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    Polypropylene (PP) is a thermoplastic "addition polymer" made from the combination of propylene monomers. It is used in a variety of applications to include packaging for consumer products, plastic parts for various industries including the automotive industry, special devices like living hinges, and textiles. POLYPVC provides high quality and cheap price PP materials in any conditions and meet all your requirements with customization.

    • Polypropylene raw material PPH-Y35
      Y35 is a multi-process, fiber-grade and injection-grade raw material produced by Sinopec. The melt flow rate is 35. It is generally used to produce various non-woven storage boxes and other products.
    • Polypropylene raw material PPR-P00
      The pipe PPR-P00 has developed rapidly in a short period of time due to its excellent mechanical properties, molding processing properties, good chemical stability, heat resistance, and creep resistance, and is widely used in various types of buildings. Cold and hot water deliver...
    • Polypropylene raw material PPH-T30S
      Polypropylene (PP) is a rigid and crystalline thermoplastic used widely in everyday objects like packaging trays, household products, battery cases, medical devices, etc. Explore this comprehensive guide and learn everything you need to know about this widely used thermoplastic.
    • Polypropylene raw material PPR-MS16(GM1600E)
      PPR is short for three-type polypropylene, also known as random copolymer polypropylene pipe, using hot melt method, with special welding and cutting tools, has a high plasticity. The price is also economical. External insulation layer, heat preservation performance is better, th...
    • Polypropylene raw material PPH-HP 500N
      PPH-HP500N is a High flow, high rigidity, Injection grade raw material, Its purpose is: Furniture, partitions and containers, etc,Suitable for food contact.
    • Polypropylene raw material PPH-Y35X
      The high-end polypropylene resin PPH-Y35X developed by Luoyang Petrochemical has replaced foreign brands and is the first Chinese product approved by the European Union Nonwovens Association. After more than two years of operation, the technology of the product has been relativel...
    • Polypropylene raw material EP300H
      Polypropylene fabric is a term used to describe any textile product that is derived from the thermoplastic polymer polypropylene. This type of plastic is part of the polyolefin group, and it is non-polar and partially crystalline. Next to polyethylene, polypropylene is the second...
    • Polypropylene PP Raw  Materials Granules
      Polypropylene is a polymer of propylene by addition polymerization. It is widely used in clothing, blankets and other fiber products, medical instruments, automobiles, bicycles, parts, pipelines, chemical containers and other production, also used in food and drug packaging.

    What is Polypropylene (PP), and What is it Used For?

    Polypropylene (PP) is a thermoplastic "addition polymer" made from the combination of propylene monomers. It is used in a variety of applications to include packaging for consumer products, plastic parts for various industries including the automotive industry, special devices like living hinges, and textiles. Polypropylene was first polymerized in 1951 by a pair of Phillips petroleum scientists named Paul Hogan and Robert Banks and later by Italian and German scientists Natta and Rehn. It became prominent extremely fast, as commercial production began barely three years after Italian chemist, Professor Giulio Natta, first polymerized it. Natta perfected and synthesized the first polypropylene resin in Spain in 1954, and the ability of polypropylene to crystallize created a lot of excitement. By 1957, its popularity had exploded and widespread commercial production began across Europe. Today it is one of the most commonly produced plastics in the world.

    What are the Characteristics of Polypropylene?

    Chemical Resistance: 

    Diluted bases and acids don’t react readily with polypropylene, which makes it a good choice for containers of such liquids, such as cleaning agents, first-aid products, and more.  

    Elasticity and Toughness: 

    Polypropylene will act with elasticity over a certain range of deflection (like all materials), but it will also experience plastic deformation early on in the deformation process, so it is generally considered a "tough" material. Toughness is an engineering term which is defined as a material's ability to deform (plastically, not elastically) without breaking..

    Fatigue Resistance: 

    Polypropylene retains its shape after a lot of torsion, bending, and/or flexing. This property is especially valuable for making living hinges.

    Insulation: polypropylene has a very high resistance to electricity and is very useful for electronic components.


    Although Polypropylene can be made transparent, it is normally produced to be naturally opaque in color. Polypropylene can be used for applications where some transfer of light is important or where it is of aesthetic value. If high transmissivity is desired then plastics like Acrylic or Polycarbonate are better choices.

    Polypropylene is classified as a "thermoplastic" (as opposed to "thermoset") material which has to do with the way the plastic responds to heat. Thermoplastic materials become liquid at their melting point (roughly 130 degrees Celsius in the case of polypropylene). A major useful attribute about thermoplastics is that they can be heated to their melting point, cooled, and reheated again without significant degradation. Instead of burning, thermoplastics like polypropylene liquefy, which allows them to be easily injection molded and then subsequently recycled. By contrast, thermoset plastics can only be heated once (typically during the injection molding process). The first heating causes thermoset materials to set (similar to a 2-part epoxy) resulting in a chemical change that cannot be reversed. If you tried to heat a thermoset plastic to a high temperature a second time it would simply burn. This characteristic makes thermoset materials poor candidates for recycling.

    Types of PP material

    There are two main types of polypropylene available: homopolymers and copolymers. The copolymers are further divided into block copolymers and random copolymers. Each category fits certain applications better than the others. Polypropylene is often called the "steel" of the plastic industry because of the various ways in which it can be modified or customized to best serve a particular purpose. This is usually achieved by introducing special additives to it or by manufacturing it in a very particular way. This adaptability is a vital property.

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