PP
List of Plastic Material
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Price
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Strength
High chemical resistance, lightweight properties, low moisture absorption, excellent fatigue resistance, good electrical insulation.
Weakness
Susceptibility to UV degradation, poor resistance to high temperatures, tendency to warp under stress, and limited impact strength.
Common Application
PP is commonly used in packaging, automotive components, consumer products, textiles, and medical devices.
Properties at a Glance
*Pease note: The following material properties are for reference only. Actual values may vary depending on the selected material brand.
| Property | Metric | English |
|---|---|---|
| Density | 0.9 g/cm³ | 0.033 lb/in³ |
| Shore Hardness D | 45-55 | 45-55 |
| Min Temp. Air | -40-20°C | -40 - 68 °F |
| Max Temp. Air | 80-130 °C | 176 - 266 °F |
| UL94 Fire Rating | HB | HB |
| Elongation at Break | 8-12% | 8-12% |
Chemical Properties
- Resistant to many acids and alkalis.
- Susceptible to degradation by strong oxidizing agents and aromatic hydrocarbons.
- Generally resistant to organic solvents and oils.
Knowledge Hub
A Comprehensive Guide For PP Injection Molding
Polypropylene PP Injection molding is a process in which a polypropylene material is heated to its melting point and then injected into the mold cavity ...
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Is PP recyclable?
Yes, PP material is recyclable. It can be melted down and reprocessed into new products, reducing waste and conserving resources.
Is PP safe?
Yes, PP (polypropylene) is generally considered safe. It is non-toxic, resistant to chemicals, and does not leach harmful substances into food or beverages, making it suitable for use in food packaging and medical devices. However, as with any material, proper handling and disposal practices should be followed to ensure safety.
What are the types of PP?
Polypropylene (PP) is commonly available in several types, including:
- Homopolymer PP: Consists of only propylene monomer units and offers good stiffness, strength, and chemical resistance.
- Copolymer PP: Contains a blend of propylene and ethylene monomer units, providing improved impact resistance and clarity compared to homopolymer PP.
- Random Copolymer PP: Incorporates ethylene randomly along the polymer chain, enhancing flexibility and impact resistance while maintaining high chemical resistance.
