| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to technology of obtaining complex fibres from high-quality polyethylene. Method includes obtaining polyethylene solution with superhigh mole weight in solvent; formation of fibres from solution through forming plate with at least 5 spinning holes, and through air clearance, drawing out obtained liquid elementary fibres with drawing out degree in liquid medium DR liquid.; cooling of liquid elementary fibres with obtaining gel-like elementary fibres containing solvent; extraction of solvent and performing drawing out of elementary fibres in at least one stage before, during and/or after extraction of solvent with degree of drawing out DRsolid., equal to at least 4. Each spinning hole includes zone of narrowing characterised by specific size and further zone characterised by diametre Dn and length Ln with value Ln/Dn within the range from 0 to 25, with obtaining as a result degree of drawing out DRliquid=DRs.hùDRa.c., equal to at least 150, where DRs.h. - degree of drawing out in spinning holes, exceeding 1, and DRa.c. - degree of drawing out in air clearance, equal to at least 1. From obtained complex fibres from high-quality polyethylene semi-finished products or products of consumptive use, including ropes and bulletproof composites, are produced. ^ EFFECT: elaboration of efficient technology of obtaining complex fibres from high-quality polyethylene. ^ 30 cl, 4 dwg, 5 tbl, 29 ex |
