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 disper

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)

Examples

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Example Embodiment

[0060] In another embodiment of the present invention, a method for preparing a white oil slurry of graphene includes:

[0061] 1) Pretreatment of white oil

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

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

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

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

[0066] Under stirring conditions, first heat to the first temperature, keep for 0.2~3h, then heat up to the second temperature and keep for 2~15h to form a uniform solution, wherein the se...

Example Embodiment

[0082] Example 1:

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

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

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

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

[0087] Add 20kg (graphene accounts for 0.1wt% of UHMWPE) UHMWPE powder and 102.26kg of white oil to the white oil slurry obtained by the above method to make a pre-spinning solution, enter the swelling kettle and raise the temperature to 100°C, and then pass through the dissolving kettle , Fee...

Example Embodiment

[0088] Example 2, such as figure 1 :

[0089] Preparation of white oil slurry:

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

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

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

[0093] Add 10kg (graphene accounts for 0.2wt% of UHMWPE) UHMWPE powder and 1.17kg white oil to the graphene / white oil slurry obtained by the above method to make a pre-spinning solution, which is then heated to 100°C in the swelling kettle, and then After dissolving kettle, feeding kettle and...

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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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