PTFE

Polytetrafluoroethylene (PTFE) is a helical linear polymer consisting of a carbon and fluorine and carbon chain tightly surrounded by fluorine atoms acting as a protective layer. As a highly crystalline, strong, non-flammable synthetic resin, PTFE has many special properties that have attracted the attention of many researchers and has been successfully used in many fields.

Alfa Chemistry is a leading global supplier of PTFE. We are committed to providing you with different specifications of high-quality PTFE to meet your scientific or industrial applications. With our extensive product portfolio, you can find the perfect PTFE to drive your research forward.

How to Make PTFE

PTFE is made by the free-radical polymerization technique in an aqueous media using the polymerization of tetrafluoroethylene (TFE). This process involves subjecting TFE to heat and pressure, causing the monomers to undergo chain reactions, resulting in the formation of long molecular chains. The tightly bound fluorine atoms surround the carbon backbone, creating a strong and chemically stable material.

Performance Characteristics

PTFE is a unique polymer with many performance characteristics that make it ideal for a variety of applications. These performance characteristics include, but are not limited to the following.

• Heat Resistance: PTFE has excellent heat resistance with a melting point of approximately 327 °C (620 °F). This property makes it suitable for applications exposed to high heat.
• Chemical Resistance: PTFE has excellent chemical resistance, which makes it virtually impervious to most chemicals, including acids, bases and organic solvents. This exceptional chemical resistance allows it to be used in a wide range of corrosive environments.
• Dielectric Properties: PTFE has good electrical resistance and dielectric strength, which means it is an excellent electrical insulator. It can withstand high voltages without conducting electricity.
• Non-Stick and Low Friction Properties: PTFE's waxy surface is easy to clean and prevents materials from sticking to it. In addition, PTFE has a very low coefficient of friction (its dynamic coefficient of friction is 0.04), which is one of the lowest friction coefficients of all solid materials.

Applications

From household cookware to automotive parts, PTFE's unique properties have made it a ubiquitous material in modern society. Its main applications are described below.

• Cookware: The non-stick and non-toxic nature of PTFE at high operating temperatures makes it ideal for making non-stick cookware series.
• Medical: PTFE's biocompatibility and chemical inertness make it valuable in medical devices, such as catheters, surgical implants, and drug delivery systems.
• Electrical and Electronics: The electrically insulating properties of PTFE make it an ideal choice for high frequency and high voltage applications, including connectors, insulators and microwave components.
• Storage and Transportation: PTFE's high chemical inertness makes it widely used as a container for storing a variety of corrosive chemicals. In addition, PTFE can be used as liners and tubers for transporting corrosive chemicals.
• Automotive: PTFE's low friction properties make it suitable for automotive parts, including piston rings, seals, bearings and gaskets. This helps reduce wear and improve fuel efficiency.

Our Products

Alfa Chemistry provides customers with PTFE in different material forms. The specific products are as follows:

PTFE Sheets

PTFE Rods

PTFE Powders

PTFE Balls