Synthetic Polymers And Their Significance In Surface Engineering

By Author: WWG Engineering Pte Ltd
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Surface engineering is a comprehensive, facilitating activity that calls for meticulous expertise. Comprising of surface modification techniques and processes, producing diverse as well as combined material surface properties to address the challenging requirements, surface coating or surface engineering is practically employed in various industrial sectors and individual clients.

The processes are carried out by applying a protective film of materials or its alloys in order to safeguard the outer surface of a material from getting spoilt by external hazards like rusting, corrosion and other weathering actions that may prove to be disastrous to the material itself. These techniques are mainly based on coating of synthetic polymers, which are nothing but industrially produced elements containing large, interconnected molecules that make a strong but yet flexible, films on the material surfaces. Similarly materials like pigments also constitute surface coatings, which are used in case of materials which require the retaining of colour, glossy finish, opacity, and so on. To enable the easy application of these pigments or ...
... colours, a suitable solvent or solvents or carrier liquids, are incorporated into it in order to facilitate a paintable or applicable liquid medium, thereby providing a host of properties and advantages.

Chemically these polymer-based coatings that are applied on the material surface are considered to be a mixture of composite materials mainly consisting of a pigment or coloured particles which are disseminated in a solution of a suitable polymer. Owing to its chemically active property of resistance and flexibility, which supplements its adhering to the substrate, polymers provide and excellent coating over the materials surface.

Since these polymer based coatings have certain speciality qualities like, durability, glossy nature, and resistance against weathering actions, they make a very good surface coating which is reliable and long lasting. Surface coating is also carried out y one more popular and reliable method, that is powder coating. In this method, the material surface is coated with a shower of pigmented or coloured polymer particles, which are then bonded on to the surface by heating, which thereby forms a continuous thin film which acts as a protective sheet or layer on the material surface. Although reactions may take place throughout the heat induced melting of particles and adhering or fusing, the major aspect of film is the formation of the protective coating.

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