Collagenous Bioadhesives

Collagenous Bioadhesives: Structure-Property Correlations and Hygrothermal Ageing

Mosleh, Yasmine (TU Delft Bio-based Structures & Materials)
Gard, W.F. (TU Delft Bio-based Structures & Materials)
Breebaart, Iskander (Rijksmuseum)
van de Kuilen, J.W.G. (TU Delft Bio-based Structures & Materials; Technische Universität München)
Van Duin, Paul (Rijksmuseum)
Poulis, J.A. (TU Delft Adhesion Institute)

2022

Collagen-based bioadhesives, also known as animal glues, are derived from animal parts (e.g. skin, bone, and cartilage). They have been widely used in the production of decorative wood working, paintings, bookbinding, and other historical objects for centuries as well as for their restoration and preservation [1].

Collagen, in which the term (kólla) is derived from the Greek word for glue, is a fibrous structural protein with a hierarchical microstructure at different length scales. Collagen is water insoluble and can be turned into water-soluble gelatine through the denaturation process. Upon denaturation, the triple helix structure in collagen unwinds and turns into random coils giving gelatinous animal glue. Gelatinous animal glue can be dissolved in water and during gelling and subsequent drying, the random protein coils undergo partial renaturation back into triple helices. These triple helices in the adhesive act as physical cross-links leading to a continuous three-dimensional network structure [2]. These microstructural features affect the physical and mechanical performance of the glue at micro and macro scales.

In this study four different adhesives from different animal species both mammalian and fish are investigated. These adhesives are bovine bone, bovine skin, rabbit skin, and fish. For this study, thin films of these adhesives were manufactured using the solution casting method. Physical and mechanical behaviour of the adhesives were characterized using Differential Scanning Calorimetry (DSC), X-ray diffraction (XRD), Bloom strength evaluation, and uniaxial tensile tests.

http://resolver.tudelft.nl/uuid:2199086c-d10c-4208-888c-7915d39065fd

2023-01-06

82-83

6th Bioinspired Materials 2022, 2022-03-21 → 2022-03-24, Kostenz&online, Germany

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

abstract

© 2022 Yasmine Mosleh, W.F. Gard, Iskander Breebaart, J.W.G. van de Kuilen, Paul Van Duin, J.A. Poulis