描述
Tinuvin 292 / Light Stabilizer 292
Chemical Name.
Decanedioic acid bis(1,2,2,6,6-pentamethyl-4-piperidine) ester mixtures with 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate
CAS No.:41556-26-7:82919-37-7
Appearance:Colorless to light yellow transparent liquid
主要功能
- UV Degradation Resistance:
- Light Stabilizer 292 effectively absorbs and disperses UV energy, preventing photodegradation and photo-oxidation of polymer materials caused by UV radiation.
- 延长材料的使用寿命，防止褪色、脆化和机械性能损失。
- Free Radical Scavenging:
- As a HALS light stabilizer, it captures free radicals generated by UV radiation and thermal oxidation, interrupting the photo-oxidation and thermal oxidation chain reactions, thereby protecting materials from further damage.
- Thermal Stability:
- Maintains stable performance even under high-temperature conditions, making it suitable for applications requiring heat resistance.
- Low Volatility:
- Exhibits low volatility, making it suitable for high-temperature processing and long-term use.
- 协同效应:
- Can be used in combination with UV absorbers and antioxidants to provide comprehensive light and thermal stabilization.
优势
- 高效率: Provides long-term UV and thermal oxidation protection.
- 兼容性: Compatible with various polymers and additives.
- Eco-Friendliness: Low toxicity, meets environmental requirements.
- Heat Resistance: Stable performance under high temperatures.
- Low Volatility: Suitable for high-temperature processing and long-term use.
使用建议
- 用量:
- 典型用量为 0.1% 至 0.5% 聚合物重量的百分比，具体取决于应用和材料类型。
- 加工温度:
- 适用于常规加工温度，但不应超过其热分解温度（通常高于 250°C）。
- 与其他添加剂的组合:
- Can be used with antioxidants, UV absorbers, and other additives for comprehensive protection.
预防措施
- 存放在阴凉、干燥的地方，避免高温和潮湿。
- 使用防护设备，避免直接接触皮肤和眼睛。
Light Stabilizer 292 is a versatile light stabilizer that significantly enhances the weatherability and service life of materials, making it widely used in industries requiring UV and thermal oxidation protection.
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