As a prominent manufacturer in China, we specialize in producing advanced chemical additives that enhance the performance and durability of materials. Among our key offerings is Light Stabilizer 2020 (CAS 192268-64-7), a high molecular weight Hindered Amine Light Stabilizer (HALS). Understanding the science behind these crucial compounds is key to appreciating their value in protecting polymers from the detrimental effects of ultraviolet (UV) radiation.

Polymers, the backbone of countless modern products, are susceptible to photodegradation. When exposed to UV light, polymer molecules absorb energy, which can lead to the formation of highly reactive free radicals. These radicals initiate a chain reaction, breaking molecular bonds, altering chemical structures, and causing irreversible damage such as discoloration, embrittlement, and loss of mechanical strength. This process is accelerated by heat and oxygen.

Hindered Amine Light Stabilizers, like our Light Stabilizer 2020, operate through a different mechanism than UV absorbers. Instead of absorbing UV light, HALS function as radical scavengers. The characteristic 'hindered amine' structure allows these molecules to trap and deactivate the free radicals formed during photodegradation. More remarkably, HALS act catalytically; a single HALS molecule can neutralize many free radical chains, providing highly efficient and long-lasting protection even at low concentrations. This regenerative cycle is what makes HALS so effective for long-term stabilization.

Our Light Stabilizer 2020 is an oligomeric HALS, meaning it is composed of repeating units of a hindered amine structure, resulting in a high molecular weight. This design offers several critical advantages for formulators and manufacturers. Firstly, its high molecular weight leads to low volatility, ensuring it remains stable during high-temperature processing common in plastic extrusion, molding, and fiber spinning. Secondly, it exhibits excellent resistance to migration and extraction, meaning the stabilizer stays embedded within the polymer matrix rather than leaching out when exposed to solvents, water, or heat. This guarantees sustained protection and prevents issues like surface blooming.

We focus on producing Light Stabilizer 2020 with rigorous quality control to ensure consistency in performance, compatibility, and efficacy. By choosing us as your supplier, you gain access to a reliable source of this advanced additive, available at competitive prices. We are dedicated to helping our clients buy HALS 2020 to enhance the durability, appearance, and lifespan of their polymer products, from plastics and fibers to coatings and adhesives.