Single yarn, single yarn product, and preparation method therefor

Abstract

The invention relates to a single yarn, a single yarn product and a preparation method thereof, wherein the preparation method of the single yarn comprises: converging or converging and twisting an ultra high molecular weight polyethylene thin film or strip to obtain the single yarn. The single yarn product comprises at least a body prepared from the above-mentioned single yarn. The single yarn obtained by converging or converging and twisting the ultra high molecular weight polyethylene thin films or strips in the invention replaces traditional ultra high molecular weight polyethylene fibers to develop and prepare various products. In addition to the advantages of wear resistance, impact resistance, corrosion resistance, UV resistance and the like which are similar to those of the ultra high molecular weight polyethylene fibers, the single yarn also has the unique advantages of good structural integrity, high strength, high strength utilization ratio, high production efficiency, low processing cost, light weight, small linear density and the like, and therefore the single yarn can replace the traditional ultra high molecular weight polyethylene fibers in the preparation of various products and has a very wide application range.

1 . A preparation method of a single yarn, comprising: converging or converging and twisting an ultra high molecular weight polyethylene thin film or strip to obtain the single yarn. 
     
     
         2 . The preparation method of the single yarn according to  claim 1 , wherein the converging of the ultra high molecular weight polyethylene thin film or strip comprises: converging the ultra high molecular weight polyethylene thin film or strip along the straightening direction of a molecular chain thereof. 
     
     
         3 . The preparation method of the single yarn according to  claim 1 , wherein the related parameters of the ultra high molecular weight polyethylene thin film at least meet one or more of the following conditions:
 the linear density is above 5000 deniers;   the width is above 100 mm;   the thickness is below 0.2 mm;   the breaking strength is above 10 grams/denier;   the tensile modulus is above 800 grams/denier; and   the elongation at break is below 6%.   
     
     
         4 . The preparation method of the single yarn according to  claim 1 , wherein the related parameters of the ultra high molecular weight polyethylene strip at least meet one or more of the following conditions:
 the linear density is above 100 deniers;   the width is 1-100 mm;   the thickness is below 0.2 mm;   the breaking strength is above 10 grams/denier;   the tensile modulus is above 800 grams/denier; and   the elongation at break is below 6%.   
     
     
         5 . The preparation method of the single yarn according to  claim 1 , wherein the twisting direction for twisting is left twisting or right twisting, and/or the twist for twisting is 1-100/m. 
     
     
         6 . A single yarn, wherein the single yarn is prepared by adopting the preparation method of the single yarn according to  claim 1 . 
     
     
         7 . A preparation method of a single yarn product comprising at least a step of preparing a body of the single yarn product from the single yarns prepared according to  claim 6 . 
     
     
         8 . The preparation method of the single yarn product according to  claim 7 , wherein the preparing of the body from the single yarns comprises: unidirectionally arranging, connecting, converging, twisting, interweaving, bonding, intertwining, sewing and/or hot-pressing the multiple single yarns into a whole. 
     
     
         9 . The preparation method of the single yarn product according to  claim 7 , wherein the preparing of the body from the single yarns comprises: converging, twisting, interweaving, bonding, intertwining, sewing and/or hot-pressing the multiple single yarns into a whole to form a single-strand structure and plying the multiple single-strand structures into a whole. 
     
     
         10 . The preparation method of the single yarn product according to  claim 9 , wherein the plying of the multiple single-strand structures into the whole comprises: twisting, interweaving, bonding, intertwining, sewing and/or hot-pressing the multiple single-strand structures into a whole. 
     
     
         11 . The preparation method of the single yarn product according to  claim 7 , wherein the preparing of the body from the single yarns comprises: crisscross compounding and laminating multiple single-layer structures formed by unidirectionally arranging and connecting the multiple single yarns at certain angles into a whole. 
     
     
         12 . A single yarn product, wherein the single yarn product is prepared by adopting the preparation method of the single yarn product according to  claim 7 . 
     
     
         13 . The preparation method of the single yarn according to  claim 2 , wherein the related parameters of the ultra high molecular weight polyethylene thin film at least meet one or more of the following conditions:
 the linear density is above 5000 deniers;   the width is above 100 mm;   the thickness is below 0.2 mm;   the breaking strength is above 10 grams/denier;   the tensile modulus is above 800 grams/denier; and   the elongation at break is below 6%.   
     
     
         14 . The preparation method of the single yarn according to  claim 2 , wherein the related parameters of the ultra high molecular weight polyethylene strip at least meet one or more of the following conditions:
 the linear density is above 100 deniers;   the width is 1-100 mm;   the thickness is below 0.2 mm;   the breaking strength is above 10 grams/denier;   the tensile modulus is above 800 grams/denier; and   the elongation at break is below 6%.   
     
     
         15 . The preparation method of the single yarn according to  claim 2 , wherein the twisting direction for twisting is left twisting or right twisting, and/or the twist for twisting is 1-100/m. 
     
     
         16 . A single yarn, wherein the single yarn is prepared by adopting the preparation method of the single yarn according to  claim 2 . 
     
     
         17 . A single yarn, wherein the single yarn is prepared by adopting the preparation method of the single yarn according to  claim 3 . 
     
     
         18 . A single yarn, wherein the single yarn is prepared by adopting the preparation method of the single yarn according to  claim 4 . 
     
     
         19 . A single yarn, wherein the single yarn is prepared by adopting the preparation method of the single yarn according to  claim 5 .