We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Sustainable closed-loop recyclable bioplastics
Summary
Scientists have created a new plant-based plastic (made from wood cellulose) that's just as strong and stretchy as regular fossil-fuel plastic, but it can be washed and reused over 100 times or naturally broken down when discarded. This matters because most plastics either pile up in landfills or shed microplastics into our food, water, and bodies—so a plastic that's both high-performing and truly recyclable or biodegradable could help cut down our long-term exposure to plastic pollution. That said, this is still a lab-scale innovation, and more research is needed before it shows up in everyday products.
Fossil plastics are versatile but generally cause serious pollution due to low recycling rates and non-degradability. Biodegradable bioplastics are eco-friendly, but they fall short in properties like stretchability and toughness. Moreover, the use of cross-linking agents and the need for costly reagents and complex procedures hinder their recyclability. Here, we introduce celluplastic, a sustainable bioplastic constructed from multiscale wood-derived microfibrillated cellulose network, dialcohol cellulose nanorods, and modified cellulose molecular chains. This hierarchical design enables celluplastic to match fossil plastics in terms of strength (>30 MPa), strain (>100%), transparency, and colorlessness, while outperforming other bioplastics. Importantly, celluplastic combines inherent biodegradability with straightforward aqueous closed-loop recyclability, demonstrated for over 100 cycles without substantial loss of performance. Our work establishes a scalable pathway for designing high-performance, circular bioplastics that retain fossil-plastic functionality with sustainable end-of-life solutions. This approach could accelerate the adoption of renewable materials in practical plastic applications.