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Influence of fibre shrinkage and stretching on the mechanical properties of self-reinforced poly(ethylene terephthalate) composite
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. Scania CV, Södertälje, Sweden .ORCID iD: 0000-0001-9909-7620
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-6616-2964
2014 (English)In: Journal of reinforced plastics and composites (Print), ISSN 0731-6844, E-ISSN 1530-7964, Vol. 33, no 17, 1644-1655 p.Article in journal (Refereed) Published
Abstract [en]

Self-reinforced poly(ethylene terephthalate) composite laminates were manufactured from fabric using a hot press. Fabric was either allowed to shrink or exposed to stretching during different phases of the manufacturing process. Composite macrostructure, crimp, was investigated and results showed that shrinkage affects fibre crimp more than stretching does. Mechanical tests showed that shrinkage do not significantly affect mechanical properties while stretching fabric by 10% during heating results in 50% increase in tensile stiffness. The lack of correlation between crimp and mechanical properties indicates that mechanical properties for self-reinforced poly(ethylene terephthalate) composites are dominated by their microstructure, molecular orientation, which may be affected by the manufacturing process.

Place, publisher, year, edition, pages
2014. Vol. 33, no 17, 1644-1655 p.
Keyword [en]
Self-reinforced composite, poly(ethylene terephthalate), mechanical properties, processing, macrostructure
National Category
Polymer Technologies Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-151329DOI: 10.1177/0731684414541018ISI: 000340939600008Scopus ID: 2-s2.0-84906667850OAI: oai:DiVA.org:kth-151329DiVA: diva2:748071
Funder
XPRES - Initiative for excellence in production research
Note

QC 20140918

Available from: 2014-09-18 Created: 2014-09-18 Last updated: 2017-12-05Bibliographically approved

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Jerpdal, LarsÅkermo, Malin

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