Anti-aging and sun-protective plastic shading net

Plastics and other polymeric materials placed outdoors undergo an auto - oxidation reaction under the action of ultraviolet (UV) light from sunlight and fluorescent sources. This leads to the degradation and deterioration of the polymer, resulting in changes in appearance and a decline in mechanical properties. In such cases, UV absorbers need to be added to achieve the goals of color protection and anti - aging. 

Most UV absorbers are aromatic compounds containing benzene rings, which can absorb UV light. Through the resonance effect of the benzene ring, the absorber absorbs the energy of UV light and converts it into heat or non - destructive light energy, which is then released. After that, the absorber returns to its original molecular structure. In this way, the absorber can be used repeatedly without being damaged itself. This is a chemical principle of UV resistance.