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Engineering Materials Technology, 2nd Edition
book

Engineering Materials Technology, 2nd Edition

by William Bolton
October 2013
Intermediate to advanced content levelIntermediate to advanced
468 pages
20h 15m
English
Newnes
Content preview from Engineering Materials Technology, 2nd Edition
Basic
structure
of matenals 23
Polymers are long chain molecules. These long chains become easily tangled
with each other. The paint in the tin consists of tangled molecules and because
of this does not flow easily. When the paint is brushed the act of brushing aligns
many molecules so that their chains point in the same direction. This allows
them to slide more easily over one another and so the viscosity decreases.
1.4 Surfaces
Molecules in the bulk of a liquid are surrounded by other molecules and are
subjected to attractive forces which are roughly the same in all directions. At
the surface of the liquid, however, the molecules have no
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Publisher Resources

ISBN: 9781483141077