Question

project report on types of plastics and their uses

Answer 1

Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organics that are malleable and can bemolded into solid objects of diverse shapes. Plastics are typically organic polymers of high molecular mass, but they often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, but many are partially natural.

Answer 2

Plastics are man-made materials. Plastics have taken the place of traditionalmaterials like woods and metals.Plastics differ from other materials largely because of the size of their molecules. Most materials have molecules made up of less than 300 atoms, plastics contain thousands of atoms. We call them Macromolecules.Some plasticsare derived from natural substances such as animals, insects and plants but most are man-made. These are named Synthetic Plastics.Most synthetic plastics come from crude oil but coal and natural gas is also used.When crude oil is refined gasses are given off .The gasses are broken down into Monomers. These are chemical substances consisting of a single molecule. Thousands of these are linked together in a process called Polymerisation to form new compounds calledPolymers.Plastics are "one of the greatest innovations of the millennium" and have certainly proved their reputation to be true; it has been the most used material in the United States since 1976. There are a myriad ways that plastic is and will be used in the years to come. The fact that plastic is lightweight, does not rust or rot, helps lower transportation costs and conserves natural resources is the reason for which plastic has gained this much popularity. Plastics are everywhere and have innumerable uses! Plastics are durable, lightweight, and reusable. Also, used in packaging many goods.