How does the weight of polypropylene compare to PVC?
Polypropylene and PVC are two widely used plastics, but they differ significantly in weight due to their distinct densities. Polypropylene has a density of approximately 0.9 g/cm³, making it one of the lightest plastics available. In contrast, PVC has a higher density, ranging from 1.3 to 1.45 g/cm³, depending on whether it is rigid or flexible. This means PVC is noticeably heavier than polypropylene, which can influence material selection for applications where weight is a critical factor. For instance, polypropylene is often preferred in lightweight packaging and automotive components, while PVC's durability and weight make it suitable for construction materials like pipes and window frames. Understanding these differences helps in choosing the right material for specific needs.
