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Carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and preparation method thereof

A technology of ultra-high molecular weight and carbon nanomaterials, applied in the field of modified polymer fibers and their preparation, to achieve the effects of simple process, improvement of fiber surface defects, and improvement of mechanical properties and protective properties

Inactive Publication Date: 2020-09-25
SHANDONG NON METALLIC MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a carbon nanomaterial modified ultra-high molecular weight polyethylene fiber, which aims to improve the surface defects and surface inertia of ultra-high molecular weight polyethylene fiber, and improve the strength and surface adhesion of ultra-high molecular weight polyethylene fiber performance

Method used

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  • Carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and preparation method thereof
  • Carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and preparation method thereof
  • Carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 50g of ultra-high molecular weight polyethylene fiber tow into the plasma treatment box, and treat it for 3 minutes under the conditions of 175W power and air atmosphere.

[0030] Dilute the carbon nanotube aqueous dispersion TNMN2 with deionized water until the carbon nanotube concentration is 1wt%.

[0031] Submerge the ultra-high molecular weight polyethylene fibers after plasma treatment in the prepared carbon nanotube dispersion, and ultrasonically infiltrate them for 5 minutes under the conditions of power 200W and frequency 40KHz.

[0032] After the infiltration is completed, take out the sample, and dry it at 60°C for 30 minutes to remove the solvent on the surface of the sample.

[0033] Take out the dried sample, put it into the plasma treatment box again, under the conditions of 175W power and air atmosphere, the treatment time is 3min.

[0034] After the plasma treatment is completed, the ultra-high molecular weight polyethylene fiber sample is taken ou...

Embodiment 2

[0039] Put 50g of ultra-high molecular weight polyethylene fiber tow into the plasma treatment box, and treat it for 3 minutes under the conditions of 175W power and air atmosphere.

[0040] Dilute the carbon nanotube dispersion TNMN2 with deionized water until the concentration of carbon nanotubes is 0.5wt%, dilute the graphene dispersion TNWPRGO until the concentration of graphene is 0.5wt%, mix the two evenly to obtain carbon nanotubes and graphene Mix the dispersion.

[0041]Submerge the ultra-high molecular weight polyethylene fibers after plasma treatment in the prepared carbon nanotube and graphene mixed dispersion, and ultrasonically infiltrate them for 10 minutes under the conditions of power 200W and frequency 40KHz.

[0042] After the infiltration is completed, take out the sample, and dry it at 60°C for 30 minutes to remove the solvent on the surface of the sample.

[0043] Take out the dried sample, put it into the plasma treatment box again, under the conditions...

Embodiment 3

[0049] Put 50g of ultra-high molecular weight polyethylene fiber tow into the plasma treatment box, and treat it for 3 minutes under the conditions of 150W power and air atmosphere.

[0050] Dilute the carbon nanotube aqueous dispersion TNWDM-M8 with deionized water until the carbon nanotube concentration is 0.3wt%.

[0051] Submerge the ultra-high molecular weight polyethylene fibers after plasma treatment in the prepared carbon nanotube dispersion, and ultrasonically infiltrate them for 5 minutes under the conditions of power 200W and frequency 40KHz.

[0052] After the infiltration is completed, take out the sample, and dry it at 60°C for 30 minutes to remove the solvent on the surface of the sample.

[0053] Take out the dried sample, put it into the plasma treatment box again, under the condition of power 150W and air atmosphere, the treatment time is 3min.

[0054] After the plasma treatment is completed, the ultra-high molecular weight polyethylene fiber sample is take...

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Abstract

The invention discloses a carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and a preparation method thereof. The preparation method comprises the following steps of: firstly, performing plasma treatment on an ultra-high molecular weight polyethylene fiber to generate active functional groups on the surface of the ultra-high molecular weight polyethylene fiber; then, immersing the ultra-high molecular weight polyethylene fiber into a carbon nanomaterial dispersion liquid with a proper content, and uniformly covering the surface of the ultra-high molecular weight polyethylene fiber with a carbon nanomaterial by means of an ultrasonic technology; and drying to remove a solvent, and then performing plasma treatment on the ultra-high molecular weight polyethylene fiber to graft and fix the carbon nanomaterial covering the surface of the ultra-high molecular weight polyethylene fiber, thereby finishing modification of the ultra-high molecular weight polyethylene fiber. According to the carbon nanomaterial modified ultra-high molecular weight polyethylene fiber prepared by the method disclosed by the invention, carbon nanotubes, graphene or a mixture of the carbon nanotubes and the graphene is used as a modifying material, so that the surface defects of the ultra-high molecular weight polyethylene fiber are improved, and the strength of the ultra-high molecular weight polyethylene fiber and the interface bonding between the ultra-high molecular weight polyethylene fiber and resin are improved.

Description

technical field [0001] The invention relates to a modified polymer fiber and a preparation method thereof, in particular to a carbon nanomaterial modified ultra-high molecular weight polyethylene fiber and a preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber is a fiber with high crystallinity and high segment orientation prepared from ultra-high molecular weight polyethylene. Ultra-high molecular weight polyethylene fibers have excellent properties such as low density, high strength, corrosion resistance, impact resistance, and cut resistance, and have good application prospects in the field of protective composite materials. However, the ultra-high molecular weight polyethylene fibers will produce obvious surface defects during the spinning, drawing and other operations during the preparation process, such as figure 1 As shown, there are obvious bamboo-like microcracks on the surface of ultra-high molecular weight polye...

Claims

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Application Information

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IPC IPC(8): D06M10/00D06M11/74D06M10/06D06M101/20
CPCD06M10/00D06M11/74D06M10/06D06M2101/20
Inventor 刘方彪王丹勇李树虎秦贞明魏化震陈以蔚张海云李福强张建芹
Owner SHANDONG NON METALLIC MATERIAL RES INST