In the industrial chemical landscape, ultraviolet (UV) absorbers are indispensable for protecting materials from the damaging effects of sunlight. Among the most effective classes of UV absorbers are the benzotriazoles, known for their broad-spectrum UV absorption and excellent photostability. This comprehensive guide will explore the significance of benzotriazole UV absorbers, with a particular focus on UV Absorber 329 (CAS 3147-75-9), a product we proudly manufacture and supply.

What are Benzotriazole UV Absorbers?

Benzotriazole UV absorbers are organic compounds characterized by a benzotriazole ring structure attached to a phenolic moiety. This unique chemical architecture allows them to efficiently absorb UV radiation and dissipate the energy harmlessly as heat through a process called Excited-State Intramolecular Proton Transfer (ESIPT). This mechanism makes them highly effective at preventing UV-induced degradation in a wide range of substrates.

UV Absorber 329: A Leading Benzotriazole Solution

UV Absorber 329 is a prime example of a highly effective benzotriazole UV absorber. Its chemical structure, 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol, features a bulky tert-octyl group that enhances its solubility in organic polymers and reduces its volatility, making it ideal for high-temperature processing and long-term applications. As a leading manufacturer and supplier based in China, we offer UV Absorber 329 as a high-purity white powder (assay 99%min), ensuring consistent and reliable performance.

Key Benefits and Applications:

  • Exceptional UV Protection: Effectively shields polymers from UV radiation, preventing yellowing, chalking, and embrittlement.
  • Broad Polymer Compatibility: Works well with a wide array of polymers including PC, PET, ABS, PS, PVC, and polyesters.
  • Improved Durability: Significantly extends the service life of products exposed to sunlight, such as automotive parts, outdoor furniture, coatings, and films.
  • Color Retention: Helps maintain the original color and appearance of materials over time.

Why Choose Our Manufacturing and Supply Services?

As a dedicated manufacturer, we ensure the highest quality standards for our UV Absorber 329. Our strategic location in China allows us to offer competitive pricing for bulk purchases, making it an economically viable solution for industries worldwide. We are committed to providing a stable supply chain, ensuring that procurement managers can reliably buy this essential additive. For R&D scientists and formulators, we offer technical support and are happy to provide quotes and samples for evaluation.

Procurement Insights:

When sourcing benzotriazole UV absorbers, it is crucial to consider the purity, specific absorption spectrum, volatility, and compatibility with your intended application. UV Absorber 329 stands out for its balanced properties, offering excellent performance across numerous polymer types. We encourage potential buyers to reach out to us for detailed specifications, pricing, and to discuss how our UV Absorber 329 can meet their specific needs for enhanced material protection.

In conclusion, benzotriazole UV absorbers, particularly UV Absorber 329, are indispensable for safeguarding materials against UV degradation. Partnering with a reputable manufacturer and supplier ensures access to high-quality products and reliable service, ultimately contributing to the development of more durable and aesthetically pleasing end products.