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High polymer material coating process

A polymer material and process technology, applied in the field of polymer material coating technology, can solve the problems of poor wear resistance, yellowing, and reduced transmittance of the optical film layer, and achieves low internal stress, good support, and increased Effect of film thickness

Pending Publication Date: 2022-02-01
深圳市恒鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process method can only use silicon or silicon-oxygen mixed materials as a primer, which will cause the workpiece to be processed to turn yellow before coating the optical film layer, and the transmittance will also decrease
After this method uses silicon or silicon-oxygen mixed material as the primer, the support for the optical film layer on the surface is insufficient, resulting in poor wear resistance of the obtained optical film layer. Therefore, according to this situation, it is necessary to design a polymer material Coating process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The workpiece to be processed can be a metal part (including but not limited to stainless steel, aluminum alloy, magnesium alloy, zinc alloy, copper alloy , titanium alloy), ceramics (including but not limited to zirconia ceramics, alumina ceramics, silicon nitride ceramics, nitrogen Boron oxide ceramics, but silicon oxide ceramics), plastics (including but not limited to PC, PET, PMMA, PA, PC / ABS, POM, PPS, PEI, PBT, etc.) parts, even plastic (including but not limited to PC, PET, PMMA, PA, PC / ABS, POM, PPS, PEI, PBT, etc.) parts themselves.

[0037] Including cleaning and drying steps, vacuuming steps, bombardment steps, silicon nitride oxide film coating steps, optical film coating steps and protective layer coating steps;

[0038] Since the parts to be processed usually have some structural blind holes, small through holes, and reinforcing ribs, it is easy to have dirt residues in the process of processing, so it is necessary to clean the processed parts carefully...

Embodiment 2

[0056] Increase on the basis of embodiment 1:

[0057] 1.8. Steps of plating protective layer (can be used as color decoration layer):

[0058] Option 1: spraying / evaporating AF, spraying or evaporating a layer of AF film (including but not limited to end-group modified perfluoropolyether, film thickness 10-50nm) on the surface of the workpiece to be processed.

[0059] Option 2: Spray the UV protective layer, first spray a layer of PU paint on the surface of the coating as the coating layer (film thickness 5-25um), and then spray the UV protective layer on the PU surface (film thickness 8-30um); or directly on the coating The surface is sprayed with UV protective layer (film thickness 8-30um).

[0060] Option 3: Print / transfer protective layer, print / transfer one or more polymer protective layers (including but not limited to PU ink, UV ink, UV glue) on the coating surface.

[0061] The above film structure can refer to figure 2 .

Embodiment 3

[0063] The difference from the above-mentioned embodiment is that after repeating the vacuuming step and the bombardment step for 2-20 cycles, the following steps are carried out:

[0064] 3.1. The silicon oxynitride film layer is coated, and oxygen is introduced as the source of oxygen in the silicon oxynitride coating. A mixed gas of argon, oxygen and nitrogen is introduced, and argon exists as an auxiliary gas. Oxygen: nitrogen is equal to 1:20 to 1:1, and the atomic number ratio of oxygen and nitrogen is in the range of 1:20-1:1. In other embodiments Among them, the atomic number ratio of oxygen and nitrogen can also be 1:15, 1:12, 1:8, 1:3, adjust the degree of vacuum so that the degree of vacuum is maintained at 0.1Pa, in some embodiments, adjust the degree of vacuum, Keep the vacuum at 0.2Pa, 0.5Pa, 1.2Pa, 1.33Pa. Turn on the power supply of the silicon target (the target power supply adopts an intermediate frequency power supply, the frequency is 40KHz to 170KHz, the ...

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Abstract

The invention relates to a high polymer material coating process comprising the step of coating a silicon oxynitride film layer, the surface of a workpiece to be processed is coated with the silicon oxynitride film layer to serve as a base coat of a follow-up coating layer, and the step of coating the silicon oxynitride film layer comprises the following sub-steps that A1, mixed gas of argon and nitrogen is introduced into a coating chamber, and the ratio of the argon to the nitrogen is 1: 8-3: 1; A2, the vacuum degree is adjusted to range from 0.1 Pa to 1.33 Pa; and A3, a silicon target power source is turned on, the workpiece to be machined is coated with a film, the thickness of the coated film ranges from 2 nm to 200 nm, and the film serves as an interface bonding layer of the silicon oxynitride film and the high polymer material layer of the workpiece to be machined. According to the invention, the silicon oxynitride film layer is used as the base coat and is not yellowish, if the film layer is smaller than 20nm, almost no hue exists, the color of the workpiece to be processed is not changed, and if the thickness of the film layer is larger than 20nm, the base coat can be used as a high-refractive-index film layer in the design of an optical film system.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a polymer material coating process. Background technique [0002] As an important basic material juxtaposed with steel and glass ceramics, polymer materials are closely related to people's daily life. The unique structure of polymer materials and the characteristics of easy modification and processing make it incomparable and irreplaceable by other materials. performance, so it is widely used in various fields of science and technology, national defense construction and national economy, and has become an indispensable material in all aspects of clothing, food, housing and transportation in modern social life. At present, the coating process of polymer materials implemented by domestic and foreign production lines is mostly NCVM process And other conventional coating optical film process; [0003] NCVM process: a common coating process on the market at present, the met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/10C23C14/08C08J7/06
CPCC23C14/0676C23C14/10C23C14/08C23C14/0652C23C14/0021C08J7/06
Inventor 不公告发明人
Owner 深圳市恒鼎新材料有限公司
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