Teflon is an example of:

Options

A. Fibres
B. Elastomer
C. Thermoplastic
D. Thermosetting polymer

Answer

To determine what Teflon is an example of, we can analyze the information provided step by step.

### Step-by-Step Solution:

1. **Identify Teflon**: Teflon is a well-known polymer used for its non-stick properties, primarily in cookware.

2. **Understand the Composition**: Teflon is chemically known as polytetrafluoroethylene (PTFE). The monomer unit that makes up Teflon is tetrafluoroethylene (C2F4), which has a double bond between the carbon atoms.

3. **Polymerization Process**: The polymerization of tetrafluoroethylene involves breaking the double bond in the monomer. When many tetrafluoroethylene molecules (N number) undergo this process, they link together to form long chains, resulting in the polymer Teflon.

4. **Properties of Teflon**: Teflon exhibits properties characteristic of thermo-setting polymers. When heated, it becomes harder and does not soften upon cooling, indicating that it undergoes irreversible hardening.

5. **Classification of Polymers**: Based on its properties, Teflon does not fall under the categories of fibers or elastomers. Instead, it is classified as a thermo-setting polymer because it cannot be remolded or reshaped after it has been set.

6. **Conclusion**: Therefore, the correct answer to the question is that Teflon is an example of a thermo-setting polymer.

### Final Answer:
Teflon is an example of a thermo-setting polymer.

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