Dynamic mechanical properties of fibres

Harry, Arthur A (1965) Dynamic mechanical properties of fibres. PhD thesis, University of Glasgow.

Abstract

The dynamic mechanical properties of rod like polymer specimens, plastics, and rubbers have been studied in some detail during the last decade. Nevertheless, comparatively less information is available on fibres of normal textile counts. This project, therefore, was undertaken with a view to investigating the dynamic mechanical properties of several no rural and synthetic fibres of normal textile counts over a wide range of temperature and/or huiaivlity. For this purpose two experiment techniques have been developed in the Fibre Science laboratory at the University of Strathclyde. One of the experimental techniques is similar to that used by Meredith and for measuring the dynamic bending properties of dry fibres in vacuo over a range of temperature. Certain modifications in the design of the apparatus have been made in order to minimise conduction losses through the fibre moimting system so that in vacuo the temperature recorded by the sensing; element vras as close as possible to the temperature of the fibre. The other experimental technique is similar to that employed by 75 Yoshino and Takayanagi for measuring the dynamic tensile properties of films and monofilaments. To make dynamic tensile measurements possible on fibres of rurmcl textile corats end fibres from tyre cords over a wide range of tempereture and/or humidity the apparatus was designed in the laboratory and made in the work show nitb finer strain gauge systems and other necessary accessories, A detailed description of the apparatus and working procedures have been given in the thesis. Measurements were carried out on several fibres like wool, silk, Fibrolane, ramie, Portisan, viscose rayon, acetate, Tricel, Acrilan 16, Orion, three types of polypropylene, eight types of nylon 66, Terylene, Dacron and finally three types of polyblend fibres. The results are discussed in the light of the information available to the dynamic mechanical properties, IMI spectroscopy and infra-red spectroscopy on high polymers. Optical, physical and tensile properties of some of the synthetic fibres have also been studied to find the correlation of these properties with the observed dynamic mechanical piroperties. Finally the effect of heat setting of Acrilan 16, nylon 06 type 900 and Terylene on to optical, physical and mechanical properties of these fibres have been studied.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Additional Information: Adviser: R Meredith
• Keywords: Mechanical engineering, Polymer chemistry
• Date of Award: 1965
• Depositing User: Enlighten Team
• Unique ID: glathesis:1965-72821
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 11 Jun 2019 11:06
• Last Modified: 11 Jun 2019 11:06
• URI: https://theses.gla.ac.uk/id/eprint/72821