How does polyethylene compare to polypropylene in terms of cost?

When comparing polyethylene (PE) and polypropylene (PP) in terms of cost, several factors come into play. Polyethylene is generally less expensive than polypropylene due to its simpler production process and widespread availability. PE is commonly used in packaging, plastic bags, and containers, making it a cost-effective choice for high-volume applications. On the other hand, polypropylene, while slightly more expensive, offers superior heat resistance and durability, making it ideal for automotive parts, medical devices, and reusable containers.

The cost difference between the two materials also depends on market demand, raw material prices, and production scale. For projects requiring high strength and heat resistance, the additional cost of polypropylene may be justified. However, for applications where cost efficiency is paramount, polyethylene remains the more economical option. Ultimately, the choice between polyethylene and polypropylene should consider both performance requirements and budget constraints.