An Environmental Protection Product
Polypropylene is a bad conductor of electricity and is classified as an insulator. That makes it a great material for manufacturing certain electronic components such as polypropylene capacitors and audio equipment. Electric cables also use polypropylene for insulation.
Polypropylene is highly impermeable material. It will absorb less than 0.01% of water when soaked in it for 24 hours. This makes it an ideal material for products which are to be submerged in liquids. Polypropylene is used in water-proofing of roofs as well. On the flip side, polypropylene can be treated with certain chemicals to make it absorb water. In such cases, it can be used for making things like sanitary napkins and diapers.
Excellent and outstanding
Polypropylene is desirable because of the way it responds to heat. Polypropylene will turn to liquid when it reaches its melting point. The liquid can then be molded into any desired shape. Injection molding uses polypropylene due to the way it responds to heat. It is also worth noting that polypropylene can be heated, liquefied, cooled, and then reheated again without any significant degradation.
One of the major utilities of polypropylene is the fact that it can be made into a living hinge. A living hinge is a thin piece of material that can bend without breaking. Hinges are used in structural applications such as allowing doors and windows to open and close. These are heavyweight applications that use hinges made of steel and metal. But, there are other ways in which living hinges can be used in domestic applications like a lid on a bottle or a small mint box. In such applications, polypropylene can be used as a living hinge because it will not break even after repetitive bending.