描述
UV-328 / Tinuvin 328 / Eversorb 74 CAS 25973-55-1
| 外观 | Light yellow crystalline powder |
| 内容 | ≥99%(HPLC) |
| 熔点 | 79-87℃ |
| 灰烬 | ≤0.1% |
| Volatile | ≤0.5% |
| 透射率 | 460nm≥96%，500nm≥97% |
Application：
1. This product is a high-efficiency ultraviolet absorber, which can effectively absorb ultraviolet light with a wavelength of 270-340 nanometers.
2. The light stabilization performance is similar to UV-326 and UV-327, but this product has good compatibility with resin, low thermal volatilization, and high washing resistance.
3. Mainly used for polyolefin (especially polyethylene), polyester, styrenic polymer, polyamide, polymethyl methacrylate, polycarbonate, elastomer and other polymers.
Suggested addition:
| Polystyrene | Polyethylene | Polyester | Polycarbonate | Polyvinyl chloride |
| 0.2-0.5% | 0.2-0.4% | 0.3-0.5% | 0.15-0.3% | 0.2-0.5% |
存储：
存放在干燥、清洁、通风良好的仓库中。
避免光照和加热，以防氧化。
保护产品在运输过程中不受泄漏、雨淋和日晒的影响。
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