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Graphene/acrylic acid static-conducting paint and preparation method thereof

A graphene and electrostatic conductive technology, applied in conductive coatings, anti-corrosion coatings, coatings, etc., can solve the problems of poor compatibility between conductive pigments and fillers and resin matrix, shortened service life, etc.

Inactive Publication Date: 2016-10-12
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these two technical solutions, the compatibility between conductive pigments and fillers and the resin matrix is ​​not good, and a porous structure is easily formed inside the resin, and its service life is greatly shortened.

Method used

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  • Graphene/acrylic acid static-conducting paint and preparation method thereof
  • Graphene/acrylic acid static-conducting paint and preparation method thereof
  • Graphene/acrylic acid static-conducting paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1 - Coating 1

[0072] Disperse 0.01 g of benzyl alcohol, 0.01 g of pyrogallol, and 2.0 g of graphene slurry in 0.6 L of acetone, and sonicate for 1 hour. Add the obtained dispersion slurry to 50 g of acrylic resin, then add 20 mL of xylene, 0.1 g of BYK348, 0.1 g of BYK085, and 0.3 g of diatomaceous earth in sequence, and stir at 1500 r / min for 30 min to obtain Coating 1. Coating 1 is sprayed onto the PP board for its comprehensive physical properties and surface morphology see figure 2 .

[0073] result:

[0074] According to GB / T 16906, GB / T 1720 and GB / T 1771, the results are shown in Table 1 below. The surface resistivity, salt spray resistance and adhesion of coating 1 all meet the requirements.

Embodiment 2-

[0075] Example 2 - Coating 2

[0076] Disperse 0.01g of Triton X-100, 0.01g of pyrogallol, and 4.0g of graphene slurry in 1.0L of acetone, and ultrasonically disperse for 1 hour. Add the obtained dispersion slurry to 70g of acrylic resin, then sequentially add 28mL of xylene, 0.2g of BYK351, 0.1g of BYK085, 0.5g of diatomaceous earth, and stir at 1500r / min for 30min to obtain coating 2.

[0077] result:

[0078] The inspection was conducted according to GB / T 16906, GB / T 1720, and GB / T 1771. The results are shown in Table 1 below. The surface resistivity, salt spray resistance, and adhesion of coating 2 all meet the requirements.

Embodiment 3-

[0079] Example 3 - Coating 3

[0080] Disperse 0.01g of Triton X-100, 0.01g of pyrogallol, and 2.0g of graphene slurry in 0.6L of acetone, and ultrasonically disperse for 1 hour. Add the obtained dispersion slurry to 60g of acrylic resin, then add 15mL of xylene and 10mL of absolute ethanol, 0.1g of leveling agent (BYK348), 0.1g of defoamer (BYK085), 0.3g of diatomaceous earth, 1500r / min and stirred for 30 min to obtain coating 3.

[0081] result:

[0082] The inspection was conducted according to GB / T 16906, GB / T 1720, and GB / T 1771. The results are shown in Table 1 below. The surface resistivity, salt spray resistance, and adhesion of coating 3 all meet the requirements.

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PUM

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Abstract

The present invention provides a kind of graphene / acrylic acid conductive electrostatic coating and preparation method thereof, described coating comprises: graphene, dispersant, acrylic resin, auxiliary agent, wherein, the mass ratio of described graphene and dispersant is 20:1 -1:1, and the mass ratio of the graphene to the acrylic resin is 1:20-1:1000, based on the total weight of the coating. The coating of the invention has excellent static electricity conductivity and salt spray resistance, simple process and low cost. The prepared graphene / acrylic conductive coating can be applied to automotive protective primers and topcoats.

Description

technical field [0001] The invention belongs to the field of materials, in particular, the invention relates to a graphene / acrylic acid conductive material and its application. Background technique [0002] Static conductive coating is a new type of functional coating with the ability to conduct current and eliminate the accumulated static charge. The surface resistance after coating is generally 10 8 -10 11 Ωcm has been widely used in the fields of oil tank storage, oil pipeline, automobile decoration and oil tank car protection. The preparation process of electrostatic conductive coating is to add pigments and fillers with electrostatic conductive function to the resin matrix, so that the composite coating has the function of transporting charges. In the past, people mostly used graphite, conductive carbon black, composite conductive mica, conductive titanium dioxide and conductive quartz powder as conductive pigments and fillers. Although graphite and conductive carbon...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D5/24C09D5/08
CPCC09D133/00C08K3/04C09D5/08C09D5/24
Inventor 王立平刘栓郭小平蒲吉斌
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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