1. Loss of compressive buffering: Without air bubbles, the foam's ability to absorb compressive forces is reduced. As a result, the material becomes more prone to deformation and less able to recover its original shape.
2. Increased stress concentration: Without the air bubbles to distribute stresses, the solid matrix of the foam bears the full load of external forces. This can lead to increased stress concentrations, making the material more susceptible to cracking or breaking.
3. Reduced elasticity: The loss of air bubbles reduces the foam's elasticity, causing it to become stiffer and less able to stretch or deform.