Structure:

Physicochemical properties: This product is white free-flowing powder. It is soluble in benzene, acetone, chloroform, ethyl acetate, methanol, etc. It is insoluble in water. This product has odorless, low volatility, high color fastness and high resistance to extraction.
General Inspection: Project |
Indicators |
Appearance |
White free flowing powder |
Melting point |
76.0°C~79.0°C |
Solubility 10g/100g chloroform |
Clear |
Volatilization |
≤0.50% |
Light transmittance |
425nm |
≥95.0% |
500nm |
≥97.0% |
Purity |
≥98.0% |
Use: This product is a highly efficient asymmetric hindered phenolic antioxidant that protects the material from thermal oxidative degradation during production, processing and end use. Its outstanding features are high anti-oxidation efficiency, low volatility, good oxidation and color resistance, synergistic effect with auxiliary antioxidants (such as thioesters or phosphites), and excellent compatibility with light stabilizers. performance. Antioxidant 245 is very effective in styrenic polymers, especially for HIPS, ABS, MBS, SB and SBR latexes and POM monomers and copolymers. It can also be used as a stabilizer in polyurethanes, polyamides, and heat. Plastic polyester, PVC, etc. In addition to imparting thermal stability to the final product of the polymer, antioxidant 245 has chain termination during PVC polymerization. In addition, this product has no effect on the polymer reaction. When used for high impact polystyrene or polyvinyl chloride, it can be added to the monomer before polymerization. The general dosage is 0.05% to 1.0%.
Packing and storage: It is packed in paper-plastic composite bags lined with plastic bags. The net weight of each bag is 25kg. It can also be designed according to customer requirements. Store in a cool, dry environment as normal chemicals. The recommended storage time is 12 months. |