Fire Resistant Battery Insulation Material Flexible Expanded Polypropylene Sheet
Battery Thermal Management System Compressive Pad Expanded Polypropylene
Expanded Polypropylene (EPP) is a highly versatile closed-cell bead foam that provides a unique range of properties, including outstanding energy absorption, multiple impact resistance, thermal insulation, buoyancy, water and chemical resistance, exceptionally high strength to-weight ratio and 100% recyclability. EPP can be made in a wide range of densities, from 15 to 200 grams per litre, which are transformed by moulding into 18 to 260 grams per litre. The steam chest moulding process fuses individual beads into the final product form, resulting in a strong and lightweight shape.
- 1) Excellent in impact resistance, absorption & management.
- 2) Excellent chemical resistance.
- 3) Excellent wear resistance.
- 4) Less compressive creep deformation.
- 5) Less squeaking sound upon contact with other materials.
- 6) Excellent properties and low densities.
- 7) Offers freedom of design without compromising the shape of the parts.
- 8) Can be collected and recycled.
The main performance parameters are shown in Table
| PHYSICAL PROPERTIES * | TEST METHOD | UNITS | TESTED DENSITIES | ||||||
| g/l | 20 | 30 | 40 | 50 | 60 | 80 | 100 | ||
| TENSILE STRENGTH | ISO 1798 DIN 53571 |
kPa | 270 | 450 | 560 | 670 | 760 | 960 | 1150 |
| TENSILE ELONGATION | ISO 1798 DIN 53571 |
% | 21 | 20 | 19 | 18 | 17 | 15 | 13 |
| COMPRESSIVE STRENGTH | ISO 844 | kPa | |||||||
| 25% STRAIN | DIN 53421 | 80 | 150 | 210 | 275 | 340 | 500 | 700 | |
| 50% STRAIN | Test speed | 150 | 200 | 300 | 370 | 475 | 700 | 960 | |
| 75% STRAIN | 5 mm/min | 350 | 460 | 600 | 800 | 1000 | 1600 | 2300 | |
| COMPRESSION SET 25% STRAIN - 22H - 23°C | ISO 1856 C Stabilizing 24H |
% | 13.5 | 12.5 | 12.0 | 12.0 | 11.5 | 11.5 | 11.5 |
| STAUCHHÄRTE | ISO 3386 40% strain |
kPa | 80 | 105 | 125 | 140 | 150 | 170 | 185 |
| BURNING RATE | FMVSS 302 ISO 3795 sample thickness 12.5 mm |
mm/min | 100 | 80 | 60 | 50 | 40 | 30 | 25 |
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