The paint is a material that can be applied to the surface of the object by different construction processes to form a solid film with strong adhesion, a certain strength, and continuousness. The film thus formed is called a coating film, also called a paint film or a coating. Here is a non-stick coating - Teflon coating . The product of this material is generally referred to as "non-stick coating"; it is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material has the characteristics of resistance to acids and alkalis, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its low coefficient of friction, so it can be used for lubrication, and it has become the ideal coating for non-stick pots and inner layers of water pipes. Let's take a look at Xiaobian.
First, what is Teflon coating?
The Teflon full name Teflon was discovered in 1938 by the chemist Dr. Roy J. Plunkett in the DuPont Jackson Laboratory in New Jersey, USA [1] : When he tried to make new When the chlorofluorocarbon refrigerant is used, tetrafluoroethylene is polymerized in a high-pressure storage vessel (iron on the inner wall of the vessel serves as a catalyst for polymerization). DuPont obtained its patent in 1941 and registered its trademark with the name "Teflon" in 1944. Subsequently, DuPont developed a series of products in addition to Teflon® PTFE resin, including Teflon; AF (amorphous fluoropolymer), Teflon; FEP (fluorinated ethylene propylene resin), Teflon; FFR (fluoropolymer) Foam resin), Teflon; NXT (fluoropolymer resin), Teflon; PFA (perfluoroalkoxy resin) and the like.
In 1954, the French engineer Marc Gregoire's wife, Colette, whimpered and thought that the non-stick material Teflon used by her husband to apply to the fishing line to prevent knots could be used. In the frying pan, the effect must be good. The "nonstick pan" that saved countless modern housewives was born.
PTFE, English abbreviation for PTFE, (commonly known as "plastic king"), in China, because of the pronunciation, "Teflon" this brand is also known as Teflon, Teflon, Teflon, special Fulong, Teflon and so on are all transliterations of Teflon. The product of this material is generally referred to as "non-stick coating"; it is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material has the characteristics of resistance to acids and alkalis, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its low coefficient of friction, so it can be used for lubrication, and it has become the ideal coating for non-stick pots and inner layers of water pipes.
Teflon coating is a kind of fluorocarbon coating, which is produced by DuPont, USA. It uses fluorine-containing resin PTFE, PFA, FEP and ETFE as the main functional raw materials to synthesize various excellent formulas to meet the requirements of all walks of life.
Polytetrafluoroethylene English full name is Polytetrafluoroetylene, referred to as Teflon, PTFE, F4 and so on. Polytetrafluoroethene, commonly referred to as "non-stick coating" or "easy-to-clean material"; is a synthetic polymeric material that uses fluorine to replace all hydrogen atoms in polyethylene. This material has the characteristics of resistance to acids and alkalis, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its low coefficient of friction, so it can be used as a lubricating effect, but also become the ideal coating for the inner layer of easy cleaning and water pipes.
Second, what are the benefits of Teflon coating?
The surface of the substrate treated with Teflon coating can have a variety of superior functions at the same time:
1. Non-sticky: Almost all substances do not adhere to the Teflon coating. A very thin coating can also show good non-stick properties.
2, high and low temperature resistance: Teflon coating can withstand 320 degrees in a short time, generally -200 degrees to 260 degrees can be used continuously, with significant thermal stability, it can work at freezing temperature Embrittlement, not melting at high temperatures
3, sliding: PTFE coating has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05-0.15.
4, moisture resistance: Teflon coating surface does not touch water and oil, the production process is also not easy to dip solution, such as a small amount of dirt, a simple wipe can be removed. Shorter downtime saves hours and improves work efficiency.
5, wear resistance: Under high load, with excellent wear resistance. Under certain loads, it has the dual advantages of wear resistance and non-adhesion.
6, corrosion resistance: PTFE is almost free of chemicals, able to withstand in addition to molten alkali metals, fluorinated media, and all high-temperature than 300 °C (including aqua regia), strong oxidants, reduction The role of agents and various organic solvents can protect parts from any kind of chemical corrosion.
Third, why should be coated with Teflon paint?
There are many advantages, the following are a few points:
(1) Ensure complete demoulding and reduce scrap rate in a large amount;
(2) Easy demoulding, reducing labor intensity;
(3) No mold release agent is used to reduce cost and environmental pollution and prevent rubber vulcanization and adhesion;
Fourth, application areas
Polytetrafluoroethylene can be extruded or extruded. When used in high-temperature wires, it can also be made into thin film and then cut into shaft-mounted PTFE tapes. It is used to produce high-frequency cables and is directly made into aqueous dispersions. Can be used to coat, impregnate, or make fibers.
PTFE is widely used in high temperature, low temperature, and resistance in atomic energy, defense, aerospace, electronics, electrical, chemical, machinery, instrumentation, instrumentation, construction, textile, metal surface treatment, pharmaceutical, medical, food, metallurgical, and other industries. Corrosion materials, insulating materials, anti-stick coatings, etc., make it an irreplaceable product.
PTFE has outstanding excellent comprehensive performance, high temperature resistance, corrosion resistance, non-stick, self-lubricating, excellent dielectric properties, and a low coefficient of friction. Used as engineering plastics, can be made of PTFE tube, rods, tapes, plates, films, etc. It is generally applied to corrosion-resistant pipes, vessels, pumps, valves and radars, high-frequency communication equipment, and radio equipment that require high performance. Adding any filler that can withstand the sintering temperature of Teflon in Teflon, its mechanical properties can be greatly improved. At the same time, maintain other excellent properties of PTFE. Filled varieties are glass fiber, metal, metal oxides, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL, etc., wear resistance, limit PV value can be increased by 1000 times. Painting on the surface of bullet bullets can increase bullet penetration, enabling bullets to shoot through body armor.
Editor's summary: The Teflon coating was introduced here. Nowadays there are many Teflon paints on the market, so this article is for everyone to know more about Teflon coating and hope to everyone. Help. If you want to know more related information, you can pay attention to this website information.
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