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Thermal Stability in Nylon with NAUGARD™ 445 Antioxidant
Enhance Thermal Stability in Nylon with NAUGARD™ 445 Antioxidant
As polyamide compounders continue to push performance limits in high-temperature and high-shear processing environments, the need for thermal protection becomes increasingly critical.
NAUGARD™ 445 is a high-performance aromatic amine antioxidant from SI Group that provides a solution to extend the stability and durability of nylon (PA6, PA66, and blends) across demanding automotive, electrical, and industrial applications.
NAUGARD™ 445 is a nondiscoloring, solid aromatic amine antioxidant engineered to protect polymers during and after processing. In nylon systems, where processing temperatures often exceed 280°C, oxidative degradation can lead to brittleness, discoloration, and performance failure.
High-Temperature Protection for Polyamide Compounds
NAUGARD™ 445 is a nondiscoloring, solid aromatic amine antioxidant engineered to protect polymers during and after processing. In nylon systems, where processing temperatures often exceed 280°C, oxidative degradation can lead to brittleness, discoloration, and performance failure.
Key Benefits in Nylon Applications
- Excellent heat stabilization during melt compounding
- Minimized discoloration for enhanced appearance and shelf life
- Improved oxidative stability versus common competitive grades
- FDA clearance for indirect food contact applications (21 CFR 178.2010, 175.105, 177.1590)
Synergy with Phenolics and Phosphites
While effective as a standalone antioxidant, NAUGARD™ 445 exhibits strong synergistic benefits when combined with phenolic- or phosphite-based stabilizers, enhancing overall system performance in both virgin and recycled polyamide formulations. This compatibility makes it a versatile component in multifunctional stabilization packages tailored for specific application needs, such as electrical connectors, under-the-hood parts, and high-load bearing components.
- Glass-filled PA6/66 compounds
- Halogen-free flame retardant (HFFR) nylons
- Recycled polyamide blends and regrind stabilization
- Electrical connectors and housings
- Automotive under-hood components
Conclusion
ChemPoint offers technical formulation support, sample fulfillment, and supply chain flexibility for NAUGARD™ 445. Whether you are optimizing an existing nylon formulation or building a new high-performance compound, our team is here to help you integrate the right stabilization strategy.
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