What are the effects of ozone exposure on the elasticity of polypropylene sculptures?
Ozone exposure significantly impacts the elasticity and structural integrity of polypropylene sculptures. As a common polymer, polypropylene is susceptible to oxidative degradation when exposed to ozone, a reactive gas. Over time, this exposure leads to chain scission in the polymer matrix, reducing the material's flexibility and causing brittleness. Studies show that prolonged ozone contact accelerates aging, resulting in surface cracks and loss of tensile strength. Artists and conservators must consider protective coatings or UV stabilizers to mitigate these effects, especially for outdoor installations. Understanding these degradation mechanisms is crucial for preserving the durability and aesthetic quality of polypropylene artworks.
