Preparation method and corrosion-preventing implementation method of super-hydrophobic sponge material

A technology of superhydrophobic sponge and implementation method is applied in the fields of preparation of superhydrophobic sponge material and long-term metal anticorrosion, which can solve problems such as loss of superhydrophobicity, and achieves convenient large-scale industrial production, low cost, and simple design structure. Effect

Active Publication Date: 2016-07-27
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional super-hydrophobic material is a film material, which is prepared by electrochemical in-situ growth and chemical vapor deposition methods. Since the contained gas phase is a limited amount, it will gradually disappear as the soaking time prolongs, thus Loss of superhydrophobic properties

Method used

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  • Preparation method and corrosion-preventing implementation method of super-hydrophobic sponge material
  • Preparation method and corrosion-preventing implementation method of super-hydrophobic sponge material
  • Preparation method and corrosion-preventing implementation method of super-hydrophobic sponge material

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Experimental program
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Effect test

Embodiment 1

[0040] Embodiment one (best embodiment)

[0041] 1. Preparation of superhydrophobic sponge material:

[0042] 1) Soak a 2cm×2cm×2.5cm melamine sponge in acetone and absolute ethanol in sequence for ultrasonic cleaning to remove sponge impurities, take it out and air dry it for 4 hours, and set aside;

[0043]2) Soak the melamine sponge treated in step 1) in the hydrophobic modifier solution, control the soaking time for 24h, make the hydrophobic modifier adhere to the surface of the melamine sponge, and the solvent in the hydrophobic modifier solution is n-hexane alkane, the hydrophobic modifier is dodecyl trichlorosilane, and the hydrophobic modifier solution is mixed with n-hexane and dodecyl trichlorosilane with a volume ratio of 1:9;

[0044] 3) After taking out the melamine sponge treated in step 2), air-dry it naturally for 8 hours to obtain a superhydrophobic sponge material.

[0045] 2. Performance test of superhydrophobic sponge material

[0046] SEM morphology obs...

Embodiment 2

[0065] 1) Soak a 2cm×2cm×2.5cm melamine sponge in acetone and absolute ethanol in sequence for ultrasonic cleaning to remove sponge impurities, take it out and air dry it for 4 hours, and set aside;

[0066] 2) Soak the melamine sponge treated in step 1) in the hydrophobic modifier solution, control the soaking time to 30h, make the hydrophobic modifier adhere to the surface of the melamine sponge, and the solvent in the hydrophobic modifier solution is ethanol , the hydrophobic modifier is n-octyltrichlorosilane, and the hydrophobic modifier solution is formed by mixing ethanol and n-octyltrichlorosilane with a volume ratio of 1:5;

[0067] 3) After taking out the melamine sponge treated in step 2), air-dry it naturally for 6 hours to obtain a superhydrophobic sponge material.

Embodiment 3

[0069] 1) Soak a 2cm×2cm×2.5cm melamine sponge in acetone and absolute ethanol in sequence for ultrasonic cleaning to remove sponge impurities, take it out and air dry it for 4 hours, and set aside;

[0070] 2) Soak the melamine sponge treated in step 1) in the hydrophobic modifier solution, control the soaking time for 10h, make the hydrophobic modifier adhere to the surface of the melamine sponge, and the solvent in the hydrophobic modifier solution is three Chloromethane, the hydrophobic modifier is n-decyltrichlorosilane, and the hydrophobic modifier solution is mixed with chloroform and n-decyltrichlorosilane at a volume ratio of 1:100;

[0071] 3) After taking out the melamine sponge treated in step 2), air-dry it naturally for 12 hours to obtain a superhydrophobic sponge material.

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Abstract

The invention provides a preparation method and a corrosion-preventing implementation method of a super-hydrophobic sponge material and belongs to the field of metal corrosion protection. The method comprises the steps that a soaking method is adopted to modify organosilane on the surface of melamine sponge and change the hydrophilic sponge into super-hydrophobic sponge, the bulked super-hydrophobic sponge serves as a coverage layer attached to the metal surface, a seawater phase and a metal phase are isolated, an air pump is utilized to delivery dried air to the metal surface and the bulked super-hydrophobic sponge, and a ventilating-super-hydrophobic sponge comprehensive corrosion-preventing system is established innovatively. The super-hydrophobic sponge material is characterized in that the super-hydrophobic sponge can convert underwater complicated seawater corrosion reaction into oxygen and water participated atmospheric corrosion reaction. The water vapor in a sponge structure can be further carried away by adopting a ventilation method, the moisture in the sponge is brought out through flowing of the dried air, accordingly a dried state inside the sponge is kept, complicated seawater corrosion reaction is finally converted into dried air participated slow oxidation reaction, and accordingly metal corrosion prevention is achieved.

Description

technical field [0001] The invention relates to the field of metal corrosion protection in seawater environment, in particular to the preparation of a superhydrophobic sponge material and a method for using the superhydrophobic sponge as an anticorrosion layer under aeration conditions to realize long-term metal anticorrosion. Background technique [0002] The superhydrophobic wettability inspired by the lotus leaf effect has attracted extensive attention from researchers in different fields in the past two decades. In essence, superhydrophobicity is a wetting phenomenon in which the contact angle between water droplets and the surface is greater than 150° due to the combined effect of hydrophobicity and roughness. Its unique properties endow it with many uses, such as the characteristics of alienating water droplets on the surface, and its superhydrophobicity has excellent performance in anti-fog and self-cleaning. [0003] Human exploration and development of the ocean re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C23F15/00
CPCC08J9/40C08J2361/28C23F15/00
Inventor 邱日房亚杰侯健
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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