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Preparation method of graphene oxide reinforced polymethyl methacrylate/carbon microsphere composite material

A technology of polymethyl methacrylate and composite materials, which is applied in the field of nanomaterials, can solve problems such as softening and affecting performance, and achieve the effects of improving service life performance, low equipment requirements, and good dispersion

Active Publication Date: 2020-10-16
SHAANXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, a pure polymer shell is usually composed of a single chemical crosslink, making it prone to internal softening at high temperatures, thereby affecting performance

Method used

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  • Preparation method of graphene oxide reinforced polymethyl methacrylate/carbon microsphere composite material
  • Preparation method of graphene oxide reinforced polymethyl methacrylate/carbon microsphere composite material
  • Preparation method of graphene oxide reinforced polymethyl methacrylate/carbon microsphere composite material

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preparation example Construction

[0029] A preparation method of graphene oxide reinforced polymethyl methacrylate / carbon microsphere composite material, comprising the following steps:

[0030] 1) Using glucose solution as carbon source, through hydrothermal reaction, the temperature of hydrothermal reaction is 180°C, and the time is 12h. After the completion, the product is washed several times, suction filtered, and dried to obtain carbon microspheres. The concentration of glucose solution is 40mg / mL;

[0031] 2) Dissolve the dry carbon microspheres in the mixed solution of water and absolute ethanol (the volume ratio of deionized water and absolute ethanol is 5:4), and every 90mL of the mixed solution of deionized water and absolute ethanol Add 0.2g carbon microspheres, then add the mixed solution of silane coupling agent and absolute ethanol (the silane coupling agent adopts KH550, the mixed solution of silane coupling agent and absolute ethanol is specifically: add 5ml Silane coupling agent), condensed ...

Embodiment 1

[0037] 1) Prepare a glucose solution with a concentration of 40 mg / mL, conduct hot water thermal reaction at 180°C for 12 hours, wash the product several times, filter it with suction, and dry it in an oven at 80°C for 12 hours to obtain carbon microspheres;

[0038]2) Dissolve 0.2g of dry carbon microspheres in a mixed solution of 50ml of deionized water and 40ml of absolute ethanol, add 5ml of silane coupling agent and 20ml of absolute ethanol to prepare the mixed solution, and react at 60°C under reflux conditions After 12 hours, the product was washed several times, filtered with suction, and dried in an oven at 80°C for 12 hours to obtain modified carbon microspheres;

[0039] 3) The modified carbon microspheres after drying, water and methyl methacrylate are made into solution A, wherein the concentration of modified carbon microspheres in solution A is 5 mg / mL, and the addition of methyl methacrylate is modified 0.2wt% of the mass of carbon microspheres, feed nitrogen a...

Embodiment 2

[0043] 1) Prepare a glucose solution with a concentration of 40 mg / mL, conduct hot water thermal reaction at 180°C for 12 hours, wash the product several times, filter it with suction, and dry it in an oven at 80°C for 12 hours to obtain carbon microspheres;

[0044] 2) Dissolve 0.2g of dry carbon microspheres in a mixed solution of 50ml of deionized water and 40ml of absolute ethanol, add 5ml of silane coupling agent and 20ml of absolute ethanol to prepare the mixed solution, and react at 60°C under reflux conditions After 12 hours, the product was washed several times, filtered with suction, and dried in an oven at 80°C for 12 hours to obtain modified carbon microspheres;

[0045] 3) The modified carbon microspheres after drying, water and methyl methacrylate are made into solution A, wherein the concentration of modified carbon microspheres in solution A is 6 mg / mL, and the addition of methyl methacrylate is modified 0.2wt% of the mass of carbon microspheres, feed nitrogen ...

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Abstract

The invention discloses a preparation method of a graphene oxide reinforced polymethyl methacrylate / carbon microsphere composite material. The preparation method comprises the following steps: carrying out a hydrothermal reaction by using a glucose solution as a carbon source to obtain carbon microspheres; dissolving the carbon microspheres in a mixed solution of deionized water and anhydrous ethanol, adding a mixed solution of a silane coupling agent and anhydrous ethanol, carrying out a reaction under a condensation reflux heating condition to obtain modified carbon microspheres; preparing asolution from the modified carbon microspheres, water and methyl methacrylate, marking the solution as a solution A, introducing nitrogen, continuously stirring; preparing a graphene oxide water solution, marking the graphene oxide water solution as a solution B, continuously stirring; adding the uniformly stirred solution B into the uniformly stirred and mixed solution A to obtain a solution C,continuously stirring the solution C until the solution C is uniformly mixed; adding sodium dodecyl benzene sulfonate into the solution C, heating for reaction, and filtering, centrifuging, washing and drying the reaction product to obtain the graphene oxide reinforced polymethyl methacrylate / carbon microsphere composite material.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a preparation method of graphene oxide reinforced polymethyl methacrylate / carbon microsphere composite material. Background technique [0002] With the rapid development of nanotechnology, the research, development and application of nanomaterial lubricating additives have become one of the hotspots at home and abroad. Among them, the assembly of organic-inorganic nanocomposites and related nanotechnology have attracted more and more attention from researchers in the preparation of new nanocomposites. This is due to the synergistic effect between nano-inorganic substances and polymer matrix, which makes polymer / inorganic nanocomposites have many novel characteristics, such as superior mechanical properties, thermal properties and stability, which are shown in the field of high-performance lubricants. great application value. Through the interaction between the pol...

Claims

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Application Information

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IPC IPC(8): C08F292/00C08F220/14C08F2/44C08K3/04
CPCC08F292/00C08F2/44C08K3/042C08F220/14
Inventor 费杰胡舒航朱雅琼王怡婷周曼刘振婷谷岳峰
Owner SHAANXI UNIV OF SCI & TECH
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