Method for preparing super-hydrophobic film on ultra-low carbon steel surface

An ultra-low carbon steel, super-hydrophobic technology, applied in the direction of metal material coating process, etc., can solve the problems of difficult modification of the production line, low production cost, large pollution, etc., achieve uniform and irregular morphology, improve corrosion resistance time and effect. Good results

Inactive Publication Date: 2017-07-14
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing processing technology, such as relatively high cost, relatively large pollution, and difficult modification of the production line, the purpose of the present invention is to provide a preparation method that is simple, requires less investment in equipment, has higher deposition efficiency and lower production costs.

Method used

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  • Method for preparing super-hydrophobic film on ultra-low carbon steel surface
  • Method for preparing super-hydrophobic film on ultra-low carbon steel surface
  • Method for preparing super-hydrophobic film on ultra-low carbon steel surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The ultra-low carbon steel substrate is an ultra-low carbon steel plate,

[0067] Step 1: Surface pretreatment of ultra-low carbon steel substrate

[0068] The ultra-low carbon steel substrate is pretreated. The pretreatment steps are: soak the ultra-low carbon steel substrate in alkali solution at 60°C for 5 minutes, take it out and rinse it with deionized water; then place the substrate at a concentration of 0.4mol / Dilute H of L 2 SO 4 Soak in the solution for 40s, after taking it out, rinse it with deionized water;

[0069] Wherein, the lye is composed of the following components Na 2 CO 3 : 20g / L, NaOH: 40g / L, NaOH 4 P 2 o 7 10H 2 O: 100g / L, emulsifier OP-10: 3g / L.

[0070] Step 2: Phosphating treatment

[0071] Immerse the ultra-low carbon steel substrate obtained in step 1 into the composite solution for phosphating treatment, and soak for 5 minutes at a temperature of 55°C; after phosphating, rinse the surface of the ultra-low carbon steel with deioniz...

Embodiment 2

[0077] The ultra-low carbon steel substrate is an ultra-low carbon steel plate.

[0078] Step 1: Same as Example 1.

[0079] Step 2: Phosphating treatment

[0080] Immerse the ultra-low carbon steel matrix obtained in step 1 into the composite solution for phosphating treatment, and soak for 10 minutes at a temperature of 60°C; after phosphating, rinse the surface of the ultra-low carbon steel with deionized water and dry to obtain phosphorus The material matrix after melting,

[0081] Wherein, the composite solution is composed of the following components: zinc dihydrogen phosphate 35g / L, nickel nitrate 9g / L, tartaric acid 1g / L.

[0082] Step three, surface hydrophobic treatment

[0083] The super-hydrophobic film on the surface of the ultra-low carbon steel was obtained by immersing the phosphating ultra-low carbon steel substrate in an ethanol solution of lauric acid with a concentration of 0.02 mol / L for 2 minutes for modification and drying.

[0084] The characteristi...

Embodiment 3

[0086] The ultra-low carbon steel substrate is an ultra-low carbon steel plate.

[0087] Step 1: Same as Example 1.

[0088] Step 2: Phosphating treatment

[0089]Immerse the ultra-low carbon steel matrix obtained in step 1 into the composite solution for phosphating treatment, and soak for 15 minutes at a temperature of 65°C; after phosphating, rinse the surface of the ultra-low carbon steel with deionized water and dry to obtain phosphorus The material matrix after melting,

[0090] Wherein, the composite solution is composed of the following components: zinc dihydrogen phosphate 45g / L, nickel nitrate 10g / L, tartaric acid 2g / L.

[0091] Step three, surface hydrophobic treatment

[0092] The super-hydrophobic film on the surface of ultra-low carbon steel was obtained by immersing the phosphating ultra-low carbon steel substrate in the ethanol solution of myristic acid with a concentration of 0.03mol / L for 2 minutes for modification and drying.

[0093] The characteristics...

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Abstract

The invention relates to a method for preparing a super-hydrophobic film on an ultra-low carbon steel surface, and belongs to the technical field of surface treatment. The method for preparing the super-hydrophobic film on the ultra-low carbon steel surface comprises the steps of first depositing a phosphate coating on the surface of an ultra-low carbon steel substrate with a chemical deposition method, the surface roughness of the ultra-low carbon steel substrate reaches 1.7-2.6 [mu]m; then performing hydrophobic modification for the ultra-low carbon steel substrate with the phosphate coating deposited on the surface using saturated fatty acid with more than 12 carbon atoms. In the invention, a certain phosphate coating and a hydrophobic surface are formed on the substrate, with self-cleaning and anticorrosion functions; the method provided by the invention is widely applied to automobile industry and electrical equipment industry, such as anticorrosion of automobile sheet surfaces as well as corrosion resistance and non-viscosity of home appliance panels, and especially the corrosion resistant time of the treated substrate can be prolonged effectively without influence on the surface.

Description

technical field [0001] The invention relates to a method for preparing a super-hydrophobic film on the surface of ultra-low carbon steel, belonging to the technical field of surface treatment. Background technique [0002] At present, the known ultra-low carbon steel is a new type of steel plate for automobiles, which is characterized in that an appropriate amount of alloying elements are added to the ultra-low carbon steel to form stable compounds with interstitial atoms (C, N) in the steel, as much as possible Minimally reduce the content of interstitial solid solution atoms in steel. This steel has other excellent characteristics such as low yield strength, no strain aging, high elongation, and high plastic strain ratio. Ultra-low carbon steel is a kind of steel with high added value and good deep drawing performance. It is currently the steel plate for automobiles with the best drawing performance. It has been widely used in the manufacturing of automobiles, cans and ot...

Claims

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Application Information

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IPC IPC(8): C23C22/17C23C22/83C23C22/78C23G1/19C23G1/08
CPCC23C22/17C23C22/78C23C22/83C23G1/081C23G1/19
Inventor 刘常升谭隽阳郝俊杰安振强
Owner NORTHEASTERN UNIV
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