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Inverse evaluation of the integral ordering of the structure and defectiveness of fibres and yarns for technical applications based on normalized values of the mechanical properties

  • Properties and Use of Chemical Fibres
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Fibre Chemistry Aims and scope

Abstract

Methods are proposed for an integral (generalized) evaluation of the degree of ordering of the structure and defectiveness of fibres based on the inverse use of indexes of their mechanical properties — modulus of elasticity and strength — normalized with respect to their maximum attainable values. These maximum attainable values are determined in defined temperature-time conditions for a defect-free polymer crystal by several methods, obtaining values in relatively good agreement. The coefficients characterizing the overall ordering and imperfection of the structure, and the defectiveness of different types of fibres based on linear (aliphatic and aromatic), laminar (carbon), and three-dimensional (silicate) polymers were estimated. Different types of fibres, including fibres of the same type, were compared with respect to the level of structural organization and defectiveness. This could serve as a measure of the perfection of the fabrication processes.

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  1. K. E. Perepelkin
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St. Petersburg State University of Technology and Design. Translated from Khimicheskie Volokana, No. 5, pp. 34–41 September–October, 1996.

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Perepelkin, K.E. Inverse evaluation of the integral ordering of the structure and defectiveness of fibres and yarns for technical applications based on normalized values of the mechanical properties. Fibre Chem 28, 326–335 (1996). https://doi.org/10.1007/BF01057699

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