Research Overview

Biodegradable polymers are increasingly adopted in many applications and industries to replace crude-derived polymers. Currently, the application of biodegradable polymers as binders, sealants, and adhesives is gaining traction, with pressure sensitive adhesives (PSA) being a hot area of interest. Healthcare, FMCG, and packaging are the top areas of interest for PSA adoption. Biodegradable polymers are used as PSA in flexible packaging of food, as cosmetic glues and as seed coatings.

The need for biodegradable PSAs in wound care is significant as most adhesive solutions available currently are non-biodegradable or can potentially cause allergies. One of the most common candidates currently used as a tissue sealant is cyanoacrylate, which is non-biodegradable. The US Food and Drug Administration (FDA) has issued guidance to update its policy regarding the use of animal-derived materials in medical patches and skin formats. Therefore, R&D toward plant-derived biodegradable PSA, naturally inspired polymers, and integrating biodegradability in acrylates and polyurethanes has increased. Apart from replacing animal-derived polymers as adhesives, the drive toward a global circular economy contributes to the reduction in the use of fossil resources and greenhouse gas emissions propelling opportunities for biodegradable PSAs. Additionally, certain properties such as wettability, polarity, cohesion strength, and tack can make biodegradable PSA extremely attractive to end users.

The packaging industry is shifting focus from using synthetic petroleum-derived polymers, which may eventually end up as microplastics to compostable PSA adhesives that break into carbon dioxide and nutrients. These factors push consumers and brand owners to be ever-more conscious about the environment. Many companies are trying to adopt biodegradable materials to design labels and tapes for packaging.