Antioxidant 1024 CAS 32687-78-8

Download TDS

CAS:32687-78-8

Molecular Formula:C34H52N2O4

Molecular Weight:552.79

EINECS:251-156-3

Antioxidant 1024 CAS 32687-78-8 is a highly efficient non-polluting antioxidant with excellent performance, soluble in methanol and acetone, slightly soluble in chloroform and ethyl acetate, insoluble in water, with a dual structure of hindered phenol and hydrazine, and has antioxidant and metal deactivation functions. As a metal deactivator, it does not produce color stains, can be used alone or with other general antioxidants, with excellent synergistic effect.

Item	Specification
Melting point	60-67°C
Boiling point	652.6±55.0 °C(Predicted)
Density	1.054±0.06 g/cm3(Predicted)
Acidity coefficient (pKa)	11.10±0.50(Predicted)
LogP	4.8 at 23℃

Antioxidant 1024 is a multifunctional hindered phenolic antioxidant with metal deactivation capability. Unlike conventional antioxidants, it can effectively deactivate residual copper and transition metal ions in polymer systems, making it especially suitable for wire & cable insulation and metal-contact applications.

1. Wire & Cable Insulation Compounds

Antioxidant 1024 is widely used in PE, XLPE, and polyolefin cable insulation materials where copper-induced polymer degradation is a major issue. Trace copper ions from conductors can accelerate oxidation and shorten cable lifespan. Antioxidant 1024 helps suppress catalytic oxidation and improves long-term heat aging stability.

It is particularly effective in:

copper wire insulation
communication cables
automotive wire harnesses
power cable compounds
cross-linked polyethylene cable systems

For high-temperature extrusion stability, it is often combined with Antioxidant 168.

2. Polyamide & Engineering Plastics

The product performs well in nylon (PA), polyacetal (POM), polyurethane, and styrenic copolymers exposed to metal residues during polymerization or compounding. It helps reduce viscosity loss and prevents premature thermal oxidation during processing.

In engineering plastics requiring enhanced heat resistance, Antioxidant 1024 can also be used together with Antioxidant 1098 for improved long-term thermal aging performance.

3. Fuel-Resistant Rubber & Elastomers

Antioxidant 1024 is highly effective in NBR fuel hoses, EPDM seals, elastomers, and automotive rubber parts exposed to oil, gasoline, or metal contact environments. Its excellent extraction resistance helps maintain antioxidant performance even after prolonged exposure to fuels and lubricants.

4. Hot Melt Adhesives & Resin Systems

The product is used in hot melt adhesives and resin compounds where thermal stability and low discoloration are critical. It provides additional protection against metal contamination introduced from manufacturing equipment and fillers.

5. Agricultural Film & Pipe Applications

Antioxidant 1024 is also suitable for agricultural PE films, plastic pipes, and industrial polyolefin products requiring long-term outdoor durability and enhanced stabilization against trace metal residues.

Explore more stabilization additives on the Unisunchem Home Page and browse the Polymer Additives Collection.

Dual-function additive with both antioxidant and metal deactivation performance
Excellent protection against copper-catalyzed polymer degradation
Outstanding extraction resistance in fuels, oils, and aqueous environments
Particularly suitable for wire & cable insulation compounds
Low staining and low discoloration properties
Excellent compatibility with PE, PP, XLPE, PA, EPDM, and elastomers
Helps extend service life of metal-contact polymer systems
Effective under high-temperature extrusion and long-term heat aging conditions
Strong synergistic effect with phenolic and phosphite antioxidants
Reliable industrial supply from Unisunchem

25kg/drum or according to customer requirements.

Q1: Why is Antioxidant 1024 called a metal deactivator?

Antioxidant 1024 can deactivate trace metal ions such as copper residues that accelerate polymer oxidation. This makes it highly effective in wire & cable insulation and polymer systems exposed to metal contact.

Q2: Why is Antioxidant 1024 widely used in cable insulation materials?

Copper conductors can catalyze oxidation in polyethylene and XLPE insulation materials, causing premature aging and embrittlement. Antioxidant 1024 helps inhibit this copper-induced degradation and significantly improves cable durability.

Q3: What is the difference between Antioxidant 1024 and Antioxidant 1010?

Antioxidant 1010 is a traditional hindered phenolic antioxidant focused on long-term thermal oxidation resistance, while Antioxidant 1024 additionally provides metal deactivation capability, making it more suitable for copper-contact polymer systems.

Q4: Is Antioxidant 1024 resistant to oil and fuel extraction?

Yes. Antioxidant 1024 has excellent extraction resistance in fuels, lubricants, and oil-containing environments, which is why it is commonly used in NBR fuel hoses and automotive elastomer applications.

Q5: Which polymers are most suitable for Antioxidant 1024?

Antioxidant 1024 is especially suitable for PE, PP, XLPE, nylon, EPDM, polyurethane, polyacetal, styrenic copolymers, hot melt adhesives, and wire & cable insulation compounds.