Abstract
The change in the defectiveness of ultrastrong para-aromatic Armos and SVM fibres during thermal aging in air was investigated based on the scale dependences and coefficients of variation of the breaking characteristics: strength, elongation, and strain energy at break. The increase in the defectiveness of ultrastrong para-aromatic fibres during thermal aging can be more objectively assessed by the change in the scale dependences and coefficients of the strain characteristics (elongation and strain energy at break) than with the change in the scale dependences and scale coefficients of the strength and the coefficients of variation of the breaking characteristics. The defectiveness of Armos fibres in thermal aging changes less significantly than for SVM fibres. The data obtained show the sufficiently high working capacity of Armos and SVM fibres in extreme temperatures — up to 300°C — for up to 10 h.
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Translated from Khimicheskie Volokna, No. 1, pp. 34–38, January–February, 1995.
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Perepelkin, K.E., Baranova, S.A. & Gurova, E.Y. Effect of thermal aging on the defectiveness of ultrastrong para-aromatic armos and SVM fibres. Fibre Chem 27, 35–40 (1995). https://doi.org/10.1007/BF00551528
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DOI: https://doi.org/10.1007/BF00551528