UV Absorber

Product Description

Ultraviolet Absorber
NH-UV-327
Basic Information
Trademark: NH-UV-327
Chemical Name: 2-(2'-Hydroxy-3', 5'-di-tert-butylphenyl)-5-chlorobenzotriazole
Molecular Formula: C17H18N3OCl
Molecular Weight: 357.9
CAS No.: 3864-99-1
Physicochemical Properties
Item: Standard
Appearance: White or slight yellow powder
Assay:; 99.0%
Volatility; 0.50%
Melting Range: 154.0-158.0
Ash; 0.10%
Transmittance; 96.0%(425nm),; 98.0%(500nm)
Applications
Ultraviolet Absorbent NH-UV-327 is a high efficient anti-aging agent. It can strongly absorb UV between 300-400 nm, and the maximum absorption wave length could be 353 nm. It has good chemical stability, low volatility; And it has good compatibility with the polyolefin, especially is used for PE and PE. In addition, it can be used for POM, PMMA, PU, polypropylene fiber, etc.
Referenced Dosage 0.1-0.5%
Packing&Storage
Cardboard drums with plastic bag in-line, net weight: 20kg/drum.
Should be stored by sealed container in a dark and dry place

Ultraviolet Absorber
NH-UV-328
Basic Information
Chemical Name: 2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
Formula: C22H29N30
Molecular Weight: 351.5
CAS No: 25973-55-1
Physical Properties:
Item: Standard
Appearance: White or slight yellow powder
Assay:; 99.0%
Volatilizing: 0.50%
Melting Range: 80.0-83.0
Ash: : 0.1.0%
Transmittance 96.0%(425nm), 98.0%(500nm)
Solubility: Soluble in benzene, toluene, styrene, cyclohexane, methyl methacrylate, ethyl acetate, ketones and other organic solvents.
Applications
NH-UV-328 is a high efficient one in enzotriazole ultraviolet absorbers. It is soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethanol and methanol, insoluble in water, The maximum UV absorption peak of NH-UV-328 coule be 345nm. Good compatibility with high-polymer, low-volatile, and it can be used with the general antioxidant for its antioxidant properties.
Widely used in PP, PE, PVC, etc.
Referenced Dosage
0.1-0.5%
Packing&Storage
Cardboard drums with plastic bag in-line, Net weight: 20kg/drum
Need to be stored with sealed container in a dark and dry place

Ultraviolet Absorber
NH-UV-531
Basic Information
Trademark: NH-UV-531
Chemical Name: 2-Hydroxy-4-Octyloxy Benzophenone
Molecular Formula: C21H26O3
Molecular Weight: 326.43
CAS No.: 1843-05-6
Physicochemical Properties
Item: Standard
Appearance: Light yellow needle crystalline powder
Assay:; 99.0%
Volatility:; 0.10%
Melting Point: 47.0-49.0
Ash:; 0.10%
Light Transmittanc; 90.0%(450nm),; 95.0%(500nm)
Solubility: ( 25) ( g/100g solvent): Acetone: 74, Benzen: 72, Methanol: 2,
Ethanol (95%): 2.6, N-heptane: 40, N-hexane: 40.1
Applications
NH-UV-531 is a kind of highly effective anti-aging agent. It can absorb ultraviolet in 270~340nm. It has many advantages, such as light color, nontoxic, good solubility, easily being processed and so on. It protects polymers from UV radiation and helps to preserve the original appearance and physical integrity. It can be widely used for PE, PVC, PP, PS, PC, PU, etc. It was approved to be used for food package in many countries. It's especially recommended for PE, PP, PVC, etc.
Referenced Dosage
0.1-0.5%
Packing&Storage
Cardboard drums with plastic bag in-line, net weight: 25kg/drum.
Need to be stored in sealed container in a dark and dry place