CAS · 52829-07-9
Product Overview
Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate丨CAS 52829-07-9, commonly known as Tinuvin 292, is a chemical compound widely used in the plastics and coatings industries as a UV stabilizer or light stabilizer. This compound is an organophosphorus compound that functions primarily by absorbing ultraviolet light and converting it into harmless heat, preventing the degradation of materials exposed to UV radiation. Its chemical structure consists of two piperidyl groups attached to a sebacate ester, which provides excellent stability and performance in various applications.
Product Specifications
| Property | Specification |
|---|---|
| Appearance | White powder or particle |
| Assay | 99.0% min |
| Melting point | 81.0 to 86.0°C |
| Volatiles content | 0.5% max |
| Ash content | 0.1% max |
| Transmittance 425 nm | 98.0% min |
| Transmittance 500 nm | 99.0% min |
Applications
1. UV Stabilizer in Polymers and Plastics
One of the primary uses of bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate is as a UV stabilizer in plastic formulations, particularly for materials exposed to sunlight.
● Polyolefins (e.g., polyethylene, polypropylene): Protects against UV-induced degradation such as yellowing, cracking, and loss of mechanical properties.
● Polyvinyl chloride (PVC): Used in PVC products to maintain color stability and durability.
● Polycarbonate and acrylic: Enhances the lifespan of clear plastics and other transparent polymers used in outdoor applications.
● Films and coatings: Applied in the production of UV-resistant films, coatings, and paints.
2. Paints and Coatings
Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate丨CAS 52829-07-9 is an effective UV stabilizer in paints and coatings, helping to protect painted surfaces from UV degradation, such as chalking, color fading, and cracking.
● Exterior paints: Ensures the longevity of exterior coatings on buildings and other structures exposed to sunlight.
● Automotive coatings: Protects automotive paints from the harmful effects of UV light, preventing fading and damage.
● Wood coatings: Preserves the color and integrity of wood finishes exposed to UV radiation.
3. Fibers and Textiles
In the textile industry, this compound is used to stabilize synthetic fibers and fabrics that are exposed to sunlight, especially in outdoor applications.
● Outdoor fabrics (e.g., for furniture, awnings, tents): Enhances the durability and color retention of outdoor textiles.
● Carpets and upholstery: Protects fibers from UV-induced wear and tear, extending the useful life of products.
4. Rubber and Elastomers
UV stabilizers like bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate are important in the rubber industry, particularly in automotive tires and weather-resistant seals.
● Tires: Prevents the degradation of rubber from prolonged UV exposure, improving the longevity of tires.
● Weather seals and gaskets: Used in automotive and industrial seals to resist cracking, discoloration, and brittleness due to UV exposure.
5. Agricultural Films and Sheets
Used in agricultural applications, bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate helps protect agricultural films and greenhouse covers from UV degradation.
● Greenhouse films and polycarbonate panels: Extends the life of greenhouse coverings that are constantly exposed to sunlight.
● Agricultural plastic covers: Maintains the integrity of plastics used in farming, such as irrigation tubes or protective covers for crops.
6. Photographic and Optical Materials
This compound is used in optical lenses and photographic films to protect the material from UV damage, maintaining clarity and quality over time.
● Camera lenses and optical components: Prevents yellowing and physical degradation of lenses from UV light exposure.
● Photographic film and paper: Ensures the longevity and stability of photographic products.
Benefits
1. Effective UV Protection
The primary benefit of Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate丨CAS 52829-07-9 is its excellent ability to absorb UV radiation and convert it into harmless energy, effectively preventing the photodegradation of materials exposed to sunlight. This enhances the durability of products and maintains their performance and appearance over time.
2. Long-lasting Stability
The compound is known for its long-lasting effectiveness in stabilizing materials against UV radiation. It provides durable protection even under harsh environmental conditions, making it ideal for outdoor applications.
3. Prevents Color Fading and Yellowing
In plastics, coatings, and textiles, bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate prevents yellowing and fading caused by UV light, maintaining the aesthetic quality of materials. This is particularly valuable in applications where color retention is critical.
4. Improved Mechanical Properties
By preventing UV-induced degradation, bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate helps to retain the mechanical strength of materials, preventing them from becoming brittle or weak over time. This is essential in applications like automotive parts, textiles, and construction materials.
5. Non-toxic and Environmentally Friendly
Unlike many other UV stabilizers, bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate is considered non-toxic and environmentally friendly, making it suitable for use in products where safety and sustainability are concerns. It does not produce harmful by-products when used in plastic products or coatings.
6. Versatile Compatibility
This compound is compatible with a wide range of polymers and materials, including polyolefins, PVC, polycarbonates, and more. This makes it a versatile choice for various industries that require UV protection in their products.
7. Prevents Degradation in Harsh Environments
Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate enhances the weathering resistance of materials exposed to prolonged sunlight, heat, and environmental stress. It is particularly beneficial in outdoor applications, such as construction, agriculture, and automotive.
Conclusion
Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate丨CAS 52829-07-9 is a powerful UV stabilizer with a wide range of applications in industries like plastics, coatings, textiles, and agriculture. Its ability to prevent UV degradation, color fading, and mechanical breakdown makes it an essential component in the production of long-lasting, durable products. Additionally, its non-toxic and environmentally friendly properties enhance its appeal in sustainable manufacturing. As demand for UV-resistant materials continues to grow, the role of bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate in ensuring the longevity and performance of products exposed to the elements will remain invaluable.
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