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Effect of sulfuric acid concentration in the precipitation bath on the efficiency of modifier action in the preparation of viscose fibres

  • Chemistry And Technology Of Man-Made Fibres
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Fibre Chemistry Aims and scope

Conclusions

The modifying power of polyethylene glycols (PEG-35 and PEG-115), an ethoxylated amine, dimethylamine, and sodium carbamate has been investigated under conditions which model the spinning of viscose fibres.

It has been shown that the maximum modifying power is observed at a sulfuric acid content of 40–60 g/liter in the precipitation bath.

On the basis of an analysis of diffusion kinetics, the suggestion has been made that the weak modifying ability at a sulfuric acid concentration below 40 g/liter in the precipitation bath is explained by an alkaline medium; and the weak modifying power at a concentration above 60 g/liter, by a strongly acid medium on the surface of the forming fibre.

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Literature cited

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Authors
  1. O. N. Panichkina
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  2. A. T. Serkov
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  3. L. G. Tokareva
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  4. S. A. Kovaleva
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Additional information

Translated from Khimicheskie Volokna, No. 3, pp. 48–49, May–June, 1989.

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Panichkina, O.N., Serkov, A.T., Tokareva, L.G. et al. Effect of sulfuric acid concentration in the precipitation bath on the efficiency of modifier action in the preparation of viscose fibres. Fibre Chem 21, 248–250 (1990). https://doi.org/10.1007/BF00549659

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  • DOI: https://doi.org/10.1007/BF00549659

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