Polypropylene

Polypropylene is the second-most widely produced commodity plastic (after polyethylene). Polypropylene (PP), is a thermoplastic polymer used in a wide variety of applications.
In PETROFRICK we supply different types of polypropylenes with different MFR. It includes BOPP, Raffia, Random copolymer, Homopolymer.
There are two main types of polypropylene thermoplastics:
1. Homopolymers
2. Copolymers

Homopolymers contain only propylene monomers in semi-crystalline form. Main uses include textiles, packaging, pipes, medical components and electrical applications.
Copolymers are divided into random copolymers and block copolymers, produced by polymerizing propene and ethene together. Copolymers contain higher amounts of ethylene, which result in an increase in desirable properties within the polypropylene. They are softer than homopolymers but have better impact strength.
Polypropylene can function as both a plastic and fiber type of thermoplastic. This allows for a vastly increased range of uses. It can be used as a fiber, such as in the manufacture of promotional tote bags and bag for life shopping carriers. It is soft, malleable and has a relatively low melting point, making it very easy to be used in the injection molding process, where it is supplied in pellets. It flows well too, due to its low melt viscosity.
Due to the fact that polypropylene adapts well to the injection molding process, it can be used to make incredibly thin layers of plastic. It is very suited to applications such as hinges on medication pots, lids on shampoo bottles and other containers that will be bent and manipulated a lot and mustn’t break.