(UV-328) 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol CAS 25973-55-1
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Introduction to UV-328 CAS 25973-55-1
(UV-328) 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol CAS 25973-55-1 is a high efficient UV absorber, which can effectively absorb UV light of 270-340 nanometers.
The light stabilization efficiency is similar to UV-326 and UV-327, but it has good compatibility with resin, low heat volatility, and high washing resistance.
UV-328 CAS 25973-55-1 Specification
Appearance | Light yellow powder or cylindrical granule |
Content | ≥99%(HPLC) |
Melting point | 79-87 ℃ |
Ash | ≤0.1% |
Volatility | ≤0.5% |
Transmittance | 460 nm≥96% 500 nm≥97% |
UV-328 CAS 25973-55-1 Applications
It is suitable for polyolefins (especially polyethylene), polyesters, styrenic polymers, polyamides, polymethyl methacrylate, polycarbonate, elastomers and other polymers.
UV-328 CAS 25973-55-1 Suggested Addition Amount
Polystyrene | Polyethylene | Polyesters | Polyvinyl chloride (PVC) | Polycarbonate |
0.2-0.5 % | 0.2-0.4% | 0.3-0.5% | 0.2-0.5% | 0.15-0.3% |
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CAS 25973-55-1
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2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol
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