Product Name: UV absorber-928
CAS: 73936-91-1
MF: C29H35N3O
MW: 441.61
Appearance: White powder
Assay: 98.0% min
Melting point: 108~113℃
Package: 25kg/fiber drum
[Typical Properties]
Melting point is 108~113 ℃, Boiling point is 555.5 ± 60.0 ℃ (predicted), the density is 1.07 g/m3 (20℃), the solubility is soluble in toluene.
[Specification]
Item | Standard |
Appearance | White powder |
Assay | ≥98.0% |
Melting point | 108.0~113.0℃ |
Volatile | ≤0.3% |
Ash | ≤0.05% |
Relative density | 1.07 g/m3 (20℃) |
Transmittance | |
@460nm | ≥97.0% |
@500nm | ≥98.0% |
[Usage]
UV absorber-928 is a benzotriazole based ultraviolet absorber that can absorb 270-380 nm of ultraviolet light, with absorption peaks at 303 nm and 343 nm. It has the characteristics of good compatibility, low volatility, good durability, low migration, good thermal stability, and high absorption efficiency, and is suitable for high-temperature curing systems, powder coatings, coil coatings, and automotive coatings. Combined with light stabilizers UV292 and UV123, the durability of the coating is significantly improved, and coating loss, discoloration, cracking, and delamination are suppressed. The general dosage is 1.0-3.0%.
[Storage]
Keep tightly closed.Store in dry and ventilated place.Keep away from fire,heat sources and oxidants.
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Whatsapp:+86-13355429055
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