Polypropylene
Polypropylene is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.
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| Names | |
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| IUPAC name
Poly(1-methylethylene)
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| Other names
Polypropylene; Polypropene;
Polipropene 25 [USAN]; Propene polymers; Propylene polymers; 1-Propene; [-Ch2-Ch(Ch3)-]n | |
| Identifiers | |
| ChemSpider |
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| ECHA InfoCard | 100.117.813 |
| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| (C3H6)n | |
| Density | 0.855 g/cm3, amorphous 0.946 g/cm3, crystalline |
| Melting point | 130 to 171 °C (266 to 340 °F; 403 to 444 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat-resistant. It is a white, mechanically rugged material and has a high chemical resistance.
Polypropylene is the second-most widely produced commodity plastic (after polyethylene).
