The role of zinc stearate in the process of vulcanisation is:
to accelerate the process
to stop the process
to slow down the process
to initiate the process
A
to accelerate the process
B
to stop the process
C
to slow down the process
D
to initiate the process
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Solution
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In sulphur vulcanization of natural rubber excess zinc stearate enhances the yield of crosslinks, reduces their average length, and inhibits their destruction.
It is an "activator" for accelerated rubber sulfur vulcanization.
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