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Conductive PUA composite emulsion and preparation method thereof

A composite emulsion and formulation technology, applied in the field of conductive PUA composite emulsion and its preparation, to achieve high production efficiency, improve compatibility, and prevent precipitation

Active Publication Date: 2022-07-22
GUANGDONG BANGGU CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still relatively few technical studies on the conductivity of PUA emulsions.

Method used

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  • Conductive PUA composite emulsion and preparation method thereof
  • Conductive PUA composite emulsion and preparation method thereof
  • Conductive PUA composite emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of conductive PUA composite emulsion, comprising the steps:

[0050](1) add 100 parts of polyethylene adipate diols (molecular weight is 800), 5 parts of 1,4-butanediol and 8 parts of trimethylolpropane in the reaction kettle of nitrogen protection, in Vacuum dehydration at 110°C for 1h, cool down to 70°C, add 50 parts of acetone solvent and stir, turn on the condensing reflux device, rotate at 120 rpm, and take 15 minutes to dissolve the raw materials, then add 15 parts of modified carbon nanomaterials and 0.005 parts of dilaurin Dibutyltin acid catalyst, stirring for 20min to a uniform dispersion state;

[0051] (2) after 40 parts of hexamethylene diisocyanate and 50 parts of acetone solvents are diluted, slowly dropwise into the reaction kettle, the dropwise addition is completed in 20min, be warming up to 85 ℃, stir 50min reaction;

[0052] (3) be cooled to 78 ℃, successively add 1 part of potassium persulfate that the mass concentration is 20%...

Embodiment 2

[0061] A preparation method of conductive PUA composite emulsion, comprising the steps:

[0062] (1) Add 100 parts of polycarbonate diol (molecular weight is 1000), 7 parts of 1,6-hexanediol and 10 parts of dimethylol butyric acid into a nitrogen-protected reaction kettle, and vacuum at 110° C. Dehydrate for 1 hour, cool to 70°C, add 60 parts of acetone solvent and stir, turn on the condensing reflux device, rotate at 120 rpm, and take 15 minutes to dissolve the raw materials, then add 20 parts of modified nano-carbon material and 0.005 parts of dibutyltin dilaurate catalyst , and stir for 25min to a uniform dispersion state;

[0063] (2) after diluting 45 parts of isophorone diisocyanate and 60 parts of acetone solvent, slowly add dropwise in the reaction kettle, finish dropping in 20min, be warming up to 86 ℃, stir 60min reaction;

[0064] (3) be cooled to 79 ℃, add 1 part of potassium persulfate with a mass concentration of 20%, 8 parts of sodium lauryl sulfate successivel...

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Abstract

The invention discloses a conductive PUA composite emulsion and a preparation method thereof, raw materials of the conductive PUA composite emulsion comprise a modified nano carbon material, and preparation raw materials of the modified nano carbon material comprise, by weight, 10 parts of graphene oxide, 20-30 parts of multi-walled carbon nanotubes, 1.5-2 parts of a silane coupling agent, 3-4 parts of first polyester polyol, and 5-10 parts of an alcohol diluent. The conductive PUA composite emulsion is good in stability and high in conductivity, and can be well applied to the fields of conductive coatings, electric heating coatings, electromagnetic shielding coatings and the like.

Description

technical field [0001] The present invention relates to the technical field of water-based polyamic acid acrylate composite emulsion, and more particularly to a conductive PUA composite emulsion and a preparation method thereof. Background technique [0002] Nanocarbon materials include nanocarbon black, nanographite, carbon nanotubes, graphene and other materials, which have excellent electrical conductivity and thermal conductivity, and are commonly used additives for the preparation of conductive polymer composite materials. It is widely used in many fields such as materials and conductive adhesives. However, nanomaterials are very easy to agglomerate, have poor compatibility with polymers, and have poor dispersibility in polymer resins, which directly affects the electrical conductivity of nanocarbon materials. [0003] Water-based polyamide acrylate (PUA) emulsion is a new type of emulsion that combines water-based polyurethane and water-based acrylate synthesis method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F220/14C08F220/18C08F2/26C08K3/04C08K9/04C08K9/06
CPCC08F283/006C08F2/26C08K3/042C08K3/041C08K9/08C08K9/06C08F220/14C08F220/1804
Inventor 薛萌魏星星蔡爱文吕兴军何文豪胡剑青
Owner GUANGDONG BANGGU CHEM TECH
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