PP Polypropylene
Polypropylene (PP) | Original Raw Material
Product Description
Polypropylene is a semi-rigid, transparent and economical thermoplastic obtained by polymerization of propylene monomer with Ziegler-Natta catalyst. Isotactic PP has a glass transition temperature of -10 °C and a melting temperature of about 160 °C. It has good chemical resistance but can be affected by chlorine, nitric acid and strong oxidizers; it is recommended to protect it from prolonged direct sunlight as UV rays can degrade the surface. Flammable but burns slowly and is non-toxic. Heat resistance can be further increased with appropriate additives.
Features
| Parameter | Value |
|---|---|
| Specific Gravity | 0.91 g/cm³ |
| Tensile Force | 30 - 40 MPa |
| Elastic Modulus | 1 400 - 1 600 MPa |
| Impact Resistance | 5 - 10 kJ/m² |
| Deformation Temperature | 110 °C |
| Vicat Softening Temperature | 155 °C |
Application Areas
- Garden furniture, power tools, pipe fittings
- Clean/waste water pipes, storage containers, kitchen utensils
- Disposable cups, suitcases, sterile healthcare equipment
- Air filters, test tubes, tape materials
- Automotive: battery housings, bumpers, panels, interior components
Process Conditions
- Pre-Drying Bake at 60 °C for 1 hour
- Processing (Injection/Extrusion): Processed in the range 170 °C - 250 °C
Varieties
- Homopolymer (PPH)
- Block Copolymer (PPC)
- Random Copolymer (PPRC): Especially suitable for hot water installation and hot-plate welding.
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