Outline Chapter 2 will provide background and discuss the current state-of-the-art of the composition and manufacture of sandwich panels, as well as of the theories of adhesion in current literature. The instrumentation used in this work is examined and described in Chapter 3. From there on the results of the analytical work are presented in Chapters Chapter 4 details the analysis of the substrates used in the sandwich panels and the effects of each of the standard treatments to achieve the finished coated coils. In Chapter 5 the effects of common surface treatments are reported. Chapter 6 reveals the properties of the foams used in this product. In Chapter 7 analysis of the buried interfaces of the finished product are introduced. Chapter 8 examines the diffusion of components of the foam into the coated coil stock surfaces. Finally in Chapter 9, a study of a panel that displays blistering is presented. The last part of the thesis then concludes the work and makes suggestions with the aim of improving the performance of the final product. Literature Review Introduction As the aim of this investigation to increase the understanding of the nature of adhesion in the sandwich panel and help predict and make suggestions towards an improved product, this chapter provides a background relevant to the current investigation at the time of its initiation. As such it reviews some of the literature relevant to this project. The manufacturing process of sandwich panels is described and the typical components introduced, including a view of the expected chemistry, starting with the steel used in the substrate, the effects of treatment processes from cleaning to coil-coatings and the
Outline Chapter 2 will provide background and discuss the current state-of-the-art of the composition and manufacture of sandwich panels, as well as of the theories of adhesion in current literature. The instrumentation used in this work is examined and described in Chapter 3. From there on the results of the analytical work are presented in Chapters Chapter 4 details the analysis of the substrates used in the sandwich panels and the effects of each of the standard treatments to achieve the finished coated coils. In Chapter 5 the effects of common surface treatments are reported. Chapter 6 reveals the properties of the foams used in this product. In Chapter 7 analysis of the buried interfaces of the finished product are introduced. Chapter 8 examines the diffusion of components of the foam into the coated coil stock surfaces. Finally in Chapter 9, a study of a panel that displays blistering is presented. The last part of the thesis then concludes the work and makes suggestions with the aim of improving the performance of the final product. Literature Review Introduction As the aim of this investigation to increase the understanding of the nature of adhesion in the sandwich panel and help predict and make suggestions towards an improved product, this chapter provides a background relevant to the current investigation at the time of its initiation. As such it reviews some of the literature relevant to this project. The manufacturing process of sandwich panels is described and the typical components introduced, including a view of the expected chemistry, starting with the steel used in the substrate, the effects of treatment processes from cleaning to coil-coatings and the
thesis%20correction%20version.docx