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  2. Low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Low-density_polyethylene

    Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene , produced in 1933 by John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization . [ 1 ]

  3. Polyethylene - Wikipedia

    en.wikipedia.org/wiki/Polyethylene

    The melting point for average commercial low-density polyethylene is typically 105 to 115 °C (221 to 239 °F). These temperatures vary strongly with the type of polyethylene, but the theoretical upper limit of melting of polyethylene is reported to be 144 to 146 °C (291 to 295 °F).

  4. Linear low-density polyethylene - Wikipedia

    en.wikipedia.org/.../Linear_low-density_polyethylene

    Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins. Linear low-density polyethylene differs structurally from conventional low-density polyethylene (LDPE) because of the absence of long chain ...

  5. Plastic film - Wikipedia

    en.wikipedia.org/wiki/Plastic_film

    Polyethylene – The most common plastic film is made of one of the varieties of polyethylene: low-density polyethylene, medium-density polyethylene, high-density polyethylene, or linear low-density polyethylene. Polypropylene – Polypropylene can be made a cast film, biaxially oriented film (BOPP), or as a uniaxially oriented film.

  6. Expanded polyethylene - Wikipedia

    en.wikipedia.org/wiki/Expanded_polyethylene

    EPE foams are low density, semi-rigid, closed cell foam that are generally somewhere in stiffness/compliance between Expanded polystyrene and Polyurethane. Production of EPE foams is similar to that of expanded polystyrene, but starting with PE beads. [1]

  7. Stretch wrap - Wikipedia

    en.wikipedia.org/wiki/Stretch_wrap

    The most common stretch wrap material is linear low-density polyethylene (LLDPE), which is produced by copolymerization of ethylene with alpha-olefins, the most common of which are butene, hexene and octene.

  8. Polyolefin - Wikipedia

    en.wikipedia.org/wiki/Polyolefin

    In the case of polyethylene, chromium-containing Phillips catalysts are used often. Kaminsky catalysts are yet another family of catalysts that are amenable to systematic changes to modify the tacticity of the polymer, especially applicable to polypropylene. Thermoplastic polyolefins low-density polyethylene (LDPE),

  9. Thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic

    Polyethylene (polyethene, polythene, PE) is a family of similar materials categorized according to their density and molecular structure. It is also known as poly and is obtained by the addition polymerisation of ethylene. It may be of low density or high density depending upon the process used in its manufacturing.

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