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5 Cards in this Set
- Front
- Back
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Melt Spinning
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Polymer is melted and forced through a spinneret. Then cool air solidifies the melted polymer into filaments.
(Melt-Spun fibers include: nylon, olefin, polyester, saran, and glass) |
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Dry Spinning
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Polymer is dissolved in a solvent & then extruded into an atmosphere of warm, dry air. Warm air then evaporates the solvent and hardens the filaments. (Acetate, some acrylics, modacrylic, spandex, and vinyon)
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Wet Spinning
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Involves dissolving the polymer in a chemical bath and then extruding it into another chemical bath that hardens the polymers into filaments
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Dry-jet wet spinning
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variation of wet spinning. when the fiber is extruded it passed through a small space of air b4 it is immersed in the chemical bath.
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Solvent spinning
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newest process. Polymer is dissolved in amine oxide, then extruded into a solvent bath. Solvent can be recovered and recycled
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