Fibres from polymer blends

Abstract

Specific improvements in fibre properties can be achieved if they are produced from polymer blends. Fibre properties are highly dependent on phase dispersion of the component polymers. In practice, two polymers are combined to give either biconstituent or bicomponent fibres.Biconstituent fibres are easier to produce and their production and properties are described and discussed in this paper, in particular of those based on the following combinations: blends of nylon 6 with nylon 66 and other nylons, polypropylene (PP) with polystyrene, fibre-grade PP with plastic-grade PP, poly(ethylene terephthalate) (PET) with block copolyester, and flexible polymers with rigid rod copolyester.