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Preparation method of wave-absorbing material with corrosion resistance

A wave-absorbing material and anti-corrosion technology, applied in the field of wave-absorbing materials, can solve problems such as electromagnetic waves cannot be eliminated, and achieve good anti-corrosion performance

Pending Publication Date: 2021-08-31
广东海粤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of electromagnetic shielding technology is to cut off the propagation path of electromagnetic waves, so as to protect the local space from the influence of electromagnetic wave pollution. Among the many means to solve the problem of electromagnetic wave pollution, electromagnetic shielding is the most basic and effective, but electromagnetic shielding technology cannot eliminate Electromagnetic waves

Method used

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  • Preparation method of wave-absorbing material with corrosion resistance
  • Preparation method of wave-absorbing material with corrosion resistance

Examples

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Effect test

Embodiment 1

[0016] A method for preparing a microwave-absorbing material with anti-corrosion properties, specifically comprising the following steps:

[0017] S1: Mix iron carbonyl and nickel nitrate hexahydrate evenly and place them in a tube furnace, then pass a mixed gas of argon and oxygen with a volume ratio of 90%:10%, preheat and burn at 120°C for 3 hours, and then Put it into hydrogen peroxide, stir for 2 hours, filter, dry, and set aside; the mass ratio of iron carbonyl and nickel nitrate hexahydrate added is 0.66:0.32.

[0018] S2: Put the product obtained in the above step S1 into a ball mill, then add calcium stearate and sodium polyacrylate, add ethanol to start ball milling for 2 hours, add it to the boric acid chasing solution after drying, then add lanthanum nitrate, stir for 3 hours and place In a tube furnace, calcining at 200°C for 1 h under a nitrogen atmosphere to obtain the absorbing material powder; wherein the mass ratio of the product of step S1, calcium stearate ...

Embodiment 2

[0020] A method for preparing a microwave-absorbing material with anti-corrosion properties, specifically comprising the following steps:

[0021] S1: Mix iron carbonyl and nickel acetate tetrahydrate evenly and place them in a tube furnace, then feed a mixed gas of argon and oxygen with a volume ratio of 90%:10%, preheat and burn at 150°C for 5 hours, and then Put it into hydrogen peroxide, stir for 5 hours, filter, dry, and set aside; the mass ratio of iron carbonyl and nickel acetate tetrahydrate added is 0.84:0.44.

[0022] S2: Put the product obtained in the above step S1 into a ball mill, then add calcium stearate and sodium polyacrylate, add ethanol to start ball milling for 4 hours, add it to the boric acid chasing solution after drying, then add lanthanum nitrate, stir for 5 hours and place In a tube furnace, calcining at 300°C for 2 hours under a nitrogen atmosphere to obtain the absorbing material powder; wherein the mass ratio of the product of step S1, calcium ste...

Embodiment 3

[0024] A method for preparing a microwave-absorbing material with anti-corrosion properties, specifically comprising the following steps:

[0025] S1: Mix iron carbonyl and nickel sulfate hexahydrate evenly and place them in a tube furnace, then feed a mixed gas of argon and oxygen with a volume ratio of 90%:10%, preheat and burn at 130°C for 4 hours, and then Put it into hydrogen peroxide, stir for 3 hours, filter, dry, and set aside; the mass ratio of carbonyl iron and nickel sulfate hexahydrate added is 0.75:0.38.

[0026] S2: Put the product obtained in the above step S1 into a ball mill, then add calcium stearate and sodium polyacrylate, add ethanol to start ball milling for 3 hours, add it to boric acid aqueous solution after drying, then add lanthanum nitrate, stir for 4 hours and place in In a tube furnace, calcining at 240°C for 1.5h under a nitrogen atmosphere to obtain the absorbing material powder; wherein the mass ratio of the product of step S1, calcium stearate ...

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PUM

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Abstract

The invention discloses a preparation method of a wave-absorbing material with corrosion resistance, which comprises the following steps: uniformly mixing carbonyl iron and nickel powder, placing an obtained mixture in a tubular furnace, then introducing mixed gas, conducting preheating and firing at 120-150 DEG C for 3-5 hours, then placing the treated material in hydrogen peroxide, conducting stirring for 2-5 hours, then conducting filtering and drying, placing the product obtained in the step S1 in a ball mill, adding calcium stearate and sodium polyacrylate, adding ethanol, starting ball milling for 2-4 hours, conducting drying, adding the dried material into a boric acid solution, adding lanthanum nitrate, conducting stirring for 3-5 hours, putting the stirred material into a tubular furnace, and conducting calcining for 1-2 hours at 200-300 DEG C in a nitrogen atmosphere to obtain the wave-absorbing material powder.

Description

technical field [0001] The invention belongs to the technical field of wave-absorbing materials, and in particular relates to a preparation method of a wave-absorbing material with anti-corrosion performance. Background technique [0002] Since the 20th century, the research and development of various electronic and electrical equipment has greatly increased human productivity and improved human living standards. At the same time, the electromagnetic radiation and interference generated by electrical facilities have also affected human production and life, resulting in The electromagnetic environment in human living space is deteriorating day by day. The extensive application of electromagnetic waves in science and technology has also brought new social problems, and it has become the fourth largest pollution source that is more harmful and difficult to protect after water pollution, air pollution, and noise pollution. Electromagnetic wave pollution not only affects normal ...

Claims

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Application Information

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IPC IPC(8): C08L33/02C08K9/02C08K3/18C08K3/28C08K5/098C08K3/38C08K3/30C08K3/16C08K13/06H01Q17/00
CPCC08K9/02C08K3/18C08K3/28C08K5/098C08K3/38C08K3/30C08K3/16C08K13/06H01Q17/00C08K2003/3045
Inventor 付绍永
Owner 广东海粤新材料有限公司
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