What is Polypropylene?
{{Chembox | Verifiedfields = | Watchedfields = | verifiedrevid = 47717187 | Name = Polypropylene (PP) | ImageFile1 = Polypropylen.svg | ImageSize1 = 100px | ImageName1 = | ImageFile2 = Polypropylene isotactic mini trp.png | ImageName2 = Polypropylene isotactic | ImageFile3 = Polypropylene syndiotactic mini trp.png | ImageName3 = Polypropylene syndiotactic | IUPACName = Poly(1-methylethylene) P | OtherNames = Polypropylene; Polypropene;<br />Polipropene 25 [USAN]; Propene polymers;<br />Propylene polymers; 1-Propene; [-Ch2-Ch(Ch3)-]n | Section1 = {{Chembox Identifiers | CASNo_Ref = {{cascite|correct|CAS}} | CASNo = 9003-07-0 | ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} | ChemSpiderID = None }} | Section2 = {{Chembox Properties | Formula = (C<sub>3</sub>H<sub>6</sub>)<sub>n</sub> | Density = 0.855 g/cm<sup>3</sup>, amorphous<br /> 0.946 g/cm<sup>3</sup>, crystalline | MeltingPtC = 130 to 171 | MeltingPt_notes = }} }} '''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 can be made [[translucent]] but usually is [[opaque]] and often brightly colored. It is tough, and resists many [[solvent]]s, [[acid]]s and [[Base (chemistry)|bases]]. It can be formed into a thin thread and woven into a strong strap, often used on backpacks, bags, and other things. In 2008, the global market for polypropylene had a volume of 45.1 million [[metric ton]]s, which led to a turnover of about $65 billion (€47.4 billion).<ref>{{cite web|title = Market Study: Polypropylene|publisher = Ceresana Research|url = http://www.ceresana.com/en/market-studies/plastics/polypropylene/}}</ref> ==Sources== {{Reflist}} {{chem-stub}} [[Category:Thermoplastics]]