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Polymer Reactor Engineering (Paperback, Softcover reprint of the original 1st ed. 1994)
Loot Price: R1,478
Discovery Miles 14 780
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Polymer Reactor Engineering (Paperback, Softcover reprint of the original 1st ed. 1994)
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Approximately half of the world production of the petrochemical
industry (more than 100 million tonnes) is in the form of polymers,
yet it would probably surprise most people to learn how much their
lifestyle depends on polymers ranging, as they do, from detergents,
kitchenware and electrical appliances to furnishings and a myriad
other domestic goods. Still less are they likely to be aware of the
extensive part they play in engineering applications for mechanical
machine components and advanced high performance aircraft. This
versatility derives from the fact that polymeric materials are made
up of a range of molecules of varying length, whose properties are
related to molecular structure and the proportions of the chains in
the mixture. For example, polypropylene is a commodity polymer
which is produced in hun dreds of different grades to meet specific
market requirements. This depends on the catalyst as well as the
operating conditions and reactor design. A major area for growth is
in substituting polymers for conventional materials such as
ceramics and metals. Not only can they match these materials in
terms of mechanical strength and robustness but they have very good
resistance to chemical attack. Polyamides, for example, are widely
used for car bumpers and new polymers are being developed for
engine manifolds and covers. In 1993 there is, typically, 100 kg of
various polymers used in cars and this is continually increasing,
giving a net weight reduction and hence better fuel economy."
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