S.NO
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THEROMOSETTING MATERIALS
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THERMOPLASTIC MATERIALS
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1
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They have three dimensional network
of primary covalent bonds with
cross-linking between chains
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They are linear polymers without
cross-linking and branching.
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2
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They are more harder and stronger
than thermoplastic material
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They are comparitively softer
and less strong.
|
3
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Once hardened and set they do not
soften with the application of heat.
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They can be repeatedly softened by
heat and hardened by cooling.
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4
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Objects made by thermosetting
resigns can be used at comparitively
higher temperature without damage.
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Objects made by thermoplastic resins
cannot be used at comparitively higher
temperatures as they will tend to
soften under heat.
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5
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They are usually supplied in a
monomeric or partially polymerized
from in which they are either liquid
or partially thermoplastic solids.
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They are usually supplied as grannular
materials.
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6
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It is difficult to fill an intricate mould
with such plastics.
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They can fill the complicated mould
quite easily.
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7
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They cant be recycled.
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The scrap of these plastics can be
recycled again and thus they are
economical.
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