In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for _______________ fibres?
Correct answer: B. PVC
- A. Polythene
- B. PVC
- C. Rayon
- D. Polyvinyl acetate
Explanation
PVC can be spun from a solution in a volatile solvent, with warm air evaporating the solvent in dry spinning. Rayon is generally produced by wet spinning, while polythene is not normally made by this process.
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