In sports flooring systems, why does PET sandwich panel have poorer ball rebound performance compared to PVC?

Ball rebound height depends on the coefficient of restitution (COR) of the panel surface upon contact. PET foam has a rigid cellular structure, with a large hysteresis loop area in the stress-strain curve under rapid indentation (high energy dissipation), resulting in a COR of about 0.55; PVC foam, due to its viscoelasticity, allows cell walls to recover quickly upon impact, achieving a COR of 0.75–0.80. The International Basketball Federation requires floor COR ≥0.70, so sports floors often use PVC cores. However, if better shock absorption is needed (e.g., elderly rehabilitation flooring), a lower COR is beneficial, and PET can be used.

Name *

Email *

Message

Tags:

No tags

In sports flooring systems, why does PET sandwich panel have poorer ball rebound performance compared to PVC?

Get in Touch

Navigation

Product

Contact