Technically speaking, polypropylene is considered a thermoplastic, and it’s also considered an addition polymer, since it’s made by combining different propylene monomers. Currently, the world generates about 45 million metric tons of polypropylene every year, and demand for the product is estimated to rise consistently over the next several years.
It is most popularly used in the packaging industry, as the packaging industry uses approximately 30% of all the PP in the world. Household appliances are responsible for consuming 10%, and automotive industries consume another 10%.
There are several features of polypropylene that make it ideal for a wide range of applications. For example, this material has a relatively low density when compared to other plastics, enabling it to minimize the weight of a specific part or appliance. Polypropylene is also relatively easy to manufacture, making it inexpensive for what it does.
One of the most important characteristics of polypropylene is its resistance to organic solvents at room temperature, and it does not break even when repeatedly bent or distorted. Many industries also appreciate the copolymerization potential of this material, allowing it to be combined with other plastics and polymers to create hybrid materials.
You might already be familiar with polypropylene in its use in dishwasher safe plates, toys, or household appliances.