Plastic (2010-5-8)
Plastic as a Source of Environmental Pollution What is the Solution?
Plastic as a source of environmental pollution what is the solution?
Dr.Kedar Karki
Background:
Plastics are synthetic substances produced by chemical reactions. Almost all plastics are made from petroleum, except a few experimental resins derived from corn and other organic substances.
“Plastics” derived their name from their properties to be molded, cast, extruded or processed into a variety of forms, including solid objects, films and filaments. These properties arise from their molecular structure. Plastics are polymers, very long chain molecules that consist of subunits (monomers) linked together by chemical bonds. The monomers of petrochemical plastics are inorganic materials (such as styrene) and are not biodegradable.