Effect of water on Bombyx mori regenerated silk fibers and its application in modifying their mechanical properties

Plaza Baonza, Gustavo Ramón and Corsini, Paola and Pérez Rigueiro, José and Marsano, Enrico and Guinea Tortuero, Gustavo V. and Elices Calafat, Manuel (2008). Effect of water on Bombyx mori regenerated silk fibers and its application in modifying their mechanical properties. "Journal of Applied Polymer Science", v. 109 (n. 3); pp. 1793-1801. ISSN 0021-8995. https://doi.org/10.1002/app.28288.

Description

Title: Effect of water on Bombyx mori regenerated silk fibers and its application in modifying their mechanical properties
Author/s:
  • Plaza Baonza, Gustavo Ramón
  • Corsini, Paola
  • Pérez Rigueiro, José
  • Marsano, Enrico
  • Guinea Tortuero, Gustavo V.
  • Elices Calafat, Manuel
Item Type: Article
Título de Revista/Publicación: Journal of Applied Polymer Science
Date: August 2008
ISSN: 0021-8995
Volume: 109
Subjects:
Freetext Keywords: proteins; biopolymers; strength; silk; regenerated fibers
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The effect of water on regenerated silkworm silk fibers has been studied and compared with that of water on natural silkworm silk fibers. Regenerated fibers are spun from an N-methylmorpholine-N-oxide (NMMO) fibroin solution through a wet-spinning process, leading to fibers with two distinct tensile behaviors, labeled as brittle and ductile, respectively. Regenerated fibers show a significant contraction when immersed in water. Contraction increases further after drying. In contrast, natural silkworm silk fibers show a negligible contraction when submerged in water. Regenerated fibers tested in water are considerably more compliant than samples tested in air, though their stiffness and tensile strength are significantly reduced. It has been shown that the tensile properties of brittle regenerated fibers can be modified by a wet-stretching process, which consists of deforming the fiber while immersed in water. Regenerated wet-stretched fibers always show a ductile behavior independent from their initial tensile behavior.

More information

Item ID: 2579
DC Identifier: http://oa.upm.es/2579/
OAI Identifier: oai:oa.upm.es:2579
DOI: 10.1002/app.28288
Official URL: http://www3.interscience.wiley.com/journal/119140595/issue
Deposited by: Memoria Investigacion
Deposited on: 21 Apr 2010 09:18
Last Modified: 20 Apr 2016 12:14
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