The technical requirements for light stabilizers mainly include the following aspects:
High efficiency in absorbing ultraviolet rays: Light stabilizers need to have the ability to efficiently absorb ultraviolet rays and convert them into harmless heat or other forms of energy, thereby protecting the material from light damage.
Low volatility: The volatility of light stabilizers should be as low as possible to reduce losses and potential environmental pollution during application.
Chemical stability: Light stabilizers should have good chemical stability, be able to maintain their effectiveness in various environments, and not easily decompose or deteriorate.
Environmental friendliness: With the improvement of environmental awareness, the production and use of light stabilizers should comply with environmental protection standards and minimize negative impacts on the environment.
Compatibility: Light stabilizers should have good compatibility with the substrate and will not affect the performance and appearance of the substrate.
Safety: Light stabilizers should be safe and non-toxic during use and will not cause harm to human health and the environment.
Mechanism of action of light stabilizers: Light stabilizers shield or absorb the energy of ultraviolet rays, quench singlet oxygen, and decompose hydroperoxides into inactive substances, thereby eliminating or slowing down the possibility of photochemical reactions, preventing or delaying the process of photoaging, and extending the service life of polymer products.
Application areas: Light stabilizers are widely used in polymer products such as plastics, rubber, coatings, and synthetic fibers. For example, UV-320 high-efficiency light stabilizer performs well in plastics and other organic substances, especially in materials such as polyester and epoxy resin.