Saltar al contenido
Merck
Todas las fotos(5)

Documentos clave

Ver Toda la documentación

182702

Sigma-Aldrich

Poly(vinylidene fluoride)

average Mw ~534,000 by GPC, powder

Sinónimos:

PVDF

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(5)

About This Item

Fórmula lineal:
(CH2CF2)n
Número de CAS:
24937-79-9
Número MDL:
MFCD00084470
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
24851010
NACRES:
NA.23
En este momento no podemos mostrarle ni los precios ni la disponibilidad

presión de vapor

15 mmHg ( 32 °C)

Formulario

powder

mol peso

average Mw ~534,000 by GPC

índice de refracción

n20/D 1.42

temperatura de transición

Tg −38 °C
Tm 171 °C

densidad

1.74 g/mL at 25 °C

cadena SMILES

FC(F)=C

InChI

1S/C2H2F2/c1-2(3)4/h1H2

Clave InChI

BQCIDUSAKPWEOX-UHFFFAOYSA-N

¿Está buscando productos similares? Visita Guía de comparación de productos

Categorías relacionadas

Descripción general

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.[1][2][3][4]

Aplicación

Poly(vinylidene fluoride) (PVDF) is used in nanoporous electrodes.[5] It is used to synthesize composites comprising of ultrafine fibers of PVDF embedded with carbon nanotubes.[2] It can be used in sensors, actuators, for energy storage,[1] sphygmomanometers, pressure sensors and nanogenerators,[4] lithium ion batteries.[6] Additionally, it may find application as matrix for PVDF-nanoclay nanocomposites[7] and PVDF acrylic rubber/clay nanocomposite hybrid.[8]

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
0000347337
0000347337
0000419528
0000419528
0000412314

¿No ve la versión correcta?

Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.

Busque por un COA

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Los clientes también vieron

Slide 1 of 3

1 of 3

Polyvinylidenefluoride (PVDF), film, thickness 0.0045 mm, size 150 × 150 mm, condition biaxially oriented

GF43004854

Polyvinylidenefluoride

1-Metil-2-pirrolidinona anhydrous, 99.5%

Sigma-Aldrich

328634

1-Metil-2-pirrolidinona

Polyvinylidenefluoride (PVDF), granule, 5 mm nominal granule size, weight 1000 g, condition additive free polymer

GF70021886

Polyvinylidenefluoride

Thermal-to-electric energy conversion of a nanoporous carbon
Yu Q, et al
Journal of Power Sources, 183(1), 403-405 (2008)
Shu-Hua Wang et al.
Nanoscale research letters, 9(1), 522-522 (2014-10-08)
Poly(vinylidene fluoride) (PVDF) ultrafine fibers with different proportions of multi-walled carbon nanotube (MWCNT) embedded have been fabricated using a modified electrospinning device with a rotating collector. With the increasing of MWCNT content, the β phase was noticeable enhanced, and the
Hot Plate Annealing at a Low Temperature of a Thin Ferroelectric P(VDF-TrFE) Film with an Improved Crystalline Structure for Sensors and Actuators.
Sensors (Basel, Switzerland), 14(10), 19115-19127 null
Wenzhong Ma et al.
Membranes, 4(2), 243-256 (2014-06-25)
The crystallization behaviors of two copolymers of PVDF were studied, and the effect of copolymerized chains on the crystallization behavior was investigated. The results indicated that both copolymers had a lowered crystallization temperature and crystallinity. The crystallization rate was improved
Chi Yan Lai et al.
Membranes, 4(1), 55-78 (2014-06-25)
Current commercial polymer membranes have shown high performance and durability in water treatment, converting poor quality waters to higher quality suitable for drinking, agriculture and recycling. However, to extend the treatment into more challenging water sources containing abrasive particles, micro
Ver todos los artículos relacionados

Questions

1–9 of 9 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Can I coat it on top of my sensor as a layer to sense CO2?

    1 answer

    1. Yes, this product can be dispersed in organic solvents, such as 1-Methyl-2-pyrrolidinone (NMP), to form a slurry for coating. However, there is no test on its performance for CO2 sensing.

      Helpful?

  4. is the purity of this product >99%?

    1 answer

    1. The purity of this product is not determined.

      Helpful?

  5. What is the particle size of the PVDF powder?

    1 answer

    1. The particle size of this material is approximately 5 um.

      Helpful?

  6. Enquiry on chemical compatibility of PVDF with TMAH 25%.

    1 answer

    1. PVDF is not compatible with basic solutions such as those prepared using ammonium hydroxide, sodium hydroxide or tetramethylammonium hydroxide.

      Helpful?

  7. Is this material available for nanofibers fabrication to be integrated in textile application And what about its piezoelectric properties?

    1 answer

    1. This product has not been tested for the suitability for piezoelectric material. However, it may be helpful to review the literature below:

      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7825031/
      https://www.sciencedirect.com/science/article/pii/S0266353817313751

      Helpful?

  8. We need piezoelecteic beta phase pvdf .. Is it available? If not can we know which phase pvdf is available alpha, beta, gamma etc??

    1 answer

    1. Unfortunately, the phase is not determined for the PVDF products currently offered.

      Helpful?

  9. Is this sample modified Poly(Vinylidene Fluoride)(PVDF) or pure homopolymer PVDF?

    1 answer

    1. Poly(Vinylidene Fluoride)(PVDF) sample is a pure homopolymer of Vinylidene Fluoride.

      Helpful?

Reviews

No rating value

Active Filters

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico