week3Plastic - Plastic Plastic...

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1 Plastic Plastic • http://en.wikipedia.org/wiki/Plastic • http://www.plasticsresource.com/s_plastic DID=133 • One of the most important materials we use on the large scale today is plastic. • It is lightweight and has many different forms, with many different characteristics that can be put to a huge array of uses. Plastic • Most plastic is based on carbon (derived mostly from petroleum products), though some are made of silicates (silicon and oxygen) • Despite being carbon based most plastic is non-biodegradable (at least in the short term. . In may degrade in thousands of years)
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2 Plastic – From Petroleum • Of the crude oil and natural gas used in Canada about 10% in used in petrochemicals (which includes plastic) • Of this about 10% of the petrochemicals produced is plastic • Other petrochemicals include rubber(10%), paints(10%), fibres(10%) and fertilizers (50%!!) Plastic – Carbon bonding • Plastic and organic compounds are based on carbon • Carbon works as the basic building block for these materials since a carbon atom can form four links or BONDS with other atoms • This allows it to build up very complex 3- dimensional structures (like proteins and DNA) • Plastic is what we refer as a ‘polymer’ it is made up linked building blocks we called ‘monomers’ • There a many different monomers, next
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week3Plastic - Plastic Plastic...

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