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Plastics is the general common term for a wide range of synthetic or semi synthetic organic solid materials suitable for the manufacture of industrial products.Plastics are typically polymers of high molecular weight,and may contain other substances to improve performance and/or reduce costs. Plastics is one of the few new chemical materials which pose environmental problem. Polyethyelne,polyvinyl chloride,polysterine is largely used in the manufacture of Plastics
A report on the production of carrier bags made fromBenefits of Plastics recycled polytheneThe considerable growth in plasticuse is due to the beneficial concluded that the use ofproperties of plastics. Theseinclude: recycled plastic resulted in•Extreme versatility and ability to be the followingtailored to meet very specific technicalneeds. environmental benefits:•Lighter weight than competing Reduction of energy consumption bymaterials, reducing fuel consumptionduring transportation. two-thirds•Extreme durability. Production of only a third of the sulphur•Resistance to chemicals, water and dioxide and half of the nitrous oxideimpact.•Good safety and hygiene properties for Reduction of water usage by nearly 90%food packaging. Reduction of carbon dioxide generation•Excellent thermal and electricalinsulation properties. by two-and-a-half times•Relatively inexpensive to produce.
A DIFFERENT STUDY CONCLUDED THAT 1.8 TONNES OF OIL ARE SAVED FOR EVERY TONNE OF RECYCLED POLYTHENE PRODUCED.In addition, plastics manufacture requires other resources such as land and water and produceswaste and emissions. The overall environmental impact varies according to the type of plasticand the production method employed.Plastics production also involves the use of potentially harmful chemicals, which are added asstabilisers or colorants. Many of these have not undergone environmental risk assessment andtheir impact on human health and the environment is currently uncertain. An example of this isphthalates, which are used in the manufacture of PVC. PVC has in the past been used in toys foryoung children and there has been concern that phthalates may be released when these toysare sucked (come into contact with saliva). Risk assessments of the effects of phthalates on theenvironment are currently being carried out.The disposal of plastics products also contributes significantly to their environmental impact.Because most plastics are non-degradable, they take a long time to break down, possibly up tohundreds of years - although no-one knows for certain as plastics havent existed for longenough - when they are landfilled. With more and more plastics products, particularly plasticspackaging, being disposed of soon after their purchase, the landfill space required by plasticswaste is a growing concern.Plastic waste, such as plastic bags, often becomes litter. For example, nearly 57% of litter foundon beaches in 2003 was plastic.
Adverse Effect of Plasticson Environment•Plastics pollute beachesand oceans•Plastic Bags litter thelandscape•Plastic Bags kill animals•Plastic Bag are non-biodegradable•Plastics also have anadverse effect on Humanlife.The chemicals which areused to manufacturePlastics are known to causecancer and other diseases.
Reuse and Recycle• Reusing and Recyling Plastics Plastic recycling is the process of recovering scrap or waste plastics and reprocessing the material into useful products, sometimes completely different in form from their original state. For instance, this could mean melting down soft Drink bottles and then casting them as plastic chairs and tables. Typically a plastic is not recycled into the same type of plastic, and products made from recycled plastics are often not recyclable. Reusing Plastic is preferable to recycling as it uses less energy and fewer resources.Long-Life,multi-trip plastics packaging has become more widespread in recent years,replacing less durable and single-trip alternatives so reducing waste.• Challenges When compared to other materials like glass and metal materials, plastic polymers require greater processing to be recycled.Plastics have a low entropy of mixing, which is due to the high molecular weight of their large polymer chains. A macromolecule interacts with its environment along its entire length, so its enthalpy of mixing is large compared to that of an organic molecule with a similar structure. Heating alone is not enough to dissolve such a large molecule; because of this, plastics must often be of nearly identical composition in order to mix efficiently. If some of other plastics get mixed in the others(Unidentical) for recycling, the reclaimed plastic is not recyclable because of the variance in properties and melt temperatures.
What are the initiativethat we can do so that ithelps our environment•Plastic Bags have become the majorpart in the way of life.But if we havethe will we can start reducing their usein small ways•Choose goods with minimalpackaging, and which are packaged ina material that can be recycled orreturned in your area.•Try to reduce the need to throw awayplastics.•Rather than throwing them away, giveplastic toys or containers to childrensscrap stores or playgroups for reuse.•Buy products that are refillable.•Recycling the Plastic Bags you alreadyhave is another good idea.
Although Plastic is very beneficial to our daily life but it ends updestroying the environment in which we live.So we must takeinitiative from today and start reducing the use of plastics assoon as possible.