Polyvinyl Chloride (PVC)
Polyvinylchloride (PVC) is one of the most used plastic materials in the world because it is economical and highly resistant to chemicals. PVC contains up to 57% chloride and usually comes in a ridged from but it can be compounded with modifiers to make it softer and more flexible. Usage of PVC has grown steadily since its introduction in the early 19th century to become a very widely used plastic in a myriad of uses from films and moldings to extruded pipe. PVC is used for making a variety of products across industries because of its cheap price, easy processing and chemical properties. It is widely used for making construction profiles, medical devices, roofing membranes, credit cards, electric cables, sheets, children’s toys, sewerage pipes, gas pipes, clothing and furniture. PVC has excellent resistance to water and aqueous solutions, but it is attacked severely by stronger solvents such as aromatic hydrocarbons, ketones, esters and chlorinated solvents.