A brief discussion on the advantages, specifications and application scenarios of PTFE sheets

1. Introduction to PTFE Sheet

PTFE sheet (also called PTFE sheet, Teflon sheet, Teflon sheet) is divided into two types: molded and turned.

Its products are widely used and have extremely superior comprehensive properties: high and low temperature resistance (-80℃-260℃), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, non-adhesion, non-toxic and other excellent characteristics.

Polytetrafluoroethylene (abbreviated as Teflon or PTFE, commonly known as the "King of Plastics".

2. Classification of PTFE Sheet

Molded sheet is made of PTFE resin by molding at room temperature, and then sintered and cooled.

Turning sheet is made of PTFE resin by mold lining method to make blank, sintered, and then turned to make products.

SUNPASS can provide customized services for PTFE sheets of various specifications.

3. Advantages of PTFE Sheet

High temperature resistance - the working temperature is up to 260℃.

Low temperature resistance - good mechanical toughness; even if the temperature drops to -80℃, it can maintain an elongation of 5%.

Corrosion resistance - inert to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents.

Weather resistance - has the best aging life among plastics.

High lubricity - has the lowest friction coefficient among solid materials.

Non-adhesion - has the smallest surface tension among solid materials, does not adhere to any substance, and its mechanical properties have a very small friction coefficient, which is only 1/5 of that of polyethylene, which is an important feature of the perfluorocarbon surface. Because the intermolecular force between fluorine-carbon chains is extremely low, polytetrafluoroethylene has non-stick properties.

Non-toxicity - has physiological inertness, and has no adverse reactions when implanted in the body as artificial blood vessels and organs for a long time.

4. Specifications of PTFE sheets

1. PTFE skived sheets

Thickness: 0.3-10mm

Width: 1000-2000mm

Customized length

2. PTFE molded sheets

Thickness: 12-200mm

Width: 1000-1200mm

Length: 1000-1200mm

5. Application scenarios of PTFE sheets

PTFE sheets are used for gaskets, seals and lubricating materials working in various corrosive media at temperatures of -80℃ to +260℃. They can also be made into electrical insulation parts used at various frequencies.

1. Chemical containers and water tanks made by welding;

2. Anti-sticking materials for machinery, construction, and transportation bridge sliders and guide rails;

3. Making various sealing materials;

4. Add different filling materials to enhance the required performance according to customer requirements.