Aramid in Tire Reinforcement
topic
Tire applications (20-25% of para-aramid): cap ply (0° belt layer above steel belts in high-performance tires reducing centrifugal growth, enabling >300 km/h speeds), bead reinforcement, and carcass ply (some aircraft tires). Aramid content: 0.5-2 kg per passenger tire. Benefits: high modulus maintains tire shape at speed, reduced rolling resistance (1-3% fuel savings), improved handling, and enabling downsizing (low-profile tires).
Role
Aramid enables high-performance and ultra-high-performance tire segment growth (required for >240 km/h speed rating) and contributes to fuel efficiency through reduced rolling resistance, with 60-70% of premium passenger tires using aramid cap ply.
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