Self healing biologically inspired Nanoreinforced polymer composite For improved fatigue tolerance And reliability of bioimplants

Gupta, A. and Bharadwaj, L.M. and Deep, Akash and Mathew, A.M. and Mathew, T.L. (2010) Self healing biologically inspired Nanoreinforced polymer composite For improved fatigue tolerance And reliability of bioimplants. International Journal of Engineering and Information Technology, 2 (1). pp. 7-9. ISSN ISSN:0975-5292 (Print) ISSN:0976-0253 (Online)

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Official URL: http://ijeit.org/index_files/vol2no1/SELF%20HEALIN...

Abstract

In this study, a self-healing, multi walled carbon nanotubes (MWNT) nanoreinforced polymer composite is formed which may be used as biomaterial to manufacture bioimplants like artificial blood vessels; or as coating material for metallic implants like pacemakers, artificial hip and knee to avoid corrosion and increase the life of the implant. The self-healing approach employs a releasable healing agent incorporated in a hollow fiber embedded in an epoxy resin system. The generation and filling of the crack is a simultaneous process. The crack propagates through the polymer composite and breaks the hollow fiber which results in the leaking of the liquid healing agent, which fills the crack. The catalyst is pre-coated on the outer surface of the fiber to facilitate the polymerization of the monomer healing agent. Virgin, damaged and healed samples of the nanoreinforced polymer composite are tested proving that the addition of functionalized carbon nanotubes in the healing agent leads to better fracture toughness and tensile strength recovery.

Item Type: Article
Subjects: CSIO > Nano Science and Nano Technology
Divisions: Nano Science and Nano Technology
Depositing User: Ms T Kaur
Date Deposited: 31 Jan 2012 16:20
Last Modified: 10 Apr 2012 17:05
URI: http://csioir.csio.res.in/id/eprint/171

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