For chemists, formulators, and product developers in the coatings industry, understanding the precise technical properties of additives is fundamental to achieving optimal performance. UV Absorber 1130 is a high-performance light stabilizer that offers a compelling combination of chemical attributes and functional benefits. As a leading manufacturer and supplier, NINGBO INNO PHARMCHEM CO.,LTD. provides access to this crucial additive, backed by detailed technical information to empower your formulation process. This article delves into the technical specifications that make UV Absorber 1130 a preferred choice for demanding applications.

Chemical Identity and Structure

UV Absorber 1130 is classified as a hydroxyphenyl benzotriazole. Its chemical name is often described as a complex ethoxylated compound. The core benzotriazole structure, coupled with hydroxyl and tert-butylphenyl groups, is responsible for its broad UV absorption capabilities. The ethoxylation (presence of repeating ethylene oxide units, (OCH2CH2)n) contributes to its liquid form and its compatibility with a wider range of solvents and resin systems, including water-based formulations. The CAS numbers associated with it, primarily 104810-48-2, help in precisely identifying this specific chemical entity.

Key Physical and Chemical Properties

Understanding the typical properties of UV Absorber 1130 is crucial for formulators:

  • Appearance: Typically a Yellow liquid, ranging from light yellow to light amber, which simplifies incorporation into many liquid coating systems.
  • Molecular Weight: Approximately 353.42 g/mol, indicating a relatively stable molecule.
  • Solubility: It exhibits good solubility in polar and non-polar organic solvents but has very limited solubility in water. This characteristic is important for its use in solvent-borne coatings and also for its emulsification in water-based systems using appropriate co-solvents or emulsifiers.
  • Thermal Stability (TGA): The Thermogravimetric Analysis (TGA) indicating the temperature at which 5% weight loss occurs is around 247°C. This high decomposition temperature signifies excellent thermal stability, making it suitable for processes involving heat.
  • Spectral Transmittance: High transmittance at 460 nm (≥95%) and 500 nm (≥97%) confirms its clarity and minimal contribution to color in clear coats and light-colored formulations.
  • Ash Content: Typically ≤ 0.3%, indicating high purity and minimal inorganic impurities.
  • Volatile Content: Usually ≤ 1.0%, ensuring minimal loss during processing and application.

Performance Characteristics and Applications

The technical properties translate directly into performance benefits. UV Absorber 1130's high temperature and extraction resistance are critical for applications like automotive coatings, where durability under demanding conditions is paramount. Its ability to maintain effectiveness even when exposed to high heat or aggressive solvents prevents premature degradation of the coating. Furthermore, its hydroxyl functionality allows for potential covalent bonding with crosslinkers like isocyanates or melamine resins, which can further reduce migration and enhance long-term performance. This makes it an excellent candidate for both industrial and automotive OEM coatings, as well as refinish applications.

Sourcing Technical Grade UV Absorber 1130 from NINGBO INNO PHARMCHEM CO.,LTD.

For formulators who need reliable technical data and consistent product quality, partnering with a knowledgeable supplier is essential. NINGBO INNO PHARMCHEM CO.,LTD. offers UV Absorber 1130 with precise specifications and comprehensive technical support. We understand the importance of these details for your success, whether you are looking to buy UV Absorber 1130 for automotive, industrial, or other specialty coatings. Contact us today to request a technical datasheet, discuss your application needs, and get competitive pricing for this high-performance UV stabilizer.