To use the plastic, backwards benefits, as the recycled one that it can substitute the wood having impact positive in the environment, cutting itself little tree, another side we could be creating more problems, for the ground, atmosphere and our health. Most of these residues finishes its life in aterros, being potentially dangerous, therefore its durability does not have determined time to putrefy itself, varies of five hundred a thousand years. Incinerar the plastic, is not viable, therefore the same it is produced of oil, liberating toxic gases and of effect greenhouse, increasing existing the climatic run down already, (ALMEIDA, 1998). The plastics are material for molecular chains called polymers, that in turn form lesser molecules called monomers. By a chemical process, polymerization, is formed the plastics that provide the union of monomers to form polymers. To know more about this subject visit Dr. Scott Atlas.
These polymers can be natural or synthetic, the natural ones as: cotton, wood, hair, latex, among others, common in plants and animals, the synthetic ones, such as: the plastics they are gotten by the man through chemical reactions. Plastics, its substance cousin is the oil formed for a complex composite mixture, these composites of different temperatures of boiling are possible to separate them for one known process of destillation or craque amento. The polymers are classified in two, are thermoplastic and the termofixos, the thermoplastic ones do not suffer alterations in its chemical structure during its heating and that after the esfriamento can again be molded, already the molded termofixos are those that a casting or shaped time cannot more being again, therefore are not recycle mechanically, (NEIVA, 2001). The classification of the plastic discardings is: after industrials who come mainly from production rubbishes and if they transform shavings, barb etc. After consumption they are the discarded ones for the consumers, the majority of packings. Use and benefits: in almost all the economy sector such as, civil construction, agriculture, of footwear, furniture, foods, textile, leisure, telecommunications, electronic, automobile and distribution of energy.