Introduction In high-performance footwear R&D, managing the instantaneous energy of severe impacts is the ultimate challenge. While traditional EVA provides basic cushioning, it often leads to "pressure hotspots" under high intensity. Aybroad’s Impact-Diffusing EVA represents a technological leap from "passive absorption" to "active dispersion," offering ballistic-grade protection for the foot's most vulnerable landing zones.
Core Mechanism: Lateral Energy Dissipation (LED) Technology
The secret lies in its microscopic molecular chain alignment. While standard EVA deforms vertically—transmitting energy directly to the bone—our high-performance EVA possesses exceptional molecular damping properties.
Upon impact, the closed-cell structure doesn't just compress downward; it utilizes internal shear movement to convert vertical kinetic energy into horizontal energy waves. This "Ripple Effect" instantly lowers the peak pressure per unit area, effectively preventing plantar fasciitis and heel spur pain caused by localized overloading.
Aybroad’s Engineering Optimization: Precision Density Grading
Diffusion efficiency depends on the delicate balance between density and the coefficient of restitution. Aybroad’s technical team offers specialized solutions:
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Shock-Shield Inserts: Utilizing precision compression molding, we engineer ultra-high-density diffusing EVA into thin inserts embedded at the calcaneal (heel) center. This ensures that during aggressive jumps, impact force is instantly channeled to the surrounding auxiliary support zones.
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Full-Length Pressure Management: For occupational footwear requiring prolonged weight-bearing, we provide monolithic diffusing EVA solutions. Through Aybroad’s unique hardness gradient control, the insole maintains a soft "step-in" feel while preventing "bottoming out" during heavy use.
Applications & Reliability
Ideal for competitive sports, military training boots, and high-performance orthopedic insoles. Our materials undergo rigorous Drop Weight Impact Testing to ensure the molecular structure remains stable after tens of thousands of cycles, maintaining its ability to diffuse energy without fatigue.