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469629

Sigma-Aldrich

Poly[4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene]

dioxole 87 mol %

Sinonimo/i:

PTFE AF, PTFE AF 2400 PTFE AF

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About This Item

Numero CAS:
37626-13-4
Numero MDL:
MFCD00803821
Codice UNSPSC:
12352103
NACRES:
NA.23

Descrizione

contact angle 105 ° with water
critical surface energy 15.6 dyn/cm

Composizione

dioxole, 87 mol %

Costante dielettrica

1.904, 1 MHz (ASTM D 150)

Indice di rifrazione

n20/D 1.29

Solubilità

fluorinated solvents such as perfluoromethylcyclohexane, perfluorobenzene, and perfluorodecalin: soluble

Densità

1.67 g/mL at 25 °C

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Descrizione generale

Poly(4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene)(AF2400) is a fluorinated polymer that formed by copolymerization of 4,5-difluoro-2,2-(trifluoromethyl)-1,3-dioxole(PDD) and tetrafluoroethylene(TFE). It has a relatively high glass transition temperature(Tg) and optical transparency which allows it be a photo-stable polymer that can be used for a wide range of coating application in electronic and electrochemical industry.
A tunable, polymeric, photonic material.

Applicazioni

AF2400 dissolved in supercritical CO2 as a solvent can be used as an activated layer that forms an electrode for fuel cell applications. It may be used in the fabrication of organic nanofiltration membrane with polytetrafluoroethylene(PTFE) that can be used in the extraction of hexane from crude mixture of soybean oil. Nanocomposites of silver nanoparticles(AgNPs) may be formed by incorporating AF2400 via vapour phase co-deposition process that can be used in surface enhanced raman spectroscopy sensors and color filters.
Optoelectronic devices for optical clarity, low-refractive index coating for optical devices, protective coating for chemical resistance, release coating, and sight window for harsh chemical environments.

Caratteristiche e vantaggi

High gas permeability, high compressibility, good creep resistance, low thermal conductivity, transparent to microwaves and the lowest dielectric constant of any known fluoropolymer.

Stato fisico

Amorphous copolymer.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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Mechanism of 157 nm photodegradation of poly (4, 5-difluoro-2, 2-bis (trifluoromethyl)-1, 3-dioxole-co-tetrafluoroethylene)(teflon AF).
Blakey I, et al.
Macromolecules, 40(25), 8954-8961 (2007)
AF2400/PTFE composite membrane for hexane recovery during vegetable oil production.
Li X, et al.
Separation and Purification Technology, 181(25), 223-229 (2017)
Properties of thin Teflon AF 2400 coatings deposited onto carbon fabric from solutions in supercritical carbon dioxide.
Kolomytkin DO, et al.
Polymer Science, Series A, 59(1), 42-52 (2017)
Active layer materials coated with Teflon AF nano-films deposited from solutions in supercritical CO2 for fuel cell applications.
Elmanovich IV, et al.
International Journal of Hydrogen Energy, 38(25), 10592-10601 (2013)
Electrical conductivity of thin-film composites containing silver nanoparticles embedded in a dielectric fluoropolymer matrix.
Wei H and Eilers H, et al.
Thin Solid Films, 517(2), 575-581 (2008)

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