Polyvinylidene Fluoride（PVDF） CAS#24937-79-9
Excellent Chemical Stability – PVDF is a highly non-reactive fluoropolymer with outstanding resistance to chemical attack, making it suitable for harsh environments.
Superior Weather and UV Resistance – It exhibits excellent aging resistance, weather resistance, and UV radiation resistance, ensuring long-term durability in outdoor applications.
Good Solubility in Polar Solvents – PVDF can be dissolved in strong polar solvents such as dimethylacetamide, supporting flexible processing and application development.
Wide Industrial Applicability – It is widely used in engineering plastics, coatings, insulating materials, ion exchange membranes, capacitors, sealing rings, and corrosion-resistant equipment.
Products Description of Polyvinylidene Fluoride (PVDF)
Polyvinylidene fluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer. It is produced by the polymerization of 1,1-difluoroethylene and can be dissolved in strong polar solvents such as dimethylacetamide.
PVDF exhibits excellent properties, including resistance to aging, chemicals, weathering, and UV radiation.
It can be used as an engineering plastic for the manufacture of sealing rings, corrosion-resistant equipment, and capacitors, as well as for coatings, insulating materials, and ion-exchange membrane applications.
| English Name | Polyvinylidene fluoride |
| English Synonyms | VINYLIDENE FLUORIDE POLYMER;PVDF;PVF2;POLY(VINYLIDENE FLUORIDE);POLY(VINYLIDENE FLUORIDE), POWDER;PolyvinylideneFluoride(Pvdf);PVDF(polyvinylidene fluoride);1,1-Difluoroethylene homopolymer |
| CAS Number | 24937-79-9 |
| Molecular Formula | C2H2F2 |
| Molecular Weight | 64.0340864 |
| EINECS Number | 607-458-6 |
| Melting point | 166-170℃ |
| Density | 1.78 g/mL at 25 ℃ |
| Tg | -38 |
| Vapor pressure | 15 mm Hg (32 °C) |
| Refractive index | n20/D 1.42 |
| Storage conditions | Sealed in dry,Room Temperature |
| Solubility | Polar solvents such as organic esters and amines: soluble |
| Form | Powder |
| Color | White |
| Water solubility | Soluble in organic esters, dimethylacetamide and amines. Insoluble in water. |
| Thermal conductivity | 0.126 W/(m-K) |
| Stability | Stable. Incompatible with strong oxidizing agents and silicon dioxide. |
| Cosmetic composition Efficacy | Adhesives Skin Conditioning |
| InChI | InChI=1S/C2H2F2/c1-2(3)4/h1H2 |
| InChIKey | BQCIDUSAKPWEOX-UHFFFAOYSA-N |
| Smiles | C(F)(F)=C |
| Surface tension | 30.3mN/m at 20℃ |
Product Application of Polyvinylidene Fluoride (PVDF)
PVDF has a wide range of applications, mainly focusing on three key areas: new energy, environmental protection, and industrial corrosion resistance.
New Energy Batteries: It is a key material used as a cathode binder in lithium-ion batteries, with a market penetration rate of up to 90%. It is also applied in separator coatings, playing an important role in improving battery lifespan and stability.
Water Treatment Membranes: PVDF ultrafiltration membranes are resistant to organic contamination, oxidation, and offer high mechanical strength. They are widely used in drinking water purification, industrial wastewater treatment, and seawater desalination pretreatment.
Construction and Chemical Industry: In construction, it is used in fluorocarbon coatings for high-end aluminum curtain walls, providing excellent weather resistance. In the chemical industry, it is used in pipes, valves, pumps, and tank linings due to its outstanding corrosion resistance.
Other Applications: PVDF is also used in photovoltaic backsheet films, wire and cable insulation, sensors, and medical devices such as immunoblotting membranes.
