Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

The influence of thermo-oxidative degredation on the measured interface strength of glass fibre-polypropylene

Yang, Liu and Thomason, James and Zhu, W.Z. (2011) The influence of thermo-oxidative degredation on the measured interface strength of glass fibre-polypropylene. Composites Part A: Applied Science and Manufacturing, 42 (10). pp. 1293-1300. ISSN 1359-835X

[img] Microsoft Word
Thomason_JL_Pure_The_influence_of_thermo_oxidative_degredation_on_the_measured_interface_strength_of_glass_fibre_polypropylene_May_2011.doc - Preprint

Download (426kB)

Abstract

It has previously been found that thermal-oxidative degradation of the matrix can strongly affect the apparent interfacial shear strength (IFSS) in glass fibre-polypropylene (GF-PP) measured using the microbond method. In this work, different approaches were employed to further investigate this phenomenon. Hot-stage microscopy was used to establish a profile for dimensional loss of molten PP microdroplets during heat treatment. Under a given thermal load this reduction was found to be related to the initial droplet dimensions. A nanoindentation test was employed to directly probe the mechanical properties of the PP microdroplets, which also exhibited strong dimensional dependence in terms of property deterioration caused by the degradation. Characterisation of thermal mechanical properties and crystallinity was carried out on macroscopic PP samples to assist in elucidating how the polymer degradation affected the measured IFSS. Comparison of the degraded and non-degraded PP microbond samples for IFSS clearly showed the effect of thermal-oxidative degradation on adhesion.