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Polymer surface decoration wear-resistant coating and preparation method thereof

A wear-resistant coating and surface decoration technology, applied in the field of decorative wear-resistant coatings on polymer surfaces and their preparation, can solve problems such as large differences in thermal expansion coefficients, large differences in mechanical properties, and difficult fire control, and achieve excellent bearing capacity. Ability, mechanical properties matching, the effect of not easy to crack

Pending Publication Date: 2021-10-22
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, the shortcomings of the traditional wet electroplating process are: high water consumption and energy consumption; discharge of a large amount of waste water containing heavy metal ions, cyanide, acid and alkali and organic pollutants to the environment, as well as various types of acid mist and dust. Toxic exhaust gas; it is easy to cause fire and cause heavy losses, and because there are a lot of chemical substances on site, the fire is difficult to control and it is easy to explode, which is extremely harmful
However, the polymer material is soft, and the chromium coating is hard and brittle. The mechanical properties and thermal expansion coefficients of the two are very different. How to use PVD technology to obtain a silver-white metallic coating with a complete structure and excellent bonding force has become a technical challenge. One of the difficulties; on the other hand, the thickness of PVD coating is less than one tenth of that of electroplated chrome coating. How to rely on ultra-thin coatings to improve the surface wear resistance of soft substrates is another technical difficulty

Method used

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  • Polymer surface decoration wear-resistant coating and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0038] In the present embodiment, the PC substrate surface is processed as follows sequentially:

[0039] (1) Place the base material in a vacuum cavity, pass argon gas into the cavity, and use the anode layer ion source to pre-treat the base material;

[0040](2) Introduce argon gas and nitrogen gas into the chamber with a flow ratio of 5:1, and open the chromium target and copper target for co-deposition at the same time. The copper target and the chromium target are connected to the center of the chamber respectively, and The angle between them is 40 degrees, the substrate is located on the line connecting the chromium target and the center of the cavity, and the distance from the target is 13 cm. The chromium target adopts a high-power pulse power supply, the copper target adopts a DC power supply, the sputtering power of the chromium target is 2500W, the sputtering power of the copper target is 300W, and the background vacuum degree of the vacuum chamber is 2×10 -5 Torr,...

Embodiment 2

[0043] In the present embodiment, the surface of the ABS substrate is sequentially processed as follows:

[0044] (1) Place the base material in a vacuum cavity, pass argon gas into the cavity, and use the anode layer ion source to pre-treat the base material;

[0045] (2) Introduce argon gas and nitrogen gas into the chamber with a flow ratio of 5:1, and open the chromium target and copper target for co-deposition at the same time. The copper target and the chromium target are connected to the center of the chamber respectively, and The angle between them is 40 degrees, the substrate is located on the line connecting the chromium target and the center of the cavity, and the distance from the target is 13 cm. The chromium target adopts a high-power pulse power supply, the copper target adopts a DC power supply, the sputtering power of the chromium target is 3000W, the sputtering power of the copper target is 400W, and the background vacuum degree of the vacuum chamber is 3×10 ...

Embodiment 3

[0048] In the present embodiment, the surface of the PEEK substrate is sequentially processed as follows:

[0049] (1) Place the base material in a vacuum cavity, pass argon gas into the cavity, and use the anode layer ion source to pre-treat the base material;

[0050] (2) Introduce argon and nitrogen into the cavity with a flow ratio of 10:1, and simultaneously open the chromium target and the copper target for co-deposition. The copper target and the chromium target are respectively connected to the center of the cavity, and The angle between them is 60 degrees, the substrate is located on the line connecting the chromium target and the center of the cavity, and the distance from the target is 15 cm. The chromium target adopts a high-power pulse power supply, the copper target adopts a DC power supply, the sputtering power of the chromium target is 3500W, the sputtering power of the copper target is 500W, and the background vacuum degree of the vacuum chamber is 4×10 -5 To...

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Abstract

The invention discloses a polymer surface decoration wear-resistant coating which comprises a polymer and a wear-resistant coating formed on the surface of the polymer. The wear-resistant coating is a Cr / Cu / N nano composite structure coating, wherein Cr exists in the form of a nanocrystalline structure, and Cu and N exist in the Cr nanocrystalline structure in the form of solid solution, wherein the atomic percentage content of the Cu element is 10-15 percent, the atomic percentage content of the N element is 10-20 percent, and the atomic percentage content of the Cr element is 65-80 percent. The polymer surface decoration wear-resistant coating has the advantages of relatively high hardness, wear resistance, long service life, relatively high binding force with a polymer substrate and metal color. The invention also provides a preparation method for the polymer surface decoration wear-resistant coating. The preparation method can be used for preparing the Cr / Cu / N nano composite structure coating of a compact structure.

Description

technical field [0001] The invention relates to a material surface treatment technology, in particular to a decorative wear-resistant coating on a polymer surface and a preparation method thereof. Background technique [0002] As an important basic material juxtaposed with steel and glass ceramics, polymer polymer materials are closely related to people's daily life. Most electromechanical products and their supporting materials are made of polymers. The unique structure of polymer materials and the characteristics of easy modification and processing make them have incomparable and irreplaceable excellent properties of other materials, so they are widely used in Science and technology, national defense construction and various fields of national economy have become indispensable materials in all aspects of basic necessities of life in modern society. [0003] Polymer materials are materials composed of compounds with relatively high molecular weights, including rubber, plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/20C23C14/02
CPCC23C14/352C23C14/205C23C14/0036C23C14/3485C23C14/022C23C14/0015
Inventor 张栋汪爱英张亚东柯培玲陈仁德
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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