Next Article in Journal
Influence of Cutting Temperature on the Tensile Strength of a Carbon Fiber-Reinforced Polymer
Previous Article in Journal
Hollow-Core FRP–Concrete–Steel Bridge Columns under Torsional Loading
Article Menu
Issue 4 (December) cover image

Export Article

Open AccessArticle
Fibers 2017, 5(4), 45;

Extruded Monofilament and Multifilament Thermoplastic Stitching Yarns

Engineering Research Institute, Ulster University, Jordanstown, Newtownabbey, Antrim BT37 OQB, UK
Materials Research Institute, Athlone Institute of Technology, Athlone N37 HD68, Ireland
Author to whom correspondence should be addressed.
Received: 1 August 2017 / Revised: 1 September 2017 / Accepted: 29 November 2017 / Published: 5 December 2017
Full-Text   |   PDF [2699 KB, uploaded 5 December 2017]   |  


Carbon fibre reinforced polymer composites offer significant improvement in overall material strength to weight, when compared with metals traditionally used in engineering. As a result, they are replacing metals where overall weight is a significant consideration, such as in the aerospace and automotive industries. However, due to their laminate structure, delamination is a prime concern. Through-thickness stitching has been shown to be a relatively simple method of improving resistance to delamination. In this paper, monofilament and multifilament fibres of a similar overall diameter were characterised and their properties compared for their suitability as stitching yarns. Dissimilar to other published works which rely on commercially available materials, such as polyparaphenylene terephthalamide, criteria were produced on the required properties and two potentially promising polymers were selected for extrusion. It was found that although the multifilament fibres had a greater ultimate tensile strength, they began to yield at a lower force than their monofilament equivalent. View Full-Text
Keywords: extrusion; thermoplastics; stitching extrusion; thermoplastics; stitching

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

McGarrigle, C.; Rodgers, I.; McIlhagger, A.; Harkin-Jones, E.; Major, I.; Devine, D.; Archer, E. Extruded Monofilament and Multifilament Thermoplastic Stitching Yarns. Fibers 2017, 5, 45.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Fibers EISSN 2079-6439 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top