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Essential light stabilizers and additives for enhanced material durability

Sep 18, 2024 0

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Introduction

In the world of material science, protecting products from degradation due to UV light is crucial. Light stabilizers play a key role in this, alongside other additives like antioxidants and plasticizers that enhance overall material performance. This article provides a comprehensive overview of various light stabilizers and complementary additives, detailing their functions, benefits, and specific applications.

Types of Light Stabilizers

  1. UV Absorbers点击1..png

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UV absorbers protect materials by absorbing ultraviolet radiation and converting it into heat, thereby reducing UV-induced damage and extending the material's lifespan. Key products and their applications include: 

  • UV-531 (CAS 1843-05-6): Commonly used in plastics and coatings to prevent UV degradation. It is effective in automotive coatings, exterior paints, and packaging materials.
  • UV-329 (CAS 3147-75-9): Provides stability to polymers and coatings, making it ideal for use in outdoor applications like building materials and agricultural films.
  • UV-P (CAS 2440-22-4): Used in various polymers and coatings to enhance UV protection, particularly in consumer goods and electronics.
  • BP-1 (CAS 131-56-6):  Protects materials from UV-induced damage, commonly used in packaging films and outdoor plastics.
  • BP-2 (CAS 131-55-5): Enhances UV stability in various polymers, such as those used in automotive parts and construction materials.
  • BP-4 UV 284 (CAS 4065-45-6): Offers UV protection in coatings and plastics, particularly in applications exposed to sunlight.
  • BP-5 (CAS 6628-37-1): Used in plastic films and coatings to prevent UV degradation, especially in outdoor settings.
  • BP-6 (CAS 131-54-4): Ensures durability and longevity in UV-sensitive materials, commonly used in protective coatings and films.
  • BP-8 UV-24 (CAS 131-53-3): Provides UV protection for various materials, including textiles and agricultural films.
  • BP-9 (CAS 76656-36-5): Protects materials from UV-induced degradation, ideal for use in packaging and consumer products.
  • UV-9 (CAS 131-57-7): Enhances UV stability in polymers and coatings, particularly in outdoor and automotive applications.

2. Photoinitiators点击1..png

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Photoinitiators are critical for initiating polymerization reactions when exposed to UV light, essential for UV curing applications. They enhance material stability and performance. Notable examples include:

  • Photoinitiator TPO (CAS 75980-60-8): Promotes rapid curing of UV-sensitive coatings and inks, widely used in printing and automotive industries.
  • Irgacure 819 (CAS 162881-26-7): Efficiently initiates polymerization in light-curing systems, used in dental materials and electronic coatings.
  • Photoinitiator BP (CAS 119-61-9): Commonly used in various UV curing applications, such as in adhesives and coatings.
  • Photoinitiator 379 (CAS 119344-86-4): Ensures effective curing of UV-sensitive materials, used in the production of inks and coatings.
  • Photoinitiator 369 (CAS 119313-12-1): Provides strong initiation of polymerization in coatings and inks, ideal for printing and graphic arts.
  • Photoinitiator 2959 (CAS 106797-53-9): Used in light-curing applications for enhanced stability, particularly in high-performance coatings.
  • Photoinitiator 1173 (CAS 7473-98-5): Improves curing efficiency in UV-sensitive products, such as in the manufacture of dental and industrial coatings.
  • Photoinitiator TPO-L (CAS 84434-11-7):  Offers excellent performance in UV curing processes, used in various industrial applications.
  • Photoinitiator BDK (CAS 24650-42-8):  Enhances curing rates and material stability, commonly used in high-speed UV curing systems.
  • Photoinitiator 907 (CAS 71868-10-5): Promotes effective polymerization in UV-sensitive materials, used in coatings and adhesives.
  • Photoinitiator 184 (CAS 947-19-3): Ensures efficient curing in light-sensitive systems, ideal for use in the production of inks and coatings.
  • Photoinitiator PBZ (CAS 2128-93-0): Used in various UV curing applications for improved stability, including in the manufacture of printing inks.
  • Photoinitiator BMs (CAS 83846-85-9): Provides strong initiation for polymerization reactions, used in adhesives and coatings.
  • Photoinitiator OMBB (CAS 606-28-0): Enhances curing efficiency in light-sensitive products, used in the production of dental and industrial coatings.
  • Photoinitiator EMK (CAS 90-93-7): Improves performance in UV curing systems, used in various industrial applications.
  • Photoinitiator ITX (CAS 5495-84-1): Used for efficient curing in UV-sensitive applications, including in coatings and inks.
  • Photoinitiator EDB (CAS 10287-53-3): Offers high performance in light-curing processes, used in adhesives and coatings.
  • Photoinitiator EHA (CAS 21245-02-3): Enhances curing and stability in UV-sensitive products, particularly in the manufacture of high-performance coatings.
  • Photoinitiator 784 (Irgacure 784) (CAS 125051-32-3): Provides strong initiation for polymerization processes, used in various industrial and commercial applications. 

3. Hindered Amine Light Stabilizers (HALS)点击1..png

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HALS are effective in preventing light-induced oxidative degradation by trapping free radicals, essential for maintaining material stability under UV exposure. Key HALS products and their applications include:

  • Light Stabilizer 770 (CAS 52829-07-9): Offers long-term stabilization for polymers and coatings, used in outdoor applications and high-performance plastics.
  • HS-944 (CAS 70624-18-9): Provides high performance in UV stabilization for various materials, including automotive and industrial coatings.
  • HS-508 (CAS 41556-26-7): Enhances durability and resistance to UV light, used in a wide range of polymer applications.

Complementary Additives

1. Antioxidants点击1..png

Antioxidants further improve the aging resistance of materials by neutralizing free radicals. Key antioxidants and their uses include:

  • Antioxidant 1010 (CAS 6683-19-8): Provides excellent thermal stability and oxidation protection, commonly used in polymers, rubber, and resins to extend their lifespan.
  • Antioxidant 168 (CAS 31570-04-4): Enhances stability and longevity in various polymer systems, including in automotive parts and industrial materials.

2. Plasticizers点击1..png

Plasticizers increase flexibility and durability, improving the performance of materials under stress. Notable plasticizers and their applications include:

  • DOTP (CAS 6422-86-2): Enhances flexibility and processing of plastics, commonly used in flooring, cables, and medical devices.
  • DBP (CAS 84-74-2): Used to increase the flexibility of various polymers, including in coatings, adhesives, and PVC products.

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Conclusion

Selecting the right combination of light stabilizers and complementary additives is essential for optimizing material performance and longevity. By incorporating UV absorbers, photoinitiators, HALS, and other additives like antioxidants and plasticizers, manufacturers can achieve superior protection, flexibility, and durability in their products.

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