Document Type

Article

Publication Date

4-17-2024

Abstract

Adhesives are frequently employed in various industries like footwear, electronics, automotive, construction, and furniture. Most of the commonly employed thermoset adhesives contain formaldehyde, such as phenol-formaldehyde (PF) resin and urea-formaldehyde (UF). Although they offer economic benefits, their use has prompted concerns about the production of harmful formaldehyde and phenol. Developing ecologically safe, green, and nontoxic adhesives with superior dry and wet adhesion qualities is extremely important. Barnacles and mussels secrete a hydroxyl-rich dopa, resulting in strong adherence. A biobased adhesive made from magnolol (MAG) and pentaerythritol tetra (3-mercaptopropionate) (PETMP) was created using a thiol-ene click chemistry procedure, inspired by the adhesion mechanism. MP adhesives have excellent binding strength with various substrates like wood, PVC, glass, and metal substrates due to hydrogen bonds created by hydroxyl groups at the interface. They also have a thermosetting network structure. MP's thermosetting network provides superior thermal stability, solvent resistance, and mechanical strength, making it robust in conditions of moisture. To alter the degree of cross-linking in MP, modify the molar ratio of MAG and PETMP. The MP 1 formulation has a high elongation at break (174.27%), making it suitable for use as a flexible adhesive. Furthermore, MAG's natural antibacterial capabilities allow for some antimicrobial and antibacterial adhesion. This article proposes a simple biomimetic technique for using MAG in adhesives.

Download

Share

COinS