Pouch Battery Material
Styrene butadiene rubber (SBR)
Product Description
Styrene butadiene rubber: a synthetic rubber made by copolymerization of styrene and butadiene. Its chemical formula can be expressed as: - (CH2-CH=CH-CH2) m - (CH-CH2) n -; As an adhesive for electrodes, it improves the mechanical strength and stability of the electrodes.
Basic Info.
|
Parameter |
|
|
Chemical composition |
copolymer of styrene and butadiene |
|
Molecular weight |
100000~1000000 g/mol |
|
Density |
0.94 g/cm ³ |
|
Glass transition temperature (Tg) |
-50 ° C~-60 ° C |
|
Shore A hardness |
50~70 |
|
Tensile strength |
10-25 MPa |
|
Elongation rate |
300%~500% |
|
Electrical resistivity |
10 ¹²~10 ¹⁴Ω· cm |
|
Thermal stability |
SBR has good thermal stability, but long-term use temperature should not exceed 80 ° C |
|
Thermal conductivity |
0.15~0.25 W/m · K |
|
Solid content |
40%~50% |
|
Viscosity |
1000~3000 mPa · s (25 ° C) |
|
Particle size |
100-200 μ m“ |