Graphene composite ultra-high molecular weight polyethylene fiber and preparation method thereof

Inactive Publication Date: 2019-07-11
JIANGSU HANVO SAFETY PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0059]The antioxidant DNP is an abbreviation of N,N′-bis(β-naphthyl)p-phenylenediamine, a light gray powder with a melting point of about 230° C., which is readily soluble in aniline and nitrobenzene, but insoluble in water, and is suitable for polyethylene and polypropylene. Anti-impact polystyrene and ABS resin, in addition to having anti-oxidation performance, have better thermal stability and inhibit the influence of copper and mangane

Problems solved by technology

However, due to the addition of a hard material such as an inorganic metal or a glass fiber, the body feels hard and the wearing is not comfortable.
However, if the graphene powder is directly added during the spinning mixture, the graphene is agglomerated in a large amount, and a spinning mixture with poor dispersibility is obtained.
The experiment verified that if the graphene powder was directly added during the spinning

Method used

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  • Graphene composite ultra-high molecular weight polyethylene fiber and preparation method thereof
  • Graphene composite ultra-high molecular weight polyethylene fiber and preparation method thereof
  • Graphene composite ultra-high molecular weight polyethylene fiber and preparation method thereof

Examples

Experimental program
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example 1

[0157]As shown in FIG. 13, a method for preparing a composite ultra-high molecular weight polyethylene fiber is provided.

[0158]1) Pretreatment of Glass Fiber

[0159]0.03 kg of silane coupling agent KH-550 was dissolved in anhydrous ethanol, then 3 kg of glass fiber (having a diameter of 5-7 μm, a length of 50-400 μm, an average length of 70 μm) was added to mix homogeneously, in which KH-550 accounted for 1 wt % of the glass fiber. After 30 min of immersion, the glass fiber was dried at 120° C. for 2 h, and ground and filtered by 100 mesh for subsequent use.

[0160]2) Preparation of Glass Fiber Premix

[0161]The treated glass fiber was poured into 9 kg of white oil (the concentration of glass fiber is 25%) to mix, and then stirred at a high speed for 15 min with an emulsifier at a speed of 3500 rpm.

[0162]3) Pretreatment of Graphene Slurry

[0163]0.05 kg of graphene was added to 0.95 kg of anhydrous ethanol and mixed and stirred, and then the mixture was ground in a sand mill until the graph...

example 2

[0170]As shown in FIG. 13, a method for preparing a composite ultra-high molecular weight polyethylene fiber is provided.

[0171]1) Pretreatment of Glass Fiber

[0172]6 g of silane coupling agent KH-560 was dissolved in anhydrous ethanol, then 6 kg of glass fiber (having a diameter of 3-7 μm, a length of 10-400 μm, an average length of 60 μm) was added to mix homogeneously, in which KH-560 accounted for 0.1 wt % of the glass fiber. After 10 min of immersion, the glass fiber was dried at 180° C. for 1 h, and ground and filtered by 100 mesh for subsequent use.

[0173]2) Preparation of Glass Fiber Premix

[0174]The treated glass fiber was poured into 114 kg of white oil (the concentration of glass fiber is 5%) to mix, and then stirred at a high speed for 30 min with an emulsifier at a speed of 5000 rpm.

[0175]3) Pretreatment of Graphene Slurry

[0176]0.01 kg of graphene was added to 0.99 kg of anhydrous ethanol and mixed and stirred, and then the mixture was ground in a sand mill until the graphe...

example 3

[0183]As shown in FIG. 13, a method for preparing a composite ultra-high molecular weight polyethylene fiber is provided.

[0184]1) Pretreatment of Glass Fiber

[0185]0.02 kg of silane coupling agent KH-570 was dissolved in anhydrous ethanol, then 0.2 kg of glass fiber (having a diameter of 3-10 μm, a length of 10-600 μm, an average length of 30 μm) was added to mix homogeneously, in which KH-570 accounted for 10 wt % of the glass fiber. After 2 h of immersion, the glass fiber was dried at 50° C. for 6 h, and ground and filtered by 100 mesh for subsequent use.

[0186]2) Preparation of Glass Fiber Premix

[0187]The treated glass fiber was poured into 1.8 kg of white oil (the concentration of glass fiber is 10%) to mix, and then stirred at a high speed for 1 h with an emulsifier at a speed of 3000 rpm.

[0188]3) Pretreatment of Graphene Slurry

[0189]0.08 kg of graphene was added to 0.92 kg of anhydrous ethanol and mixed and stirred, and then the mixture was ground in a sand mill until the graphe...

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Abstract

The present invention provides a composite ultra-high molecular weight polyethylene fiber and a preparation method thereof, wherein the method comprises mixing glass fiber, graphene slurry, UHMWPE powder and white oil, and then swelling to a molten state, then cooling into a gel-spun, and finally making the fiber from the gel-spun. The method of the present disclosure not only can solve the problem that the glass fiber has poor dispersibility in the case of high viscoelasticity of the ultra-high molecular weight polyethylene, but also can improve the cut resistance of the ultra-high molecular weight polyethylene fiber on the basis of ensuring the flexibility of the yarn.

Description

TECHNICAL FIELD[0001]The present invention relates to a composite ultra-high molecular weight polyethylene fiber and a preparation method thereof, and belongs to the technical field of high performance fibers.BACKGROUND[0002]Ultra-high molecular weight polyethylene (UHMWPE) fiber is also known as ultra-high strength polyethylene (UHMWPE) fiber, ultra-high modulus polyethylene (UHMWPE) fiber. Due to its unrivaled ultra-high tensile strength, UHMWPE can be used to produce fibers with ultra-high modulus of elasticity and strength by gel spinning, and the resulting fibers have a tensile strength of up to 3-3.5 Gpa, and a tensile elastic modulus of up to 100-125 GPa; and the fiber strength of which is the highest of all fibers that have been commercialized to date, 4 times larger than carbon fiber, 10 times larger than steel wire, and 50% larger than aramid fiber. It is widely used in military equipment, aerospace, marine operations, sports equipment and other fields.[0003]The patents fo...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F9/08D01F1/10D01D5/088
CPCD01F8/06D01F9/08D01F1/10D01D5/088D10B2401/063D01F6/46D01D1/02D01F6/04
Inventor OU, CHONGHUAREN, SHENDONGZHANG, MINGWANG, XIANHUA
Owner JIANGSU HANVO SAFETY PROD CO LTD
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