Nanostructured organic-inorganic hybrid for protective surface coating

Research area: Polymer science and nanomaterials
Degree: Honours
Supervisors: Prof Naba Dutta and Prof Namita Roy Choudhury
Aim: To develop multifunctional organic-inorganic hybrid coating

Summary: Polymer based protective coatings are attractive options for outdoor applications due to their excellent properties and unlimited possibilities of tailoring their chemical, physical and processing behaviour to meet the requirements.

Protective coatings guard the substrate by providing a tough protective shield that can lock out destructive elements and keeping it resilient and durable. Polymer based seal/coating thus can provide economical way to improve the appearance of the surface while maintaining the investment. In order to render a polymer as smart protective coating materials for future, they must typically be engineered at a molecular level. This has led to a demand for better polymer material and understanding of the factors that influence the interfacial properties of a coating material.

The development of new chemical structure, creating novel interfaces and new crosslinking mechanism is one of the primary variables in making such novel water-bourne coating/sealers. The goal of this project is to develop water-bourne multifunctional organic-inorganic hybrid coating using simple but novel nanoscience approach. 

This proposal represents a novel concept for designing high stiffness and high toughness polymeric materials containing crosslinkable functional groups as the base material. Nano-structured material engineering approach will be employed to create designed interface to open up the possibility of significant enhancement of the macroscopic properties, which is almost impossible or difficult to achieve by traditional methods.

As the length scale of the component phases approach a few nanometer range; the expected global properties will be predominantly affected by strong interfacial interactions rather than by bulk phase properties. Tailoring the surface structure on a nanometer scale can dramatically alter the macroscopic properties of a coating such as film strength modulus and delamination rate.

The detail characteristics of the coating in nano, micro and macro levels will be evaluated using a wide range of techniques The phase behaviour, flow property, film properties, cure characteristics, barrier properties and mechanical behaviour of the films will be evaluated in detail. Viscoelastic behaviour, films, stability and environmental aging behaviour of the coating will also be evaluated in a view to predict the lifetime of the coating. The structure-property-performance relationship will be established.

Areas of study and research

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