Issue 13, 2018

Flexural behavior of 3D para-aramid/phenolic/nano (MWCNT) composites

Abstract

In this work, the flexure properties of nanostitched and nanoprepreg three dimensional (3D) para-aramid/phenolic composites were studied. Four types of composite were developed. They were called stitched/nano, stitched, base/nano and base. The flexure strength and modulus of the stitched/nano composites were slightly improved compared to those of the base composites due to the addition of the stitching yarn and multiwall carbon nanotubes (MWCNTs). The flexure failure of the base and base/nano structures was matrix peeling and large delaminated areas, whereas the stitched and stitched/nano composites had warp deformation and no visible matrix/fiber damage. In addition, the delaminated areas were severely restricted. The results showed that introducing the stitching fiber and multiwall carbon nanotubes in the base structure improved its out-of-plane failure properties as a form of restricted delamination and they acted as delamination barriers around the regions. Therefore, stitched/nano p-aramid/phenolic composites could be considered as damage tolerant materials.

Graphical abstract: Flexural behavior of 3D para-aramid/phenolic/nano (MWCNT) composites

Article information

Article type
Paper
Submitted
18 dic. 2017
Accepted
01 feb. 2018
First published
14 feb. 2018
This article is Open Access
Creative Commons BY license

RSC Adv., 2018,8, 7213-7224

Flexural behavior of 3D para-aramid/phenolic/nano (MWCNT) composites

K. Bilisik, G. Erdogan and E. Sapancı, RSC Adv., 2018, 8, 7213 DOI: 10.1039/C7RA13437A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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