Antioxidant 245 Description
Antioxidant 245 (CAS: 36443-68-2) is an asymmetric hindered phenolic antioxidant with low odor, low volatility, and good compatibility with materials. It is used in the processing and long-term thermal stability improvement of styrene polymers such as HIPS, MBS, ABS, engineering plastics such as POM and PA, and polyurethane such as spandex. At the same time, it is also an effective chain terminator in the PVC polymerization process.
Antioxidant 245 Specification
CAS Number
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36443-68-2
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Chemical Formula
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C34H50O8
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Molecular Weight
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586.75
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Form
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off-white powder
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Density (g/cm3)
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1.14
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Melting Point
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77-81℃
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Boiling Point
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602.88℃
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Solubility
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Chloroform (Slightly), Methanol (Slightly)
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Antioxidant 245 Applications
Antioxidant 245 is used in the processing and long-term thermal stability improvement of styrene polymers such as HIPS, MBS, ABS, engineering plastics such as POM and PA, and polyurethane such as spandex.
Antioxidant 245 Packaging
Our Antioxidant 245 is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Antioxidant 245 FAQs
Q1. What is Antioxidant 245 Powder?
Antioxidant 245 Powder is a high-performance, sterically hindered phenolic antioxidant used to protect polymers and other materials from oxidative degradation. It is widely used to enhance the stability and durability of plastics, coatings, adhesives, and other organic substrates.
Q2. How does Antioxidant 245 work?
Antioxidant 245 functions by scavenging free radicals and decomposing peroxides that form during the oxidative degradation process. This prevents the breakdown of polymer chains and preserves the integrity of the material.
Q3. How is Antioxidant 245 added to materials?
Antioxidant 245 is typically incorporated into polymers during the manufacturing process. It can be added directly to the polymer melt, as a part of a masterbatch, or during compounding. The recommended concentration depends on the specific application and polymer type.