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A kind of preparation method of metal protective film with both self-healing function and super-amphiphobic function

A super-amphiphobic, self-healing technology, used in anti-corrosion coatings, devices for coating liquid on surfaces, coatings, etc., can solve the problem of single function of the film layer, and achieve the effect of simple process, convenient operation and excellent protective performance

Active Publication Date: 2022-07-29
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these coatings have a single function and can only solve a certain aspect of the metal service process, but cannot comprehensively and fundamentally solve all the above-mentioned problems.

Method used

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  • A kind of preparation method of metal protective film with both self-healing function and super-amphiphobic function
  • A kind of preparation method of metal protective film with both self-healing function and super-amphiphobic function
  • A kind of preparation method of metal protective film with both self-healing function and super-amphiphobic function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing protective film with both self-healing function and super-amphiphobic function on the surface of AZ31 magnesium alloy, which specifically includes the following steps:

[0024] ①Dipping and pulling to form a film: use a dipping and pulling machine for dipping and pulling to form a film. Immerse the cleaned magnesium alloy workpieces in the #1 dipping solution, pure water, #2 dipping solution, pure water, #3 dipping solution, and pure water at 60°C for 20 minutes each, and the pulling speed is 0.1mm / s. , 5mm / s, 0.2mm / s, 5mm / s, 0.8mm / s, 5mm / s, repeat the above steps 6 times, immerse the workpiece in #1 immersion solution at 60°C for 10 minutes speed to pull out.

[0025] The #1 dipping solution is uniformly mixed by aluminum phosphate solution and commercially available polytetrafluoroethylene emulsion in a volume ratio of 1:3; the configuration process of aluminum phosphate solution is (same for other embodiments): Al(OH) 3 Powder and concentrati...

Embodiment 2、3 and 4

[0035] The preparation steps, performance and function test methods of the protective film are the same as those in Example 1, but the metal materials used as the protective objects are different (see Table 1), the composition of the immersion liquid is different (see Table 1), and the preparation conditions are different (see Table 2) , performance and functional test results vary (see Table 3).

[0036]Table 1 Composition of metal materials and impregnating liquid used in each example

[0037]

[0038] The film preparation conditions corresponding to the examples in Table 2

[0039]

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Abstract

The invention provides a method for preparing a metal protective film with both self-healing function and super-amphiphobic function. The functional metal protective film of the present invention is obtained by dipping and pulling the coating film, followed by curing treatment. The method of the invention is suitable for surface protection of metal materials of various shapes and sizes. The metal protective film prepared by the invention has lasting self-healing function and super-amphiphobic function, which can not only quickly repair mechanical damages such as various scratches and abrasion marks, but also resist the pollution and damage of various environmental media, and has great practical application. Value. The method of the invention has the characteristics of simple process, convenient operation, green environmental protection, easy large-scale industrial processing and the like.

Description

technical field [0001] The invention belongs to the technical field of surface engineering, and in particular relates to a preparation method of a metal protective film with both self-healing function and super-amphiphobic function. Background technique [0002] Aluminum, magnesium, zinc, iron, titanium, nickel, copper and other metals and their alloys are widely used in various fields of the national economy. These metal materials have active chemical properties, are prone to corrosion, and are also prone to mechanical damage such as scratches and wear during use, as well as pollution damage from various environmental media, which seriously affects their service quality and life. [0003] In order to effectively inhibit the corrosion of metal materials, a variety of metal surface protection technologies have emerged. However, the existing metal protective films usually can only inhibit different types of corrosion, but cannot do anything for mechanical damage and pollution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14
CPCB05D7/14B05D7/24B05D7/582B05D5/00C09D127/18C09D7/61C09D133/02C09D179/02C09D5/08B05D2506/15B05D2502/00B05D2518/00B05D2601/20B05D2601/22B05D2202/25B05D2202/20B05D2202/30B05D2202/35B05D2202/45B05D2202/10C08K2003/327B05D2420/01B05D2420/02B05D2420/03C08K3/32C08K3/36
Inventor 李凌杰雷惊雷刘雷武佳乐唐春燕潘嘉燕
Owner CHONGQING UNIV
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