Antioxidant
Pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] (Irganox 1010) is a primary hindered phenolic antioxidant providing long-term thermal stabilization for polyolefins, engineering plastics, adhesives, and lubricants. It scavenges peroxy radicals generated during thermo-oxidative degradation, preventing discoloration and loss of mechanical properties. Demonstrates excellent synergy with phosphite co-antioxidants for comprehensive stabilization packages.
Technical Specifications
| purity | ≥ 98% |
| appearance | White crystalline powder |
| ash content | ≤ 0.1% |
| melting point | 110 – 125°C |
| loss on drying | ≤ 0.5% |
Applications
- Polyolefin resins (PE, PP, EVA)
- Engineering thermoplastics (ABS, PA, POM)
- Hot melt adhesives and sealants
- Lubricating oils and greases
- Elastomers and rubber compounds
Key Features
- Highly effective at low dosage levels (0.05–0.5%)
- Low volatility — remains active during long-term thermal aging
- Non-discoloring in most polymer and coating systems
- Excellent synergy with phosphite co-stabilizers
- FDA compliant for food contact packaging applications