Single-component silk printing insulation ink for cupronickel

An insulating ink, one-component technology, applied in the field of ink, can solve the problems of sticking deviation, poor fit of special-shaped surfaces, low construction efficiency, etc., and achieve the effect of convenient construction, excellent impact resistance, and good tinting strength

Inactive Publication Date: 2017-09-22
HUIZHOU PERFECT CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the shielding cover is glued with PTFE film on the inner surface of the shielding cover in a laminating way, the construction efficiency

Method used

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  • Single-component silk printing insulation ink for cupronickel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] S1. Add 60Kg of epoxy-modified saturated polyester resin to the mixing tank, add 3Kg of anti-sedimentation agent at a stirring speed of 800 rpm, then increase the rotating speed to 1600 rpm, stir for 50 minutes until the dispersion is uniform, and cool down After reaching normal temperature, it is ground on a three-roller machine to a fineness of ≤10um to obtain a semi-finished product;

[0030] S2. Add 10Kg of insulating golden yellow essence, 5Kg of methyl etherified amino resin, 3Kg of phosphate ester adhesive, 2Kg of silicone leveling agent, and 2Kg of silicone defoamer to the semi-finished product, mix well, and stir at a speed of 800 rpm minutes, stirring for 15 minutes;

[0031] S3. Then add 15Kg of solvent, control the stirring speed to 800 rpm, stir for 15 minutes, adjust the viscosity to 6000~8000mpa.s / 25°C, mix well and then filter and pack with a 200-mesh filter.

Embodiment 2

[0033] S1. Add 70Kg of epoxy-modified saturated polyester resin to the mixing tank, add 1Kg of anti-sedimentation agent at a stirring speed of 900 rpm, then increase the rotational speed to 1700 rpm, stir for 40 minutes until uniform dispersion, and cool down After reaching normal temperature, it is ground on a three-roller machine to a fineness of ≤10um to obtain a semi-finished product;

[0034] S2. Add 5Kg of insulating black essence, 15Kg of methyl etherified amino resin, 1.5Kg of phosphate ester adhesive, 1.5Kg of silicone leveling agent, and 1Kg of silicone defoamer to the semi-finished product, mix well, and stir at a speed of 900 rpm / min, stirring for 10 minutes;

[0035] S3. Then add 5Kg of solvent, control the stirring speed to 900 rpm, stir for 10 minutes, adjust the viscosity to 6000~8000mpa.s / 25°C, mix well and then filter and pack with a 200-mesh filter.

Embodiment 3

[0037] S1. Add 67Kg of epoxy-modified saturated polyester resin to the mixing tank, add 2Kg of anti-sedimentation agent at a stirring speed of 1000 rpm, then increase the rotating speed to 1800 rpm, stir for 20 minutes until uniformly dispersed, and cool down After reaching normal temperature, it is ground on a three-roller machine to a fineness of ≤10um to obtain a semi-finished product;

[0038] S2. Add 8Kg of insulating green essence, 10Kg of methyl etherified amino resin, 1Kg of phosphate ester adhesive, 1Kg of silicone leveling agent, and 1.5Kg of silicone defoamer to the semi-finished product, mix well, and stir at a speed of 1000 rpm minutes, stirring for 5 minutes;

[0039] S3. Then add 9.5Kg of solvent, control the stirring speed to 1000 rpm, stir for 5 minutes, adjust the viscosity to 6000~8000mpa.s / 25°C, mix well and then filter and pack with a 200-mesh filter.

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Abstract

The invention provides silk printing insulation ink for substituting a PTFE insulation membrane by utilizing an electronic product cupronickel shielding cover. The single-component silk printing insulation ink is prepared from the following components by weight percent: 60 to 70 percent of epoxy modified polyester resin, 5 to 15 percent of amino resin, 5 to 10 percent of color concentrate, 1 to 3 percent of anti-settling agent, 5 to 15 percent of DBE environment-friendly solvent, 1 to 3 percent of adhesive agent, 1 to 2 percent of flatting agent, and 1 to 2 percent of defoaming agent. The silk printing insulation ink for substituting the PTFE insulation membrane by utilizing the electronic product cupronickel shielding cover is simple and convenient in use and high in insulation value which is equivalent to PTFE; and meanwhile, a coating film is resistant to scratch, good in flexibility, resistant to impact, capable of reaching 0T curvature, suitable for stamping processing after the silk printing, and suitable for a mobile phone, suitable for the mobile phone, and the insulation function of the electronic product cupronickel shielding cover is capable of substituting the original process of the laminated PTFE membrane, so that the purpose of achieving the high efficiency of mass production is realized.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a single-component screen-printing insulating ink for white copper that can replace PTFE film insulation and its preparation method and application. Background technique [0002] Mobile phones, GPS and other electronic product components will generate electromagnetic waves when they are working, and there are problems that need to prevent electromagnetic interference (EMI) and shield the components on the PCB board and LCM. Because the shielding cover of the components is made of white copper , In order to prevent short circuit caused by white copper contacting the original, the inner surface of the shielding cover needs to be insulated. Now, a layer of PTFE film is usually pasted on the inner surface of the shielding cover for insulation, so as to shield the components from the PCB board and other components to prevent mutual interference. Interference, causing problems in signal t...

Claims

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Application Information

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IPC IPC(8): C09D11/104C09D11/103C09D11/03
CPCC09D11/03C09D11/103C09D11/104
Inventor 柏跃松
Owner HUIZHOU PERFECT CHEM IND CO LTD
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