Polypropylene In CNC Machining
Polypropylene (PP) is a versatile thermoplastic polymer widely used in various industries due to its excellent properties and cost-effectiveness.
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Description & Characteristics
| Price | $ $ $ $ $ |
| Lead Time | < 10 days |
| Wall Thickness | 0.75 mm |
| Tolerances | ±0.125mm (±0.005″) |
| Max Part Size | 200 x 80 x 100 cm |
| Applications | widely applied in packaging, automotive, medical, textile, and consumer goods industries. |
| Strengths | Exceptional mechanical properties, high precision, and repeatability. |
| Weaknesses | More limitations in geometry compared to 3D printing |
Mechanical & Physical Properties
| Polypropylene | Ultimate tensile strength | Yield strength | Young's modulus (modulus of elasticity) |
Elongation at break
|
Hardness
|
UV resistance
|
|---|---|---|---|---|---|---|
| PP | 23-33 MPa | 30-32 MPa |
0.9-1.6 GPa |
8-12% |
65-102 HRR |
Poor |
| PP Homopolymer |
/ |
19-30 MPa |
0.7 - 1.2 GPa
|
Min.50% | / | / |
|
PP+GF(30%) |
68-85 MPa | / | 6.5-7 GPa |
2.1-3.4 %
|
110HRC | Fair |
Thermal & Electrical Properties
| Polypropylene | Maximum service temperature | Thermal expansion coefficient | Thermal conductivity |
ESD Safety
|
|---|---|---|---|---|
| PP | 80-130 °C |
6-17 10^-6/ºC
|
0.22 - 0.27 W/(m⋅°C)
|
No |
| PP Homopolymer | 80 °C |
/
|
/
|
/ |
| PP+GF(30%) |
100 °C
|
25-70 10^-6/ºC
|
0.27 - 0.3 W/(m⋅°C)
|
No |