Polytetrafluoroethene (commonly known as "non-stick coating" or "easy non-stick material"); It is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is very low, so it can be used for lubrication, but also become an ideal coating for the inner layer of non-sticky wok and water pipe.

English alias :TETRAFLUOROETHYLENE OLIGOMER; [1]TETRAFLUOROETHYLENE RESIN; TEFLON; TEFLON 7A; TEFLON(TM) 30B; TEFLON(TM) 6; TEFLON(TM) 7A; PTFE

Ptfe is called "plastics king", the father of fluorine resin Roy Planck, in 1936 began the study in the United States dupont, substitute of freon, they collected some tetrafluoroethylene stored in cylinders, ready for the next day on to the next step of the experiment, but when the second day after open the cylinder pressure reducing valve, but no gas overflow, they thought it was flat, But when the cylinder was weighed, it was found that the cylinder had not lost weight. They sawed through the cylinder and found a large amount of white powder, which was Teflon.

Their research found that Teflon properties are good enough to be used in anti-fusion gaskets for atomic bombs, artillery shells, etc., so the U.S. military kept the technology secret during World War II. Until the end of World War II, it was decrypted and industrialized production of PTFE was realized in 1946.

Chinese product names "Teflon", "Teflon" (Teflon), "Teflon", "Teflon", "Teflon", "Teflon", etc. It is a polymer compound formed by the polymerization of tetrapluorylene, its structure is simple formula -[-CF2-CF2-] N -, has excellent chemical stability and corrosion resistance, and is one of the best corrosion resistance materials in the world today. In addition to molten metal sodium and liquid fluorine, it can resist all other chemicals, and it does not change when boiling in king water. It is widely used in various occasions where acid and alkali resistance and organic solvents are required. It has sealing, high lubrication non-stick, electrical insulation and good anti-aging ability, excellent temperature resistance (can work at the temperature of +250℃ to -180℃ for a long time). Teflon itself is not toxic to humans.

The operating temperature is -190 ~ 250℃, allowing sudden cooling and sudden heating, or alternating cold and hot operation.

Pressure -0.1 ~ 6.4mpa (Full vacuum to 64kgf/cm2)

Its production has solved many problems in chemical, petroleum, pharmaceutical and other fields. Teflon seals, gaskets, gaskets. Ptfe seals, gaskets and gaskets are molded by suspension polymer PTFE resin. Compared with other plastics, PTFE has the characteristics of chemical corrosion resistance, and it has been widely used as a sealing material and filling material.

Used as engineering plastic, can be made into TEflon pipe, rod, tape, plate, film, etc. It is generally used in corrosion-resistant pipelines, containers, pumps, valves and radar, high-frequency communication equipment and radio equipment with high performance requirements. Dispersing liquid can be used as insulation impregnating liquid of various materials and anti-corrosion coating of metal, glass and pottery surface. All kinds of TEflon rings, TEflon gaskets, teflon packing are widely used in all kinds of anti-corrosion pipe flange seals. In addition, it can also be used for silk, polytetrafluoroethylene fiber - fluorine (foreign products named Teflon).

At present, all kinds of plastic king products have played a pivotal role in chemical, machinery, electronics, electrical appliances, military, aerospace, environmental protection and Bridges and other national economic fields.

PTFE (polytetrafluorethylene) conditions of use industry chemical, petrochemical, oil refining, chlor-alkali, acid, phosphate fertilizer, pharmaceutical, pesticide, chemical fiber, dyeing, coking, gas, organic synthesis, nonferrous smelting, iron and steel, atomic energy and polymer filter materials, high purity product production (such as ion membrane electrolysis), viscous material transportation and operation, High hygiene requirements of food, beverage and other processing and production departments.

CAS No. : 9002-84-0

EINECS no. : 204-126-9

Fractional formula: (C2F4) N, fractional weight: 100.015612, melting point: 327℃, boiling point: 400℃, refractive index: 1.35

Using the advantages

High temperature resistance - working temperature of 250℃.

Low temperature resistance -- good mechanical toughness; Even when the temperature drops to -196 ° C, 5% elongation can be maintained.

Corrosion resistance - inert to most chemicals and solvents, strong acid and alkali resistance, water and a variety of organic solvents.

Weather resistance - has the best aging life in plastics.

High lubrication - is the lowest friction coefficient of solid materials.

Non-adhesion - is the minimum surface tension of a solid material that does not adhere to any substance.

Non-toxic - physiologically inert, as artificial blood vessels and organs implanted into the body for a long time without adverse reactions.

Polytetrafluoroethylene relative molecular mass is large, low hundreds of thousands, high up to more than 10 million

, generally in the millions (polymerization degree in the order of 104, while polyethylene only in 103). Generally, the crystallinity is 90 ~ 95%, and the melting temperature is 327 ~ 342 ° C. The CF2 units in the teflon molecule are arranged in a zigzag shape. Since the fluorine atom radius is slightly larger than that of hydrogen, the adjacent CF2 units cannot be completely cross-oriented according to the trans, but form a helical twisted chain, and the fluorine atoms almost cover the surface of the entire polymer chain. This molecular structure explains the various properties of Teflon. When the temperature is lower than 19℃, 13/6 helix is formed. A phase transition occurs at 19 ° C and the molecule is slightly unwound to form a 15/7 helix.

Specification of the plate: 0.2-100*600/1000*600/1000

Bar specifications: 6-300*200/1000

Guangzhou Yayan Plastic Products Co., LTD. Spot supply: PEEK board/rod, PPS board/rod, PVDF board/rod, PTFE board/rod, PSU board/rod, PEI board/rod, PI board/rod, PAI board/rod, PPO board / bar, PBT board/bar, CPVC board/bar, UPE board/bar, PETP board/bar, PC board/bar, POM board/bar, ABS board/bar, PMMA board/bar, PP board/bar, PE board / bar, imported PU board/bar, German PES board/bar, domestic PVC board/bar, Swiss engineering PBI board/bar, German PA nylon series board/bar/piece, MC nylon series board. Insulation materials: Taiwan red, black electric board, cold stamping board, phenolic laminated cloth bar board, heat insulation board, epoxy glass fiber bar board, epoxy board (FR-4) asbestos board, etc. Anti-static products: anti-static POM board/bar, anti-static organic board, anti-static PC board. Anti static PVC board/bar, anti static nylon board/bar synthetic SLATE and so on.

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