
Polypropylene facts for kids
Polypropylene | |
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IUPAC name | poly(propene) |
Other names | Polypropylene; Polypropene; Polipropene 25 [USAN];Propene polymers; Propylene polymers; 1-Propene |
Identifiers | |
CAS number | |
Properties | |
Molecular formula | (C3H6)n |
Density | 0.855 g/cm3, amorphous 0.946 g/cm3, crystalline |
Melting point |
130–171 °C (266–340 °F) |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
Polypropylene (PP), or polypropene, is a type of plastic. It is a thermoplastic polymer which can be made into a fibre for yarn and fabric, film for packaging, or many other shapes.
As a plastic it is opaque and often brightly colored. It is tough, and resists many solvents, acids and bases.
It can be formed into a thin thread that is woven into a special strap that can be found on backpacks, bags, and other things.
In 2008, the global market for polypropylene had a volume of 45.1 million metric tons, which led to a turnover of about $65 billion (~ €47.4 billion).
Images for kids
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Micrograph of polypropylene

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Polypropylene Facts for Kids. Kiddle Encyclopedia.