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

Key Functions

1. UV Degradation Resistance:
   • Light Stabilizer 292 effectively absorbs and disperses UV energy, preventing photodegradation and photo-oxidation of polymer materials caused by UV radiation.
   • Extends the service life of materials, preventing discoloration, embrittlement, and loss of mechanical properties.
2. 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.
3. Thermal Stability:
   • Maintains stable performance even under high-temperature conditions, making it suitable for applications requiring heat resistance.
4. Low Volatility:
   • Exhibits low volatility, making it suitable for high-temperature processing and long-term use.
5. Synergistic Effects:
   • Can be used in combination with UV absorbers and antioxidants to provide comprehensive light and thermal stabilization.

优势

• High Efficiency: 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.

Usage Recommendations

1. Dosage:
   • Typical dosage is 0.1% to 0.5% of the polymer weight, depending on the application and material type.
2. Processing Temperature:
   • Suitable for conventional processing temperatures but should not exceed its thermal decomposition temperature (usually above 250°C).
3. Combination with Other Additives:
   • Can be used with antioxidants, UV absorbers, and other additives for comprehensive protection.

预防措施

• Store in a cool, dry place away from high temperatures and moisture.
• Use protective equipment to avoid direct contact with skin and eyes.

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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