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One-step amino-functionalization of milled carbon fibre for enhancement of thermo-physical properties of epoxy composites

Zabihi, Omid, Ahmadi, Motjaba, Shafei, Sajjad, Seraji, Seyed Mohsen, Oroumei, Azam and Naebe, Minoo 2016, One-step amino-functionalization of milled carbon fibre for enhancement of thermo-physical properties of epoxy composites, Composites part A: applied science and manufacturing, vol. 88, pp. 243-252, doi: 10.1016/j.compositesa.2016.06.005.

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Title One-step amino-functionalization of milled carbon fibre for enhancement of thermo-physical properties of epoxy composites
Author(s) Zabihi, Omid
Ahmadi, Motjaba
Shafei, Sajjad
Seraji, Seyed Mohsen
Oroumei, Azam
Naebe, Minoo
Journal name Composites part A: applied science and manufacturing
Volume number 88
Start page 243
End page 252
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-09
ISSN 1359-835X
1878-5840
Keyword(s) carbon fibres
polymer-matrix composites (PMCs)
interface/interphase
thermal properties
Summary Development of new chemical approaches for preparation of engineered carbon-based fillers is critical for high-performance applications. Herein, an efficient method for covalent functionalization of polyacrylonitrile-based carbon fibre through azo radical addition under mild condition is demonstrated. In this way, isobutyronitrile radicals in situ produced from thermal decomposition of 2,2′-azobisisobutyronitrile (AIBN), were covalently grafted on milled carbon fibre (MCF) surface, assisted by microwave irradiation, as evidenced by FTIR, Raman, and TGA analysis. The grafted isobutyronitriles on MCF surface (n-MCF) were applied for further MCF amino-functionalization (a-MCF) via nucleophilic reaction of an amine-rich compound. Then, both pure MCF and a-MCF were incorporated into epoxy matrix; and its curing process and thermo-physical properties were investigated using DSC, rheometry, DMA, TGA, and flexural analysis. The Tg and flexural strength of epoxy/a-MCF composites, compared to epoxy/MCF, increased by ∼3.5% and ∼10.2%, resulting from good adhesion between a-MCF and epoxy matrix which confirmed by SEM observations.
Language eng
DOI 10.1016/j.compositesa.2016.06.005
Field of Research 100708 Nanomaterials
0912 Materials Engineering
0913 Mechanical Engineering
0901 Aerospace Engineering
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085083

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Tue, 26 Jul 2016, 09:44:16 EST

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