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Twisted rope and preparation method thereof

A technology of twisting rope and single yarn is applied in the application field of polymer materials, which can solve the problems of low strength utilization rate, easy generation of burrs and high cost, and achieve the effects of high strength utilization rate, no glue, environmental protection cost, and easy processing.

Inactive Publication Date: 2014-10-08
ZHENGZHOU ZHONGYUAN DEFENSE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the UHMWPE fiber is a filamentous structure (the linear density of the single filament is about 2.5 denier), so in the process of preparing chemical fiber ropes based on the gel filament fiber of UHMWPE, it is necessary to process the fibers of multiple filamentary structures. Sorting separately, the process is complicated and the cost is high. Compared with chemical fiber ropes made of other materials, the market price is too high, which is not conducive to large-scale application
In addition, in the process of preparing chemical fiber ropes based on ultra-high molecular weight polyethylene fibers, the surface of the fibers is prone to burrs due to friction, and the fibers are prone to breakage, twisting, and entanglement, which is not conducive to the overall uniform force of multiple fibers, resulting in The overall strength of the obtained chemical fiber rope is often lower than the total strength of multiple ultra-high molecular weight polyethylene fibers, and the strength utilization rate is very low

Method used

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  • Twisted rope and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as image 3 As shown, the present embodiment provides a kind of preparation method of twisted rope, at least comprises the following steps:

[0051] Step S301: Converging or converging and twisting the ultra-high molecular weight polyethylene film or strip to obtain a single yarn.

[0052] Step S302: Twisting the single yarn to obtain yarn strands.

[0053] Step S303: Twisting multiple yarn strands to obtain a twisted rope.

[0054] An optional structure of the single yarn in step S301 is shown as figure 2 As shown, the single yarn 201 can be made of UHMWPE film or tape. A better converging process of ultra-high molecular weight polyethylene film or strip For example: put the ultra-high molecular weight polyethylene film or strip on the creel and release it, and then wind it to the on the die. The prepared single yarn has the advantages of good structural integrity, high strength, high strength utilization rate, high production efficiency, low processing cost...

Embodiment 2

[0078] Different from the first embodiment above, in the technical solution provided by this embodiment, a polyurethane resin layer is also formed on the outer surface of the twisted rope made by twisting multiple yarn strands. The preferred process steps are as follows: Figure 5 shown, namely image 3 After the shown step S303, it also includes:

[0079] Step S304: Put the twisted rope obtained by twisting the plurality of yarn strands into the water-based polyurethane resin emulsion, so that the outer surface of the twisted rope is soaked in the water-based polyurethane resin emulsion.

[0080] Step S305: drying and shaping the twisted rope soaked in the water-based polyurethane resin emulsion, so as to form a polyurethane resin layer on the outer surface of the twisted rope.

[0081] The step S304 is equivalent to performing surface coating treatment on the twisted rope obtained by twisting multiple yarn strands, and the step S305 is equivalent to performing drying and se...

Embodiment 3

[0083] This embodiment provides a three-strand twisted rope, the preparation method of which is as follows:

[0084] The ultra-high molecular weight polyethylene strips with a linear density of 300 denier, a width of 3 mm, a thickness of 0.02 mm, a breaking strength of 28 grams per denier, a tensile modulus of 1700 grams per denier, and an elongation at break of 1.9% are bundled and twisted. The direction is the Z direction, and the twist is 25 per meter to make a single yarn. 229 single yarns are twisted, the twist direction is S direction, and the twist is 20 pieces / meter, and yarn strands are obtained. Twist the 3 strands of yarn, the twist direction is Z direction, and the twist is 15 pieces / m to make a twisted rope, the diameter of the twisted rope is 6mm.

[0085] Adopt the U.S. Instron SATEC series horizontal material testing machine and GB / T8834 (National Standard Rope Related Physical and Mechanical Properties Determination) test standard to carry out performance tes...

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Abstract

The invention relates to a twisted rope and a preparation method thereof. The twisted rope is twisted by a plurality of strands of plied yarn, and each strand of plied yarn is twisted by single yarn which is formed by banding or banding and twisting ultra-high molecular weight polyethylene films or straps. According to the provided technical scheme, the twisted rope can be prepared by the single yarn instead of conventional ultra-high molecular weight polyethylene fiber, the strength utilization rate of the ultra-high molecular weight polyethylene films or straps is high, and the twisted rope is easy to process, non-glued, environment-friendly and low in cost.

Description

technical field [0001] The invention relates to the application field of polymer materials, in particular to a twisted rope and a preparation method thereof. Background technique [0002] Chemical fiber ropes are widely used due to their advantages of light weight, high strength, and wear resistance, gradually replacing the original application range of natural fiber ropes. Chemical fiber twisted ropes are especially widely used because of their simple manufacturing process and equipment, and low production costs. [0003] Ultra High Molecular Weight Polyethylene (UHMW-PE) is a thermoplastic engineering plastic with a linear structure and excellent comprehensive properties. Making high-strength fibers based on this material is one of its important uses. The outstanding advantages of UHMWPE fiber, such as high strength, high modulus, low density, and aging resistance, have also been used in the manufacture of chemical fiber ropes. [0004] Existing ultra-high molecular weigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/00D07B1/02
CPCD07B1/025D07B2201/1096D07B2201/2003D07B2205/2014D07B2801/10
Inventor 姬长干马军营阴瑞文马玉倩
Owner ZHENGZHOU ZHONGYUAN DEFENSE MATERIAL