A kind of preparation method of automobile nano waterproof film

A waterproof film and waterproof film layer technology, which is applied in metal material coating process, vacuum evaporation plating, coating, etc., can solve the problems of poor air permeability of plastic sealing rings, expensive EPTFE materials, and toxic fluorine elements. Achieve the effect of good waterproof effect, high utilization rate of raw materials, and low cost of coating

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 automotive parts need to dissipate heat, so the application is hindered
[0006] 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

[0041] A preparation method for an automobile nanometer waterproof film, comprising the following steps:

[0042]1) Clean the automotive components to be coated before coating, using a cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 1:1. Then dry, the drying temperature is 30°C, and the drying time is 20min.

[0043] 2) Put the automotive components to be coated into the vacuum coating chamber, and turn on the cold pump when the temperature of the evaporation chamber reaches 150°C. Heating and vacuuming, the sublimation temperature is 175°C, and the evaporation pressure is 25Pa;

[0044] 3) Put the coating raw material into the evaporation chamber, and the temperature of the cooling pump before putting the coating raw material is below -30°C. The coating raw material is parylene powder, which is formed by mixing N powder, C powder and D powder in a weight ratio of 2:3:2.

[0045] Continue vacuuming, and the coating material is heated and ...

Embodiment 2

[0050] A preparation method for an automobile nanometer waterproof film, comprising the following steps:

[0051] 1) Clean the automotive components to be coated before coating, using a cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 1:1. Then dry, the drying temperature is 35°C, and the drying time is 25min.

[0052] 2) Put the automotive components to be coated into the vacuum coating chamber, and turn on the cold pump when the temperature of the evaporation chamber reaches 150°C. Heating and vacuuming, the sublimation temperature is 185°C, and the evaporation pressure is 40Pa.

[0053] 3) Put the coating raw material into the evaporation chamber, and the temperature of the cooling pump before putting the coating raw material is below -30°C. The coating raw material is parylene powder, which is formed by mixing N powder, C powder and D powder in a weight ratio of 2:3:2. Continue vacuuming, and the coating material is heated and sublimat...

Embodiment 3

[0058] A preparation method for an automobile nanometer waterproof film, comprising the following steps:

[0059] 1) Clean the automotive components to be coated before coating, using a cleaning agent mixed with absolute ethanol and NY-120 gasoline at a volume ratio of 1:1. Then dry, the drying temperature is 32° C., and the drying time is 22 minutes.

[0060] 2) Put the automotive components to be coated into the vacuum coating chamber, and turn on the cold pump when the temperature of the evaporation chamber reaches 150°C. Heating and vacuuming, the sublimation temperature is 180°C, and the evaporation pressure is 30Pa;

[0061] 3) Put the coating raw material into the evaporation chamber, and the temperature of the cooling pump before putting the coating raw material is below -30°C. The coating raw material is parylene powder, which is formed by mixing N powder, C powder and D powder in a weight ratio of 2:3:2.

[0062] Continue vacuuming, and the coating material is hea...

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Abstract

The invention relates to the technical field of automobile waterproof film coating, in particular to a preparation method for an automobile nanometer waterproof film. The method includes the following steps that (1) an automobile element to be coated with a film is cleaned before coating and then dried; (2) the automobile element to be coated with the film is placed into a vacuum coating chamber, heated and vacuumized, wherein the sublimating temperature is 175-185 DEG C, and the evaporation pressure is 25-40 Pa; (3) coating raw materials are placed into an evaporation chamber, vacuumizing continues, and the coating raw materials are heated and sublimated; (4) the evaporation chamber is made to communicate with a cracking chamber, and the sublimated coating raw materials enter the cracking chamber to be cracked into active monomers with the cracking temperature being 670-680 DEG C and the cracking pressure being 8-10 Pa; and (5) the active monomers enter the vacuum coating chamber and are finally deposited on the to-be-coated surface of the automobile element to form the waterproof film. The obtained nanometer waterproof film has the characteristics of being good in waterproof performance, low in coating cost and good in permeability.

Description

technical field [0001] The invention relates to the technical field of automobile waterproof coating, in particular to a preparation method of automobile nanometer waterproof membrane. Background technique [0002] A car contains a lot of car parts, especially some core parts that must not be soaked in water. Once it encounters water, it will be easily damaged and even affect the safety performance of the car. However, cars are generally parked and walked outdoors, and rainy weather exists for a long time, which requires cars to have higher waterproof performance. [0003] There are three types of existing car waterproofing: [0004] One is the sealant. The main raw material it uses is rubber. It has certain mechanical properties and can play the effect of splashing water, but the rubber is compressed and deformed, and it is airtight, temperature-resistant, and corrosion-resistant. The current improvement method is to add fillers and reinforcing agents to reduce the rubber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/12C23C14/24
CPCC23C14/12C23C14/24
Inventor 肖桥兵
Owner GUANGDONG YINENG NANO SCI & TECH
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