A preparation method of a graphene covered magnesium hydroxide nanometer composite
A nano-composite material and graphene-coated technology, which is applied in the field of preparation of graphene-coated magnesium hydroxide nano-composite materials, can solve the problems of toxicity restriction promotion and application, and achieve low cost effects
Inactive Publication Date: 2018-11-06
NINGBO UNIVERSITY OF TECHNOLOGY
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[0003] The graphite oxide reduction method is currently the most popular method for preparing graphene. The reducing agents used mainly include hydrazine hydrate, sodium borohydride, p-phenylenediamine, etc. Although these reducing agents can effectively reduce graphene oxide, their huge Toxicity limits promotion and application
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[0020] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0021] A preparation method of graphene-coated magnesium hydroxide nanocomposite material, comprising the following steps: (1) adding graphite oxide GO (0.1-0.5 gram) to 150 milliliters of Na 4 PW 11 VO 40 (0.1-0.3M) solution, stirred at room temperature for 10min at 200rpm;
[0022] (2) Mg(CH 3 COO) 2 (1.0-2.0 g) and 1 g of PS-PEG resin were added to the solution of step (1), adjusted to pH 9-11 with NaOH (0.5M), heated to 60-80°C, and stirred at 300 rpm for 3 hours;
[0023] (3) Cool the solution in step (2) to room temperature, introduce it into a photoreactor, irradiate and react with a YLS-2000 laser, and react for 6 hours to obtain a black emulsion;
[0024] (4) Put the em...
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Abstract
A preparation method of a graphene covered magnesium hydroxide nanometer composite is disclosed. The method includes (1) adding graphene oxide GO into a Na<4>PW<11>VO<40> solution and stirring the mixture at room temperature; (2) adding Mg(CH3COO)2 and PS-PEG resin into the solution, adjusting pH with NaOH, heating the mixture, and stirring the mixture at a constant temperature; (3) preparing a black emulsion through laser radiation and reaction; (4) adding the emulsion into a water / n-butanol mixture, and performing ultrasonic treatment and suction filtration to obtain filter cake; and (5) subjecting the filter cake to vacuum drying and grinding to obtain a product that is the graphene covered magnesium hydroxide nanometer composite. The method is low in cost, simple and convenient, no photocatalyst or reductant is needed, and large-scale production of the green and stable graphene covered magnesium hydroxide nanometer composite is achieved.
Description
technical field [0001] The invention relates to a preparation method of a graphene-coated magnesium hydroxide nanocomposite material. Background technique [0002] Magnesium hydroxide is an inorganic flame-retardant filler for polymer-based composite materials with good application prospects, and its market usage is very large. However, the compatibility and dispersibility of magnesium hydroxide and polymer materials are very poor, and adding magnesium hydroxide to polymer materials often seriously affects the mechanical properties and processing properties of materials. Therefore, it is necessary to carry out surface modification treatment to improve its compatibility with the polymer base material, so that the mechanical properties of the filling material will not decrease, and even some of the mechanical properties of the material will be improved. [0003] The graphite oxide reduction method is currently the most popular method for preparing graphene. The reducing agent...
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IPC IPC(8): C08K9/10C08K3/22
CPCC08K3/22C08K9/10C08K2003/2224C08K2201/011
Inventor 彭革
Owner NINGBO UNIVERSITY OF TECHNOLOGY