SI Group Antioxidant AT-626 is a high-molecular-weight polyphenolic antioxidant powder offering superior polymer protection. Its unique molecular structure provides excellent oxidation resistance and extraction stability, making it ideal for demanding polymer applications requiring long-term thermal and color stability.
Molecular Shield - High MW structure for lasting protection
Thermal Defender - Maintains stability at elevated temperatures
Color Guardian - Prevents light/heat-induced discoloration
Extraction Resistant - Excellent retention in polymer matrices
Universal Performer - Broad polymer compatibility
Engineering Plastics - Polyamide automotive components
Packaging Materials - PP food containers & PS disposables
Durable Rubber - Synthetic rubber industrial belts
High-Temp Lubricants - Industrial gear oils
Protective Coatings - Metal surface treatments
Parameter | Value |
Appearance | White powder |
Molecular Weight | 1178 |
Melting Point Range | 110 - 125℃ |
Solubility in Water | Insoluble |
Solubility in Ethanol | Slightly soluble |
Solubility in Benzene, Acetone, Esters | Soluble |
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