What Are Typical Properties of Polypropylene?


Quick Answer

Polypropylene is very resistant to organic solvents, degreasing agents and electrolytic attack as well as possessing a low absorption rate. Polypropylene is a tough, heat-resistant semi-rigid material ideally suited for transporting hot gases and liquids. Polypropylene resists both acidic and alkaline substances but is vulnerable to chlorinated solvents.

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Polypropylene is a thermoplastic polymer widely used in packaging, labeling and the manufacturing of textiles and plastic products. Polypropylene is lightweight and impact-resistant and possesses excellent dielectric properties and compression strength. A non-staining material, polypropylene is easy to manufacture and resistant to stress cracking. Polypropylene is economical, and may be translucent when uncolored. Polypropylene may suffer degradation from exposure to heat and UV radiation. Polypropylene manufacturing techniques that utilize a UV-absorbing additive, such as carbon black, produce polypropylene materials suitable for use in environments where UV exposure occurs.

Giulio Natta and Karl Rehn first created polypropylene in March 1954. Large-scale commercial production of the material began in 1954 with commercial polypropylene revenues expected to exceed $145 billion by 2019. Manufacturers widely use polypropylene in the production of piping systems that require both strength and rigidity. Many plastic items found in medical and scientific laboratories are made using polypropylene due to its ability to withstand heat and environmental stresses.

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