Effect of twist on tensile and abrasion resistance of split film fiber strands for fishing
In this paper,UHMWPE split film fibers for fishing prepared by membrane splitting method were used as raw materials,and UHMWPE split film strands were prepared by twisting,and the effects of twisting on the diameter,linear density,tensile properties and abrasion resistance of UHMWPE split film strands were investigated to provide references for the preparation,development and application of UHMWPE split film rope and net materials for fishing.The actual linear densities of split film strands showed a tendency to increase and then decrease with the increase of twist.As the twist varied,the lower the fiber line density,the lower the twist value when the actual line density of the fiber strand reached its maximum value;the breaking force of the strand decreased with the increase of the twist.The smaller the angle between the fiber and the central axis of the strand in the axial direction,the smaller the reduction of the effective partial force,and the smaller the loss of breaking strength of the strand.Under the same twist,the smaller the wire density was,the smaller the force loss was;the knot force of the UHMWPE film-splitting fiber strand showed the change rule of increasing firstly and then decreasing with the increase of twist,and the knot force of three kinds of wire densities of strand reached the maximum value when the pre-twisting degree was 120 T·m-1,which was 204.15,373.5 and 562.41 N,respectively.Fibers were 50.14％,37.13％,and 30.22％higher than those of the untwisted UHMWPE split film fibers,respectively.The knot strength of 1600 D split film strands increased with the increase of twist in the experimental twist setting range.At a pre-twist of 180 T·m-1,the yarn strands showed a 32.49％increase in knot strength compared to the untwisted split film fibers.In addition,the abrasion resistance of 1600 D UHMWPE split film strands gradually decreased with the increase of twist;the abrasion resistance of 3200 and 4800 D UHMWPE split films first decreased and then recovered without significant difference.The effect of twisting on the abrasion resistance of the strands decreased with the increase in fiber density.The study showes that untwisted or low-twist,low linear density UHMWPE split film strands are suitable for fabricating UHMWPE split film fiber knotless net,while untwisted or low-twist high linear density UHMWPE split film strands exhibit superior abrasion resistance.Moderate to high twist,low linear density UHMWPE split film strands can be used to create a UHMWPE split film fiber knotted net.
ultra-high molecular weight polyethylene split film fibertwisttensile mechanical propertywear resistancefishing net
万方数据
维普
