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Lithium Battery Diaphragm Coating Grade
Product Name:
Freflon® PVDF FR213
Product Application:
Freflon® PVDF FR213 is specially developed copolymer of emulsion polymerization to be used as coating materials for lithium battery diaphragm coating. It's good solubility in some solvents, and excellent cohesiveness to the electrode material.
Typical property Data:
|
General properties |
Typical value |
Unit |
Test Method |
|
Appearance |
White powder |
|
|
|
Standard Relative Density |
1.75~1.80 |
g/cm3 |
ASTMD792, @23°C |
|
Melt viscosity |
3000-3800
|
Pa·S |
ASTM D4440 |
|
Water absorption |
≤0.10 |
% |
Karl Fish |
|
Particle size D50 |
≤9 |
Um |
ASTM E251 |
|
|
|||
|
Thermal properties |
Typical value |
Unit |
Test Method |
|
Melting point |
148-155 |
°C |
ASTMD3418,10°C/min |
|
|
|||
|
Metal impurity |
Typical value |
Unit |
Test Method |
|
Zn |
≤10 |
ppm |
HG/T3944 |
|
Ni |
≤10 |
ppm |
HG/T3944 |
| Fe |
≤10 |
ppm |
HG/T3944 |
| Cr |
≤10 |
ppm |
HG/T3944 |
|
|
|||
|
Electrical properties |
Typical value |
Unit |
Test Method |
|
Surface resistivity |
≥1.1014 |
Ohm/square |
ASTMD257/D in 53483 |
|
Volume resistivity |
≥1.1014 |
Ohm.cm |
ASTM D257/D in 53483 |
Handling and storage:
(1) This product should be processed under 370 ℃ to avoid producing toxic gases.
(2) PVDF has good fire resistance and smoke inhibition property, however, when meets with fire, it will release toxic hydrogen fluoride gas and fluorocarbon compounds.
(3) Operators should take good care of personal protection during the use procedure and processing.
Packaging and storage:
(1) Powder is 500kg/woven bag and pellets are 25kg/bag, 1000kg/pallet or 1000kg/woven bag.
(2) PVDF is packed in double layer of polyethylene plastic bag.
(3) Store in a cool and dry place.
