PVDF — Polyvinylidene Fluoride (Kynar) Pellets Supplier China | Lithium Battery Binder
PVDF (Polyvinylidene Fluoride, Kynar) is a fluorothermoplastic known for:
- Lithium battery binder (Kynar 761 / 731 main grade)
- Chemical inertness (acids / bases / chlorinated solvents)
- UV / weathering resistance
- Piezoelectric (sensor applications)
Key Properties of PVDF
| Property | Value |
|---|
| **Full name** | Polyvinylidene Fluoride (Kynar) |
|---|---|
| **Density** | 1.77-1.80 g/cm³ |
| **Tensile strength** | 35-55 MPa |
| **Heat deflection temp (HDT)** | 100-150°C |
| **Continuous service temp** | 150°C |
| **Melting point** | 165-172°C |
| **Chemical resistance** | Excellent (acids / bases / chlorinated) |
| **UV resistance** | Excellent |
PVDF Subdivisions
| Subdivision | Description | Application |
|---|
| **Kynar 761 (PVDF binder)** | Lithium battery binder grade | Li-ion battery cell cathode binder |
|---|---|---|
| **Kynar 731 (PVDF powder coating)** | Powder coating grade | Chemical piping / tank lining |
| **Kynar 500 (PVDF coating)** | Architectural coating grade | Roofing / weatherable coating |
| **PVDF Film** | High-purity film | Semiconductor / medical |
| **PVDF Cable** | Wire / cable insulation | High-temp electrical |
Applications of PVDF
Lithium Battery (main grade)
- Cathode binder for Li-ion cells
- Kynar 761 main grade
- Kynar 731 also used
Chemical Processing
- Pipes / tanks / valves
- Chemical pipes (HCl / H2SO4 resistant)
- High-purity chemical handling
Architectural
- Weatherable coatings (factories / stadiums)
- Roofing (Kynar 500 PVDF coating)
- High-end exterior building components
Semiconductor / Medical
- High-purity fluid handling
- Medical implants (PTFE替代 but generic)
Wire / Cable
- High-temp cable insulation
- Aerospace wire harness
Packaging
- Pellets: 25 kg / bag
- Powder: 25 kg / drum (coating grade)
- Film: Roll sizes
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 | 📧 [email protected]
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