Microwave sintering and characterization of polypropylene/multi-walled carbon nanotube/hydroxyapatite composites

Chen, Ling and Tang, Chak Yin and Ku, Harry Siu-Lung and Tsui, Chi Pong and Chen, Xu (2014) Microwave sintering and characterization of polypropylene/multi-walled carbon nanotube/hydroxyapatite composites. Composites Part B: Engineering , 56. pp. 504-511. ISSN 1359-8368

Abstract

Low dielectric property of polypropylene (PP) is the main barrier to microwave sintering of PP. In this study, 1 wt% of multi-walled carbon nanotubes (MWCNTs) were incorporated into the PP as the microwave susceptors, together with different amounts (0, 5, 15, and 30 wt%) of hydroxyapatite (HA) to produce PP/MWCNT/HA biocomposites for bone tissue engineering by microwave sintering. A reduction of
fabrication time (within 1 min) was achieved and the sintering time decreased with an increase of the HA content. The existence and homogeneous distribution of the HA in the sintered composites were confirmed by X-ray diffraction and back scattered scanning electron microscopy, respectively. Microstructures of these composites were examined and thermal analyses were carried out. The microwave sintering technique developed in this study can be used as an alternative to conventional polymer processing methods for fabrication of microwave transparent PP based composites.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 Published by Elsevier Ltd. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 03 Oct 2013 23:17
Last Modified: 01 Jul 2016 03:47
Uncontrolled Keywords: polymer-matrix composites (PMCs); microstructures; thermal analysis; sintering
Fields of Research : 09 Engineering > 0903 Biomedical Engineering > 090304 Medical Devices
10 Technology > 1007 Nanotechnology > 100703 Nanobiotechnology
09 Engineering > 0903 Biomedical Engineering > 090301 Biomaterials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.compositesb.2013.08.005
URI: http://eprints.usq.edu.au/id/eprint/24123

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