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Coated film patch for automotive electrical and electronic equipment and manufacturing method thereof

A technology for electronic equipment and coating film, applied in the field of coating film patch for automotive electrical and electronic equipment and its manufacturing field, can solve the problems of inability to solve condensation, a large number of ventilation plugs, etc., to prevent the infiltration of dust, manufacture Easy-to-use effects

Active Publication Date: 2016-01-27
PAN ASIAN MICROVENT TECH JIANGSU CORP
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  • 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

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  • Coated film patch for automotive electrical and electronic equipment and manufacturing method thereof
  • Coated film patch for automotive electrical and electronic equipment and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] (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;

[0034] (3) Manufacture of coating film: preparation before coating, coating agent containing hydrophilic groups is added to the 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 drum heating and drying of the coating film, winding, storage, aging and curing, and packaging;

[0035] (4) Manufacture of coated film patches: preparation of PE carrier film 3 and coating film, composite connection of PE carrier film 3 and the coating layer containing hydrophilic groups of the coating film, half-cut die-cutting to On the surface of the carrier tape, separate the finished coated film patch from...

Embodiment 1

[0044] Embodiment 1: as figure 1 as shown,

[0045] A coating film patch for automotive electrical and electronic equipment, comprising: a PE carrier film 3 and a coating film, the coating film comprising expanded polytetrafluoroethylene microporous film 1 and coated on expanded polytetrafluoroethylene The coating 2 containing hydrophilic groups on the surface of vinyl fluoride microporous film 1, the PE carrier film 3 is connected with the coating film 2 containing hydrophilic groups with low viscosity, and its manufacturing method is specific Include the following steps:

[0046] (1) Manufacture of expanded polytetrafluoroethylene microporous film 1: 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 column 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, bia...

Embodiment 2

[0050] Embodiment 2: as figure 2 as shown,

[0051] A coating film patch for automotive electrical and electronic equipment, comprising: a PE carrier film 3 and a coating film, the coating film comprising expanded polytetrafluoroethylene microporous film 1 and coated on expanded polytetrafluoroethylene The coating 2 containing the hydrophilic group on the surface of the vinyl fluoride microporous film 1, the PE carrier film 3 and the coating 2 containing the hydrophilic group of the coating film are connected by pressure-sensitive adhesive, Its manufacturing method specifically comprises the following steps:

[0052] (1) Manufacture of expanded polytetrafluoroethylene microporous film 1: 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 column Blank, the cylindrical blank is made into a thin sheet by calendering, the extrusion aid is removed by heating at 90~110°C, u...

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Abstract

A coating film patch for automotive electric and electronic devices and a manufacturing method for the coating film patch. The coating film patch comprises: a carrier-tape membrane (3) and a coating film. The coating film comprises an expanded polytetrafluoroethylene microporous membrane (1) and a hydrophilic group-containing coating (2) coated onto the surface of the expanded polytetrafluoroethylene microporous membrane. The manufacturing method for the coating film patch: manufacturing of an expanded polytetrafluoroethylene microporous membrane; preparation of a hydrophilic group-containing coating agent; manufacturing of a coating film; and manufacturing of a coating film patch: composite connection of the carrier-tape membrane (3) with a hydrophilic group-containing coating surface of the coating film, kiss cutting and die cutting to a carrier-tape surface, inspection, rolling, and packaging. The coating film patch is capable of fundamentally solving a phenomenon of fogging-condensation and dust accumulation in a housing for automotive electric and electronic devices, is applicable in welding connection of the housing for automotive electric and electronic devices for engineering applications, or can be bonded and assembled directly with a breathable window of the housing for automotive electric and electronic devices, and is a standardized end product allowing for industrialized manufacturing and facilitated use.

Description

technical field [0001] The invention relates to the field of coating film patches, in particular to a coating film patch 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 curved tube of the European car lamp, there is a sponge inside to prevent dust, and the air in the lamp can be moved out and in 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 shell. [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 the lamp rises. The larger air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B33/00B32B27/30B32B7/12B32B37/15B32B37/12
CPCB32B7/12B32B27/08B32B27/14B32B27/322B32B37/1284B32B2037/243B32B2038/042B32B2038/168B32B2264/0257B32B2307/516B32B2307/518B32B2307/728B32B2457/00B32B2605/003
Inventor 张云丁荣华昌建忠
Owner PAN ASIAN MICROVENT TECH JIANGSU CORP
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