U.H.M.W. Pe Properties
Physical properties
| Property | Test method | Test specimen | U.H.M.W.pe 1000 | Unit |
|---|---|---|---|---|
| Density (of the homogenously pressed material) | DIN 53 749 | Sheet | 0.94 | g/cm³ |
| Viscosity (VZ) | DIN 53 728 (Page 4) | 0.0003 g/cm³ (Concentration in Decahydronaphthalene) | 2300 | g/cm³ |
| Melt index (MFI 190/5) | DIN 53 735 | Powder | <0.01 | g/10min |
| Melt index (MFI 190/15) | DIN 53 735 | Powder | <0.1 | g/10min |
| Yield value F (150/10) | DIN 53 493 | Dumbbell bar | 0.20 – 0.25 | N7mm² |
| Bulk density | DIN 53 468 | Powder | 0.35 – 0.40 | g/cm³ |
Mechanical properties measured under standard climatic conditions (23°C and 50% RH)
| Tensile Test | DIN 53 455 – ISO/R 527 | – | – | – |
|---|---|---|---|---|
| Yield stress (tensile strength) | Testing rate100 mm/min | Test specimen no. 4 | 20 | N/mm² |
| Ultimate tensile strength | Testing rate100 mm/min | Test specimen no. 4 | 40 | N/mm² |
| Elongation at break | Testing rate100 mm/min | Test specimen no. 4 | >350 | % |
| 3.5% flexural stress | DIN 53 452 | 80 x 10 x 4 mm | 20 | N7mm² |
| Torsional rigidity at +23°C | DIN 53 447 | 60 x 6.35 x 2 mm | 250 | N7mm² |
| Torsional rigidity at -40°C | DIN 53 447 | 60 x 6.35 x 2 mm | 370 | N/mm² |
| Flexural creep modulus (1 minute value) | Flexural creep test 0b = 2 N/mm² | 120 x 20 x 6 mm | 750 | N/mm² |
| Flexural creep modulus (6 day value) | Flexural creep test 0b = 2 N/mm² | 120 x 20 x 6 mm | 200 | N/mm² |
| Ball indentation hardness (30 sec value) | DIN 53 456 (test load 365 N) | 4 mm sheet | 40 | N/mm² |
| Shore hardness D | DIN 53 505 | 6 mm sheet | 64-67 | – |
| Notched impact strength | DIN 53 453 | Standard small test bar | No faliure | mJ/mm² |
| Notched impact strength (with 15 V notch) | DIN 53 453 | 120 x 15 x 10 mm | >80-140 | mJ/mm² |
| Tensile impact strength at + 23°C | DIN 53 448 | Standard test specimen | 3000 | mJ/mm² |
| Tensile impact strength at -100°C | DIN 53 448 | Standard test specimen | 3000 | mJ/mm² |
| Abrasion loss by the sand-slurry method | Internal test method (24hr at 1200 min-1 quartz sand of particle size 0.2 – 1.0 mm) | 76.2 x 25.4 x 6.35 mm | 70-100 | – |
Thermal properties
| Property | Test method | test specimen | U.H.M.W.pe 1000 | Unit |
|---|---|---|---|---|
| Dimensional stability under heat (heat distortion temperature) | DIN 53 461; ISO/R75 method A | >110 x 10 x 4 mm | 47 | °C |
| Vicat softening point VST | DIN 53 460 method B | 10 x 10 x 4 mm | 79 | °C |
| Crystalline melting range | Polarising microscope | Microtome section, 20μm | 135 – 138 | °C |
| Coefficient of linear expansion (between 23°C and 80°C) | DIN 53 735 | 25 x 4 x 4 mm | mm = 2.104 | k-1 |
| Thermal conductivity at 23°C | DIN 52 612 (two sheet method) | 8 mm sheet | 0.42 | W/m.k |
| Specific heat at 23°C | Adiabatic calorimeter | Powder | 1.84 | kJ/kg. K |
Wlectrical properties measured under standard climatic conditions (23°C and 50% RH)
| Volume resistivity | DIN 53 482; VDE 0303, part 3 | 1mm sheet | > 5 .1015 | w.cm |
| Surface resistance | DIN 53 482; VDE 0303, part 3 | 1mm sheet | >1014 | W |
| Dielectric strength | DIN 53 481; VDE 0303, part 2 | 0.2mm film | 900 | kv/cm |
| Relative permitivity – at 50HZ | DIN 53 483; VDE 0303, part 4 | 1mm sheet | 1.9 | – |
| Relative permitivity at 1MHz | DIN 53 483; VDE 0303, part 4 | 1mm sheet | 2.3 | – |
| Dissipation factor – at 50Hz | DIN 53 483; VDE 0303, part 4 | 1mm sheet | 1.9-104 | – |
| Dissipation factor at 1MHzv | DIN 53 483; VDE 0303, part 4 | 1mm sheet | – | |
| Tracking – CTI | DIN 1EC 112, part 1 | 15 x 15 x 4mm | 600 | Comparative index |
| Tracking – CTIM | DIN 1EC 112, part 1 | 15 x 15 x 4mm | – | Comparative index |
| Arc resistance | DIN 53 484; VDE 0303, part 5 | Sheet – 120 x 120 x 10mm | 1.4 | Rating |
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