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Acid and alkaline resistant micro-nano aluminum powder/porous carbon composite material and synthesis method thereof

A technology of composite materials and synthesis methods, which is applied in the field of acid and alkali-resistant micro-nano aluminum powder/porous carbon composite materials and their synthesis, can solve the problems of difficulty in controlling the size of core-shell particles, difficulty in controlling the shape of products, and small production scale. Achieve the effect of smooth and regular surface, good crystallization and easy control of particle size

Active Publication Date: 2018-01-26
ANHUI AOYA ALLOY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Carbon-coated Al nanoparticles were prepared by laser-induction compound heating method in the atmosphere of CH4 gas and Ar gas. It is beneficial to give full play to the effect of the laser; and then introduce the laser to evaporate the metal rapidly and generate a large temperature and pressure gradient, but these methods still have certain shortcomings. The carbon-coated nano-aluminum powder obtained by these methods has some defects. Alumina and aluminum carbonized impurities exist, the size of core-shell particles is difficult to control, and is easily affected by ambient humidity and temperature to lose activity, high energy consumption, easy to explode, complicated process, expensive equipment, small production scale, and difficult to control product form, etc. technical flaw

Method used

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  • Acid and alkaline resistant micro-nano aluminum powder/porous carbon composite material and synthesis method thereof
  • Acid and alkaline resistant micro-nano aluminum powder/porous carbon composite material and synthesis method thereof
  • Acid and alkaline resistant micro-nano aluminum powder/porous carbon composite material and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An acid and alkali resistant micro-nano aluminum powder / porous carbon composite material, prepared from the following components in weight (kg):

[0041] Aluminum powder 30, phenolic resin 25, ethyl acetate 25, propylene glycol methyl ether acetate 12, carboxymethyl cellulose 6; BYK-3001.5; KH-550 0.3; polyethylene wax 0.2;

[0042] The preparation method includes the following steps:

[0043] (1) First design a composite solvent system, put ethyl acetate and propylene glycol methyl ether acetate into a stirring tank and stir fully, start to adjust the speed to 2000r / min, and control the temperature at 50℃. After the dispersion is even, the stirring speed As low as 500r / min, add carboxymethylcellulose and KH-550 dropwise in sequence under stirring conditions, add polyethylene wax and BYK-300 after cooling to 30°C, and stir for 20 minutes;

[0044] (2) Then add aluminum powder and phenolic resin to the above solvent system in sequence, and ultrasonic dispersion treatment for 45 ...

Embodiment 2

[0047] An acid and alkali resistant aluminum powder / porous carbon composite material, prepared from the following components in weight (kg):

[0048] Aluminum powder 35, epoxy resin 27, acetone 20, palm oil 10, polyacrylamide 5; BYK-331 2; KH-560 0.5; organic bentonite 0.5;

[0049] The preparation method includes the following steps:

[0050] (1) First design a composite solvent system, put the acetone and palm oil into the stirring tank and fully stir, start to adjust the speed 2500r / min, the temperature is controlled at 55℃, after the dispersion is uniform, reduce the stirring speed to 800r / min, add polyacrylamide and KH-560 dropwise in sequence under stirring conditions, add organic bentonite and BYK-331 after cooling to 35℃, and stir for 25 minutes;

[0051] (2) Then add aluminum powder and epoxy resin to the above solvent system in sequence, ultrasonic dispersion treatment for 50 minutes, drying at 90°C for 1.5 hours to obtain aluminum-based precursor;

[0052] (3) Finally, the ...

Embodiment 3

[0054] An acid and alkali resistant micro-nano aluminum powder / porous carbon composite material, prepared from the following components in weight (kg):

[0055] Aluminum powder 40, glucose 20, ethanol 25, Taikoo oil 8, polyethylene glycol 4; 201 methyl silicone oil 2; YB-401 0.7; polyglycerol ricinol ester 0.3;

[0056] (1) First design a composite solvent system, put ethanol and Taikoo oil into the stirring tank and stir thoroughly, start to adjust the speed to 3000r / min, and control the temperature at 60℃. After the dispersion is uniform, reduce the stirring speed to 1000r / min, add polyethylene glycol and YB-401 dropwise in sequence under stirring conditions, add polyglycerol ricinol ester and methyl silicone oil after cooling to 40°C, and stir for 30 minutes;

[0057] (2) Then add aluminum powder and glucose to the above-mentioned composite solvent system in sequence, and ultrasonic dispersion treatment for 60 minutes. Dry at 100°C for 2 hours to obtain an aluminum-based precurs...

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Abstract

The invention discloses an acid and alkaline resistant micro-nano aluminum powder / porous carbon composite material and a synthesis method thereof. The method is mainly characterized in that a composite solvent system is firstly designed to dissolve a carbon precursor and disperse an aluminum powder raw material; 30-50 parts by weight of the composite solvent system are added with the following materials in parts by weight: 30-40 parts of micro-nano aluminum powder and 20-30 parts of a carbon source. The invention further discloses a preparation method for the material, and the material is lessin organic substance volatile matter content, is beneficial for environmental protection, has good acid and alkaline resistance and good wear resistance, is long in service life, is good in storage stability, is simple to operate, and is suitable for large-scale industrial production.

Description

Technical field [0001] The invention relates to the field of composite materials and energetic aluminum powder, in particular to an acid and alkali resistant micro-nano aluminum powder / porous carbon composite material and a synthesis method thereof. Background technique [0002] Ordinary aluminum powder products are widely used in chemical catalysts, pesticides, anti-corrosion materials, metallic flash coatings, conductive coatings, aerated concrete gas generators, steelmaking deoxidizers, refractory materials, thermite alloys, thermal spray composite powders, etc. Nano-scale aluminum materials have special optical properties, electrical properties and chemical reactivity, and are used in high-tech fields such as new rocket propellants, explosives, and solar cells. [0003] Nano aluminum powder has special surface and interface effects. There are more surface atoms, and surface atoms will increase as the particle size of nano aluminum powder decreases; and the specific surface area...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/00B82Y30/00B82Y40/00
Inventor 陈祥迎韩夏陈颖刘忠华许冬许森
Owner ANHUI AOYA ALLOY
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