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White oil sizing agent for composite graphene, preparation method thereof, as well as preparation method of composite fiber of graphene and UHMWPE (Ultrahigh Molecular Weight Polyethylene)

A composite graphene and composite fiber technology, applied in fiber processing, fiber chemical characteristics, melt spinning, etc., can solve the problems of serious agglomeration, wide distribution of graphene particle size, and difficulty in uniform and stable dispersion.

Pending Publication Date: 2019-02-05
南通恒尚新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, scientists have proposed a new concept, that is, graphene / white oil slurry, which is used in UHMWPE composite fibers. However, due to its poor dispersion, graphene particle size distribution is wide, and agglomeration is serious, it is difficult to Difficult to maintain long-term uniform and stable dispersion

Method used

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  • White oil sizing agent for composite graphene, preparation method thereof, as well as preparation method of composite fiber of graphene and UHMWPE (Ultrahigh Molecular Weight Polyethylene)
  • White oil sizing agent for composite graphene, preparation method thereof, as well as preparation method of composite fiber of graphene and UHMWPE (Ultrahigh Molecular Weight Polyethylene)

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preparation example Construction

[0060]In another embodiment of the present invention, a kind of preparation method of the white oil slurry of graphene comprises:

[0061] 1) Pretreatment of white oil

[0062] Add component A and component B into white oil, and under stirring condition, heat until component A and component B are fully dissolved to form a uniform solution, and the solution is naturally cooled to room temperature, wherein the component A is anti Oxygen agent, the component B is a dispersant and / or modifier;

[0063] 2) Formation of graphene / white oil slurry

[0064] At room temperature, add the graphene powder into the solution obtained in step 1) under high-speed stirring, and continue stirring until a uniformly dispersed graphene / white oil slurry is formed.

[0065] According to an aspect of this embodiment, in the step 1, the heating method is as follows:

[0066] Under stirring conditions, firstly heat to the first temperature, keep it warm for 0.2-3 hours, then raise the temperature to ...

Embodiment 1

[0083] Preparation of white oil slurries, such as figure 1 :

[0084] Add antioxidant 1010 (0.01kg) and PSS (0.01kg) to white oil (99.96kg), heat to 110°C for 0.5h under stirring, then gradually raise the temperature to 130°C at a rate of 20°C / h ℃, and keep it warm for 4 hours until the antioxidant 1010 and PSS are fully dissolved to form a uniform solution, then cool naturally;

[0085] At room temperature, graphene powder (0.02kg) was gradually added to the above solution under high-speed stirring, and the stirring was continued for 1 hour to obtain a uniformly dispersed graphene / white oil slurry.

[0086] Preparation of composite fibers of graphene and UHMWPE:

[0087] Add 20kg (graphene accounts for 0.1wt% of UHMWPE) UHMWPE powder and 102.26kg white oil to the white oil slurry obtained by the above method to make a pre-spinning solution, enter the swelling tank and heat up to 100°C, and then pass through the dissolution tank , feeding kettle, and twin-screw extruder, th...

Embodiment 2

[0088] Example 2, such as figure 1 :

[0089] Preparation of white oil slurry:

[0090] Add antioxidant 1010 (0.02kg) and PSS (0.02kg) into white oil (99.94kg), heat to 115°C for 0.5h under stirring condition, then gradually raise the temperature to 135°C at a heating rate of 25°C / h ℃, and keep it warm for 5 hours until the antioxidant 1010 and PSS are fully dissolved to form a uniform solution, then cool naturally;

[0091] At room temperature, graphene powder (0.02kg) was gradually added to the above solution under high-speed stirring, and the stirring was continued for 2 hours to obtain a uniformly dispersed graphene / white oil slurry.

[0092] Preparation of composite fibers of graphene and UHMWPE:

[0093] Add 10kg (graphene accounts for 0.2wt% of UHMWPE of UHMWPE) UHMWPE powder and 1.17kg white oil in the graphene / white oil slurry that above-mentioned method obtains, make pre-spinning liquid, enter in the swelling kettle and be heated up to 100 ℃, again After dissolvi...

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Abstract

The invention discloses a preparation method of a white oil sizing agent of composite graphene. The preparation method comprises the following steps: 1) adding a component A and a component B into white oil, heating the mixture with stirring till the component A and the component B are fully dissolved to form a uniform solution, and naturally cooling the solution to room temperature, wherein the component A is an antioxidant, and the component B is a dispersing agent and / or a modifying agent; 2) stirring graphene powder at a high speed andat room temperature, adding the graphene powder into the solution prepared in the step 1), and continuously stirring till a uniformly-dispersed graphene / white oil sizing agent is formed.

Description

technical field [0001] The invention relates to a graphene white oil slurry and a preparation method thereof, in particular to a graphene white oil slurry for improving UHMWPE fibers and a preparation method thereof, belonging to the technical field of organic-inorganic composite materials. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber, also known as ultra-high-strength polyethylene (UHMWPE) fiber, ultra-high modulus polyethylene (UHMWPE) fiber. Because UHMWPE has the necessary structural characteristics toward stretch orientation, it has unrivaled ultra-high tensile strength, so fibers with ultra-high elastic modulus and strength can be prepared by gel spinning, and its tensile strength is as high as 3 ~3.5GPa, the tensile modulus of elasticity is as high as 100~125GPa; the fiber specific strength is the highest among all fibers that have been commercialized so far, 4 times larger than carbon fiber, 10 times larger than steel wire, an...

Claims

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Application Information

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IPC IPC(8): D01F1/10D01F6/46D01D5/08D01D5/12D01D5/30D01D10/02
CPCD01D5/08D01D5/12D01D5/30D01D10/02D01F1/10D01F6/46Y02E60/10
Inventor 许健君孙丹萍周洁徐阳瞿研
Owner 南通恒尚新材料科技有限公司
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