CN-121992339-A - Method for processing film coating of mirror frame with waterproof and sun-proof capabilities

Abstract

The invention relates to the technical field of mirror frame processing and discloses a mirror frame film plating processing method with waterproof and sun-proof capabilities, which comprises the following steps of S1, cleaning and plasma processing of a mirror frame base material, S2, coating a silicon dioxide base film by a magnetron sputtering method, S3, coating a waterproof and sun-proof composite film formed by mixing nano titanium dioxide and an organosilicon waterproofing agent by a spraying method, S4, coating a silicon dioxide-aluminum oxide composite protective layer by a sol-gel method, and S5, performing natural aging processing on a mirror frame after film plating. The invention adopts plasma pretreatment and multilayer coating structure design, obviously improves the binding force between the coating and the base material of the mirror frame, effectively solves the problem of coating spalling, and ensures that the mirror frame has excellent waterproof and sun-proof performances simultaneously due to the synergistic effect of the nano titanium dioxide and the organosilicon waterproof agent.

Inventors

• ZHAO ZUOYUAN
• ZHOU TING

Assignees

• 泰昱(厦门)光学有限公司

Dates

Publication Date

20260508

Application Date

20260211

Claims (7)

1. 1. A method for processing a film coating of a mirror frame with waterproof and sun-proof capabilities is characterized by comprising the following steps: s1, cleaning and plasma treating a mirror frame substrate; s2, coating a silicon dioxide bottom film by using a magnetron sputtering method; S3, coating a waterproof sun-proof composite film formed by mixing nano titanium dioxide and an organosilicon waterproof agent by adopting a spraying method; s4, coating a silicon dioxide-aluminum oxide composite protective layer by adopting a sol-gel method; S5, carrying out natural aging treatment on the mirror frame after film coating.
2. 2. The method for processing the film plating of the mirror frame with the waterproof and sun-proof capabilities according to claim 1, wherein the plasma treatment process parameters are that the vacuum degree is 10-20Pa, the argon plasma power is 80-120W, and the treatment time is 5-8 minutes.
3. 3. The method for processing the film plating of the mirror frame with the waterproof and sun-proof capabilities according to claim 1, wherein the technological parameters of coating the silicon dioxide base film by a magnetron sputtering method are that the sputtering power is 150-200W, the sputtering time is 15-20 minutes, and the thickness of the base film is 50-80nm.
4. 4. The method for processing the waterproof and sun-proof composite film for the glasses frame, which is disclosed in claim 1, is characterized in that the preparation process parameters of the waterproof and sun-proof composite film are that the mass ratio of nano titanium dioxide (particle size of 20-40 nm) to organosilicon waterproofing agent is 1 (0.5-1.5), the solid content of the plating film liquid is 5-8% (the solvent is the mixed liquid of ethanol and deionized water, the volume ratio is 1:1), the spraying pressure is 0.3-0.5MPa, the spraying distance is 15-20cm, the drying temperature is 80-100 ℃, the drying time is 10-15 minutes, and the composite film thickness is 100-150nm.
5. 5. The method for processing the film plating of the mirror frame with the waterproof and sun-proof capabilities according to claim 1, wherein the preparation process parameters of the silicon dioxide-aluminum oxide composite protective layer are that the molar ratio of tetraethoxysilane to aluminum isopropoxide to ethanol is 1 (0.2-0.5): 5-8, the pH value is regulated to 2-3 by hydrochloric acid, the stirring time is 2-3 hours to form sol, the thickness of the coating is 30-50nm, the heat treatment temperature is 150-200 ℃, and the heat treatment time is 20-30 minutes.
6. 6. The method for processing the film coating of the mirror frame with the waterproof and sun-proof capabilities according to claim 1, wherein the natural aging treatment is that the mirror frame is placed at room temperature for 24 hours.
7. 7. The method for coating a mirror frame with waterproof and sun-proof capabilities according to claim 1, wherein the mirror frame base material is metal, plastic or composite material.

