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A kind of preparation method of mobile phone nano waterproof film

A technology of waterproof membrane and waterproof membrane layer, applied in metal material coating process, coating, gaseous chemical plating and other directions, can solve the problems of poor ventilation effect of plastic sealing ring, expensive EPTFE material, and toxicity of fluorine element, etc. To achieve the effect of good waterproof effect, good compactness and strong thermal stability

Inactive Publication Date: 2019-02-05
GUANGDONG YINENG NANO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ventilation effect of the plastic sealing ring is not good, and the mobile phone needs to dissipate heat, so the application is hindered
[0007] The third is a waterproof and breathable membrane. Its main raw material is expanded polytetrafluoroethylene EPTFE, a hydrophobic material. It is a high-performance waterproof material with pressure bearing, breathability and non-destructive sound transmission. However, the EPTFE material is expensive, and fluorine is toxic. , causing the market to fail to promote

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A preparation method of a mobile phone nano waterproof membrane, comprising the following steps:

[0055] Mobile phone pre-processing:

[0056] a. Use masking paper to cover and seal the components inside the phone that do not require coating.

[0057] b. Remove the electrostatic tape inside the phone.

[0058] c. Use a cleaning agent to clean the surface to be coated to remove surface dust and residual oil; the cleaning agent is a mixed cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 8:3.

[0059] d. After cleaning, put the mobile phone into the drying oven to dry the residual moisture; the drying temperature is 35°C, and the drying time is 20 minutes.

[0060] Coating treatment:

[0061] 1) Put the mobile phone to be coated into the vacuum coating chamber, heat and evacuate; when the temperature of the evaporation chamber reaches 120°C, turn on the cold pump.

[0062] 2) Put the coating raw material into the evaporation chamber ...

Embodiment 2

[0070] A preparation method of a mobile phone nano waterproof membrane, comprising the following steps:

[0071] Mobile phone pre-processing:

[0072] a. Use masking paper to cover and seal the components inside the phone that do not require coating.

[0073] b. Remove the electrostatic tape inside the phone.

[0074] c. Use a cleaning agent to clean the surface to be coated to remove surface dust and residual oil; the cleaning agent is a mixed cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 8:3.

[0075] d. After cleaning, put the mobile phone into the drying oven to dry the residual moisture; the drying temperature is 40°C, and the drying time is 25 minutes.

[0076] Coating treatment:

[0077] 1) Put the mobile phone to be coated into the vacuum coating chamber, heat and evacuate; when the temperature of the evaporation chamber reaches 120°C, turn on the cold pump.

[0078] 2) Put the coating raw material into the evaporation chamber ...

Embodiment 3

[0086] A preparation method of a mobile phone nano waterproof membrane, comprising the following steps:

[0087] Mobile phone pre-processing:

[0088] a. Use masking paper to cover and seal the components inside the phone that do not require coating.

[0089] b. Remove the electrostatic tape inside the phone.

[0090] c. Use a cleaning agent to clean the surface to be coated to remove surface dust and residual oil; the cleaning agent is a mixed cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 8:3.

[0091] d. After cleaning, put the mobile phone into the drying oven to dry the residual moisture; the drying temperature is 35°C, and the drying time is 20 minutes.

[0092] Coating treatment:

[0093] 1) Put the mobile phone to be coated into the vacuum coating chamber, heat and evacuate; when the temperature of the evaporation chamber reaches 120°C, turn on the cold pump.

[0094] 2) Put the coating raw material into the evaporation chamber ...

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Abstract

The invention relates to the technical field of mobile phone waterproof film coating, in particular to a preparation method of a nanometer waterproof film for a mobile phone. The preparation method includes the steps of mobile phone pretreatment, film coating treatment and film coating post-treatment. The step of film coating treatment includes the substeps that (1) the mobile phone to be coated with the film is placed in a vacuum film coating chamber, and subjected to heating and vacuumizing; (2) film coating raw materials are placed in an evaporation chamber, vacuumizing is continued, and the raw materials are heated and sublimated; (3) the evaporation chamber communicates with a cracking chamber, and the film coating raw materials enter the cracking chamber so as to be cracked into active monomers; and (4) the active monomers enter the vacuum film coating chamber and finally are deposited on the surface, to be coated with the film, of the mobile phone, and a waterproof film layer is obtained. The obtained nanometer waterproof film for the mobile phone has the characteristics of good waterproof effect, low film coating cost and good air permeability.

Description

technical field [0001] The invention relates to the technical field of mobile phone waterproof coating, in particular to a method for preparing a mobile phone nano waterproof film. Background technique [0002] Mobile phones are indispensable communication devices among modern people. With the increasingly powerful functions of mobile phones, mobile phones have almost become an article that people cannot leave their bodies all the time. Because of this, people carry their mobile phones with them when they are eating, working, swimming, and even going to the bathroom, which increases the chance of their phones accidentally getting wet. [0003] At present, most mobile phones do not have the function of waterproofing. Once water enters, it will easily affect the circuit board and directly cause the mobile phone to be scrapped. Some mobile phones have a slightly stronger waterproof function, and have little effect on the mobile phone when it enters water, but the moisture accu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C16/44C23C16/02C23C16/04C23C16/448
CPCC23C16/0227C23C16/042C23C16/44C23C16/4485C23C16/4488
Inventor 肖桥兵
Owner GUANGDONG YINENG NANO SCI & TECH
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