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P. Senthil Kumar and G. Janet Joshiba
PET is used in the textile industry and another half amount of recycled PET
again enters into the water bottle manufacturing sector.
(2) High-density Polyethylene (HDPE)
The HDPE polymers are one of the important polymers which has vital fundamental application in the market and it is majorly used in milk jugs, laundry
detergents, shampoo bottles, washing and shower soaps. This polymer is colorless in its original form and it can be recycled into any color and shape. After
recycling it finds applications in trashcans, funnels, stumbles, window boxes,
etc.,
(3) Polyvinyl chloride
This polymer is mainly used in food packing sectors as trays, food foils to wrap
and tetra packs.
(4) Low-density polyethylene (LDPE)
This LDPE polymer is mainly used in shopping bags, crushed bottles, highly
resistant sacks, and wrappings. It is the same as HDPE in its chemical form.
(5) Polypropylene (PP)
This polypropylene polymer is also one of the widely used polymers in the
environment. It has several applications in the environment such as furniture,
refrigerated fillings, toys, luggage and lining and the external border of the cars.
(6) Polystyrene
This polystyrene polymer is majorly utilized in the toys, hard packing, refrigerator trays, cosmetic bags, audio cassettes, CD cases, vending cups, and cosmetic
bags.
(7) Other uncoded plastics
Plastic purchaser merchandise not recognized by code numbers are not normally
gathered. These plastics used in a large number of different items basically
don’t fit into the numbering framework that distinguishes plastics utilized by
the consumers.
5 Recycled Polyesters
The recycled polyesters are developed from the used plastic bottles and Polyethylene
terephthalate (PET) [11]. The recycled polyesters were initially launched in 1940s
The recycling of PET bottles is divided into two major categories such as open loop
and closed loop recycling [7]. Recycling is seemed to be the most practical way
to decrease the impact caused by the PET solid waste. It was asserted that in 1994
more than 500 million plastic compartments were changed over 45 million pounds of
polyester filaments for floor covering and home outfitting. The polyester is claimed
to be one of the most recyclable polymers universally. A portion of the items in
which reused polyester is utilized as strands, films, froth, sheeting, food packaging
and water bottles (www.textilemates.com). The garment industry named H&M has
contributed the greatest part in using the waste PET for the textile production. In 2012,
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