Physical and tensile properties of raw and treated silk fibres

Ahmed, Mansur and Islam, Md Saiful and Ahsan, Qumrul and Islam, Md Mainul (2010) Physical and tensile properties of raw and treated silk fibres. In: 2nd International Conference on Natural Polymers, Bio-Polymers, Bio-Materials, their Composites, Blends, IPN's and Gels Polyelectrolytes and Gels: Macro to Nano Scales (ICNP - 2010), 24-26 Sept 2010, Kottayam, Kerala, India.


Natural fibres have gained a paramount importance in composite field due to their low densities, biodegradability and other environmental performance. Silk appears to be a promising fibre as a reinforcing agent in composite due to its mechanical properties consisting of a combination of high strength, high toughness, extensibility and compressibility. The main objective of this research is to evaluate the effect of span length on the tensile properties of raw and alkali treated silk fibres. The fibres were characterized using Thermo-Gravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). Tensile testing of raw and alkali treated silk fibres was carried out by varying span length. Newly developed equations were used to correct the Young’s modulus and strain to failure values. It is observed that tensile strength and strain to failure decreased, while Young’s modulus increased with an increase in span length of single fibre. This is because larger span length minimizes the slippage effect more compared to smaller span length. Alkali treated silk fibres had better tensile properties, smoother surface and lower thermal stability compared to raw silk fibres.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author has requested Registered Users Only access to paper.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 06 Oct 2010 23:41
Last Modified: 03 Jul 2013 00:03
Uncontrolled Keywords: silk fibres, raw, alkali treated, TGA, SEM, properties.
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8699 Other Manufacturing > 869999 Manufacturing not elsewhere classified

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