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Microcellular Polypropylene Foam Flame Retardant Materials Custom For EV Battery

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Microcellular Polypropylene Foam flame retardant materials Custom For EV Battery


Microcellular polypropylene foam, when engineered as a flame-retardant material, specifically caters to the stringent safety requirements of electric vehicle (EV) batteries. Manufacturers of EV batteries prioritize materials that not only enhance performance but also significantly reduce the risk of fire and thermal runaway—a critical concern in the industry. Microcellular polypropylene foam stands out due to its unique structure, which offers enhanced thermal insulation, lightweight properties, and superior energy absorption.

5_副本

The custom development of flame-retardant microcellular polypropylene foam for EV batteries involves incorporating fire-resistant additives or compounding techniques that elevate the material's ignition resistance, slow down heat release rates, and minimize toxic gas emissions during combustion. This customization process is crucial in meeting the diverse and specific safety standards set by automotive industries and regulatory bodies worldwide.


Furthermore, the microcellular structure of this polypropylene foam contributes to improved mechanical properties, such as increased toughness and reduced density, making it an ideal choice for lightweighting strategies in EVs. By reducing the overall weight of the vehicle, manufacturers can achieve better efficiency and longer driving ranges, which are key factors for consumers and the competitive EV market.


Property Name

Unit

MPP25


Test Standard

Index

density

kg/m3

36±5

Use Mitutoyo 547-301 thickness gauge to detect initial thickness; by weight, volume
Calculate density;

Compression curve

MPa

10%:0.11≤σ≤0.24
20%:0.14≤σ≤0.34
30%:0.17≤σ≤0.38
40%:0.22≤σ≤0.42
50%:0.28≤σ≤0.47
60%:0.34≤σ≤0.54
70%:0.44≤σ≤0.67

Compression rate 2mm/min 0.02~8MPa Compression curve
Sample size
50*50*2mm

Tensile strength

MPa

≥1.3

Mpa

Tensile modulus

MPa

≥2.8

Shear strength

MPa

≥1.1

ASTM C273C
273M 5mm/min
(shear rate)

Shear stiffness

MPa/ mm

≥0.6

ASTM C273C
273M 5mm/min
(shear rate)

Shear modulus

MPa

≥1.2

ASTM C273C
273M 5mm/min
(shear rate)

Low temperature stretching
-30℃

MPa

≥1.2

ASTM-D3574- 08
5mm/min(Stretch rate)

High temperature stretching
60℃

MPa

≥1.0

ASTM-D3574- 08
5mm/min(Stretch rate)

Double 85 stretched after aging

MPa

>1.2

ASTM-D3574- 08
5mm/min(Stretch rate)

MPP to blue film friction system
Number

/

0.181≤μs≤0.577
0.112≤μk≤0.535

GB 10006-88

roughness

μm

5~40

GB/T
1031-2009

Flame retardant

/

UL94 HF-1(厚度 10mm)

UL94

Prohibited objects

/

RoHS

RoHS

Insulation resistance

≥500

1000V DC 60s


mA

<1

2700V/60s

Thermal conductivity

W/(m
·℃)

≤0.05

GB/T
10295-2008

Specific heat capacity

J/(kg·
℃)

1880±200 (@0℃)
2235±200 (@40℃)
2680±200 (@80℃)

ASTM E1269-2011


This is the TDS of one of our products. The performance can be customized according to your needs.

Applications:

Microcellular polypropylene foam serves as a flame retardant material in Electric Vehicle (EV) batteries by providing insulation that helps in preventing fires. Its use in EV batteries includes:

18_副本

1. Thermal Management**: The foam assists in managing the battery's temperature by insulating it and thus reducing the risk of overheating which can lead to thermal runaway.


2. Energy Absorption**: During an impact or crash, microcellular polypropylene foam can absorb energy, which helps to prevent damage to the battery cells that could result in a fire.


3. Flame Retardancy**: With flame retardant additives, this foam can resist ignition and slow down the spread of flames.


4. Physical Protection**: It can act as a barrier against physical damage to the battery cells from external sources, which can also be a fire risk.


5. Lightweighting**: The foam contributes to the overall reduction in vehicle weight, which can improve the efficiency and range of EVs, as well as the performance of the battery itself.


These properties make microcellular polypropylene foam a critical component in enhancing the safety and efficiency of EV batteries.


Welcome to contact us for detailed information and inquiries regarding our microcellular polypropylene foam, the innovative flame-retardant solution for electric vehicle batteries. Our team is dedicated to providing you with comprehensive support and answers to your questions.We look forward to assisting you with your needs and exploring how our products can contribute to the success of your projects.


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