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High-corrosion-resistance aluminum alloy composite material and preparation method thereof

A high corrosion resistance, composite material technology, applied in anti-corrosion coatings, fire-resistant coatings, polyurea/polyurethane coatings, etc., can solve the problems of limited use, lack of corrosion resistance of aluminum alloys, etc., to prevent oxidation, excellent high temperature resistance and the effect of improving chemical stability and chemical corrosion resistance

Active Publication Date: 2017-09-15
山东创新精密科技有限公司
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  • Application Information

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Problems solved by technology

With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing day by day. With the continuous improvement of science and technology, the performance of aluminum alloys must also be improved to meet people's increasingly high requirements for products. The lack of corrosion resistance of existing aluminum alloys limits its use

Method used

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  • High-corrosion-resistance aluminum alloy composite material and preparation method thereof

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Embodiment 1

[0044] A high-corrosion-resistant aluminum alloy composite material includes an aluminum alloy composite material and a corrosion-resistant coating, and the corrosion-resistant coating is a carborane-liquid fluoropolymer coating.

[0045] The carborane-liquid fluoropolymer is prepared by the following method: the high-pressure reactor is ventilated with nitrogen to replace the atmosphere, and then the carboxyl-terminated liquid fluoropolymer (vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene) is sequentially added under the condition of nitrogen. Copolymer, carboxyl mass percentage content is 2.01%, number average molecular weight Mn=3500, weight average molecular weight Mw=1.6×10 3 ) tetrahydrofuran solution, 1,7-dimethylolcarborane, dicyclohexylcarbodiimide, 4-dimethylaminopyridine, p-toluenesulfonic acid, stirred and reacted at 70°C and 1.0Mpa for 48h , cooled to room temperature, discharging, filtering, and the filtrate was separated by column chromatography, was...

Embodiment 2

[0059] A high-corrosion-resistant aluminum alloy composite material includes an aluminum alloy composite material and a corrosion-resistant coating, and the corrosion-resistant coating is a carborane-liquid fluoropolymer coating.

[0060] The carborane-liquid fluoropolymer is prepared by the following method: the high-pressure reactor is ventilated with nitrogen to replace the atmosphere, and then the carboxyl-terminated liquid fluoropolymer (vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene) is sequentially added under the condition of nitrogen. Copolymer, carboxyl mass percentage content is 2.01%, number average molecular weight Mn=3500, weight average molecular weight Mw=1.6×10 3 ) tetrahydrofuran solution, 1,7-dimethylolcarborane, dicyclohexylcarbodiimide, 4-dimethylaminopyridine, p-toluenesulfonic acid, stirred and reacted at 70°C and 1.0Mpa for 48h , cooled to room temperature, discharging, filtering, and the filtrate was separated by column chromatography, was...

Embodiment 3

[0073] A method for preparing a highly corrosion-resistant aluminum alloy composite material, comprising the following steps:

[0074] (1) Dry the dicarbo-closed-dodecacarborane powder and the raw material powders of aluminum alloy, then put them into a "V" type powder mixer, and mix them at a speed of 35r / min 36h;

[0075] (2) Put the mixed powder obtained in step 1 into a VC high-efficiency mixer, and mix for 60 minutes under the condition of a rotating speed of 120r / min;

[0076] (3) Place the mixed powder obtained in step 1 in a stirring ball mill, fill it with liquid nitrogen, and start ball milling when all the balls are submerged in liquid nitrogen, the ball-to-material ratio is 30:1, and ball mill for 4 to 6 hours;

[0077] (4) Put the composite powder uniformly mixed by ball mill into the prefabricated graphite mold, and carry out surface activation treatment in the plasma activation sintering furnace, the loading time is 3-5min, the voltage is 30kV, and the current ...

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Abstract

The invention belongs to the technical field of high-performance aluminum alloy composite materials and particularly relates to a high-corrosion-resistance aluminum alloy composite material and a preparation method thereof. The high-corrosion-resistance aluminum alloy composite material comprises an aluminum alloy composite material body and a corrosion-resistant coating. The corrosion-resistant coating is a carborane-liquid fluorine polymer coating. The high-corrosion-resistance aluminum alloy composite material has the excellent and high corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of high-performance aluminum alloy composite materials, and in particular relates to a high-corrosion-resistant aluminum alloy composite material and a preparation method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing day by day. With the continuous improvement of science and technology, the performance of aluminum alloys must also be improved to meet people's increasingly high requirements for products. The lack of corrosion resistance of existing aluminum alloys limits its use. [0003] Carborane is formed by replacing two BH units in the icosahedral borane structure with two equally charged...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/05B22F3/105C09D175/04C09D5/08C08G18/62C08F8/42C08F214/22
CPCB22F3/105B22F2003/1051B22F2998/10C08F8/42C08G18/62C09D5/08C09D5/18C09D175/04C22C1/05C22C21/00B22F1/0003B22F2009/043B22F2003/248B22F2003/242C08F214/22
Inventor 崔立新赵晓光成凯马维红
Owner 山东创新精密科技有限公司
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