Due to the characteristic of heat-moldability, plastics have found widespread applications in various fields such as construction, transportation, office supplies, packaging, clothing, children's playgrounds, and even in concealed areas like water pipes or underground wiring. In the past, plastics were often perceived as weaker compared to metals or challenging to process relative to wood. However, with the invention of some functional additives, such as antioxidants and UV stabilizers, there is now a broader acceptance of the use of plastics.
Antioxidants and UV stabilizers are two common types of functional additives used in plastics. Their primary purpose is to effectively inhibit the generation and activity of free radicals in plastic products, particularly during thermal processing or prolonged exposure to high-temperature environments. These additives enhance the weather resistance and long-term performance of plastics.