How does the weight of polyethylene compare to PVC?
Polyethylene and PVC (polyvinyl chloride) are two widely used plastics with distinct properties, including differences in weight. Polyethylene is generally lighter than PVC due to its lower density. The density of polyethylene typically ranges from 0.91 to 0.96 g/cm³, depending on its type (e.g., LDPE or HDPE). In contrast, PVC has a higher density, averaging around 1.3 to 1.45 g/cm³. This difference in density makes polyethylene a preferred choice for applications where weight reduction is critical, such as in packaging and lightweight containers. On the other hand, PVC's higher density contributes to its durability and rigidity, making it suitable for construction materials like pipes and window frames. Understanding these weight differences helps in selecting the right material for specific applications.
