0102030405
UV-327 UV A bsorber
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chemical name |
2- (2 ′ -hydroxyl 3 ′, 5 ′ -ditert-butyl phenyl) -5-chlorobenzo triazole |
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chemical reaction |
C20 H24 N3 OCl |
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Chemical structure diagram |
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CAS NO. |
3864-99-1 |
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formula weight |
357.9 |
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qualitative index |
surface |
Light yellow crystalline powder |
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content |
≥99%(HPLC) |
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melting point |
154-157 ℃ |
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ash content |
≤0.1% |
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volatile matter |
≤0.5% |
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light transmittance |
460 nm≥95% 500 nm≥97% |
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Features and Applications |
1. This product is a high efficiency ultraviolet absorber, which can effectively absorb ultraviolet light of 270-400 nm; 2. Good thermal stability, small volatility, and good phase solubility with polyolefin; 3. This product almost does not absorb visible light, especially suitable for colorless, transparent and light-colored products; 4. This product is suitable for polyolefin, polyvinyl chloride, polymethyl methacrylate, polyformaldehyde, polyurethane and ABS resin. This product is especially suitable for polypropylene fiber | ||||
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Addition is recommended |
ABS resin |
polytene |
sulan |
polyvinyl chloride |
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0.3-0.5% |
0.2-0.4 % |
0.3-0.6% |
0.2-0.5 % |
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pack |
20 KG carton / cardboard bucket |
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01
Types of UV absorbers
7 Jan 2019
Organic UV Absorbers: These are usually aromatic compounds that absorb UV radiation and convert it into heat energy. Examples include benzotriazole, benzophenone and triazine.
Inorganic UV Absorbers: These include materials such as titanium dioxide (TiO2) and zinc oxide (ZnO), which scatter and absorb UV radiation. They are often used in sunscreens and paints.
02
Application
7 Jan 2019
Plastics and Polymers: UV absorbers are added to plastics to prevent discoloration, loss of mechanical properties and embrittlement due to UV exposure.
Coatings and Lacquers: They help prevent fading and chalking, thereby maintaining the appearance and integrity of painted surfaces.
Textiles: UV absorbers are used in fabrics to protect the fabric from UV-induced degradation and to provide UV protection to the wearer.
Cosmetics and Sunscreen: In personal care products, UV absorbers protect the skin from harmful UV rays, reducing the risk of sunburn and skin cancer.
03
Mechanism of action
7 Jan 2019
UV absorbers work by absorbing high-energy UV radiation and releasing it as low-energy heat. This process prevents UV radiation from breaking the chemical bonds in the material, thus protecting it from damage.
Benefits:
Enhanced Durability: The material lasts longer and retains its properties when protected from UV radiation.
Aesthetic Preservation: Colors and finishes remain vibrant and intact.
HEALTH PROTECTION: In sunscreen, UV absorbers protect skin from harmful effects such as sunburn and long-term damage.
Compatibility: UV absorbers must be compatible with the materials they protect.
Concentration: The effectiveness of UV absorbers depends on their concentration and distribution within the material.
Stability: UV absorbers should be stable and not degrade over time or when exposed to UV radiation.
In summary, UV absorbers play a vital role in extending the service life and maintaining the quality of various materials by protecting them from damage by UV radiation. They are used in a wide range of industries from plastics and textiles to cosmetics and coatings.
The information of our products is for reference only. We are not responsible for any unexpected results, or patent dispute caused by it.