Choosing the Right Light Stabilizer: Focus on HALS 622 for Polyolefins
Polyolefins, such as polyethylene (PE) and polypropylene (PP), are among the most widely used polymers globally, found in everything from packaging and textiles to automotive components and agricultural films. Their versatility and cost-effectiveness are undeniable, but they are also inherently susceptible to degradation when exposed to ultraviolet (UV) radiation. This degradation can manifest as loss of mechanical strength, discoloration, and surface chalking, significantly limiting the outdoor service life of products made from these materials. Effective UV stabilization is therefore paramount, and Hindered Amine Light Stabilizer 622 (HALS 622) presents a compelling solution, particularly for polyolefin applications.
HALS 622 belongs to the class of oligomeric hindered amine light stabilizers, distinguished by its high molecular weight. This characteristic is especially beneficial for polyolefins, as it leads to very low volatility. During the extrusion and molding processes common for polyolefins, which often involve high temperatures, additives with high volatility can be lost, reducing their effectiveness. HALS 622's low volatility ensures that the stabilizer remains within the polymer melt and solidifies into the final product, providing persistent protection. This makes it an excellent choice for demanding applications such as agricultural films or automotive exterior parts.
Another critical advantage of HALS 622 for polyolefins is its low migration. Migration can be problematic, especially in thin films or fibers where surface contact is high, or when the plastic comes into contact with other materials or liquids. The high molecular weight of HALS 622 significantly impedes this migration, ensuring that the UV protection remains localized within the polymer matrix where it is needed. This property, coupled with its FDA sanction for food contact, makes it a preferred stabilizer for PE and PP used in food packaging.
Furthermore, HALS 622 exhibits excellent compatibility with polyolefins and can be effectively used in conjunction with other additives, such as antioxidants and UV absorbers, to create synergistic protective systems. This combined approach can yield superior performance compared to using a single additive, offering enhanced resistance to both UV radiation and thermal degradation. The ability of HALS 622 to perform well even in pigmented polyolefin systems is another significant advantage, ensuring that colored products retain their aesthetic appeal.
At NINGBO INNO PHARMCHEM CO.,LTD., we are dedicated to providing high-performance additives that address specific industry challenges. For polyolefin manufacturers seeking to enhance the durability and weatherability of their products, HALS 622 offers a scientifically sound and reliable solution. Its unique combination of properties makes it an indispensable tool for extending the useful life of PE and PP products, ensuring they perform optimally even under harsh environmental conditions.
HALS 622 belongs to the class of oligomeric hindered amine light stabilizers, distinguished by its high molecular weight. This characteristic is especially beneficial for polyolefins, as it leads to very low volatility. During the extrusion and molding processes common for polyolefins, which often involve high temperatures, additives with high volatility can be lost, reducing their effectiveness. HALS 622's low volatility ensures that the stabilizer remains within the polymer melt and solidifies into the final product, providing persistent protection. This makes it an excellent choice for demanding applications such as agricultural films or automotive exterior parts.
Another critical advantage of HALS 622 for polyolefins is its low migration. Migration can be problematic, especially in thin films or fibers where surface contact is high, or when the plastic comes into contact with other materials or liquids. The high molecular weight of HALS 622 significantly impedes this migration, ensuring that the UV protection remains localized within the polymer matrix where it is needed. This property, coupled with its FDA sanction for food contact, makes it a preferred stabilizer for PE and PP used in food packaging.
Furthermore, HALS 622 exhibits excellent compatibility with polyolefins and can be effectively used in conjunction with other additives, such as antioxidants and UV absorbers, to create synergistic protective systems. This combined approach can yield superior performance compared to using a single additive, offering enhanced resistance to both UV radiation and thermal degradation. The ability of HALS 622 to perform well even in pigmented polyolefin systems is another significant advantage, ensuring that colored products retain their aesthetic appeal.
At NINGBO INNO PHARMCHEM CO.,LTD., we are dedicated to providing high-performance additives that address specific industry challenges. For polyolefin manufacturers seeking to enhance the durability and weatherability of their products, HALS 622 offers a scientifically sound and reliable solution. Its unique combination of properties makes it an indispensable tool for extending the useful life of PE and PP products, ensuring they perform optimally even under harsh environmental conditions.
Perspectives & Insights
Quantum Pioneer 24
“Furthermore, HALS 622 exhibits excellent compatibility with polyolefins and can be effectively used in conjunction with other additives, such as antioxidants and UV absorbers, to create synergistic protective systems.”
Bio Explorer X
“This combined approach can yield superior performance compared to using a single additive, offering enhanced resistance to both UV radiation and thermal degradation.”
Nano Catalyst AI
“The ability of HALS 622 to perform well even in pigmented polyolefin systems is another significant advantage, ensuring that colored products retain their aesthetic appeal.”