Polymaleimide PMI-60 is a polymaleimide resin, also referred to as a maleimide oligomer or polymaleimide. It serves as a high-performance thermal crosslinking agent for rubbers, offering exceptional properties such as high-temperature resistance, moisture resistance, high modulus, and high strength. Moreover, it overcomes the drawbacks of traditional bismaleimide (BMI) resins, including brittleness, poor compatibility, limited solubility, and challenging processability.

As an upgraded alternative to bismaleimide, PMI-60 finds applications across multiple industries, including:

• Tire manufacturing

• IC packaging

• Aerospace heat-resistant components

• Thermoplastic elastomers

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  PMI-60’s reactive double bonds can copolymerize with olefinic double bonds, forming high-molecular-weight crosslinked networks.

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Applications

1. Tire Manufacturing

PMI-60 enhances carbon black dispersion and exhibits high adsorption affinity for silica, making it a critical component for run-flat tires.

Key Benefits:

• Extended fatigue life & durability – Improves tire longevity.

• High-temperature rigidity – Maintains stability under extreme heat.

• Processing performance – Slightly extended scorch time; Mooney viscosity variation within ±5.

• Mechanical properties – Increases hardness & modulus while retaining tensile strength.

• Metal adhesion – Strengthens bonding between rubber and steel cords/other metal components.

• Fatigue resistance – Reduces crack propagation and mechanical fatigue failure.

• Handling performance – Enhances base compound handling without compromising other properties.

2. Aerospace & High-Temperature Structural Materials

Due to its superior thermal stability and mechanical performance, PMI resin is widely used in:

• Aerospace engine components

• High-temperature structural materials

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3. Electronic Packaging

• High-temperature applications – Suitable for extreme thermal environments (e.g., high-power electrical components).

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  High-reliability electronics – Ensures long-term stability in demanding electronic systems.

Advantages Over Bismaleimide (BMI) Resins

✔ Better toughness – Reduces brittleness.
✔ Improved compatibility – Easier to blend with polymers.
✔ Enhanced processability – Better solubility & molding performance.
✔ Higher thermal stability – Performs reliably under extreme conditions.

PMI-60 represents a next-generation solution for industries requiring durability, heat resistance, and mechanical strength.