UV Absorber UV-120

Product Overview

UV Absorber UV-120 represents a premium class of benzotriazole-based light stabilizers engineered for the protection of organic materials against ultraviolet degradation. This white crystalline powder is specifically formulated to maintain the integrity and aesthetic quality of polymers exposed to harsh environmental conditions. As a critical additive in the plastics industry, it functions by absorbing harmful UV radiation and dissipating it as harmless thermal energy, thereby preventing chain scission and cross-linking within the polymer matrix.

The chemical structure of UV-120 ensures minimal interaction with visible light spectra, which means it does not impart any initial coloration to the substrate. This characteristic is particularly vital for applications where clarity or specific pigment colors must be preserved without yellowing over time. Furthermore, the product exhibits exceptional thermal stability, allowing it to withstand high processing temperatures commonly encountered during extrusion and molding processes without decomposing or losing efficacy.

Key Specifications

Industrial Applications

This UV absorber is particularly useful for stabilizing pigmented polymers, especially in scenarios where the pigment itself might promote polymer degradation. It is widely compatible with a broad range of thermoplastic materials, including polyethylene, polypropylene, polystyrene, and polyoxymethylene. The product is especially recommended for polypropylene films, narrow tapes, and fibers where long-term weatherability is required.

For optimal performance, UV-120 is often used in conjunction with benzotriazole UV absorbers and nickel chelate light stabilizers. This combination creates a synergistic effect that significantly enhances the overall durability of the final product. The recommended addition amount typically ranges from 0.2% to 1.0%, depending on the specific polymer matrix and exposure conditions. Additionally, it can be effectively paired with antioxidants at concentrations of 0.05% to 0.5% to provide comprehensive protection against both photo-oxidative and thermal-oxidative degradation.

Storage and Handling

UV Absorber UV-120 is classified as non-dangerous goods, exhibiting non-toxic, non-flammable, and non-explosive properties. It is non-corrosive and demonstrates good storage stability under standard conditions. To maintain product quality, containers should be kept tightly closed in a cool, dry, and well-ventilated area. Proper handling ensures that the material retains its high purity and performance characteristics throughout its shelf life, making it a reliable choice for global manufacturing operations.