Polypropylene (PP) is a synthetic glue formed from the polymerization of propylene.
It is one of an important family of polyolefin glues. Polypropylene is convertible into many plastic products that require stiffness, flexibility, light weight, and heat resistance.
properties of polypropylene
Polypropylene melting point: in the case of the homopolymer 160 – 165 °C, in the case of the copolymer between 135 -159 °C.
Density: Polypropylene is one of the lightest polymers of all plastics, this feature makes it a suitable choice for lightweight applications.
Homopolymer density: 0.904 – 0.908 gal/cm3, random copolymer density 0.904 – 0.908 g/cm3.
Flammability: A substance that is highly flammable. It retains its electrical and mechanical properties at elevated temperatures.
Excellent resistance to environmental stress or cracking. Sensitivity to microbial attacks such as bacteria and putrefaction.
Good resistance to steam sterilization.
It can also be polymerized with ethylene to produce a flexible copolymer of ethylene and propylene.