Characteristic of Polytetra-flouro-ethylene - Basic Mechanical Engineering

Q.  Which of the following is a characteristic of Polytetra-flouro-ethylene?

- Published on 02 Sep 15

a. High coefficient of friction
b. Tough at high temperature
c. Resistance to chemical attack
d. All of the above

ANSWER: Resistance to chemical attack

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    Discussion

  • Sravanthi   -Posted on 06 Nov 15
    - Thermoplasts: On application of heat and pressure these thermoplasts do not undergo chemical change.

    - Celluloid, Polyamide, Polyethylene, Teflon, etc different types of thermoplastics.

    - Polytetra-flouro-ethylene is also called as Teflon. Teflon has low coefficient of friction. They are tough at low temperatures and are resistant to chemical attack.

    - Teflon is the trade name for Polytetra-flouro-ethylene. These are generally used in gaskets, packings, sealing, electrical insulation, non-stick surfacing, etc.

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