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A kind of preparation method of nano waterproof membrane of military equipment

A technology of waterproof membrane and waterproof membrane layer, applied in nanotechnology, metal material coating technology, vacuum evaporation plating and other directions, can solve the problems of poor ventilation effect of plastic sealing ring, expensive EPTFE material, high heating performance requirements, etc. To achieve the effect of favorable adhesion and growth, good waterproof effect and good vacuum air tightness

Inactive Publication Date: 2019-01-18
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. Many military equipment will generate a lot of heat during work, and the heat generation performance is very high, 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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  • A kind of preparation method of nano waterproof membrane of military equipment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A method for preparing a nano waterproof membrane for military equipment, comprising the following steps:

[0059] 1) The surface of the military equipment to be coated is ultrasonically cleaned and dried with a cleaning agent; the drying temperature after cleaning is 35°C, and the drying time is 20 minutes.

[0060] The cleaning agent is mixed by the following raw materials in parts by weight:

[0061] 1,1,2-Trichlorotrifluoroethane 50 parts

[0062] Nitromethane 15 parts

[0063] 30 parts of n-butanol

[0064] 3 parts triethanolamine

[0065] Sodium 1,4-butanedioic acid sulfonate 1 part

[0066] 3 parts oxalic acid

[0067] Sodium silicate 1 part

[0068] 60 parts deionized water

[0069] 2) Put the military equipment to be coated into the vacuum coating chamber, heat and vacuum;

[0070] 3) Put the first coating raw material into the evaporation chamber, the temperature of the cold pump before putting the coating raw material is below -30°C, continue to vacuu...

Embodiment 2

[0074] A method for preparing a nano waterproof membrane for military equipment, comprising the following steps:

[0075] 1) The surface of military equipment to be coated is ultrasonically cleaned and dried with a cleaning agent; the drying temperature after cleaning is 40°C, and the drying time is 25 minutes.

[0076] The cleaning agent is mixed by the following raw materials in parts by weight:

[0077] 1,1,2-Trichlorotrifluoroethane 60 parts

[0078] Nitromethane 10 parts

[0079] 35 parts of n-butanol

[0080] 2 parts triethanolamine

[0081] Sodium 1,4-butanedioic acid sulfonate 2 parts

[0082] oxalic acid 2 parts

[0083] Sodium silicate 2 parts

[0084] 50 parts of deionized water

[0085] 2) Put the military equipment to be coated into the vacuum coating chamber, heat and vacuum;

[0086] 3) Put the first coating raw material into the evaporation chamber, the temperature of the cold pump before putting the coating raw material is below -30°C, continue to vacu...

Embodiment 3

[0090] A method for preparing a nano waterproof membrane for military equipment, comprising the following steps:

[0091] 1) The surface of the military equipment to be coated is ultrasonically cleaned and dried with a cleaning agent; the drying temperature after cleaning is 37°C, and the drying time is 22 minutes.

[0092] The cleaning agent is mixed by the following raw materials in parts by weight:

[0093] 1,1,2-Trichlorotrifluoroethane 55 parts

[0094] Nitromethane 12 parts

[0095] 32 parts of n-butanol

[0096] 2.5 parts of triethanolamine

[0097] Sodium 1,4-butanedioic acid sulfonate 1.5 parts

[0098] 2.5 parts of oxalic acid

[0099] Sodium silicate 1.5 parts

[0100] 55 parts of deionized water

[0101] 2) Put the military equipment to be coated into the vacuum coating chamber, heat and vacuum;

[0102] 3) Put the first coating raw material into the evaporation chamber, the temperature of the cold pump before putting the coating raw material is below -30°C...

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Abstract

The invention relates to the technical field of military project equipment waterproofness, in particular to a preparation method for a nanometer waterproof film for military project equipment. The method includes the following steps that (1) a to-be-coated surface of the military project equipment is subjected to ultrasonic cleaning through a cleaning agent and then dried; (2) the military project equipment to be coated with a film is placed into a vacuum coating chamber, heated and vacuumized; (3) a first coating raw material is placed into an evaporation chamber, vacuumizing continues, and the first coating raw material is heated and sublimated; (4) the evaporation chamber is made to communicate with a cracking chamber, and the sublimated coating raw material is finally deposited on the surface of the military project equipment to form the waterproof film; and (5) a second coating raw material is added into the evaporation chamber, heating continues for evaporation and cracking, and a protection film is plated on the waterproof film. The obtained waterproof film has the characteristics of being good in waterproof effect, low in coating cost, good in permeability, high in thermal stability and excellent in corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of waterproofing of military equipment, in particular to a preparation method of a nanometer waterproof membrane of military equipment. Background technique [0002] Military equipment refers to the orders issued by the state under the Ministry of Electronics Industry, Aviation Industry Corporation, Aerospace Industry Corporation, Ordnance Industry Corporation, Nuclear Industry Corporation, Shipbuilding Industry Corporation, China Academy of Engineering Physics and the provincial defense industry offices And special production of military equipment. The product quality requirements of military equipment are extremely high, so its waterproof performance is also one of the essential and important performances. [0003] There are three types of waterproofing for existing military equipment: [0004] One is the sealant. The main raw material it uses is rubber. It has certain mechanical properties and can play ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/12B82Y40/00
CPCB82Y40/00C23C14/12
Inventor 肖桥兵
Owner GUANGDONG YINENG NANO SCI & TECH
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