Development of innovative additives targeting glazed ceramics

Nabi, Aneesa Nasar (2025). Development of innovative additives targeting glazed ceramics. University of Birmingham. Ph.D.

Preview

Nabi2025PhD.pdf
Text - Accepted Version
Available under License All rights reserved.
Download (44MB) | Preview

Abstract

This thesis investigates the development and application of innovative polymer additives aimed at enhancing anti-fouling properties and overall functionality of glazed ceramic tiles. The research focuses on understanding the behaviour of polyelectrolytes and their interactions at various interfaces, addressing industrial challenges related to improving ceramic surface properties and creating effective anti-fouling coatings.

The study begins with a comprehensive review of polymers and polyelectrolytes, both in solution and at interfaces, exploring key phenomena such as adsorption, desorption, surface modification, and the anti-fouling characteristics of these polymers.

A multi-faceted methodological approach is employed, utilising advanced characterisation techniques such as Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D) for real-time analysis of mass adsorption and rate constants, Atomic Force Microscopy (AFM)
to examine the thickness and adhesion of polymer coatings at the nanoscale, Dynamic Light Scattering (DLS) to assess the size and charge of polymer particles in solution, and Surface Tension Measurements to elucidate interactions between polymers and ceramic surfaces, with
a particular focus on wettability and coating uniformity.

The findings reveal that the architecture of polymers significantly influences their performance. For example, block copolymers form stable, hydrated layers on ceramic surfaces, which are critical for anti-fouling applications. In contrast, random copolymers exhibit varied adsorption behaviours depending on polymer concentration and environmental pH. The research also examines the impact of foulants on polymer performance, showing that certain polymer architectures provide superior resistance to fouling—a feature particularly important in applications such as household toilets, where maintaining clean surfaces is essential.

In conclusion, this work provides a detailed understanding of how innovative polymer additives can enhance the properties of glazed ceramics. The results indicate that by tailoring polymer structures, substantial improvements in the functionality of ceramic coatings can be achieved, with significant implications for industrial applications. Future research directions include optimising polymer architectures for specific applications and exploring further characterisation methods to advance the field.

Type of Work:

Thesis (Doctorates > Ph.D.)

Award Type:

Doctorates > Ph.D.

Supervisor(s):