DSM Arnitel® PM581 58 Shore D, Extrusion Grade Copolyester Elastomer (North America)
Subcategory: Elastomer, TPE; Polyester TPE; Polymer; Thermoplastic
Material Notes:
Product description: Arnitel® combines the advantages of engineering thermoplastics, being easy to process with excellent mechanical properties, at the same time with the flexibility of rubbers. Arnitel does not require vulcanization. This leads to substantial reductions in part cost. Arnitel can be used over a wide range of temperatures. Arnitel has exceptional fatigue, creep resistance and resistance to oils, greases and many other chemicals. Characteristics of Arnitel: - Excellent strength over a wide range of temperatures
- Excellent dynamic properties e.g. creep and fatigue
- High heat resistance
- Exceptional resistance to oils and greases
- Good chemical resistance
- High degree of versatility in processing
- Easy coloring using masterbatches
- Surface quality from high gloss to textured
- Excellent heat resistance (long term 165°C)
- Good electrical insulation properties
- Low moisture absorption, excellent dimensional stability
- Easy flow, fast cooling times
Typical Applications: - Automotive: Arnitel® is extensively used in the automotive industry for applications requiring exceptional fatigue resistance and resistance to oil and greases. Examples are: Rack and Pinion Bellows, Constant Velocity Joint Boots (CVJ Boots), Air brake tubings.
- Arnitel in the Electronic and Consumer Goods Industry: Arnitel® finds enormous potential and is also widely used in the consumer electronics by some of the world's best companies. Arnitel® is the best choice for low noise gears where their exceptional processability without any defects such as flash, makes it the material solution of choice. Arnitel® is also used in highly demanding applications such as in mobile phone antennas.
Arnitel® has exceptional flexibility and can perform or even outperform functions that normally require conventional rubbers. Available in a wide range of hardnesses, Arnitel can replace metals, thermoplastics, leather and rubber, often with a reduction in finished part costs. Information provided by DSM.
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| Physical Properties | Original Value | Comments |
|
| Density | 1.23 g/cc | ISO 1183 |
| Water Absorption | 2.5 % | Sim. to ISO 62 |
| Moisture Absorption at Equilibrium | 0.4 % | Humidity Absorption; Sim. to ISO 62 |
| Melt Flow | 4.305 g/10 min | Calculated from Volume Flow Rate of 3.5 cm3/10 min, 2.16 kg, 230°C; ISO 1133 |
Mechanical Properties |
|
| Hardness, Shore D | 55 | 3 s; ISO 868 |
| Tensile Strength at Break | 24.5 MPa | ISO 527-1/-2 |
| Tensile Strength, Yield | 13.1 MPa | Stress at 10% Strain; ISO 527-1/-2 |
| Tensile Strength, Yield | 17 MPa | Stress at 50% Strain; ISO 527-1/-2 |
| Tensile Strength, Yield | 17.9 MPa | Stress at 100% Strain; ISO 527-1/-2 |
| Tensile Strength, Yield | 9.3 MPa | Stress at 5% Strain; ISO 527-1/-2 |
| Elongation at Break | 200 % | ISO 527-1/-2 |
| Tensile Modulus | 0.3 GPa | ISO 527-1/-2 |
| Izod Impact, Notched (ISO) | NB | 23°C; ISO 180/1A |
| Charpy Impact, Notched, Low Temp | 1.6 J/cm² | -30°C; ISO 179/1eA |
| Charpy Impact, Notched | NB | 23°C; ISO 179/1eA |
Electrical Properties |
|
| Volume Resistivity | Min 1e+015 ohm-cm | IEC 60093 |
| Surface Resistance | 1e+013 ohm | IEC 60093 |
| Dielectric Constant | 4.4 | 1 MHz; IEC 60250 |
| Dielectric Constant, Low Frequency | 4.7 | 100Hz; IEC 60250 |
| Dielectric Strength | 21 kV/mm | IEC 60243-1 |
| Dissipation Factor | 0.081 | 1 MHz; IEC 60250 |
| Dissipation Factor, Low Frequency | 0.031 | 100 Hz; IEC 60250 |
| Comparative Tracking Index | 600 V | IEC 60112 |
Thermal Properties |
|
| CTE, linear 20°C | 110 µm/m-°C | Parallel; ISO 11359-1/-2 |
| CTE, linear 20°C Transverse to Flow | 110 µm/m-°C | Normal; ISO 11359-1/-2 |
| Melting Point | 218 °C | 10°C/min; ISO 11357-1/-3 |
| Deflection Temperature at 1.8 MPa (264 psi) | 100 °C | ISO 75-1/-2 |
| Vicat Softening Point | 105 °C | 50°C/h 50N; ISO 306 |
| Vicat Softening Point | 205 °C | 50°C/h 10N; ISO 306 |
| Flammability, UL94 | HB | 1.6 mm nominal thickness; IEC 60695-11-10 |
Descriptive Properties | |
| Film Extrusion | Yes | |
| Heat stabilized or stable to heat | Yes | |
| High impact or impact modified | Yes | |
| Other Extrusion | Yes | |
| Profile Extrusion | Yes | |
| Sheet Extrusion | Yes | |
| Without fillers | Yes | |
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