How does polypropylene resist UV damage compared to PVC?

Polypropylene and PVC are widely used materials in various industries, but their resistance to UV damage differs significantly. Polypropylene is inherently more resistant to UV radiation due to its chemical structure, which includes carbon-hydrogen bonds that are less susceptible to degradation. Additionally, polypropylene can be further enhanced with UV stabilizers, making it highly durable in outdoor applications.

On the other hand, PVC is more prone to UV damage because it contains chlorine atoms, which break down under prolonged UV exposure, leading to discoloration, brittleness, and reduced strength. While PVC can also be treated with UV inhibitors, it generally requires more additives to achieve comparable UV resistance to polypropylene.

In summary, polypropylene offers superior UV resistance compared to PVC, making it a better choice for applications exposed to sunlight and outdoor conditions. Its natural durability and ability to be enhanced with stabilizers ensure long-lasting performance, whereas PVC may require additional treatments to withstand similar environments.