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Fluorinated ethylene propylene

Fluorinated ethylene propylene

Overview


Fluorinated ethylene propylene, Teflon-FEP, or FEP is a copolymer of hexafluoropropylene
Hexafluoropropylene
Hexafluoropropylene is a compound with the formula C3F6. It is a fluorocarbon alkene in which all of the hydrogen atoms in propylene are replaced by fluorine atoms. It is used as a chemical intermediate....

 and tetrafluoroethylene
Tetrafluoroethylene
Tetrafluoroethylene is a chemical compound with the formula C2F4. It is the simplest alkene fluorocarbon. This gaseous species is used primarily in the industrial preparation of polymers. In organic chemistry, tetrafluoroethylene is a potent...

. It differs from the PTFE (polytetrafluoroethylene
Polytetrafluoroethylene
In chemistry, polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene which finds numerous applications. PTFE is most well known by the DuPont brand name Teflon....

) resins in that it is melt-processible using conventional injection molding and screw extrusion techniques. Fluorinated ethylene propylene was invented by DuPont
DuPont
E. I. du Pont de Nemours and Company , commonly referred to as DuPont or Du Pont, is an American chemical company that was founded in July 1802 as a gunpowder mill by Eleuthère Irénée du Pont. DuPont is currently the world's second largest chemical company in terms of market capitalization and...

 and is sold under the brandname Teflon-FEP. Similar product is available from Daikin with the brand name of Neoflon-FEP.

FEP is very similar in composition to the fluoropolymer
Fluoropolymer
A fluoropolymer is a fluorocarbon based polymer with multiple strong carbon–fluorine bonds. It is characterized by a high resistance to solvents, acids, and bases....

s PTFE (polytetrafluoroethylene)
Polytetrafluoroethylene
In chemistry, polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene which finds numerous applications. PTFE is most well known by the DuPont brand name Teflon....

 and PFA (perfluoroalkoxy polymer resin)
Perfluoroalkoxy
Perfluoroalkoxy, Teflon-PFA, or PFA is a type of fluoropolymer with properties similar to polytetrafluoroethylene . It differs from the PTFE resins in that it is melt-processable using conventional injection molding and screw extrusion techniques.PFA was invented by DuPont and is sold under the...

.
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Encyclopedia
FEP
Density
Density
The density of a material is defined as its mass per unit volume. The symbol of density is ρ .- Formula :Mathematically:where: is the density, is the mass, is the volume....

2150 kg/m3
Kilogram per cubic metre
Kilogram per cubic metre is the SI measure of density and is represented as kg/m3, where kg stands for kilogram and m3 stands for cubic metre...

Flexural modulus
Flexural modulus
The flexural modulus is the ratio of stress to strain in flexural deformation, or the tendency for a material to bend. It is an intensive property....

(E)
586 MPa
Pascal (unit)
The pascal is the SI derived unit of pressure, stress, Young's modulus and tensile strength. It is a measure of force per unit area, defined as one newton per square metre...

Tensile strength
Tensile strength
Tensile strength is indicated by the maxima of a stress-strain curve and, in general, indicates when necking will occur. As it is an intensive property, its value does not depend on the size of the test specimen...

(t)
23 MPa
Pascal (unit)
The pascal is the SI derived unit of pressure, stress, Young's modulus and tensile strength. It is a measure of force per unit area, defined as one newton per square metre...

Elongation @ break 325%
Folding endurance Varies
Notch test
Melting point
Melting point
The melting point of a solid is the temperature range at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point...

260 °C
Celsius
Celsius is a temperature scale that is named after the Swedish astronomer Anders Celsius , who developed a similar temperature scale two years before his death...

Maximum operating
   temperature 204 °C
Celsius
Celsius is a temperature scale that is named after the Swedish astronomer Anders Celsius , who developed a similar temperature scale two years before his death...

Water absorption (ASTM) <0.01 % after 24 hours
Dielectric constant
Dielectric constant
The relative static permittivity of a material under given conditions is a measure of the extent to which it concentrates electrostatic lines of flux. It is the ratio of the amount of stored electrical energy when a potential is applied, relative to the permittivity of a vacuum...

 (Dk)
   at 1MHz
Hertz
The hertz is a unit of frequency. It is defined as the number of complete cycles per second. It is the basic unit of frequency in the International System of Units , and is used worldwide in both general-purpose and scientific contexts...

2.1
Dissipation factor
   at 1MHz
Hertz
The hertz is a unit of frequency. It is defined as the number of complete cycles per second. It is the basic unit of frequency in the International System of Units , and is used worldwide in both general-purpose and scientific contexts...

0.0007
Arc resistance < 300 seconds
Resistivity
Resistivity
Electrical resistivity is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electrical charge...

 at 50% R.H.
Relative humidity
Relative humidity is a term used to describe the amount of water vapor that exists in a gaseous mixture of air and water vapor.- Definition :...

> 1016 Ω
Ohm
The ohm is the SI unit of electrical impedance or, in the direct current case, electrical resistance, named after Georg Simon Ohm.- Definition :...

 m


Fluorinated ethylene propylene, Teflon-FEP, or FEP is a copolymer of hexafluoropropylene
Hexafluoropropylene
Hexafluoropropylene is a compound with the formula C3F6. It is a fluorocarbon alkene in which all of the hydrogen atoms in propylene are replaced by fluorine atoms. It is used as a chemical intermediate....

 and tetrafluoroethylene
Tetrafluoroethylene
Tetrafluoroethylene is a chemical compound with the formula C2F4. It is the simplest alkene fluorocarbon. This gaseous species is used primarily in the industrial preparation of polymers. In organic chemistry, tetrafluoroethylene is a potent...

. It differs from the PTFE (polytetrafluoroethylene
Polytetrafluoroethylene
In chemistry, polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene which finds numerous applications. PTFE is most well known by the DuPont brand name Teflon....

) resins in that it is melt-processible using conventional injection molding and screw extrusion techniques. Fluorinated ethylene propylene was invented by DuPont
DuPont
E. I. du Pont de Nemours and Company , commonly referred to as DuPont or Du Pont, is an American chemical company that was founded in July 1802 as a gunpowder mill by Eleuthère Irénée du Pont. DuPont is currently the world's second largest chemical company in terms of market capitalization and...

 and is sold under the brandname Teflon-FEP. Similar product is available from Daikin with the brand name of Neoflon-FEP.

FEP is very similar in composition to the fluoropolymer
Fluoropolymer
A fluoropolymer is a fluorocarbon based polymer with multiple strong carbon–fluorine bonds. It is characterized by a high resistance to solvents, acids, and bases....

s PTFE (polytetrafluoroethylene)
Polytetrafluoroethylene
In chemistry, polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene which finds numerous applications. PTFE is most well known by the DuPont brand name Teflon....

 and PFA (perfluoroalkoxy polymer resin)
Perfluoroalkoxy
Perfluoroalkoxy, Teflon-PFA, or PFA is a type of fluoropolymer with properties similar to polytetrafluoroethylene . It differs from the PTFE resins in that it is melt-processable using conventional injection molding and screw extrusion techniques.PFA was invented by DuPont and is sold under the...

. FEP and PFA both share PTFE's useful properties of low friction and non-reactivity, but are more easily formable. FEP is softer than PTFE and melts at 260 °C; it is highly transparent and resistant to sunlight.