) in Tradeasia

    IUPAC Name


    Cas Number


    HS Code




    Basic Info


    Semi-translucent, opaque, and waxy

    Common Names



    25 Kg Bag

    Brief Overview

    Linear low-density polyethylene is a substantially linear polymer with significant numbers of short branches, commonly made by copolymerizing ethylene with another monomer, such as hexene, octene, or butene, to give it the desired properties. It looks similar to HDPE but has lower crystallinity due to a more substantial number of short-chain branches. Therefore, it also has a lower density. LLDPE has many advantages over other types of plastic. It is lightweight, flexible, and durable, which makes it ideal for packaging applications. It is also resistant to chemicals, UV radiation, and weathering, which makes it suitable for outdoor use. Additionally, LLDPE also has good heat-sealing properties, which makes it an ideal material for packaging films. In the present-day scenario, Linear low-density polyethylene (LLDPE) has successfully replaced Low-Density Polyethylene. 

    Manufacturing Process

    The manufacturing process of linear low-density polyethylene (LLDPE) involves the copolymerization of ethylene with a comonomer such as hexene, octene, or butene. The process typically involves the following steps:

    1. Ethylene and the comonomer are fed into a reactor under high pressure and temperature. The pressure is typically between 1000 to 3000 bar, and the temperature is between 120 to 300 °C.

    2. A catalyst, which is typically a Ziegler-Natta catalyst, is added to the reactor to initiate the polymerization reaction. The catalyst helps to control the molecular weight and distribution of the polymer.

    3. The ethylene and comonomer undergo copolymerization to form a molten polymer.

    4. The polymer is then fed into a series of reactors where it undergoes further polymerization and chain growth. This process helps to improve the polymer's mechanical properties and control its molecular weight distribution.

    5. After the polymerization process is complete, the polymer is cooled and solidified. It is then either pelletized or converted into a film or other forms.

    Grade Available

    1. Film
    2. Injection
    3. Rotational Molding


    Linear low-density polyethylene (LLDPE) is a versatile polymer that finds a wide range of applications across various industries due to its unique combination of properties, such as flexibility, durability, chemical resistance, and processability. Some of the major applications of LLDPE are:

    1. Packaging films: LLDPE is widely used to manufacture packaging films due to its excellent toughness, puncture resistance, and sealing properties. It is used to make products such as stretch films, shrink films, and food packaging.

    2. Agriculture films: LLDPE is used to make greenhouse films, mulch films, and silage films used in agriculture. It helps to protect crops from weather conditions, pests, and diseases.

    3. Pipe and tubing: LLDPE is used to manufacture pipes and tubing for water distribution, gas transportation, and other industrial applications. Its excellent flexibility and resistance to chemicals and UV radiation make it an ideal material for such applications.

    4. Rotational molding: LLDPE is used in rotational molding to manufacture large hollow products, such as tanks, containers, and playground equipment.

    5. Wire and cable insulation: LLDPE is used to manufacture insulation for wires and cables due to its excellent electrical properties and resistance to chemicals and moisture.

    6. Injection molding: LLDPE is used in injection molding to manufacture a variety of products, such as automotive parts, toys, and household items.

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