Fit Tolerance Limit Pressure Adjusting Material Compressive Stress pressure adjusting material
| Colour |
The basic colour is white, and other colours of products are agreed upon by the supply and demand parties |
| Uniformity |
The colour should be even |
| Stoma |
Perforations of ≧3mm are not allowed. |
| Stains |
Foam products are not allowed to have stains |
MPP foam is a closed-cell foam made from polypropylene beads that provides exceptional thermal insulation, low thermal conductivity, and excellent temperature stability. As a battery insulation material, MPP foam is highly suitable for NEV batteries, which require stable operating temperatures to ensure optimal performance and safety.
MPP foam is available in various densities and can be customized to meet the specific thermal protection requirements of different NEV battery applications. With its low thermal conductivity and excellent insulation performance, MPP foam ensures that NEV batteries maintain a stable operating temperature, reducing the risk of overheating or damage to the battery.
MPP foam also has excellent fire protection properties, classified as UL94 V-0, indicating its outstanding resistance to ignition and non-propagation of flames once the ignition source is removed. These fire protection properties make MPP foam an ideal material for NEV battery applications, helping to prevent the spread of fire and improve overall safety. In the event of a fire, MPP foam can help to contain the flames and extinguish them, reducing the risk of damage and injury.
Features
- Lightweight and high strength
- Clean and environmentally friendly
- Good buffer protection performance
- Good surface protection properties
- Good waterproof performance
- Good thermal insulation performance
- Good chemical resistance
- Recyclable
The main performance parameters are shown in Table
| Dimensional deviation(Unite:mm) |
| Length |
Width |
Thickness |
| Size |
Tolerance |
Size |
Tolerance |
Size |
Tolerance |
| ≤1000 |
Positive tolerance |
≤250 |
Positive tolerance |
≤9 |
≤±0.5 |
| 1001～2000 |
Positive tolerance |
251～500 |
Positive tolerance |
10～19 |
≤±1 |
| 2001～3000 |
Positive tolerance |
501～1300 |
Positive tolerance |
20~29 |
≤±2 |
| |
|
|
|
30 以上 |
≤±3 |
| Note: If The dimensional deviations of other specifications are other than those specified in this table, it may be agreed by the supply and demand parties according to the contract |
| Test the project |
Items |
Inspection standards |
| 7165 |
7107 |
| Apparent density/(kg/m³) |
9.5±1.5 |
16±4 |
GB/T6343 |
| Elongation at break(%) |
≥10 |
≥10 |
ISO 1798 |
Compressive stress (25°C)
(KPa) |
5≤µ±3σ≤25@30%
8≤µ±3σ≤30@50% |
10≤μ±3σ≤65@30%
20≤μ±3σ≤70@50% |
GB/T 8813(ASTM
D 3574 TestC) |
Compressive stress (60°C)
(KPa) |
5≤µ±3σ≤25@30%
8≤µ±3σ≤30@50% |
10≤μ±3σ≤65@30%
20≤μ±3σ≤70@50% |
GB/T 8813(ASTM
D 3574 TestC) |
Compressive stress (-30°C)
(KPa) |
5≤µ±3σ≤25@30%
8≤µ±3σ≤30@50% |
10≤μ±3σ≤65@30%
20≤μ±3σ≤70@50% |
GB/T 8813(ASTM
D 3574 TestC) |
Compression after high temperature aging
(120℃)(KPa) |
5≤@30%
8≤@50% |
10≤@30%
20≤@50% |
GB/T 8813(ASTM
D 3574 TestC) |
| Compression after High Temperature Aging (Double 85) (KPa) |
5≤@30%
8≤@50% |
10≤@30%
20≤@50% |
GB/T 8813(ASTM
D 3574 TestC) |
| Tear strength/(N/m) |
≥35 |
≥35 |
GB/T10808 |
| Tensile strength (KPa) |
≥90 |
≥90 |
ISO 1798 |
| Permanent compression set(%) |
≤25 |
≤25 |
ASTM D1056 C |
| Low temperature embrittlement |
Unbreaking |
Unbreaking |
/ |
| Hardness (Shore 00) |
20-40 |
30-50 |
GB/T 531.1-2008 |
Thermal conductivity (10.0±2°C)
/[W/(m·K)] |
≤0.04 |
≤0.06 |
GB/T 10295 |
| Flame retardant |
V-0 |
V-0 |
UL94 |
| Water vapor adsorption rate(%) |
≤30 |
≤30 |
ASTM C1104 |
| Sulfites (ppm) |
0 |
0 |
GB/T 5009.34 |
| Volume resistivity (Ω.cm) |
≥108 |
≥108 |
ASTM D257 |
| Surface resistivity(Ω) |
≥108 |
≥108 |
ASTM D257 |
| Prohibited objects |
RoHS & REACH
&ELV |
RoHS & REACH &ELV |
RoHS & REACH
&ELV |
Typical Applications
- The functions of heat insulation, buffering, flame retardancy,
- Thermal runaway protection and
- New energy passenger vehicle cells and modules
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