Abstract
The spinnability was measured for aqueous viscoelastic solutions of tetradecyl- and hexadecyltrimethylammonium salicylates (C14TASal, C16TASal) in the absence and presence of sodium salicylate (NaSal) and sodium bromide (NaBr). The spinnability is classified into two types, D and C. While the intrinsic drawing length in type D is proportional to the drawing velocity, the drawing intrinsic length in type C decreases with the drawing velocity or is independent of it. The spinnability changes from type D to C, as the drawing velocity and the surfactant concentration increase, and the temperature lowers. The effect of salt is different between NaSal and NaBr. It can be assumed that a pseudo-network structure composed of rod-like micelles is formed in viscoelastic and spinnable surfactant solutions. Then, the spinnability depends on the balance between the elasticity and the viscosity in which the structure results.
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Imae, T., Hashimoto, K. & Ikeda, S. The spinnability of viscoelastic solutions of tetradecyl- and hexadecyl-trimethylammonium salicylates. Colloid & Polymer Sci 268, 460–468 (1990). https://doi.org/10.1007/BF01411005
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DOI: https://doi.org/10.1007/BF01411005