to many acids, solvents and other chemicals. The maximum service
temperature tends to be about 500°C to 1300°C, depending on the composition
of the glass. Table 15.6 gives typical properties.
Table 15.6
Properties
of
typical glasses
Soda-lime-silica glass
Pyrex
Density
(Itfkgm-
3
)
2.5
2.2
Coefficient
of
expansion
Max. service
Tensile modulus
(10~
6
K'
1
)
temperature
(°C) (GN m~
2
or GPa)
9.2
3.2
460
490
70
67
Problems
1 How do the properties of high and low density polythene differ?
2 How do the properties of polystyrene wit ...
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