182702

Poly(vinylidene fluoride)

average M_w ~534,000 by GPC, powder

• 동의어(들): PVDF
• Linear Formula: (CH₂CF₂)_n
• CAS Number: 24937-79-9
• MDL number: MFCD00084470
• UNSPSC 코드: 12162002
• PubChem Substance ID: 24851010
• NACRES: NA.23

속성

• vapor pressure: 15 mmHg ( 32 °C)
• 양식: powder
• 분자량: average M_w ~534,000 by GPC
• refractive index: n20/D 1.42
• 전이 온도: T_g −38 °C; T_m 171 °C
• density: 1.74 g/mL at 25 °C
• SMILES string: FC(F)=C
• InChI: 1S/C2H2F2/c1-2(3)4/h1H2
• InChI key: BQCIDUSAKPWEOX-UHFFFAOYSA-N

설명

일반 설명

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.

애플리케이션

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.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)