Everything You Need To Know About PTFE Lining
Posted by barkha on November 13th, 2020
PTFE (Polytetrafluoroethylene), a fluorocarbon solid, is composed of carbon and fluorine. It has a high molecular weight. This synthetic fluoropolymer of tetrafluoroethylene is hydrophobic, i.e., water can\'t wet PTFE. The popular brand name of PTFE is Teflon by DuPont Co. Syncolon is another popular brand name of PTFE by Synco Chemical Corporation. We are one of the best PTFE Lining Manufacturers in India.
What Are the Features Of PTFE Lining?
• It is Inert to all chemicals
• Has high heat resistance
• Cannot be thermoformed
• It is not hygroscopic
• It has maximum resistance against solvents
• It is coefficient to the minimum friction
• It has self-lubricating properties and optimum resistance to aging
• It has flexibility
What Are The Chemical Features Of PTFE Lining?
PTFE is chemical-resistant. It reacts with only alkali metals, elemental fluorine, and chlorotrifluorides at high temperature and high pressure. PTFE is non-reactant to all solvents up to 300 degrees temperature. At the crystalline melting point, some fluorinated oils allow it to swell and melt.
What Are The Thermal Properties Of PTFE Lining?
PTFE is also known as a thermally insulating material because PTFE has the property of low heat transmission. This means it has flame retardant properties and is stable even at 260 degrees.
What Are The Electrical Properties Of PTFE Lining?
PTFE is characterized by optimal dielectric properties at a wide range of frequencies. These properties are preserved even when it is exposed to weather agents because PTFE Lining cannot absorb water. The temperature doesn\'t affect electrical capacity. The temperature does not generate carbon residues but only vapours. The other electrical properties are PTFE are dielectric constant, volume resistant, surface resistant, power factor, etc.
Application & Uses
• PTFE is used in pyrotechnic compositions
• Used as infrared decoy flares
• Used as igniters for solid-fuel rocket propellants
• Used in chemical, electrical, architectural, automotive, and construction industries.
• Used as a fabric protector to keep away stains from school-wear
• Used in ski-bindings as a non-mechanical anti-friction device.
Techniques To Process PTFE
• Its high melting viscosity and high melting temperature make processing difficult by extrusion and injection molding.
• Shintering , extrusion, machining, molding, hot stamping
• Paste extrusion is the process by which PTFE is blended with a hydrocarbon
• Dispersion cast for fiber spinning and thin films.
• The operating temperature is -270 degrees Celcius to 260 degrees Celcius.
Limitation Of PTFE
PTFE has limitations in its use. It has low radiation resistance. It is vulnerable to toxic fumes. It is corrosive. PTFE is sensitive to creep and abrasion. It has dimensional variation around the glass transition temperature.
Conclusion
We are the leading Pvdf linings manufacturer. Important applications of PTFE linings are liners for pipe and chemical processing equipment. Additionally, roller covers, cable applications, aircraft wire, fire alarm cable, and plenum cable are its other uses. PTFE is filled with additives namely carbon graphite, glass fiber, bronze ceramic powder, molybdenum disulfide, etc. PTFE experiences an increase in compressive strength, an increase in wear resistance, and an increase in hardness depending on the type of filter used. It also reduces the thermal expansion coefficient. It has high transparency.
