Conclusions
A method has been proposed which permits one to quickly evaluate the effect of wet spinning conditions on the structure of an unoriented polyacrylonitrile specimen.
This method is based on spinning a spinning composition through a macro-hole and preparing a strand having a diameter of several millimeters.
The structure of the strand is easily characterized by traditional methods: from geometric density, specific fraction of voids, magnitude of the shell and core, and so on.
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Literature cited
É. A. Pakshver, in: Fibres from Carbochain Polymers [in Russian], Khimiya, Moscow (1973), pp. 84–100.
Additional information
Translated from Khimicheskie Volokna, No. 2, pp. 31–32, March–April, 1986.
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Beder, N.M., Kabanova, D.M. & Dvoeglazova, I.N. A method of investigating the structure-formation process of unoriented polyacrylonitrile specimens. Fibre Chem 18, 108–110 (1986). https://doi.org/10.1007/BF00549624
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DOI: https://doi.org/10.1007/BF00549624