Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/79946
Title: Bioinspired fabrication of polyurethane/Regenerated silk fibroin composite fibres with tubuliform silk-like flat stress-strain behaviour
Authors: Venkatesan, H 
Hu, JL 
Chen, JM 
Keywords: Polyurethane
Regenerated silk fibroin
Composite fibre
Tubuliform silk
Flat tensile stress-strain curve
Issue Date: 2018
Publisher: Molecular Diversity Preservation International (MDPI)
Source: Polymers, Mar. 2018, v. 10, no. 3, 333, p. 1-14 How to cite?
Journal: Polymers 
Abstract: Tubuliform silk is one of the seven different types of spider silks, which is well known for its unique tensile behaviour with Flat Tensile Stress-Strain (FTSS) curve. It is found that anisotropic microstructure of beta-sheets is responsible for this property. In recent years, bioinspired approaches to engineer fibres supported by modern manufacturing systems have been attracting considerable interest. The present paper aims to investigate a strategy to biomimic the FTSS behaviour of tubuliform silk in synthetic polymer composite fibres by blending polyurethane (PU) and regenerated silk fibroin (RSF) at different ratios. Wet spinning of composite fibres results in the reconstruction of beta-sheets in the synthetic fibre matrix. PU/RSF composite fibre at a ratio of 75/25 produce a tensile curve with FTSS characteristics. Secondary structural changes in RSF and interchain directions of beta-sheets within the fibre are studied using Fourier Transform Infra-red (FTIR) spectroscopy and Transmission Electron Microscopy (TEM), respectively. Interestingly, results of TEM patterns confirm transverse anisotropic properties of RSF beta-sheets. The composite fibres also display tuneable mechanical properties with respect to RSF contents.
URI: http://hdl.handle.net/10397/79946
ISSN: 2073-4360
DOI: 10.3390/polym10030333
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Venkatesan, H., Hu, J. L., & Chen, J. M. (2018). Bioinspired fabrication of polyurethane/Regenerated silk fibroin composite fibres with tubuliform silk-like flat stress-strain behaviour. Polymers, 10(3), 333, 1-14 is available at https://dx.doi.org/10.3390/polym10030333
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Venkatesan_Bioinspired_Fabrication_Polyurethane.pdf4.58 MBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record
PIRA download icon_1.1View/Download Contents

Page view(s)

19
Citations as of May 14, 2019

Download(s)

8
Citations as of May 14, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.