“life in plastic… it’s fantastic”
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“Life in plastic… it’s Fantastic”. Polymers are large molecules composed of many similar smaller molecules linked together. The individual smaller molecules are called monomers. When small organic molecules are joined together, giant molecules are produced (aka macromolecules). - PowerPoint PPT PresentationTRANSCRIPT
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Polymers are large molecules composed of many similar smaller molecules linked
together. The individual smaller molecules are called
monomers. When small organic molecules are joined
together, giant molecules are produced (aka macromolecules)
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Biodegradable – able to rot naturally garden and kitchen waste like potato skins and
banana skins. Newspaper is also biodegradable! Nonbiodegradable – unable to rot naturally
Plastic bags, synthetics, plastic bottles, tin cans, and computer hardware
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There are many different types of plastic that we use every day
These are split in to 19 different grades – bottles are made of grades1 and 2 plastics
Plastics can be very difficult to recycle Grades 1 and 2 are the easiest to recycle
Plastics can take over 500 years to breakdown
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• About 7% of all household waste is plastic.
• Annually, 3 million tons of plastic rubbish are produced.
• 57% of litter found on beaches is plastic.
• In 2001 only 7% of all plastic was recycled. Is this the case in your household?
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Started in 1988 by the Society of the Plastics Industry (SPI)
To help ID the plastics in garbage Is voluntary. However, 39 states have
adopted the system as mandatory The arrow symbol is misleading – just
because it has it, it does not mean the item is recyclable or came from recycled items
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PET or Polyethylene terephthalate
Description:Safe, strong, transparent and versatileLight weight, resealability, shatter resistance and recyclabilityClear tough plastic, may be used as a fiber
Uses:Beverages, food items … cups
Recycled into carpets, tshirts, fleece jackets, sleeping bags, dog beds, car bumpers and door panels…
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HDPE High Density Polyethylene
Description:Very common plastic, usually white or colored
Uses:Bottles, crates, buckets, pipes, toys, fuel containers, bagsPlastic grocery bags cause problems at recycling plants and therefore are not accepted
Recycled into:Plastic lumber, truck cargo liners, trash containers, rope, piping, and toys
Monomer:
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UPVC Unplasticized polyvinyl chloride
Description:UPVC Hard rigid plastic, may be clearPPVC Flexible, clear, elastic plastic
Uses:Pipes, fences, windows…
Monomer:
PPVC Plasticized polyvinyl chloride
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Description:Soft, flexible plastic
Uses:Carrier bags and bin liners
Monomer:
Low density polyethylene
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Description:Hard, but flexible plastic – many uses
Uses:Margarine tubs, microwaveable meal trays.
Monomer:
Polypropylene
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Description:PS Rigid, brittle plastic, may be clear, glassyEPS foamed, lightweight, energy absorbing, thermal insulation
Uses:Yogurt pots, foam meat or fish trays, hamburger boxes and egg cartons, vending cups, plastic cutlery, protective packaging for electronic goods and toys
Monomer:
Polystyrene PSEPS
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Description:Other. Use of this code indicates that the package is made with something other than the previous 1-6 types or is made of more than one of the above in combination
Uses:All else
Polystyrene
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Mechanical recycling of plastics refers to processes which involve the melting, shredding or granulation of waste plastics.
Plastics must be sorted prior to mechanical recycling. At the moment in the UK most sorting for mechanical
recycling is done by trained staff who manually sort the plastics into polymer type and/or color.
Boulder County Colorado Videohttps://www.youtube.com/watch?v=5YaTpL8nl7c