Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of
tetrafluoroethylene that finds numerous applications. PTFE is most
well known by the DuPont brand name Teflon.
Polytetrafluoroethylene (PTFE) is a versatile polymer used in a
broad range of medical, industrial, and high technology
- PTFE is a
fluorocarbon solid, as it is a high-molecular-weight compound
consisting wholly of carbon and fluorine.
- PTFE is
hydrophobic: neither water nor water-containing substances wet PTFE,
as fluorocarbons demonstrate mitigated London dispersion
forces due to the high electro- negativity of fluorine. PTFE has one
of the lowest coefficients of friction against any solid.
- PTFE is used as a
non-stick coating for pans and other cookware. It is very
non-reactive, partly because of the strength of carbon–fluorine
bonds, and so it is often used in containers and pipework for
reactive and corrosive chemicals. Where used as a lubricant, PTFE
reduces friction, wear, and energy consumption of machinery.
- PTFE is commonly
believed that teflon, like velcro, is a spin-off product from the
NASA space projects.
- PTFE is a
thermoplastic polymer, which is a white solid at room temperature,
with a density of about 2.2 g/cm3.
- PTFE has
excellent dielectric properties. This is especially true at high
radio frequencies, making it suitable for use as an
insulator in cables and connector assemblies and as a material for
printed circuit boards used at microwave frequencies.
- Powdered PTFE is
used in pyrotechnic compositions as oxidizers together with powdered
metals such as aluminium and magnesium.
- PTFE is also used
to coat certain types of hardened, armor-piercing bullets, so as to
prevent the increased wear on the firearm's rifling that would
result from the harder projectile, however it is not the PTFE itself
that gives the bullet its
- PTFE is also
widely used as a thread seal tape in plumbing applications, largely
replacing paste thread dope.
- PTFE grafts can
be used to bypass stenotic arteries in peripheral vascular disease,
if a suitable autologous vein graft is not available.
- PTFE membrane
filters are among the most efficient used in industrial air
- PTFE can be used
to prevent insects climbing up surfaces painted with the material.
- PTFE's coefficient of friction is
extremely low and it shows the effect of self lubrication with
constant mechanical properties which makes it particularly suitable
for bearings, joints, O-rings, stirring bars, hazardous materials
bottle pouers, syringes, crucubles, evaporating dishes etc.
- Polytetrafluoroethylene or PTFE
is a one of the major components in the fabric used to make safety
clothes for those involved in heavy industries.
Polytetrafluoroethylene (PTFE) is the largest selling fluoropolymer
worldwide, accounting for about 60% of the demand for fluoropolymers.
- China is the
largest producer and consumer of PTFE in the world. The region, in
recent years, increased the production capacity of PTFE, by
aggressively debottle- necking existing plants and adding new
- Electrical &
Electronics segment represents the fastest growing end-use market
for PTFE, recording a CAGR of more than 8.0% over the analysis
period. PTFE finds wide use in wire and cable applications due to
properties such as chemical inertness and high-temperature
- The Report conclude use of the
polytetrafluoroethylene surgical membrane for pericardial closure in
children is a safe procedure that helps prevent complications at
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