Silvis Materials Develops Biodegradable Cellulose Adhesives to Tackle Recycling Barriers

Petroleum-based adhesives are ubiquitous, playing a critical role in diverse industries from construction, where they bond wood and drywall, to furniture manufacturing and the application of labels on consumer goods. However, their non-biodegradable nature poses a significant environmental challenge, particularly in recycling processes. Patty Ferreira, MBA '97, CEO and co-founder of Silvis Materials, a company dedicated to addressing this issue, explains that "the labels on a container are held up with petroleum-based glue. And because of that, even though you’re putting the container in the recycle bin, it will not get recycled." This highlights a crucial bottleneck in achieving a circular economy, where materials are reused and recycled effectively.

Silvis Materials is developing fully biodegradable cellulose adhesives as a sustainable alternative. Ferreira's initial exploration into bio-based adhesives commenced in 2014. Her approach involved leveraging cellulose, a naturally abundant polymer, by modifying its existing function as a stabilizer in adhesive emulsions. The objective was to replicate the strong adhesive properties associated with more expensive nanocellulose, a highly refined form of cellulose, using more accessible cellulose sources. This foundational research has evolved significantly.

Today, Silvis Materials has advanced its proprietary formula to enable the creation of adhesives from virtually any type of plant cellulose. This broad applicability ensures a scalable and sustainable supply chain. To facilitate the real-world application and validation of their innovative adhesives, Silvis Materials is actively collaborating with companies in the packaging and construction sectors. These partnerships are being fostered with the assistance of the MIT Startup Exchange (STEX), an initiative designed to connect promising startups with industry partners for testing and commercialization. The company anticipates substantial environmental benefits from its technology. Ferreira expects the new cellulose-based adhesives to cut production emissions by up to 80% compared to conventional fossil-based glues. Furthermore, the manufacturing process for these bio-adhesives is projected to consume approximately half the energy required for the production of traditional petroleum-based adhesives. This innovation represents a significant step towards reducing the environmental footprint of industries reliant on adhesives, promoting greater material recyclability, and contributing to a more sustainable industrial landscape.