# MECHANICAL PROPERTIES OF SELF-HEALING CARBON FIBER-EPOXY COMPOSITE STITCHED WITH MENDABLE POLYMER FIBER

> Title: MECHANICAL PROPERTIES OF SELF-HEALING CARBON FIBER-EPOXY COMPOSITE STITCHED WITH MENDABLE POLYMER FIBER Page Range: p.329-336 Author(s): Yang T; Du Y; Li Z M; Wang C H File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer...

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Published: 2014-03-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**Title: MECHANICAL PROPERTIES OF SELF-HEALING CARBON FIBER-EPOXY COMPOSITE STITCHED WITH MENDABLE POLYMER FIBER**
 Page Range: p.329-336
 Author(s): Yang T; Du Y; Li Z M; Wang C H
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc22-3&JournalID=102146&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 Journal: Polymers and Polymer Composites
 Issue Year: ppc
 Volume: 22
 Issue No: No. 3

**Abstract**
 Carbon fibre composites are self-healed by advance embedding of repairing agents in the composites. However, the repairing agent will influence the mechanical properties of the carbon fibre composites. In this study, poly(ethylene-co-methacrylic acid) (EMAA) filaments were stitched into carbon fibre-epoxy laminates to create a three-dimensional (3D) self-healing fibre system. Specimens with unmodified and self-healing laminates were manufactured. The mechanical properties of the carbon fibre-epoxy composite stitched with mendable polymer fibre for self-healing and unmodified laminates were compared experimentally. Results from the double cantilever beam test revealed that the stitched EMAA fibres increased the mode I interlaminar fracture toughness of the laminate by ~120%. However, short-beam shear (SBS) strength of the composite laminates with the healing agents was slightly degraded, with a 37% reduction in the average SBS strength. The compressive-after-impact assessment showed that the strength was reduced by 6.6%. C-Scan revealed the 3D inter-connected self-healing EMAA network within the composite laminates. 25 Refs.

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