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427160

Sigma-Aldrich

Poly(vinylidene fluoride-co-hexafluoropropylene)

average Mw ~400,000, average Mn ~130,000, pellets

Sinónimos:

PVDF-HFP

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About This Item

Fórmula lineal:
(-CH2CF2-)x[-CF2CF(CF3)-]y
Número de CAS:
9011-17-0
Número MDL:
MFCD00212573
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
24866741
NACRES:
NA.23
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Formulario

pellets

Nivel de calidad

100

índice de fusión

3.5-7.5 g/10 min (230°C/12.5kg)

mol peso

average Mn ~130,000
average Mw ~400,000

fuerza del impacto

12-20 ft-lb/in. (Izod, ASTM D 256, notched)

constante dieléctrica

9.4-10.6, 100 Hz (ASTM D 150)

dureza

65-70 (Shore D, ASTM D 2240)

índice de refracción

n20/D 1.41

viscosidad

23,000-27,000 poise(230 °C) (100 sec-1; typical)(lit.)

temperatura de transición

brittleness temperature -62 °C (ASTM 2800)
Tm 140-145 °C (ASTM D 3418)

densidad

1.77 g/mL at 25 °C

cadena SMILES

FC(F)=C.FC(F)=C(F)C(F)(F)F

Clave InChI

OQMIRQSWHKCKNJ-UHFFFAOYSA-N

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Descripción general

Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) is a hydrophobic crystalline copolymer with excellent properties such as good thermal stability, high polarity, ionic conductivity, and good solvent resistance.

Aplicación

Owing to its high polarity, wettability by organic solvents, and relatively high ionic conductivity, PVDF-HFP is widely used as a polymer matrix to prepare gel polymer electrolytes for energy storage applications. For example, it can be used to enhance the performance of flexible solid-state supercapacitors.

It can be used to prepare superhydrophobic polymer nanocomposites. For example, PVDF-HFP- SiO2 composite can be used to enhance the thermochromism in regioregular poly(3-hexylthiophene), P3HT.

It can also be used to prepare lead-free piezoelectric flexible polymer composites for nanogenerators. PVDF-HFP can be preferred over other polymer matrices because of its higher solubility, greater free volume, and better mechanical strength.
Wire and cable coatings, flexible and corrosion-resistant tubing, and liners for pipes and tanks.

Características y beneficios

Excellent thermal stability, chemical and abrasion resistance, impervious to UV degradation, self-extinguishing and retains properties on aging. Improved flexibility at subzero temperatures, stress crack resistance and elongation to break over poly(vinylidene fluoride).

Forma física

Crystalline, thermoplastic copolymer.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
MKCX3545
MKCX2105
0000391331
0000303676
0000391331

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Questions

1–2 of 2 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

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