Here's why:
* Thermal Conductivity: Thermocol has very low thermal conductivity, meaning it's a poor conductor of heat. This means heat transfer through the material is slow.
* Trapped Air: Thermocol contains many tiny air pockets that act as insulators. Air itself is a poor conductor of heat.
* Protection from Heat Transfer: This combination of low conductivity and trapped air helps prevent heat transfer from the outside to the inside (or vice versa).
How it's used:
* Food Packaging: Thermocol containers help keep food hot or cold for longer periods.
* Building Insulation: It's used in walls and roofs to reduce heat loss in winter and heat gain in summer.
* Cold Storage: Thermocol is used in cold storage units to keep the temperature stable.
Important Note:
While thermocol is useful for insulation, it's not a direct cooling agent. It prevents heat transfer, which helps maintain a desired temperature, but it doesn't actively cool things down.
