How are vinyl,polyester differ from plastic?
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Plastics is a wide genre of materials as is metals. Within this category, there are hundreds of different variations of specific polymer types of which, vinyl and polyester are only two. Vinyl and polyester are plastics.
Polyester is a plastic. It is a condensation product made by the reaction of a monomer that has both an alcohol and acid function. Polyester monomers are usually very short in chain length or they would polymerize to themselves in the polymer manufacturer. Polyvinylchloride, PVC, is a plastic. Sometimes this is called vinyl but that is not an accurate name. Vinyl is an organic functional group, CH2=CH- and one of the more common vinyl products is Vinyl Chloride, often called vinyl chloride monomer or VCM which structurally is CH2=CHCl. VCM is polymerized as an addition polymer to make PVC. A plastic is any synthetic resin. It can be a condensation product or an addition product. Often the plastic, unformulated and in the raw state has limited value if any value. Once properly formulated with stabilizers, plasticizers, and other additives, it has high value.
