Dragonox®-626 is a phosphite antioxidant. As an upgraded product of antioxidant 168, it is characterized by anti-yellowing and high transparency. It is widely used in polypropylene, polyethylene, ABS, polycarbonate and Polyester resin and other materials,it has a good protective effect on the color of the polymer. Normally it is used in combination with phenolic antioxidants such as antioxidant 1010, which can improve the thermal stability of the polymer processing. Antioxidant 626 and phenolic antioxidants are widely used in polymer materials such as PE, PP, PS, polyamide, polycarbonate, and ABS.
Appearance | White powder or grains | |
Melting Point | 170-180℃ | |
Volatiles(80℃) | ≤1% | |
Acidity | ≤1.0 mg KOH/g | |
Free 2,4-di-tert-butyl-phenol | ≤1% | |
Assay | ≥95.0% |