Polypropylene (PP) is a type of proolefin that is a little harder than polyethylene. Polypropylene is a commodity plastic with low density and resistant to high heat. Among the uses of polypropylene, we can mention the use in packaging, automobiles, consumer goods, medicine, and cast films, and its chemical formula is (C3H6)n.
Polypropylene (PP) is divided into two categories: polypropylene homopolymer and copolymer. In the following, they have been examined:
Polypropylene homopolymer
They are thermoplastic resins that are produced through the polymerization of propylene with Ziegler-Natta catalysts. Homopolymers can be used in various processing technologies such as injection molding, blow molding, film, fiber, sheet extrusion and thermal forming.
In addition to the above applications, PPH homopolymer polypropylene has features such as higher strength-to-weight ratio, longer durability, and greater material stiffness compared to polypropylene copolymer, and for applications that require good resistance to impact, corrosion, and chemicals. It needs good weldability and processability.
"Z 30 s"
Polypropylene copolymer
Copolymers have a second monomer of ethylene, which increases the impact strength compared to polypropylene homopolymer. The key properties of polypropylene copolymer are high impact strength, good chemical resistance, better resistance to cracking at low temperatures and increased flexibility.
Polypropylene copolymer can be used in cases such as making car parts, containers, packaging and family products. It is also widely used in injection molding for various parts and medical devices.
"Moplen EPD60R"
Polypropylene (PP) is a lightweight, hard, rigid and crystalline thermoplastic that exists in various forms. Among the advantages of polypropylene, we can mention its melting point, density, chemical resistance and flammability.
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