Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Continuous one-way moisture permeable coating film of automobile electric electronic equipment and manufacturing method of continuous one-way moisture permeable coating film

A technology of electronic equipment and manufacturing method, which is applied in the field of coating film, can solve the problems such as the large number of vent plugs and the inability to solve condensation, and achieve the effect of blocking the infiltration of dust

Active Publication Date: 2014-06-18
PAN ASIAN MICROVENT TECH JIANGSU CORP
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the blurred phenomenon of water vapor scattering on the light, this theory uses a large number of vent plugs, which cannot solve the problem of condensation in the lower air temperature area of ​​the shell

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous one-way moisture permeable coating film of automobile electric electronic equipment and manufacturing method of continuous one-way moisture permeable coating film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] (2) Preparation of coating agent containing hydrophilic groups: Polyurethane, dimethylformamide solvent, hydrophilic group solvent and SiO 2 The mixture of fine powder is stirred and emulsified evenly to form a coating agent with hydrophilic groups;

[0030] (3) Manufacture of coating film: preparation before coating, coating agent containing hydrophilic groups is added to roller coating machine, coating thickness is adjusted, expanded polytetrafluoroethylene microporous film 1 is unwound, and glue is applied in contact with the roller , the next process is roller heating and drying of the coating film, winding, storage, aging and curing, and packaging.

[0031] Preferably, the manufacture of the expanded polytetrafluoroethylene microporous film 1: mix the polytetrafluoroethylene dispersion resin and the liquid extrusion aid in proportion, heat-preserve and mature at 30°C~35°C, and pre-press into a cylindrical blank , the cylindrical blank is made into a thin sheet by ...

Embodiment

[0042] A continuous unidirectional moisture-permeable coating film for automotive electrical and electronic equipment, comprising: expanded polytetrafluoroethylene microporous film 1 and a coating 2 containing hydrophilic groups, the expanded polytetrafluoroethylene microporous film The surface of the porous film 1 is coated with a coating 2 containing hydrophilic groups, and its manufacturing method specifically includes the following steps:

[0043] (1) Manufacture of expanded polytetrafluoroethylene microporous film: mix polytetrafluoroethylene dispersion resin and aviation kerosene solvent at a mass ratio of 5:1, heat-preserve and mature at 30°C~35°C, and pre-press into a cylindrical blank , the cylindrical blank is made into a thin sheet by calendering, the extrusion aid is removed by heating at 90~110°C, uniaxially stretched at 190~210°C, biaxially stretched at 190~210°C, and sintered at 330~350°C for 15 ~20min heat setting, cooling, winding;

[0044] (2) Preparation of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
viscosity indexaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a continuous one-way moisture permeable coating film of automobile electric electronic equipment and a manufacturing method of the continuous one-way moisture permeable coating film. The coating film comprises an expanded Teflon micropore film and a coating containing a hydrophilic group. The manufacturing method disclosed by the invention comprises the following steps of manufacturing the expanded Teflon micropore film, preparing a coating agent containing the hydrophilic group, manufacturing a coating layer, adding the coating agent containing the hydrophilic group into a roller coating machine before coating, regulating the thickness of the coating, unreeling the expanded Teflon micropore film, contacting a glue onto a roller, heating a drying coating film through a next process, rolling and storing the drying coating film, storing to ripe and solidify and packaging. The continuous one-way moisture permeable coating film and the manufacturing method disclosed by the invention have the advantages that the generation of a non-fog-forming condensation phenomenon in the shell of the automobile electric electronic equipment is guaranteed, an electrical property is not subjected to the influence of the moist air environment, the dust is prevented from permeating, and the pollution-free dust security classification of the shell of the automobile electric electronic equipment is achieved.

Description

technical field [0001] The invention relates to the field of coating films, in particular to a continuous one-way moisture-permeable coating film for automotive electrical and electronic equipment and a manufacturing method thereof. Background technique [0002] The theory of defogging and decondensing the air hole of the bent tube of the European Union car lamp: there is a sponge inside to prevent dust, and the air inside the lamp can move in and out with the change of the temperature inside the lamp, so as to quickly realize the defogging and decondensing in the lamp Exposure, bent tube ventilated car lights soon after the use of dust and electrical components rust inside the housing. [0003] The dew condensation theory of Gore Company in the United States: the lamp is through the air convection inside the lamp and the outside of the lamp to establish a kind of air pressure balance. The water vapor in the lamp will be discharged outside the lamp as the temperature inside ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/24B32B27/06B32B27/30B32B33/00B32B37/15B32B37/06B32B38/16C08J7/048
CPCC09D175/04C08J2327/18C08J2475/00C08J7/0427C08J7/048
Inventor 张云丁荣华昌建忠
Owner PAN ASIAN MICROVENT TECH JIANGSU CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com