Extruded polystyrene (XPS) insulation is a rigid foam insulation commonly used in the construction industry to improve building energy efficiency. It is made of polystyrene resin and other additives ...
Polystyrene—most familiarly produced as foams, including Styrofoam—has given the world cheap, lightweight insulation and containers for taking food to go. But the material biodegrades so slowly that ...
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