Year: 2016
Type: dissertation
Abstract: The behaviour of filled elastomer materials is of practical importance in many fields of engineering science.The exact mechanisms that result in increases in the physical behaviour such as the modulus, strength, damping or toughness of the resulting composite materials is still being widely debated in the academic literature.In this work, a new and novel approach has been developed to study the reinforcing mechanisms of such composite systems using dielectric spectroscopic measurements of the filled elastomer materials.The materials used are mostly Natural Rubber (NR) filled with either carbon black (CB) or silica.Initially broadband dielectric spectroscopy (ranging from around 0.1 Hz to 0.3 THz) on NR/CB composites was developed using a wide range of different technologies that included impedance measurements, microwave testing and quasi-optical free space measurements.The carbon black makes a large contribution to the permittivity measured using the impedance method as a consequence of filler percolation effects.I would like to thank Professor James Busfield for his supervision
Author: Menglong Huang
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2565967261