Abstract
The diversity of paint arises from the properties required of a coating. All ideal properties cannot be met in a single product because the paints are are constrained by the nature of the substrate on which the paint is used. The choice of polymer determines the paint film properties and as such, is the most important factor in the formulation of a paint. In this investigation, poly(vinylchloride) (PVC) copolymer with other principal monomers such as acrylic and polyurethane were studied. In addition to mechanical properties, abrading, adhesion, and scratch resistance were studied. Special attention was focused on the chemical resistance to ethanol and artificial perspiration. PVC copolymerization with acrylic or polyurethane was found to significantly enhance the chemical resistance of the basic binder system. In the free-radical polymerization process of PVC, it improved the physical properties of the paint system in terms of its permeability to acid. This prevents corrosion of aluminum flakes in the metallic paint used for mobile phones.
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