Year: 2024
Type: article
Abstract: The reuse of multilayered materials, which are held together by structural epoxy adhesives, is a major challenge since the bonded substrates cannot be easily separated for recycling. In this research, we explore a one-pot strategy based on β-amino ester chemistry for the development of modified epoxy adhesives with on-demand debonding potential. For this, a formulation of commercially available acrylate, epoxy and amine compounds is used. The research starts with a systematic study, demonstrating the influence of the different compounds on the thermal and adhesive properties of the materials. Subsequently, the potential for debonding is demonstrated using rheological measurements and tensile tests. The fast, catalyst-free Aza-Michael reaction enables the straightforward preparation of such epoxy-based adhesives, while the reverse reaction allows for debonding at 120 °C. In general, a chemical design is demonstrated for producing an industrially attractive generation of debondable epoxy-based adhesives.
Authors: Tim Maiheu, Erica Laguzzi, Andrew T. Slark, Filip E. Du Prez
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Awards: Magnetic resonance equipment for advanced material research: molecular characterisation of solid, soft, homogeneous and heterogeneous matter for the development of advanced functional materials and chemical catalysis, Circular Thermoset Materials: How to exploit Precision Engineered Macromolecules in their Bottom-up Design?, G2492948467, G2588134388, G434337789, G449221245, G5374731179, G7939529489
OpenAlex ID: W4404182602