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Antioxidant additives are compounds used in the processing and stabilization of plastics to prevent oxidative degradation. They work by neutralizing free radicals and inhibiting the oxidation process, which can lead to discoloration, loss of mechanical properties, and overall material degradation. These additives are typically incorporated into polymer formulations during the manufacturing process to enhance the longevity and performance of plastic products.
| Chemical composition | Phenolic, phosphite, or amine-based |
| Typical usage levels | 0.1% to 5% by weight |
| Processing temperature range | Up to 250°C |
| Physical form | Powder, granule, or liquid |
| Compatibility | Compatible with a wide range of polymers, including polyolefins and styrenics |
When selecting antioxidant additives, consider the specific polymer type and processing conditions to ensure compatibility and effectiveness. It is important to specify the desired level of protection, as well as any relevant certifications or regulatory compliance needed for your application. Additionally, inquire about the physical form that best suits your manufacturing process and the quantities required for your production needs.
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They are used to prevent oxidative degradation in plastics.
They neutralize free radicals and inhibit the oxidation process.
Common types include phenolic, phosphite, and amine-based antioxidants.
Usage levels typically range from 0.1% to 5% by weight.
They are compatible with a wide range of polymers, but compatibility should be verified.
Most antioxidant additives can withstand processing temperatures up to 250°C.
They are available in powder, granule, or liquid forms.
Many are compliant with industry standards, but specific certifications should be checked.