PS In CNC Machining
Polystyrene (PS) is a versatile, inexpensive plastic that can be easily molded. It is commonly used in packaging, consumer goods, and in some industrial applications.
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Description & Characteristics
| Price | $ $ $ $ $ |
| Lead Time | < 10 days |
| Wall Thickness | 2-6 mm |
| Tolerances | ±0.2mm |
| Max Part Size | 1000*1000 mm |
| Applications | Widely used in disposable items like cups, containers, and packaging materials. |
| Strengths | Low cost, easy to fabricate, and can be clear or opaque. |
| Weaknesses | Brittle and can break easily under stress; poor UV and chemical resistance. |
Mechanical & Physical Properties
| Polystyrene | Ultimate tensile strength | Yield strength | Young's modulus (modulus of elasticity) |
Elongation at break
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Hardness
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UV resistance
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|---|---|---|---|---|---|---|
| GPPS | 50-70 MPa | 40-50 MPa | 2-3 GPa | 1-5% | Shore D 80-85 | Poor |
| HIPS | 45-65 MPa | 40-50 MPa | 2-3 GPa | 5-20% | Shore D 85-95 | Moderate |
| EPS | 2-3 MPa | 1-2 MPa | 100-150 MPa | 3-5% | Shore D 30-40 | Poor |
Thermal & Electrical Properties
| Polystyrene | Maximum service temperature | Thermal expansion coefficient | Thermal conductivity |
ESD Safety
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|---|---|---|---|---|
| GPPS | 70°C |
80-100 µm/m°C
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0.1-0.2 W/m·K
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| HIPS | 80°C |
90-100 µm/m°C
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0.2-0.3 W/m·K
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| EPS | 60°C |
50-70 µm/m°C
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0.03-0.05 W/m·K
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