A study of the moisture absorption characteristics of vinyl ester polymer and unidirectional glass fibre vinyl ester laminates

James Thomason, Georgios Xypolias

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Abstract

Vinyl esters are increasingly being used as the matrix polymer in fibre-reinforced composites for demanding large applications which experience long-term exposure to moist and wet conditions. This paper presents the results of a study of ageing due to moisture absorption in vinyl ester polymer and glass fibre–vinyl ester laminates. The moisture uptake kinetics of the two neat VE polymers, cured at different conditions, and their glass-reinforced composites has been characterised by gravimetric methods. These studies have been carried out using submersion in water at 23 ◦C and 50 ◦C and exposure to high relative humidity moisture conditions at room temperature. A dynamic mechanical analysis characterisation of the glass transition temperatures of both the aged matrix and the composite is also presented.
Original languageEnglish
Article number214
Number of pages18
JournalJournal of Composites Science
Volume8
Issue number6
DOIs
Publication statusPublished - 7 Jun 2024

Keywords

  • vinyl ester
  • glass fibre
  • composite
  • hydrothermal ageing
  • moisture absorption
  • glass transition temperature

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