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Composite material with nickel-based super-hydrophobic nano CeO2 composite coating and preparation method of composite material

A composite coating and composite material technology, applied in coatings, electrolytic coatings, etc., can solve problems such as corrosion and cracking of metal materials, ordinary Ni-P coating cannot meet the requirements of industrial production and use of metal pipes, and ordinary Ni-P coating pitting corrosion.

Pending Publication Date: 2021-08-03
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In most metal plumbing systems, there is Cl in solution - and HCO 3 - Anions that are seriously harmful to metal corrosion, these ions have a serious impact on the use and production of metal materials, and can easily lead to pitting corrosion of ordinary Ni-P coatings and even corrosion and cracking of metal materials, making ordinary Ni-P The coating cannot meet the requirements of industrial production and use of metal pipes

Method used

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  • Composite material with nickel-based super-hydrophobic nano CeO2 composite coating and preparation method of composite material
  • Composite material with nickel-based super-hydrophobic nano CeO2 composite coating and preparation method of composite material
  • Composite material with nickel-based super-hydrophobic nano CeO2 composite coating and preparation method of composite material

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Experimental program
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preparation example Construction

[0028] The invention has nickel-based super-hydrophobic nano-CeO 2 The preparation method of the composite material of composite coating comprises the following steps:

[0029] (1) Substrate pretreatment: mechanical grinding and polishing of the workpiece → ultrasonic degreasing of lye → water washing → activation of sulfuric acid → water washing, wherein the composition of the degreasing lye is: 5-15g / L NaOH, 20-35g / L NaOH 2 CO 3 , 10~25g / L Na 3 PO 4 12H 2 O, ultrasonic degreasing time is 30-50min, temperature is 20-25°C; use 0.3-0.7mol / L sulfuric acid for sulfuric acid activation.

[0030] (2) Ni-P-CeO 2 Plating solution configuration: Nickel sulfate (NiSO 4 ·6H 2 O); nickel chloride (NiCl 2 ·6H 2 O); boric acid (H 3 BO 3 ); phosphorous acid (H 3 PO 3 ); Citric acid; Thiourea; Sodium dodecylbenzenesulfonate (SDBS); Ammonium chloride (NH 4 Cl) obtain Ni-P alloy plating solution after fully stirring and dissolving in a beaker; Nano CeO 2 After the particles are ...

Embodiment 1

[0036] This embodiment has nickel-based superhydrophobic nano-CeO 2 The preparation method of the composite material of composite coating comprises the following steps:

[0037] (1) Preparation of 1L Ni-P-CeO 2 Plating solution: weigh 2g nano-CeO with an electronic balance 2 ;100g NiSO 4 ·6H 2 O; 20gNiCl 2 ·6H 2 O; 15g H 3 PO 3 ; 20g H 3 BO 3 ; 60g citric acid; 0.05g thiourea; 0.05g sodium dodecylbenzene sulfonate; 20g ammonium chloride was slowly added to a beaker with an appropriate amount of deionized water, stirred evenly and then added deionized water to settle to 1L to obtain Ni -P-CeO 2 Alloy plating solution, stand for use.

[0038] (2) Grind and polish the X100 steel base with a size of 8mm×8mm×3mm with #120 to #1500 water sandpaper to remove the oxide layer on the surface of the X100 steel base, and then clean the polished X100 base steel with deionized water Clean and blow dry. The reuse composition is 10g / L NaOH, 30g / L NaOH 2 CO 3 , 20g / L Na 3 PO 4...

Embodiment 2

[0043] This embodiment has nickel-based superhydrophobic nano-CeO 2 The preparation method of the composite material of composite coating comprises the following steps:

[0044] (1) Preparation of 1L Ni-P-CeO 2 Plating solution: weigh 3g nano-CeO with an electronic balance 2 ;110g NiSO 4 ·6H 2 O; 25gNiCl 2 ·6H 2 O; 20g H 3 PO 3 ;30g H 3 BO 3 ; 70g citric acid; 0.07g thiourea; 0.07g sodium dodecylbenzenesulfonate; 25g ammonium chloride was slowly added to a beaker with an appropriate amount of deionized water, stirred evenly, and then added deionized water to settle to 1L to obtain Ni -P-CeO 2 Alloy plating solution, stand for use.

[0045] (2) Grind and polish the X100 steel base with a size of 8mm×8mm×3mm with #120 to #1500 water sandpaper to remove the oxide layer on the surface of the X100 steel base, and then clean the polished X100 base steel with deionized water Clean and blow dry. The reuse composition is 10g / L NaOH, 30g / L NaOH 2 CO 3 , 20g / L Na 3 PO 4 ...

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Abstract

The invention discloses a composite material with a nickel-based super-hydrophobic nano CeO2 composite coating and a preparation method of the composite material. The preparation method comprises the following steps that a nickel electrode serves as an anode, a substrate serves as a cathode, a Ni-P-CeO2 plating solution serves as an electroplating solution for electroplating, and the Ni-P-based nano CeO2 composite coating is prepared on the surface of the substrate; and the Ni-P-based nano CeO2 composite coating is cleaned and subjected to low surface energy treatment, then the Ni-P-based nano CeO2 composite coating obtained after low surface energy treatment is subjected to heat treatment, and the composite material with the nickel-based super-hydrophobic nano CeO2 composite coating is obtained. The nickel-based super-hydrophobic nano CeO2 composite coating on the composite material disclosed by the invention has good hydrophobicity and good corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment and modification, in particular to a nickel-based superhydrophobic nano-CeO 2 Composite material for composite coating and preparation method thereof. Background technique [0002] With the rapid development of domestic industry, the requirements for the use of materials are getting higher and higher. Metal pipes have been in service in various types of environments for a long time, making steel corrosion the main reason that threatens the safe operation of production and life and leads to corrosion and perforation of pipes. Due to the high surface energy and good hydrophilicity of metal materials, it is easy to corrode when in contact with the humid medium in the surrounding environment. The Ni-P coating has high hardness and strong wear resistance and corrosion resistance, making it a corrosion-resistant metal material. one of the important means. In most metal plumbing systems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00C25D3/56C25D5/50C25D5/48
CPCC25D15/00C25D3/562C25D5/50C25D5/48
Inventor 张秋利宋子月廖文治周军冯艺陈朝阳吴雷
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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