182702

Poly(vinylidene fluoride)

average M_w ~534,000 by GPC, powder

• Synonim(y): PVDF
• Wzór liniowy: (CH₂CF₂)_n
• Numer CAS: 24937-79-9
• Numer MDL: MFCD00084470
• Kod UNSPSC: 12162002
• Identyfikator substancji w PubChem: 24851010
• NACRES: NA.23

Właściwości

• ciśnienie pary: 15 mmHg ( 32 °C)
• Poziom jakości: 100
• Postać: powder
• masa cząsteczkowa: average M_w ~534,000 by GPC
• współczynnik refrakcji: n20/D 1.42
• temp. przejścia: T_g −38 °C; T_m 171 °C
• gęstość: 1.74 g/mL at 25 °C
• ciąg SMILES: FC(F)=C
• InChI: 1S/C2H2F2/c1-2(3)4/h1H2
• Klucz InChI: BQCIDUSAKPWEOX-UHFFFAOYSA-N

Opis

Opis ogólny

Poly(vinylidene fluoride) PVDF is a semi crystalline non-centrosymmetric polymer which exhibits piezo-, pyro- and ferroelectric properties. It is a linear polymer that shows permanent electric dipoles perpendicular to the direction of the molecular chain. These dipoles result from the difference in electronegativity between the atoms of hydrogen and fluorine with respect to carbon. Depending on the processing conditions, PVDF exhibits several different crystalline phases (α,β,γ,δ). The β phase of PVDF is the phase that exhibits the best ferroelectric and piezoelectric properties.

Zastosowanie

Poly(vinylidene fluoride) (PVDF) is used in nanoporous electrodes. It is used to synthesize composites comprising of ultrafine fibers of PVDF embedded with carbon nanotubes. It can be used in sensors, actuators, for energy storage, sphygmomanometers, pressure sensors and nanogenerators, lithium ion batteries. Additionally, it may find application as matrix for PVDF-nanoclay nanocomposites and PVDF acrylic rubber/clay nanocomposite hybrid.

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 3
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable
• Środki ochrony indywidualnej: Eyeshields, Gloves, type N95 (US)