How does polyethylene’s resistance to hydrolysis prevent degradation in rain?

Polyethylene, a widely used polymer, exhibits exceptional resistance to hydrolysis, a chemical reaction where water breaks down molecular bonds. This property is crucial in preventing degradation when exposed to rain or moisture. Unlike materials susceptible to hydrolysis, polyethylene's non-polar hydrocarbon structure repels water molecules, minimizing their interaction with the polymer chains. Additionally, its high crystallinity and hydrophobic nature further reduce water absorption, ensuring long-term stability. This resistance makes polyethylene ideal for outdoor applications, such as packaging, construction, and piping, where exposure to rain is inevitable. By avoiding hydrolysis, polyethylene maintains its mechanical strength and durability, even in wet environments.