Science, asked by ayu66, 1 year ago

information about teflon ,methods of preparation,properties and uses

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Answered by hemamichael98

Answer:The best-known brand name of PTFE-based formulas is Teflon by Chemours. ... PTFE is used as a non-stick coating for pans and other cookware. It is nonreactive, partly because of the strength of carbon–fluorine bonds, and so it is often used in containers and pipework for reactive and corrosive chemicals.

Chemical formula: (C2F4)n

Abbreviations: PTFE

Melting point: 600 K, 327 °C

Explanation:Scrub gases are employed to remove the HCl, then the tetrafluoroethylene is distilled. Synthesis of teflon- Poly(tetrafluoroethylene) (teflon) is prepared via suspension polymerization. ... CF2 = CF2 is polymerized under pressure in stainless steel autoclaves with free radical initiators such as ammonium persulfate

Properties:::

Other useful PTFE properties are its high flexural strength, even in low temperatures, high electrical resistance and dielectric strength, resistance to water (owing to fluorine's high electronegativity), and low coefficient of friction. PTFE's density is also very high

ayu66: And could u plzz tell about the explanation,preparation and uses of( bakelite , PVC and melamine )

hemamichael98: Bakelite due to its high resistance to electricity and heat is used in automotive components and industrial applications. Due to its excellent insulating properties it is used for making switches and other electrical appliances. It is also used to make various kitchenware products like frying pans etc.

hemamichael98: . Melamine resins are used for the manufacture of many products, including kitchenware, laminates, overlay materials, particleboards, and floor tiles. Melamine and its salts are also used as fire-retardant additives in paints, plastics, and paper. Melamine foam is a special form of melamine resin.

hemamichael98: PVC is commonly used as the insulation on electrical cables such as teck; PVC used for this purpose needs to be plasticized. Flexible PVC coated wire and cable for electrical use has traditionally been stabilised with lead, but these are being replaced with calcium-based systems.

hemamichael98: Hope it helps...

ayu66: ya exactly ..it helped me a lot ..Thnq uhh

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