| 摘要 |
PURPOSE: A polyketone fiber having 90 mole% of repetitive ketone units of -CH2 CH2 -CO- is provided to enhance polyketone fiber strength and to be used in an industrial fiber field. CONSTITUTION: A method for fabricating polyketone fiber comprises: a step of dissolving polyketone containing 90 mole% of more of ketone units in a metal salt solution containing zinc bromide to prepare a polyketone solution; a step of extruding/spinning the polyketone solution by a spinning nozzle and solidifying in an acidic solution to prepare a multi-filament; and a washing and drying the multi-filament and treating with emulsion for drawing. The strength, fineness, and extension of the polyketone fiber are 10-30 g/d, 500-30,000 denier, and 3-10%, respectively. The metal salt solution contains zinc bromide, calcium bromide, and lithium bromide. |
