Thesis-1999-Ismail.pdf (8.27 MB)
Structure/property relationships associated with woven glass fibres reinforced polypropylene composites
thesis
posted on 2013-03-08, 14:12 authored by Yob S.B. IsmailThe objective of this work was to examine the effect of thermal history during cooling
from the melt on the degree of crystallinity, morphology and as well as the
relationship between morphology/thermal history and mechanical properties of a
60:40 weight % mixture of woven glass fibres/PP composites. Mechanical properties
studied include low velocity falling weight impact strength, flexural properties
(modulus and strength) and interlaminar shear strength (ILSS). However the main
focus was low velocity impact strength. The composite laminates were manufactured
within a flat mould using a compression moulding press. Three thermal treatments
were employed: isothermal crystallization from the melt in the range 106 to 156°C for
10, 30, 60 and 240 minutes in an oven; non-isothermal crystallization from the melt at
rates varying from 0.67°C/Min. to 62.4°C/Min; and quenching from 190°C to rzooc
and then annealing at 155, 160 and 165°C for one hour. The degree of crystallinity
developed in the matrix polymer was determine using differential scanning
calorimetry (DSC) and the matrix morphology was examined by reflected light
microscope, scanning electron microscope (SEM) and transmission electron
microscope (TEM). TEM was used for quenched and annealed specimens....
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Publisher
© Yob Saed Bin IsmailPublication date
1999Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.EThOS Persistent ID
uk.bl.ethos.289643Language
- en