What are the gamma radiation resistance properties of polyethylene outdoor seating?

Polyethylene is widely used in outdoor seating due to its durability, weather resistance, and cost-effectiveness. However, its performance under gamma radiation is a critical factor for applications in high-radiation environments, such as nuclear facilities or space exploration. Studies show that polyethylene exhibits moderate gamma radiation resistance, with cross-linking and chain scission being the primary degradation mechanisms. High-density polyethylene (HDPE) generally outperforms low-density variants due to its tighter molecular structure. While prolonged exposure can lead to brittleness and discoloration, additives like stabilizers can enhance its radiation tolerance. For outdoor seating in radiation-prone areas, polyethylene offers a balance of practicality and resilience, though periodic replacement may be necessary in extreme conditions.