Speciality Chemicals

Light Stabilizer 144

  • CAS No.63843-89-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-performance hindered amine light stabilizer for plastics and elastomers. Provides superior UV protection and extends product lifespan effectively.

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Product Technical Details

Product Overview

Light Stabilizer 144 represents a cornerstone in modern polymer stabilization technology. As a high-molecular-weight hindered amine light stabilizer (HALS), it is engineered to provide robust protection against photodegradation in various organic substrates. Unlike conventional stabilizers, this compound offers a dual function, acting as both a light stabilizer and an antioxidant. This dual functionality simplifies formulation processes while enhancing the overall durability of the final product. Our manufacturing process ensures high purity levels, minimizing impurities that could affect polymer clarity or mechanical strength.

The efficacy of Light Stabilizer 144 lies in its ability to scavenge free radicals formed during the photo-oxidation process. By interrupting the degradation cycle, it preserves the molecular integrity of the polymer chain. This results in maintained tensile strength, impact resistance, and surface gloss over extended periods of outdoor exposure. It is particularly valued for its low volatility, which ensures that the stabilizer remains within the polymer matrix even during high-temperature processing or long-term weathering.

Technical Specifications

Test Unit Specification
Appearance - White to Slightly Yellow Powder
Assay % 98.00 Min
Melting Point 144.00 Min
Loss on Drying % 0.50 Max
Transmittance 450nm % 95.00 Min
Transmittance 500nm % 97.00 Min

Industrial Applications

This versatile stabilizer is widely used in the production of durable goods requiring long-term weatherability. Key application areas include automotive exterior parts, agricultural films, outdoor furniture, and construction materials. It is highly compatible with styrenic block copolymers, polyamide sealants, adhesives, and thermoplastic elastomers. In the polyolefin sector, it prevents cracking and chalking, ensuring that products retain their aesthetic appeal and structural integrity.

Furthermore, Light Stabilizer 144 can be used in combination with UV absorbers to achieve synergistic effects, providing comprehensive protection against both UV radiation and thermal oxidation. This capability allows formulators to optimize their recipes for maximum efficiency and cost-effectiveness. The phenolic antioxidant moiety within its structure also allows users to reduce or eliminate other phenolic antioxidants in the polymer system, streamlining the additive package.

Key Features and Advantages

  • Exceptional UV protection and antioxidant properties.
  • Low volatility ensures longevity in high-temperature processing.
  • Excellent compatibility with a wide range of polymer matrices.
  • Reduces the need for additional phenolic antioxidants.
  • Enhances the aesthetic appeal by preventing yellowing.
  • Significantly retards light and thermal degradation.

Storage and Handling

To maintain optimal quality, store this product in a cool, dry place with containers tightly closed. Avoid exposure to direct sunlight and moisture during storage and transportation. Standard packaging includes 20kg cartons, ensuring safe delivery for global bulk orders. Proper handling procedures should be followed to ensure safety and maintain the chemical stability of the material throughout its shelf life.