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Ever wondered how much "nature" your lifestyle requires?
You're about to find out. |
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Plastic
Classification of Plastics
There are almost over 60 different kinds of plastics used in
the production of everyday items that we used eventually dispose
off. Of these sixty, six are used extensively enough to be classified
as main plastics with the remaining grouped into a seventh category.
The plastics industry has devised a coding system for the seven
categories which is usually used to mark the appropriate type
of plastic. Those coding is known as the recycling code for
polymers.
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PET |
Polyethylene
terephthalate
Accounts of 20 - 30% of the bottle market and also
is the most commonly recycled plastic in Malaysia. PET
formed in a variety of food stuff package and is used
mainly for its clarity, toughiness and ability to resist
permeation by carbon dioxide. Some examples of products
possible from recycled PET are carpets, auto parts,
geotextiles, fizzy drink bottles and oven-ready meal
trays. |
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HDPE |
High-density
polyethylene
Accounts for 50 - 60% of the bottle market. HDPE
is used to make milk jugs, milk bottle, washing-up liquids
bottle, butter tubs, detergent bottles, motor oil containers
and bleach bottle to name a few. Recycled HDPE can be
used to make flowerpots, trash cans, traffic borders,
industrial pallets and other related items.
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PVC |
Polyvinyl
chloride
Accounts for 5 - 10% of all plastic packaging. It
is used to make bottles (water, shampoo, cooking oil),
food trays, cling firm, mineral water, shampoo, garden
hoses, flooring, credit cards, shower curtains and many
more related items. The main problem with PVCs is that
when it is incinerated it contributes to the production
of HCl. Recycled PVC is used to make drainage pipes,
handrails and sewer pipes among others. |
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LDPE |
Low
density polyethylene
Accounts for 5 - 10% of all plastic produced. Its uses
include shrink wrap packaging, carrier bags, bin liners,
plastic sandwich bag, and clothing wrap. Recycled LDPE
can be used to make almost everything that the virgin
resin is used for. |
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PP |
Polypropylene
Accounts for 5 - 10% of all plastic produced. It is
used to make plastic bottle caps, margarine tubs, microwaveable
meal trays, plastic lids, drinking straws, broom fibers,
rope, twine, yogurt containers and carpets. Recycled
PP can be used to produce or has the potential to be
used for auto parts, bird feeders and battery cases.
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PS |
Polystyrene
Accounts of 5 - 10% of all plastic produced. It
is used to make stryroform cups, egg cartons, fast food
packing, yoghurt pots, foam meat or fish trays, hamburger
boxes and egg cartons, vending cups, plastic cutlery,
protective packaging for electronic goods and toys.
Recycled PS can be used to make light switch plates,
note pad holders, cassette tape cases, reusable cafeteria
trays and waste baskets. |
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OTHER |
Any
other plastics that do not fall into any of the
above categories.
An example is melamine, which is often used in plastic
plates and cups.
Account for 5 - 10% of all plastic produced. There are
frequently found as composite plastics. These plastics
are high performance plastics. Recycling is often limited
because of the inability to blend the plastics. Their
uses may be for landscaping lumber and picnic benches.
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