Large-scale extrusion of auxetic polypropylene fibre

ALDERSON, Kim, NAZARÉ, Shonali and ALDERSON, Andrew (2016). Large-scale extrusion of auxetic polypropylene fibre. Physica status solidi b, 253 (7), 1279-1287.

[img] PDF
Alderson Large-scale extrusion of auxetic polypropylene fibre.pdf - Accepted Version
Restricted to Repository staff only until 12 May 2017.
Available under License All rights reserved.

Download (746kB) | Contact the author
[img] PDF (Acceptance email)
Alderson 12437.pdf - Other
Restricted to Repository staff only

Download (93kB) | Contact the author
Official URL:
Link to published version:: 10.1002/pssb.201600079


Auxetic polyproplyene fibres have been produced on a large-scale industrial extruder for the first time. A first batch of tests identified a coarse processing window which was then more closely defined by subsequent tests. The effects of barrel temperature, screw speed, take-up speed and quenching (through the parameters of air gap and bath temperature) on the Poisson’s ratio and Young’s modulus of the fibres were examined. It was found that a temperature of 200ºC, screw speed of 12.5rpm and take-up speed of either 1.5 or 3.5rpm produced fibres with a high degree of auxeticity up to 5% strain – significantly increasing the auxetic strain range previously reported for lab-scale extrusions at lower extruder temperatures. Quenching with a water bath reduced the auxeticity, so was not employed as a processing parameter. Keywords: auxetic, negative Poisson’s ratio, melt extrusion, polypropylene fibre

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre
Identification Number: 10.1002/pssb.201600079
Depositing User: Andrew Alderson
Date Deposited: 17 Jun 2016 10:52
Last Modified: 24 Oct 2016 23:58

Actions (login required)

View Item View Item


Downloads per month over past year

View more statistics