The material used as coating material for non-stick pans is :

Options

A. polystyrene
B. terylene
C. teflon
D. PVC

Explanation

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the material used as a coating for non-stick pans. This implies we are looking for a specific polymer that has non-stick properties.

2. **Analyzing the Options**: The options provided are:
- Polystyrene
- Perylene
- Teflon
- PVC (Polyvinyl Chloride)

3. **Evaluating Each Option**:
- **Polystyrene**: This polymer is mainly used as an insulator and in the manufacturing of electronic devices and packaging materials. It does not have non-stick properties.
- **Perylene**: This is a polycyclic aromatic hydrocarbon and is not commonly used in cookware. It does not have the properties needed for non-stick surfaces.
- **Teflon**: This is a well-known polymer used specifically for its non-stick properties. It is used in the coating of cookware because it is resistant to heat and does not react with food.
- **PVC (Polyvinyl Chloride)**: This polymer is primarily used for making pipes, plastic bodies, and toys. It does not have the non-stick properties required for cookware.

4. **Conclusion**: After evaluating all the options, Teflon is the only material that is specifically designed for non-stick surfaces in cookware. It has properties that prevent food from sticking, making it ideal for non-stick pans.

5. **Final Answer**: The material used as a coating for non-stick pans is **Teflon**.