Teflon is a registered trademark for a series of fluorinated polymer products developed by DuPont in the United States. Its core and most well-known component is polytetrafluoroethylene (PTFE), also known as the "plastic king".

In addition to PTFE, the Teflon brand also includes other high-performance fluoropolymers such as FEP (Fluorinated Ethylene Propylene Resin), PFA (Perfluoroalkoxy Resin), etc. The main types and characteristics of Tefulong:

PTFE， The maximum working temperature is about 260 ° C-300 ° C, with extremely low friction coefficient, excellent chemical inertness, and almost no adhesion of any substance. Mainly used for non stick coating, chemical equipment lining, seals, bearings, medical materials (such as artificial blood vessels).

FEP， The maximum operating temperature is about 200 ° C, and it can melt and flow to form a non porous film during baking. Mainly used for insulation layers and pipes of wires and cables.

PFA， The continuous use temperature is about 260 ° C, which has higher rigidity and toughness than FEP, and can also form a non porous film. Suitable for anti sticking and chemical resistance fields under high temperature conditions, such as chemical equipment.

Teflon materials, especially PTFE, combine many outstanding properties:

Excellent non stick: Almost all substances cannot adhere to its surface, which is the foundation of its use as a non stick pan coating.

Wide temperature resistance: capable of long-term stable operation within the temperature range of -200 ° C to 260 ° C, and short-term high temperature resistance of 300 ° C.

Extremely high chemical inertness: exhibiting excellent corrosion resistance to the vast majority of strong acids, bases, oxidants, and organic solvents, including aqua regia.

Extremely low friction coefficient: The friction coefficient is extremely low and has good self-lubricating properties.

Excellent electrical insulation: non stick, hydrophobic, oleophobic, and has excellent electrical insulation performance.

Safety and usage precautions

Material itself: Tefulong material itself is non-toxic and physiologically inert, and normal use is safe.

Cooking precautions: It is important to avoid high-temperature air burning (usually exceeding 260 ° C), as it may cause the polymer coating to decompose and release harmful smoke to health.

 The oil temperature for daily cooking generally does not exceed 250 ° C, so normal use is safe.

Historical issue: PFOA (ammonium perfluorooctanoate), a processing aid used in the production of PTFE in the past, has attracted much attention due to its environmental persistence and potential health risks.

 However, modern technology has largely eliminated the use of PFOA.

In summary, Teflon is a trademark name that represents a class of high-performance fluoroplastic materials, among which the "Plastic King" PTFE is the most famous.

 Its non stick, temperature resistant, corrosion-resistant, self-lubricating and other characteristics make it widely used from kitchens to factories and even hospitals.

 As long as you purchase qualified products and use them correctly (especially avoiding high-temperature burning), you can safely enjoy the convenience they bring.

 I hope this information can help you fully understand materials like Tefulong.