PMI foam (Polymethacrylimide foam) is widely and critically applied in the field of high-end sports equipment . With its excellent lightweight and high-strength properties (specific strength up to 500-800 MPa·kg⁻¹·m³, density only 0.03-0.12 g/cm³), outstanding impact resistance, vibration damping performance, and good molding processability, it has become the core material choice for high-performance sports products such as ski boards, surfboards, hockey sticks, golf clubs, table tennis paddles, and racing car components.
In ice and snow sports equipment, the core load-bearing layer and elastic layer of ski boards adopt a composite structure of "PMI foam core + carbon fiber/glass fiber panels" to replace traditional wood or PU foam. It not only achieves an overall weight reduction of 20%-30%, improving athletes' operational flexibility and steering response speed, but also its excellent fatigue resistance and impact resistance can effectively withstand bumps and impacts on the snow track, avoiding board breakage or deformation and ensuring sports safety. Meanwhile, the low water absorption property can prevent performance degradation caused by snow water penetration, extending the service life of the equipment.
For surfboards in water sports, PMI foam is used as the core material in the core structure of the board. The lightweight design allows athletes to easily complete actions such as taking off and turning, reducing physical consumption. Its excellent mechanical stability can ensure that the surfboard maintains structural integrity under wave impact, and its corrosion resistance and moisture-heat resistance are suitable for the marine environment, avoiding erosion of materials by salt spray and water vapor, balancing performance and durability.
In the field of ball sports equipment, the shafts and hitting surfaces of hockey sticks and golf clubs adopt PMI foam composite structures. By precisely controlling the density and thickness of the core material, the elastic modulus of the equipment is optimized, improving the efficiency of hitting force transmission and the accuracy of landing points. The lightweight design reduces the weight of the shaft, reduces swing inertia, and helps athletes achieve faster swing speed and stronger hitting power. The interlayer of the table tennis paddle's base plate incorporates PMI foam, which can reduce weight while ensuring the rigidity of the base plate, improving the feel feedback and rebound speed during hitting, adapting to the needs of different playing styles such as fast attack and loop, and helping athletes exert their technical level.
In racing car components, PMI foam is widely used in racing car body panels, spoilers, chassis diffusers and other parts. By replacing traditional metal materials with composite sandwich structures, it achieves a weight reduction of 40%-60%, significantly reducing vehicle aerodynamic drag and energy consumption, and improving vehicle acceleration performance and handling stability. Its excellent impact resistance and collision energy absorption performance can effectively buffer the impact force in sudden accidents, ensuring the safety of the driver. Meanwhile, the high temperature resistance (long-term 120-150℃) and chemical corrosion resistance can adapt to the harsh environment such as high temperature and oil pollution during racing, ensuring the long-term stable operation of the components.