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| Add: 24-29/F, Xinhua Mansion, No. |
| 55 Zhongshan Rd., Nanjing, China |
| Tel: 0086-25-84795748 |
| Fax: 0086-25-84795750 |
| E-mail: sales@polyadditive.com |
| Manager: Vivian Cui (Ms.) |
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UV Stabilizer |
UV-328 |
| Chemical name: |
2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol 【MSDS】
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| Equivalent: |
Tinuvin 328 (Ciba SC) / Cyasorb UV-2337 (Cytec) |
| Structural formula: |
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| Molecular formula: |
C22H29N3O |
| Molecular weight: |
351.49 |
| CAS NO.: |
25973-55-1 |
| Physical properties: |
Appearance:
Light yellow powder
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Melting point:
79DC-87DC
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| Flash point:
Not available
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Specific gravity (g/cm3@20DC):
0.91 |
Solubility@20DC(g/100g solvent) |
| Water
:
Insoluble
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Methyl ethyl ketone
:
24
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Xylene
:
44 |
Ethyl acetate
:
20 |
| Minersal spirits
:
14 |
N-butyl acetate
:
28 |
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| Specifications: |
Appearance |
: Light yellow powder |
Melting point |
: 81℃ min |
Ash |
: 0.05% max |
Volatile |
: 0.5% max |
Transmittance(460nm) |
: 97% min |
Transmittance(500nm) |
: 98% min |
Assay |
: 99% min |
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| Applications: |
UV-328 is a UV absorbent for the UV between 270 nm and 380 nm. It is a high effective light stabilizer for a variety of plastics and other organic substrates. It is recommended as the stabilization of styrene home and copolymers, acrylic polymers, unsaturated polyesters, PVC, polyolefins, polyruethanes polyacetals, polyvinylbutyral, elastomers and adhesives.
The product can be used alone or in combination with other additives such as HALS, antioxidants and other functional stabilizers and additives. The use levels of UV-328 range between 0.10-1.0%, depending on substrate and performance requirements of the final application
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| Packing: |
25kg net fiber drum & 250kg on a pallet
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