Polypropylene – PP

    A synthetic resin built up by the polymerization of propylene. One of the important families of polyolefin resins, polypropylene is molded or extruded into many plastic products in which toughness, flexibility, light weight, and heat resistance are required. It is also spun into fibers for employment in industrial and household textiles.

    Recycling Code

    HOMOPOLYMER

    The most widely utilized general-purpose grade. It contains only propylene monomer in a semi-crystalline solid form. Main applications include packaging, textiles, healthcare, pipes, automotive, and electrical applications.

    Benefits

    Homopolymers tend to have higher crystallinity levels. Hence they have better short term mechanical properties — stiffness, tensile strength, impact resistance and initial creep resistance.

    Applications

    ExtrusionFilm, fiber(woven),Continuous filament, spun-bond(non-woven), Thermoforming, Rope
    FilmBOPP, Cast film
    Injection MoldingFood containers,toys, consumer goods, industrial parts, medical parts

    BLOCK COPOLYMER

    Block copolymer polypropylene is a type of polymer that contains a higher ethylene content compound which is a bit soft but has a better impact strength. It has co-monomer units arranged in a regular pattern (or blocks). The regular pattern makes the thermoplastic tougher and less brittle. These polymers are suitable for applications requiring high strength, such as industrial usages.

    Benefits

    It tends to have better stress crack resistance, impact resistance and lower temperature toughness.

    Applications

    Compression FoldingCaps & closures
    ExtrusionSheet & thermoforming , Fiber, adhesive tape
    FilmBlown film & cast films(bags, pouches,food packaging)
    Injection MoldingBattery cases, automotive parts, pallets,luggage, TWIM

    RANDOM COPOLYMER

    Random copolymer is produced by polymerizing together ethene and propene. It features ethene units, incorporated randomly in the polypropylene chains. These polymers are flexible and optically clear, making them suitable for applications requiring transparency and for products requiring an excellent appearance.

    Benefits

    The resins provide a broad range of characteristics, and are used in a wide range of applications like high-clarity and high-transparency packaging produced by way of injection molding, blow molding and thermoforming.

    Applications

    Blow MoldingCosmetics & high transparent bottles
    ExtrusionPipe(PP-R )
    FilmCast film, BOPP and blown film
    Injection MoldingHigh clarity food packaging container(TWIM)