Description

Method for processing film coating of mirror frame with waterproof and sun-proof capabilities Technical Field The invention relates to the technical field of mirror frame processing, in particular to a mirror frame film plating processing method with waterproof and sun-proof capabilities. Background Under the background of modern fashion and practical requirements, the glasses frame is used as an important wearing accessory and vision correction tool and is widely applied to various scenes such as daily life, outdoor exercises, special operations and the like. Whether it is daily commute, off-shore vacation, or outdoor activities such as mountain climbing, riding, etc., the frame needs to face different environmental challenges, with waterproof and sun screening being key performance indicators. For example, in humid environments such as swimming or rainy days, if the waterproof performance of the glasses frame is poor, water vapor easily enters into gaps between lenses and the glasses frame to influence the vision definition, even rust and damage to internal parts of the glasses frame are caused, and under outdoor strong sunlight, ultraviolet rays can accelerate aging and fading of materials of the glasses frame and damage eyes possibly caused by refraction of edges of the glasses frame. At present, the existing mirror frame coating processing technology has obvious defects. On one hand, the traditional coating process usually only pays attention to waterproof or sun-proof functions singly, effective cooperative lifting of the traditional coating process and the sun-proof functions is difficult to realize, the binding force between the coating and the base material of the mirror frame is weak, and the phenomenon of coating spalling easily occurs after long-term use. On the other hand, the coating materials adopted in part of the process have poor environmental protection and contain volatile harmful substances, and can cause adverse effects on the health and environment of operators in the processing process. Meanwhile, the existing technology has insufficient precision in the aspects of coating thickness control and uniformity, so that the waterproof and sun-proof performances of different parts of the mirror frame have larger difference, and the requirements of high-quality products cannot be met. Therefore, development of a novel film plating processing method capable of remarkably improving the waterproof and sun-proof capabilities of the mirror frame, enhancing the film plating binding force and improving the environmental protection and process precision has urgent practical demands and important application values. Disclosure of Invention The invention aims to solve the problems and provides a method for processing a film coating of a mirror frame with waterproof and sun-proof capabilities. In order to achieve the above purpose, the present invention adopts the following technical scheme: a method for processing a film coating of a mirror frame with waterproof and sun-proof capabilities comprises the following steps: S1, cleaning a mirror frame substrate (such as metal, plastic or composite material) to be coated, firstly cleaning the mirror frame substrate by deionized water for 10-15 minutes by ultrasonic waves, removing oil stains and dust on the surface, and then wiping and drying the mirror frame substrate by absolute ethyl alcohol. Then carrying out plasma treatment, and carrying out argon plasma treatment for 5-8 minutes with the power of 80-120W in an environment with the vacuum degree of 10-20Pa to activate the surface of the mirror frame and improve the adhesive force of the coating film; s2, coating a silicon dioxide base film by using a magnetron sputtering method, wherein the sputtering power is 150-200W, the sputtering time is 15-20 minutes, and the thickness of the base film is controlled to be 50-80nm. The silicon dioxide has good chemical stability and optical transparency, can be used as a base layer of a waterproof sun-proof coating film, and can enhance the binding force between a subsequent coating film and a substrate; S3, mixing nano titanium dioxide (particle size of 20-40 nm) with an organosilicon waterproofing agent according to a mass ratio of 1 (0.5-1.5), and adding the mixture into a mixed solvent of ethanol and deionized water (volume ratio of 1:1) to prepare a coating liquid with a solid content of 5-8%. Uniformly coating the coating liquid on the surface of the base film by adopting a spraying method, wherein the spraying pressure is 0.3-0.5MPa, the spraying distance is 15-20cm, and then drying for 10-15 minutes at 80-100 ℃ to form the waterproof sun-proof composite film with the thickness of 100-150 nm. The nano titanium dioxide has excellent ultraviolet shielding capability, the organosilicon waterproofing agent can form a hydrophobic layer on the surface of the mirror frame, the waterproof function is realized, and the waterproof sun-proof performance can be cooper