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Download StatisticsOjo, Samuel Olukunle (2017). Effect of surface treatment and recycling on the mechanical properties of e-glass. University of Birmingham. Ph.D.
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Ojo16PhD.pdf
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Abstract
The primary focus of this study was to investigate the effect of removing the binder, by specified method, on the tensile strength of E-glass fibre bundle and composites. The methods investigated for removing the binder from E-glass fibres were: (i) fibre spreading; (ii) acetone-based treatment; and (iii) heat treatment in air and in a vacuum.
In the first phase of the research, the effect of the above mentioned binder removal methods were investigated using the single-bundle tensile test. Binder removal via fibre spreading did not cause any reduction in the properties of E-glass fibre bundles. However, binder removal by acetone extraction led to a decrease of 37% in the tensile strength. The most detrimental effect on the tensile strength was found to be when E-glass was exposed to temperatures in excess of 450 °C. The percentage reduction in tensile strength for E-glass fibre bundle for 450 °C, 550 °C and 650 °C were 60%, 66% and 90% respectively.
In the second phase of the research, E-glass bundles that were subjected to the above-mentioned treatments were used to fabricate single bundle composites. The procedure for manufacturing these composites was developed. It was established that the reduction in the strengths of the E-glass composites after specified treatment could be correlated to the reduction in properties experience by the fibre bundles. Attempts were made to analyse the treated fibres using a range of analytical techniques such as X-ray diffraction, thermographic analysis, differential scanning calorimetry and infrared spectroscopy analysis. Heat treating E-glass fibres in the absence of air was shown to bring about a reduction in the tensile strength by 58% as compared to 78% when the fibres were previously heated in air at 650 °C.
| Type of Work: | Thesis (Doctorates > Ph.D.) | |||||||||
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| Award Type: | Doctorates > Ph.D. | |||||||||
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| College/Faculty: | Colleges (2008 onwards) > College of Engineering & Physical Sciences | |||||||||
| School or Department: | School of Metallurgy and Materials | |||||||||
| Funders: | Engineering and Physical Sciences Research Council, Other | |||||||||
| Other Funders: | The University of Birmingham | |||||||||
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TN Mining engineering. Metallurgy |
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| URI: | http://etheses.bham.ac.uk/id/eprint/7139 |
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