In the realm of polymer science, maintaining the integrity and appearance of materials under constant exposure to environmental factors, particularly ultraviolet (UV) radiation, is a significant challenge. UV radiation can initiate a cascade of degradation processes, leading to color changes, loss of mechanical strength, and eventual product failure. To mitigate these effects, specialized additives known as UV absorbers are incorporated into polymer formulations. Among these, UV Absorber 234 (CAS 70321-86-7) stands out as a high-performance solution, particularly for demanding applications.

NINGBO INNO PHARMCHEM CO.,LTD. is a premier UV absorber manufacturer and supplier, dedicated to providing advanced chemical solutions. Our UV Absorber 234 offers exceptional protection for a wide range of polymers, ensuring their durability and aesthetic appeal.

Understanding UV Absorber 234

UV Absorber 234 is a high molecular weight, hydroxyphenyl benzotriazole derivative. Its primary function is to absorb UV light, particularly in the UVA and UVB spectrum (300-400 nm), and dissipate this energy as heat. This effectively shields the polymer matrix from the damaging effects of UV radiation.

Key properties that make UV Absorber 234 a preferred choice include:

  • Exceptional UV Absorption: It provides strong absorption across the critical UV spectrum, offering robust protection.
  • Low Volatility: This is a crucial advantage, especially for polymers processed at high temperatures. Its high molecular weight means it remains within the polymer matrix, preventing loss during processing and ensuring long-term efficacy. This makes it ideal for engineering plastics like polycarbonates and polyesters.
  • Good Compatibility: UV Absorber 234 exhibits excellent compatibility with a variety of polymers, including polyolefins, PVC, and styrenics, facilitating easy integration into formulations.
  • Minimal Color Contribution: It has very low absorbance in the visible light range, ensuring it does not impart unwanted color to the final product, which is essential for clear or light-colored applications.

Applications and Sourcing for B2B Buyers

Procurement managers and R&D scientists looking to buy UV Absorber 234 will find it invaluable for applications demanding high UV resistance:

  • Engineering Plastics: Enhance the weatherability of components used in automotive interiors/exteriors, electrical housings, and construction materials.
  • Films and Fibers: Protect agricultural films, packaging materials, and synthetic fibers from UV-induced degradation and discoloration.
  • Coatings: Improve the durability and appearance retention of coatings exposed to sunlight.
  • Consumer Goods: Ensure the longevity and aesthetic appeal of items like outdoor furniture, sporting goods, and appliance components.

Typical recommended use levels for UV Absorber 234 range from 0.15% to 0.60% by weight, depending on the polymer and application requirements. It can also be effectively combined with other stabilizers like Hindered Amine Light Stabilizers (HALS) and antioxidants to achieve synergistic effects.

Your Trusted Supplier in China

NINGBO INNO PHARMCHEM CO.,LTD. is a leading UV absorber supplier in China, committed to providing high-quality chemical additives. We offer competitive UV Absorber 234 pricing and ensure a stable, reliable supply chain. If you are seeking to understand how to purchase UV Absorber 234 for your polymer formulations, our experienced team is ready to assist you with technical support and quotation requests. Partner with us for your polymer stabilization needs.