Lead collaborating researcher from UniSA, Associate Professor Drew Evans, says the design problem for disposable coffee cups has always been about delivering a product that won’t leak but will still offer opportunities for recycling.
“Regular takeaway cups have relied on a plastic lining, making them difficult or impossible to recycle,” Assoc Prof Evans says.
After being brought to public attention in 2017, there have been multiple lining alternatives appear on the market and working in partnership with UniSA’s Future Industries Institute (FII), Detpak have been exploring the use of these lining in cups .
“Being able to work with Detpak on a sustainability challenge is very rewarding,” Assoc Prof Evans says.
“Our expertise in thin film coatings is helping Detpak to further test innovative sustainable products.”
All of cup lining options available, including compostable bioplastic and those that claim to be ‘plastic free’ are in fact some form of plastic, as currently, a polymer is required to enable the cup to hold liquid.