1. 🔌 Wires and Cables: Polyolefin insulating materials such as polyethylene (PE) and polypropylene (PP)
Core application. Prevents accelerated aging of insulating materials due to contact with copper conductors, ensuring long-term electrical safety.
2. 🔩 Plastic Products with Metal Inserts: Polypropylene (PP) pipe fittings and parts containing copper inserts
Effectively inhibits the catalytic oxidation of polymers by copper, significantly extending the lifespan of products under high temperature and long-term use.
3. 🛢️ General Polymer Processing: PP, PE, polyurethane, nylon, elastomers (such as EPDM), etc.
Provides basic thermal oxidative stability protection, preventing degradation during processing and storage.
4. 🚗 Special Rubber Products: NBR (nitrile rubber) fuel hoses, gasoline hoses
Excellent resistance to fuel and gasoline extraction, maintaining stable performance even in fuel media.

Detailed Explanation of Each Application Area

• Wires and Cables
This is the most classic and important application of antioxidant 1024. In wires and cables, the polymer insulation layer is in direct contact with the internal copper conductor. Copper ions strongly catalyze the oxidation reaction of the polymer, leading to premature embrittlement and cracking of the insulation layer, causing safety hazards. Antioxidant 1024 can effectively chelate (passivate) these metal ions, blocking their catalytic effect, thereby ensuring the reliability of cables during long-term use.

• Plastic Products with Metal Inserts
A typical modern application is copper-inserted polypropylene (PP) pipe fittings in building water supply and drainage systems. Studies have shown that adding approximately 0.3% of antioxidant 1024 can significantly improve the retention rate of mechanical properties of PP pipe fittings after long-term thermal oxidative aging, and its effect is comparable to that of nickel-plated copper inserts. This is due to its ability to form a stable complex protective layer at the interface between the plastic and copper.