Events

Fabrication and Application of Nanoparticles

Date: 23 Feb 2005 - 23 Feb 2005

Venue: Auditorium, Level 3, SIMTech Tower Block, 71 Nanyang Drive

Introduction

Nanoscience and nanotechnologies involve the study and use of materials at an extremely small scale. It exploits the fact that some materials have different properties at this ultra small size from those exhibited at a larger scale. Improved capabilities in controlling matter at the nanoscale hold vast promise for innovation in virtually every industry. Finding ways to control size and morphology of colloids at the nanometre level is an active and rapidly growing field in modern colloid chemistry. Over many years The Bristol Colloid Group has developed an understanding of the application of colloid science, in all industry sectors, through strong contacts with companies.

This half-day seminar, organised by SIMTech, and with contributions from The Bristol Colloid Centre, The School of Materials Engineering, NTU and SIMTech, is designed to give an overview of some applications of colloid science in the rapidly growing area of nanotechnology. Collaborative activities being organised in the UK will be described, along with methods for the preparation of nanoparticles and their possible uses in coating and other applications.

Who should attend

The course should be of interest to academics, and to scientists and engineers working in a variety of industries including paints, coatings and inks, as well as speciality chemicals, agrochemicals, biomedical, electronics and oil field industries.

Seminar overview

An overview of nanotechnology in the UK, particularly within the University of Bristol:- Paul Reynolds has been leading a group at the University of Bristol as part of a UK nanotechnology initiative. This initiative is designed to build a network of nanotechnology nodes, each with different capabilities. (Dr Paul Reynolds, University of Bristol)

Synthesis and stabilisation of metal nanoparticles - a talk discussing the challenges of producing dispersions of metal nanoparticles, routes to their synthesis and methods of stabilisation. (Dr Keith Bean, Bristol Colloid Centre)

Colloidal characterisation and processing of advanced materials: The colloidal method is considered to be one of the most effective and efficient techniques for the processing of fine-grained materials. A stable colloid with well-dispersed powder particles will provide a dense and homogeneous powder compact upon subsequent consolidation using processes such as electrophoretic deposition or tape casting. The presentation covers the colloidal characterisation and processing of several advanced functional materials including ceramics, polymers and their composites. (Prof Ma Jan, SME, NTU)

Effect of fillers on the mechanical properties of coatings: Fillers are widely used in the coating industry for several reasons, such as reducing the overall cost, influencing certain coating properties (e.g. gloss) and imparting some desired functionality (e.g. colour). The presentation focuses on the effect of fillers on mechanical properties of coatings, in particular sol-gel coatings. In this study, the filler size ranges from nanoparticles (approximate size of 0.01 µm) to particles of up to several micrometres. The advantages and limitations of using such particle fillers in enhancing the hardness and scratch resistance of coatings is discussed. (Dr Sandor Nemeth, SIMTech)

Nanocomposites for multifunctional coatings: Nanocomposites are being widely studied in a range of material research fields. With carefully chosen nanoscale fillers, the mechanical as well as physical properties of matrix materials can be markedly enhanced. This presentation will discuss design, fabrication and test of some nanoscale particles and nanotube filled composites used for multifunctional coating applications. (Dr Chen Quan, SIMTech)

Activities in surface technology at SIMTech: An overview of the activities in the Surface Technology Group will be presented (Dr Andrew Soutar, SIMTech)