Preparation method of carbon microsphere/polymethyl methacrylate/polyethyleneimine nanocomposite with double shell-core structure

A technology of polymethyl methacrylate and methyl methacrylate, which is applied in the field of nanomaterials and can solve problems that do not conform to the concept of green development and complex preparation processes

Active Publication Date: 2021-08-31
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing preparation of polymer-inorganic composite materials usually requires the addition of emulsifiers or crosslinking agents, which makes the preparation process complicated and does not conform to the concept of green development

Method used

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  • Preparation method of carbon microsphere/polymethyl methacrylate/polyethyleneimine nanocomposite with double shell-core structure
  • Preparation method of carbon microsphere/polymethyl methacrylate/polyethyleneimine nanocomposite with double shell-core structure
  • Preparation method of carbon microsphere/polymethyl methacrylate/polyethyleneimine nanocomposite with double shell-core structure

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preparation example Construction

[0031] A kind of preparation method that has double shell-core structure carbon microsphere / polymethyl methacrylate / polyethyleneimine nanocomposite material, comprises the following steps:

[0032] 1) Using glucose solution as the carbon source, through hydrothermal reaction, the temperature of the 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 the glucose solution is 50mg / mL;

[0033] 2) Dissolve the dry carbon microspheres in a mixed solution of deionized water and absolute ethanol (the volume ratio of deionized water and absolute ethanol is 5:4), and every 90mL of deionized water and absolute ethanol Add 0.2g of carbon microspheres into the solution, and then add the mixed solution of silane coupling agent and absolute ethanol (the silane coupling agent uses KH550, the mixed solution of silane coupling agent and absolute ethanol is...

Embodiment 1

[0040] 1) Prepare a glucose solution with a concentration of 50 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;

[0041] 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;

[0042] 3) The dried modified carbon microspheres, water and methyl methacrylate were formulated into solution A, wherein the concentration of modified carbon microspheres in solution A was 5 mg / mL, and the amount of methacrylic acid mechanism added was modified 0.25wt% of the mass of carbon microspheres, ...

Embodiment 2

[0046] 1) Prepare a glucose solution with a concentration of 50 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;

[0047] 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;

[0048] 3) The dried modified carbon microspheres, water and methyl methacrylate were formulated into solution A, wherein the concentration of modified carbon microspheres in solution A was 6 mg / mL, and the amount of methacrylic acid mechanism added was modified 0.25wt% of the mass of carbon microspheres, ...

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Abstract

The invention discloses a preparation method of a carbon microsphere / polymethyl methacrylate / polyethyleneimine nanocomposite material with a double shell-core structure. The carbon microsphere is obtained by hydrothermal reaction using glucose solution as a carbon source Dissolve carbon microspheres in a mixed solution of water and absolute ethanol, add a mixed solution of silane coupling agent and absolute ethanol, and react under condensing and reflux heating conditions to obtain modified carbon microspheres; Microspheres, water and methyl methacrylate are made into a solution, which is called solution A; the mixed aqueous solution of polymethyl methacrylate and polyethyleneimine is prepared, which is called solution B; solution B is added to solution A to obtain Solution C; tert-butyl hydroperoxide is added to solution C and heated for reaction; after the reaction is completed, the product is filtered, centrifuged, washed and dried to obtain carbon microspheres / polymethacrylic acid with a double shell-core structure Methyl ester / polyethyleneimine nanocomposites.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to a preparation method of a carbon microsphere / polymethyl methacrylate / polyethyleneimine nanocomposite material with a double shell-core structure. Background technique [0002] With the development of nanomaterial preparation and application technology, the research, development and application of nanomaterial-containing 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 lub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F292/00C08L79/02C08K9/10C08K9/06C08K7/18
CPCC08L33/12C08L79/02C08K9/10C08K9/06C08K7/18
Inventor 费杰谷岳峰张立洁屈蒙李盟郑欣惠赵蓓周曼
Owner SHAANXI UNIV OF SCI & TECH
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