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Which of the following thermoplastic is corrosion-resistant to all environments up to 550°F?

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Which of the following thermoplastic is corrosion-resistant to all environments up to 550°F?

(a) Polyvinyl chloride

(b) Polystyrene

(c) Teflon

(d) Polyethylene

This question was posed to me during an interview for a job.

My query is from Materials topic in division Materials of Corrosion Engineering

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Correct answer is (c) Teflon

Best explanation: Teflon is one of the fluorocarbons which is regarded as noble metals of plastics. It is corrosion-resistant to practically all environments up to 550°F. The monomer of Teflon is denoted as CF2=CF2.

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