High-dispersity water-based carbon nanotube conductive slurry

A carbon nanotube and conductive paste technology, applied in conductive coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of lack of active groups, few surface defects, and carbon nanotubes are easily entangled and agglomerated into bundles. Achieve the effect of increasing the bulk density, improving the electrical conductivity, and prolonging the storage and service life.

Inactive Publication Date: 2016-10-26
嘉兴高正新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since carbon nanotubes are highly polarized, smooth-surfaced inorganic polymer compounds with few surface defects and lack of active groups, there are strong van der Waals forces betw

Method used

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Examples

Experimental program
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Example

[0030] Examples 1-16

[0031] Take the raw materials according to Table 1 below, dissolve the aqueous dispersant in the aqueous solvent to obtain the dispersant solution, and then spray the dispersant solution into the high-speed stirring carbon nanotubes (diameter 1-30nm, length 1~ 100μm, bulk density 0.02g / mL), the process parameters are shown in Table 1, after high-speed stirring and mixing, activated carbon nanotubes are prepared;

[0032] Table 1

[0033]

[0034]

[0035] The performance test results of the prepared activated carbon nanotubes are as follows:

[0036] Table 2

[0037]

[0038]

[0039] The dispersibility test was tested as follows: add 10 mg of the activated carbon nanotubes prepared in Examples 1 to 16 into 10 mL of water, and ultrasonically disperse for 30 minutes to obtain a suspension. Leave it to stand. When there is obvious separation, the recording time is the storage time , The results obtained are shown in Table 2. The longer the storage time, the bette...

Example

[0041] Examples 17 to 32

[0042] The activated carbon nanotubes prepared in Examples 1 to 16 are mixed with water-soluble resin, water-based solvent, anti-settling agent, and defoaming agent, and mixed uniformly through ultrasonic or sanding process to prepare the highly dispersed water-based carbon nanotube conductive Slurry; the amount of each raw material is shown in Table 3. Examples 17-24 adopt an ultrasonic process, and Examples 25-32 adopt a sanding process.

[0043] Table 4 shows the solid content (carbon nanotube content) and performance data of the prepared highly dispersed aqueous carbon nanotube conductive slurry. The storage stability (one year) is tested in accordance with the standard "GB6753.3".

[0044] The highly dispersed water-based carbon nanotube conductive slurry prepared in Examples 17-32 was sprayed on the PET substrate, and the surface of the coating was tested according to "GB / T1410-2006 Test Method for Volume Resistivity and Surface Resistivity of Solid...

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Abstract

The invention discloses high-dispersity water-based carbon nanotube conductive slurry. The high-dispersity water-based carbon nanotube conductive slurry comprises, by mass, 10-60 parts of water-soluble resin, 5-40 parts of activated carbon nanotube, 20-70 parts of water-based solvent B, wherein the activated carbon nanotube is obtained by stirring carbon nanotube powder at high speed, dissolving dispersing agent in liquid and spraying the solution into the carbon nanotube powder during the stirring to activate the surface of a carbon nanotube. The high-dispersity water-based carbon nanotube conductive slurry is good in conductivity, good in anti-static property, good in dispersity and capable of being stored for a long time.

Description

1. Technical field [0001] The invention relates to a highly dispersed water-based carbon nanotube conductive paste. 2. Background technology [0002] Conductive coatings are special coatings that are coated on high-resistivity polymer materials to enable them to conduct current and eliminate accumulated static charges. They can be coated on the surface or inside of substrates of any shape. Conductive coatings can be divided into two categories according to composition and conductive mechanism: structural type (also known as intrinsic type) conductive coatings and composite type (also known as additive type) conductive coatings. The conductive material of the intrinsic conductive coating is the polymer itself. The conductive material of the additive conductive coating is a conductive substance (metal, graphite, etc.) added to the insulating polymer, and the conductive effect of the conductive substance is used to make the polymer conductive. [0003] At present, composite c...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D175/04C09D175/14C09D183/04C09D167/08C09D163/00C09D5/24C09D7/12
CPCC09D133/00C08K3/346C08K3/36C08K7/24C08K9/04C08K9/08C08K13/06C08K2201/011C08L2201/04C08L2205/03C08L2205/035C09D7/61C09D7/70C09D167/08C09D175/04C09D175/14C09D183/04C08L67/08C08L83/04
Inventor 王鹏甄万清
Owner 嘉兴高正新材料科技股份有限公司
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