0102030405
1,5,8,12-Tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidylamino)-1,3,5-tr iazin-2-yl]-1,5,8,12-tetraazadodecane
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7 Jan 2019
Light stabilizers are additives used in materials, particularly polymers and plastics, to prevent degradation caused by exposure to ultraviolet (UV) light. UV rays can cause severe damage to materials, causing discoloration, loss of mechanical properties, and ultimately material failure. Light stabilizers help extend the life of these materials and maintain their appearance and functionality when they are exposed to sunlight or other sources of UV radiation.
There are many types of light stabilizers, each working through a different mechanism:
Ultraviolet Absorbers (UVA): These compounds absorb harmful UV radiation and dissipate it as low-level heat, preventing UV rays from reaching the polymer and causing damage. Common UV absorbers include benzotriazole, benzophenone, and triazine.
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7 Jan 2019
Hindered Amine Light Stabilizer (HALS): HALS does not absorb UV rays, but neutralizes free radicals formed during photo-oxidation. They are very effective in preventing polymer degradation and are often combined with UV absorbers for enhanced protection.
Quenchers: These stabilizers work by deactivating the excited states of UV-absorbing molecules, thereby preventing the energy from causing chemical reactions that lead to degradation. Nickel quenchers are one example, although their use has declined due to environmental concerns.
Antioxidants: While antioxidants themselves are not light stabilizers, they can complement the effects of UV absorbers and hindered amine stabilizers by scavenging free radicals and breaking down peroxides formed during degradation.
Light stabilizers have a wide range of uses, including:
Auto Parts: Prevents interior and exterior parts from fading and cracking.
Packaging Materials: Maintains the integrity and appearance of products exposed to sunlight.
Building Materials: such as roofing, siding and outdoor furniture to ensure long-term durability.
Textiles: Prevents fading and degradation of fabrics used in outdoor environments.
The choice of light stabilizer depends on the specific material, expected exposure conditions, and the expected service life of the product. By adding light stabilizers, manufacturers can significantly improve the performance and durability of their products in UV exposure environments.
The information of our products is for reference only. We are not responsible for any unexpected results, or patent dispute caused by it.