How does the brittleness of aged polypropylene impact outdoor armchair safety?
As polypropylene ages, it undergoes chemical and physical changes that increase its brittleness, significantly impacting the safety of outdoor armchairs made from this material. Exposure to UV radiation, temperature fluctuations, and oxidative degradation weaken the polymer chains, making the plastic prone to cracking and breaking under stress. Over time, this brittleness can lead to structural failures, such as sudden fractures in load-bearing components like armrests or legs, posing a safety hazard to users. Regular inspections and choosing UV-stabilized or reinforced polypropylene can mitigate these risks, ensuring longer durability and safer outdoor furniture. Understanding these material limitations helps consumers make informed decisions about maintenance and replacement.
