Yoga mat-like foam able to lock in oil, protect groundwater: UW study

A team of Waterloo-based researchers has found a way to not only tackle oil spills, but also protect groundwater in the process.

It is through the use of a polymer foam, known as a tri-block polymer styrene-ethylene-butylene-styrene (SEBS).

The foam has the same spongey texture as a yoga mat, and can absorb more than eight times its weight in oil. Once the oil is absorbed, the foam turns into a gel-like substance.

“The current technology for oil capture is lagging,” Tizazu Mekonnen, a professor at Waterloo’s Department of Chemical Engineering and lead researcher. said.

“Preserving our environment is crucial, which is why developing advanced technologies like this polymer is essential for remediating future groundwater contaminants that involve oil.”

Mekonnen and the Waterloo-based team has been working alongside industry partner Albarrie Canada.

The team boasts the foam as being lightweight and easy to transport. They add any oil locked in, doesn’t go to waste, and can be used again.

An example of what the polymer foam developed by Waterloo Chemical Engineering professor Tizazu Mekonnen looks like when it comes in contact with oil. Photo: University of Waterloo

“This innovation has the potential to protect both marine and terrestrial ecosystems, ensuring a cleaner environment for wildlife and humans alike. The impact of this polymer extends beyond immediate spill response, offering a sustainable solution for long-term environmental remediation,” said Mekonnen.

At this point, the team is hopeful they can test the product on a larger scale.

The study, Fabrication of Triblock Elastomer Foams and Gelation Studies for Oil Spill Remediation, was published in Macromolecular Rapid Communications.