What UV-resistant additives are used in polypropylene outdoor bar stools?
Polypropylene outdoor bar stools are popular for their durability and versatility, but prolonged exposure to UV radiation can cause degradation. To combat this, manufacturers incorporate UV-resistant additives into the polymer matrix. Common additives include hindered amine light stabilizers (HALS) and UV absorbers like benzotriazoles and benzophenones. These additives work by absorbing or neutralizing UV radiation, preventing chain scission and color fading. Additionally, carbon black and titanium dioxide are often used as pigments to enhance UV resistance. By integrating these additives, polypropylene outdoor bar stools maintain their structural integrity and aesthetic appeal, even under harsh sunlight.
