RECOVERY PROPERTIES OF AMIDE FIBRES FABRICATED FROM POLYMERS WITH DIFFERENT MOLECULAR CHAIN RIGIDITY AT HIGH TEMPERATURES

Tsobkallo, E. S.
Kvaratskheliya, V. A.
Shen, D.
Vait, D.

^*St. Petersburg State University of Technology and Design
^**De Montfort University, Leicester, Great Britain.

Fibre Chemistry 33(5):p 386-390, September-October 2001.

Increasing the temperature significantly alters the character of accumulation of residual deformation in Armos fibre fabricated from a rigid-chain polymer due to elimination of moisture and breaking of hydrogen bonds of the “polymer—water—polymer” type. Accumulation of residual deformation in Terlon fibres at high temperatures takes place differently than in Armos. This is due to the difference in the degree of crystallinity of these fibres fabricated from rigid-chain polymers. No significant changes in the character of accumulation of residual deformation with an increase in the temperature were observed in Fenilon fibre fabricated from a polymer with medium chain rigidity and capron fibre fabricated from a flexible-chain polymer.