Bio-based adhesives for wet environments inspired by the natural mussel adhesive

Junjie Kang

Research output: Book/ReportPh.D. thesis

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Abstract

Due to the environmental issues associated with synthetic adhesives, considerable research efforts are dedicated to developing bio-based alternatives. While bio-based adhesives are generally more eco-friendly, their performance, particularly in terms of wet adhesion, is often relatively poor. This limitation makes them ineffective under outdoor conditions, highlighting the need for new design ideas.
Mussels offer an inspiration for designing new bio-based adhesives with better wet performance, as they can adhere to various surfaces, even underwater, using a complex protein-based adhesive. It thus suggests that bio-based adhesives have the potential to work effectively in wet environments. As such, researchers have focused on understanding the mechanisms behind mussel adhesion, which are believed to play a key role in their robust adhesion behaviors.
The objective of this PhD thesis is to explore mussel-inspired adhesion mechanisms as a means to design new bio-based adhesives with improved wet adhesion. To achieve this objective, various bio-based ingredients were selected to mimic the basic chemistry of mussel adhesive. Subsequently, these ingredients were combined under optimized conditions to achieve physical properties similar to those of mussel adhesive. The adhesion properties of these mussel-inspired materials were then investigated under wet conditions. The findings of this PhD study suggest that certain bio-based materials, with proper modification, can exhibit effective adhesion in wet environments.
Original languageEnglish
PublisherDTU Chemistry
Number of pages206
Publication statusPublished - 2023

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