Surface modification of high-strength aromatic polyamide fibres

A modifying (finishing) composition for aromatic polyamide fibres which improves their properties in use was developed, extending the area of application of these fibres. The optimum composition of the finish was determined: an aqueous emulsion of oligoethyl hydride siloxane with SnCl ₂ catalyst. The finish is fixed and reacts with the fibre primarily in the surface layer, causing certain structural changes. Dedicated to the memory of Academician G. I. Kudryavtsev. Translated from Khimicheskie Volokna, No. 3, pp. 10–12, May–June, 1998.