Copper-containing antibacterial self-cleaning coating, preparation method and application thereof

A self-cleaning coating and substrate technology, applied in coatings, metal material coating processes, and devices for coating liquid on the surface, can solve the problems of single antibacterial function of products, long preparation cycle, high equipment requirements, etc., and achieve production Low cost, prevention of microbial adhesion and corrosion, and low equipment requirements

CN110201864AActive Publication Date: 2019-09-06SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-09-06

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Abstract

The invention discloses a copper-containing antibacterial self-cleaning coating, a preparation method and application thereof, and belongs to the technical field of metal material surface treatment. The preparation method comprises the following steps that (1), a ground and polished substrate is immersed in copper-containing working fluid and deposits at room temperature for 20 s-5 min; (2), the deposited substrate is immersed in alkaline working fluid to be processed at room temperature for 20 min-80 min; (3), the alkaline-treated substrate is immersed in a modification solution to be processed at room temperature for 1 h-5 h; and (4), the substrate after treatment by the modification solution is subjected to heat insulation treatment for 0.5 h- 2 h at the temperature of 80-200 DEG C temperature, and the copper-containing antibacterial self-cleaning coating is obtained on the substrate. According to the preparation method of the copper-containing antibacterial self-cleaning coating, the preparation technology is simple, the reaction condition is mild, the requirement for equipment is low, the production cost is cheap, the prepared coating has both antibacterial and self-cleaning functions, the occurrence of microbial attachment and corrosion is effectively prevented, and multiple functions of being antibacterial, anti-sticking and anti-fouling, and preventing corrosion and thelike are simultaneously realized.
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Description

technical field

[0001] The invention relates to the technical field of surface treatment of metal materials, in particular to a copper-containing antibacterial self-cleaning coating, a preparation method and an application thereof. Background technique

[0002] At present, steel is widely used in society, covering construction, machinery, transportation, marine engineering and other fields. The main component of steel is iron, because iron element has no antibacterial effect, thus limiting the antibacterial application of steel. Copper element has antibacterial effect, so in order to expand the antibacterial application prospect of steel, copper-containing antibacterial steel is often prepared.

[0003] The existing copper-containing antibacterial steel technology mainly adopts two strategies. One is alloy composition design, that is, adding copper element during steel smelting to prepare the overall copper-containing steel material. Such a method needs to involve the comp...

Examples

Embodiment 1

[0029] The preparation method of copper-containing antibacterial self-cleaning coating of the present invention comprises:

[0030] (1) After grinding and polishing the substrate, immerse it in the copper-containing processing fluid and deposit it at room temperature for 20s; wherein, the copper-containing processing fluid includes CuSO 4 ·5H 2 O, potassium sodium tartrate, glucose and OP-10; among them, CuSO 4 ·5H 2 The concentration of O is 0.1mol / L; the concentration of potassium sodium tartrate is 0.05mol / L; the concentration of glucose is 0.1mol / L; the concentration of OP-10 is 0.01g / L.

[0031] (2) Submerge the deposited substrate in an alkaline processing solution for 20 minutes at room temperature; wherein, the alkaline processing solution includes: NaOH and (NH 4 ) 2 S 2 o 8 ; Wherein the concentration of NaOH is 1mol / L, (NH 4 ) 2 S 2 o 8 The concentration is 0.1mol / L.

[0032] (3) Submerge the alkaline-treated substrate in a modification solution for 1 hou...

Embodiment 2

[0035] The preparation method of copper-containing antibacterial self-cleaning coating of the present invention comprises:

[0036] (1) After grinding and polishing the substrate, immerse it in the copper-containing processing fluid and deposit it at room temperature for 1 min; wherein, the copper-containing processing fluid includes CuSO 4 ·5H 2 O, potassium sodium tartrate, glucose and OP-10; among them, CuSO 4 ·5H 2 The concentration of O is 0.5mol / L; the concentration of potassium sodium tartrate is 0.1mol / L; the concentration of glucose is 0.3mol / L; the concentration of OP-10 is 0.05g / L.

[0037] (2) Submerge the deposited substrate in an alkaline processing solution for 50 minutes at room temperature; wherein, the alkaline processing solution includes: NaOH and (NH 4 ) 2 S 2 o 8 ; Wherein the concentration of NaOH is 5mol / L, (NH 4 ) 2 S 2 o 8 The concentration is 1mol / L.

[0038] (3) Submerge the alkaline-treated substrate in a modification solution for 3 hour...

Embodiment 3

[0041] The preparation method of copper-containing antibacterial self-cleaning coating of the present invention comprises:

[0042] (1) After grinding and polishing the substrate, immerse it in the copper-containing processing fluid and deposit it at room temperature for 20s-5min; wherein, the copper-containing processing fluid includes CuSO 4 ·5H 2 O, potassium sodium tartrate, glucose and OP-10; among them, CuSO 4 ·5H 2 The concentration of O is 1mol / L; the concentration of potassium sodium tartrate is 0.15mol / L; the concentration of glucose is 0.5mol / L; the concentration of OP-10 is 1g / L.

[0043] (2) Submerge the deposited substrate in an alkaline processing solution for 80 minutes at room temperature; wherein, the alkaline processing solution includes: NaOH and (NH 4 ) 2 S 2 o 8 ; Wherein the concentration of NaOH is 10mol / L, (NH 4 ) 2 S 2 o 8 The concentration is 2mol / L.

[0044] (3) Submerge the alkaline-treated substrate in a modification solution for 5 hour...