Written by AZoMSep 16 2001
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Polymer Type |
| Thermoplastic |
Advantages |
| Superior compressive strength, improved heat distortion temperature, tensile strength and modulus compared with unmodified PA 12. Easy to process compared to glass fibre filled grades. Exhibits uniform and predictable shrinkage with improved warpage. Mechanical properties are also more isotropic than for glass fibre filled grades. Glass tends to improve self |
Disadvantages |
| Heat distortion temperature, tensile strength and modulus are not as high as for glass fibre reinforced grades. |
Typical Properties |
| | | Density (g/cm3) | 1.44 | | Surface Hardness | RR113 | | Tensile Strength (MPa) | 55 | | Flexural Modulus (GPa) | 3 | | Notched Izod (kJ/m) | 0.04 | | Linear Expansion (/°C x 10-5) | 8 | | Elongation at Break (%) | 25 | | Strain at Yield (%) | N/Y | | Max. Operating Temp. (°C) | 70 | | Water Absorption (%) | 0.1 | | Oxygen Index (%) | 21 | | Flammability UL94 | V2 | | Volume Resistivity (log ohm.cm) | 13 | | Dielectric Strength (MV/m) | 45 | | Dissipation Factor 1kHz | 0.04 | | Dielectric Constant 1kHz | 3.7 | | HDT @ 0.45 MPa (°C) | 155 | | HDT @ 1.80 MPa (°C) | 110 | | Material. Drying hrs @ (°C) | 2 @ 90 | | Melting Temp. Range (°C) | 200 - 240 | | Mould Shrinkage (%) | 0.9 | | Mould Temp. Range (°C) | 40 - 80 | |
Applications |
| Technical parts of high dimensional stability. Dish washer parts, watchcases, electrical coils and bobbins. Microscope stages, bearing brushes, valves, radial cams, eccentric cams, casing / bushing guides, ink transfer rollers for printers. |
| Source : Abstracted from Plascams For more information on Plascams please visit RAPRA Technology Ltd. |