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For Li-battery Adhesive Grade(FR205)--Powder
Frechem®PVDF FR205
FR205 is a high-viscosity polyvinylidene fluoride (PVDF) resin grade, processed by suspension method and modified by copolymerization. The monomer containers polar functional groups, which can improve the adhesion performance among the active material, the metal pole plates and the polymer, and effectively reduce formula dosage. This grade is mainly used in power batteries with high-capacity, high-rate and high-cycle.
Characteristic
| Physical Properties | Unit | Specification | ASTM Test Standard |
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Appearance |
-- | White powder | Visual Inspection |
| Solubility | -- | Clear and transparent, no impurities |
Visual Inspection |
| Relative Density | g/cm3 | 1.75-1.77 | GB/T 1033.1 |
| Particle Size | g/10 min | ≤110(D50) | ISO 22412 |
| Water Content | % | ≤0.10 | HG/T2902C |
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| Mechanical Properties |
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| Rotation Viscosity | mpa.s | 5000-10000 | 10.28gPVDF/100mlNMP,30°C |
| Weight-average Molecular Weight | -- |
800000-1000000 |
GPC, DMF |
| Molecular weight Distribution | -- | 3.0-4.0 | GPC, DMF |
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| Thermal Properties |
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| Melting Point | ℃ | 160-170 | GB/T 19466.3 |
| Thermal Decomposition |
℃ |
≥370 | TGA |
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Process safety instructions
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. 25 kg and 250 kg packages can be provided. PVDF is packed in double layer of polyethylene plastic bag and then put into a hard cardboard drum.
2. It must be stored in clean, cool, dry place.
