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.
EPP is a fantastic material used for purposes which require elasticity in repetitive static and dynamic loads. It's a properly foamed polypropylene in the form of closed grains filled with air, which create closed cellar structures. It is the structure that polypropylene foam owes its properties to.
Low weight, high energy absorption, well chemical resistance and great susceptibility to thermoforming, to name a few. Furthermore, it has shape memory - that is the ability to return to the previous shape after being exposed to a load.
Features
- 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 |
|
product Name
|
EPP foam sheet
|
|
Color
|
Usually pink, white, and black.also as customers' requirement
|
|
Size
|
Standard
|
|
MOQ
|
1000 pieces
|
|
style
|
customized
|
|
Delivery
|
2-7 days
|
|
Material
|
EPP
|
|
Packing
|
In cartons or as customers' requirement
|
|
|
1. Flexible and light.
|
|
2. Moisture proofing.
|
|
3. Anti-oil and anti-ageing and anti-chemicals.
|
|
4. Suitability for lamination.
|
|
5. Impact and vibration absorption.
|
|
|
• Packaging materials
|
|
• Medical Apparatus
|
|
• Furniture field
|
|
• Construction and building
|
|
|
automobile parts
|
sports
|
environmental furniture
|
|
bumper
|
sport helmet liner
|
bath mat
|
|
sun visor
|
yoga column
|
toilet mat
|
|
car seat
|
kneepad
|
children‘s bath products
|
|
headrest
|
shoulder pad
|
heat insulation box
|
|
energy-absorbing block
|
toolbox liner
|
mattress
|
|
car Jack box
|
bench, stool
|
|
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