A thermomechanical study of elastomeric collagen-based fibers in the wet state

Fernando G. Torres, Omar P. Troncoso, Valeria Ruiz

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

2 Citas (Scopus)


Mussel byssus is a biopolymer fiber that allows byssus to attach to rocks. The authors have used mussel byssus from Aulacomya ater to study the mechanical behavior of hydrated byssus and the influence of temperature on such behavior. The mechanical properties of byssal fibers were studied by means of uniaxial tensile tests carried out with samples immersed in water at five different temperatures. Thermal analysis was used to assess the thermal transitions of the threads and the influence of the water content on their thermal behavior. The authors found that the Young's modulus of threads is determined by the temperature at which the test is performed. Samples tested at 40, 55 and 70°C exhibited higher modulus than the samples tested at 10 and 25°C. By contrast, no dependence with the temperature of the test was found for the ultimate tensile strength and maximum strain. A peak associated to thermal denaturation of the collagen present in mussel byssus was observed in the differential scanning calorimetry (DSC) tests. A second peak related to the thermal degradation of the samples was also found. The tensile tests results have confirmed the entropic nature of the deformation in mussel byssus, whereas DSC tests showed that thermal transitions did not depend on water content.

Idioma originalInglés
Páginas (desde-hasta)93-97
Número de páginas5
PublicaciónBioinspired, Biomimetic and Nanobiomaterials
EstadoPublicada - jun. 2013


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