Characteristics of a silk fibre reinforced biodegradable plastic
Article
Article Title | Characteristics of a silk fibre reinforced biodegradable plastic |
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ERA Journal ID | 4883 |
Article Category | Article |
Authors | Ho, Mei-Po (Author), Lau, Kin-Tak (Author), Wang, Hao (Author) and Bhattacharyya, Debes (Author) |
Journal Title | Composites Part B: Engineering |
Journal Citation | 42 (2), pp. 117-122 |
Number of Pages | 6 |
Year | 2011 |
Publisher | Elsevier |
Place of Publication | Oxford, United Kingdom |
ISSN | 1359-8368 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesb.2010.10.007 |
Web Address (URL) | http://www.sciencedirect.com/science/journal/13598368 |
Abstract | Silk fibre is one kind of well recognized animal fibres for bio-medical engineering and surgical operation applications because of its biocompatible and bio-resorbable properties. Recently, the use of silk fibre as reinforcement for some bio-polymers to enhance the stiffnesses of scaffolds and bone fixators has been a hot research topic. However, their mechanical and biodegradable properties have not yet been fully understood by many researchers, scientists and bio-medical engineers although these properties would govern the usefulness of resultant products. In this paper, a study on the mechanical properties and bio-degradability of silk fibre reinforced Poly (lactic-acid) (PLA) composites is conducted. It has been found that the Young’s modulus and flexural modulus of the composites increased with the use of silk fibre reinforcement while their tensile and flexural strengths decreased. This phenomenon is attributed to the disruption of inter- and intra-molecular bonding on the silk fibre with PLA during the mixing process, and consequent reduction of the silk fibre strength. Moreover, bio-degradability tests showed that the hydrophilic properties of the silk may alter the biodegradation properties of the composites compared to that of a pristine PLA sample. |
Keywords | mechanical properties; natural fibre composites; animal fibre; bio-medical; biodegradable plastics; degradability; flexural modulus; flexural strength; hydrophilic properties; intra-molecular bonding; mixing process; poly(lactic acid); resorbable; silk fibres; surgical operation; Young's Modulus silk fibre reinforced; biodegradable plastic |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
320226. Surgery | |
400302. Biomaterials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hong Kong Polytechnic University, China |
Centre of Excellence in Engineered Fibre Composites | |
University of Auckland, New Zealand |
https://research.usq.edu.au/item/q027w/characteristics-of-a-silk-fibre-reinforced-biodegradable-plastic
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