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A kind of conductive paint for plastic surface coating and application

A conductive coating and surface coating technology, applied in conductive coatings, coatings, etc., can solve problems such as electromagnetic wave interference and information leakage, and achieve the effects of improving adhesion, simple preparation process, and industrialized production.

Inactive Publication Date: 2015-09-23
临泽县鼎丰源凹土高新技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the electronics industry and the polymer industry, polymer materials are widely used in the electronics industry due to their light weight, low price, and easy processing and molding. More and more electronic products and communication equipment shells are mostly made of lightweight Plastic is used as the shell, but these plastic shells are almost transparent to electromagnetic waves and have no shielding effect, which makes the problems of electromagnetic wave interference and information leakage increasingly prominent. In order to ensure the normal operation of electronic and electrical equipment, protect the environment, and protect human health, it is necessary to protect these Equipment and devices are shielded to reduce electromagnetic radiation intensity and reduce electromagnetic radiation pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of modified attapulgite / nano carbon powder composite conductive powder:

[0025] a. Weigh 100g of attapulgite clay with a fineness of 200-400 mesh and put it into 800ml distilled water, treat it with 50ml hydrochloric acid with a concentration of 1mol / L at 80°C for 2 hours, and stir for 2 hours at the same time to prepare a suspension; Add 10mL of organopolysiloxane and OP-10 composite active agent to the suspension, and the volume ratio of the two is 1:1; add NaOH solution dropwise to adjust the pH value of the suspension to 6, and then stirrer with a cross blade at 1500 RPM and stirring for 2 hours, after standing still for 10 hours, the modified attapulgite clay suspension is separated;

[0026] b. Add 10 g of nano-carbon powder to the above-mentioned isolated modified attapulgite clay suspension, after stirring for 10 min, the suspension is centrifuged in a centrifuge for 3 times, each time for 5 minutes, and the solid is recovered by filtration;

...

Embodiment 2

[0032] (1) The modified attapulgite / nano-carbon powder composite conductive powder was prepared according to the method of Example 1.

[0033] (2) Use the ABS plastic board as the base material, lightly polish it with sandpaper, and scrub the surface of the base material with ethanol, after cleaning, dry it in an oven for use.

[0034] (3) Put 60ml of γ-(methacryloyloxy)propyltrimethoxysilane in a beaker, add 500ml of ethanol solution and 50ml of aqueous solution, and then add 20ml of formic acid as a catalyst. The catalytic time is 4h, using 10% Adjust the pH value to 10 with NaOH, and stir for 4 hours with an electric mixer to make the phases uniformly miscible, then put 160g of modified attapulgite / nano carbon powder composite conductive powder and 30g of sodium bentonite prepared in step (1) into In the solution, stir again with an electric mixer for 4 hours, seal the solution well, perform ultrasonic oscillation in an ultrasonic cleaning agent for 3 hours, and finally pla...

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PUM

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Abstract

The invention discloses an alcohol-based conductive coating for coating the surface of plastic and an application of the alcohol-based conductive coating. A preparation method of the conductive coating disclosed by the invention comprises the steps: placing a silane coupling agent into a beaker, adding an alcohol-based solution and water, then, adding formic acid as a catalyst to catalyze for 2-4h, adding a dilute alkaline solution to regulate the pH value to 9-10, stirring for 2-4h by using an electric stirrer to enable all phases to be uniformly mixed, then, placing modified attapulgite / nanocarbon powder composite conductive powder and lithium-based bentonite into the solution, secondarily stirring for 2-4h by using the electric stirrer, and carrying out ultrasonic and water bath reaction until the solution is formed into a gel; and placing tetrahydrofuran into the beaker to dissolve the gel, then, adding benzoyl peroxide, stirring by using a magnetic stirrer, adding an organosilicon defoaming agent, and defoaming in vacuum to obtain the alcohol-based conductive coating. The alcohol-based conductive coating disclosed by the invention is simple in preparation process, good in stability and industrial production is easy to realize.

Description

technical field [0001] The invention relates to an organic conductive paint wrapped on a plastic surface, in particular to an alcohol-based conductive paint and its application. Background technique [0002] With the rapid development of the electronics industry and the polymer industry, polymer materials are widely used in the electronics industry due to their light weight, low price, and easy processing and molding. More and more electronic products and communication equipment shells are mostly made of lightweight Plastic is used as the shell, but these plastic shells are almost transparent to electromagnetic waves and have no shielding effect, which makes the problems of electromagnetic wave interference and information leakage increasingly prominent. In order to ensure the normal operation of electronic and electrical equipment, protect the environment, and protect human health, it is necessary to protect these Equipment and devices are shielded to reduce electromagneti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/24C09D183/07C09D183/06C09D7/12C08J7/04
Inventor 姚义俊刘斌缪菊红李军王涛库勇昌温晓霞张雯雯
Owner 临泽县鼎丰源凹土高新技术开发有限公司
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