Styrofoam is a trademarked brand of closed-cell extruded polystyrene foam (XPS), commonly used as insulation and for craft projects. It is lightweight, buoyant, and has excellent thermal insulation properties. Styrofoam is also known for its resistance to moisture, making it a popular choice for packaging materials and insulation in building construction.
The chemical structure of styrofoam consists of long chains of carbon and hydrogen atoms, forming a polymer known as polystyrene. The polymer chains are characterized by their rigid, stable structure, which contributes to the material's insulating properties.
Styrofoam exhibits the following properties:
While styrofoam has many useful properties, it is important to note that it is not biodegradable and can persist in the environment for hundreds of years. The production and disposal of styrofoam can have negative environmental impacts, leading to efforts to find more sustainable alternatives.