Polymer Technology
Rayon is superior to cotton in making gauge for wound treatment, because rayon

Does not stick to the wound unlike cotton
Can absorb over 90% of its own weight of water
Is a synthetic polymer
Both B & C

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Polymer Technology
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to

Reduce the time of vulcanisation and quantity of vulcanising agent
Increase its viscosity
Reduce its viscosity to permit easier processing
Protect rubber goods from attack by oxygen & ozone present in the atmosphere

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