What are the effects of prolonged exposure to diesel exhaust on polypropylene?
Prolonged exposure to diesel exhaust can significantly impact polypropylene, a widely used thermoplastic polymer. Diesel exhaust contains harmful pollutants such as nitrogen oxides, sulfur compounds, and particulate matter, which can accelerate the degradation of polypropylene. Over time, these pollutants cause oxidative stress, leading to surface cracking, reduced tensile strength, and loss of elasticity. Additionally, the chemical interactions between diesel exhaust components and polypropylene may alter its molecular structure, compromising its durability and performance. Understanding these effects is crucial for industries relying on polypropylene in high-exposure environments, such as automotive and construction, to ensure material longevity and safety.
