Aitken, D.; Burkinshaw, S. M.; Cox, R.; Catherall, J.; Litchfield, R. E.; Price, D. M.; Todd, N. G.; Determination of the glass temperature of wet acrylic fibres using dynamic mechanical analysis. Journal of Applied Polymer Science: Applied Polymer Symposium 47 (1991) 263-269
A method is described for determining the glass transition temperature (Tg) of both dry and wet acrylic filament. The method involves the use of dynamic mechanical analysis and a novel method of mounting the test specimen. The presence of water reduced the Tg of dry acrylic fibre by 20°, thus demonstrating the plasticising action of water upon the polymer.