Uses of Plastic

"In 1979 the volume of plastics produced in United States surpassed the volume of domestically produced steel".
It clearly shows how much of this polymer is in use today right from the beginning of our day brush till we sleep-mosquito nets...we are surrounded by different kinds of plastics.Plastics possess a wide range of useful properties and are relatively inexpensive to produce.
Plastics are indispensable to our modern way of life and are formed into a variety of products. The word plastic comes from a Greek word-plastikos(meaning to mold or fit for molding) and the Latin word-plasticus(meaning to be capable for molding).
Many people sleep on pillows and mattresses filled with a type of plastic-either cellular polyurethane or polyester. At night people sleep under blankets and bedspreads made of acrylic plastics and in the morning everybody steps out of beds onto polyester and nylon carpets.
The cars we drive, the computers we use, the utensils we cook with, the recreational equipments we play with and even the houses and buildings we live and work in..Are all including important plastic components.
Average car contains almost 136 kg of plastics-merely 12% of the vehicle's overall weight. Telephones, textiles, compact discs, paints, plumbing fixtures, boats and furniture are other domestic products made of plastics.
Plastics are extensively used by many key industries including automobiles, aerospace, construction, packaging and electrical industries. The aerospace industry uses plastic to make strategic military parts for missiles, rockets and aircrafts.
Plastics are also used in specialized fields such as health industry to make medical instruments, dental fillings, optical lenses and biocompatible joints.
Humankind has been using natural plastics from thousands of years. For example. the early Egyptians soaked burial wrappings in natural resins to help preserve the dead. People have been using animal horns and turtle shells for centuries which contain natural resins to make items such as spoons, combs and buttons.
Today scientists can tailor the properties of plastics to numerous design specifications. Modern plastics are used to make products such as artificial joints, contact lenses, space suits and other specialized materials. As plastics have become more versatile, the use of plastics has grown well. By the year 2011; the annual demand for plastics is projected to exceed 500 million tons.
Plastics are lighter than many materials of comparable strength and unlike metals and wood, plastics do not rust or rot. Most plastics can be produced in any color. They can also be manufactured as clear as gas, translucent or opaque. Plastics have a low density than that of metals so they are lighter in weight. Plastics can also be reinforced with glass and other fibers to form incredibly strong materials.
Plastics have some disadvantages also. When burnt, some plastics produce poisonous flumes so disposal of plastics creates a solid waste problem.

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