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Tiangang® UV-237
High Efficiency Benzotriazole UV Absorber
| Chemical name | Benzotriazol derivatives |
|
Description |
UV absorber Tiangang® UV-237 is a highly efficient UV absorber for a variety of plastics and other organic substrates, including polyolefins, and most engineering plastics, as well as PVC, PMMA, PU, PET, POM, polyesters, and various elastomers (TPU, TPE), and adhesives. Tiangang UV-237 features strong UV absorption, low initial color, excellent compatibility, and moderately low volatility. When added to the substrates, it protects the substrate from UV degradation, preserving the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor use. Dosage level of Tiangang® UV-237 is between 0.10 and 1.0%, depending on substrate and performance requirements. When used in combination with Tiangang® series of Hindered Amine light stabilizers (HALS), synergistic performance is often observed. |
UV absorber Typical properties
| Appearance |
Melting range °C |
Volatility 2% weight loss, °C |
Flash point °C | |
| Tiangang® UV-237 | Slightly yellow powder | 80 ~ 105 | > 200 | 229 |
Solubility @ 20°C (g/100 ml solvent)
| Tiangang® UV-237 | Acetone | Chloroform | Cyclohexane | Ethyl acetate | n-Hexane | Methanol | Water |
| 8 | 41 | 15 | 16 | 11 | 0.5 | < 0.01 |
Safety & handling
| Tiangang® UV-237 | UV absorber use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling. Store the product in a cool, dry, well-ventilated area away from incompatible materials. |
| Disclaimer | The information supplied is presented in good faith and has been derived from sources believed to be reliable. Since conditions of use are beyond our control, all risks are assumed by the user. No representation is expressed or implied, and nothing herein shall be construed as permission or recommendation to practice a patented invention without license. |
Light Stabilizer for Plastics
Light Stabilizer for Coatings
