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Environment-friendly high solid content polyaniline epoxy anticorrosive coating and preparation method thereof

A technology of polyaniline epoxy and high solid content, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of environmental pollution, waste of chemical raw materials, etc., reduce the cost of use, reduce the probability of accidents, and prepare The effect of simple method

Inactive Publication Date: 2018-09-04
BEIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to provide an environment-friendly high-solid polyaniline epoxy anticorrosion coating and its preparation method, so that the solid content of the coating quality can reach more than 85%, which greatly reduces the corrosion resistance of the coating while ensuring the anticorrosion performance of the coating. The use of organic solvents solves the problems of environmental pollution and waste of chemical raw materials caused by the volatilization of a large number of organic solvents in traditional solvent-based coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of the present embodiment comprises the following steps:

[0031] 1) Weigh 8g intrinsic polyaniline, 180g epoxy resin E-51, 4g organic bentonite, 40g titanium dioxide, 5g carbon black, 50g precipitated barium sulfate, 80g zinc oxide, 24g xylene, 8g n-butanol, 2g leveling agent BYK306, 2g defoamer BYK066N, 4g anti-sedimentation agent BYK410 for later use, mix and stir at a speed of 1000r / min for 60 minutes, then add grinding medium glass beads and sand at a speed of 2000r / min~3000r / min Grind for 240 minutes to 360 minutes, and filter out the glass beads to obtain the A-component coating body;

[0032] 2) Weigh 80g-100g of polyamide curing agent 650 and 10g-20g of epoxy diluent 501 and mix them, stir and mix evenly to obtain component B coating body;

[0033] 3) Before use, fully mix the A-component paint body and B-component paint body according to the ratio of mass ratio (4.0-4.5): 1, stir evenly to obtain the product of the present invention, an...

Embodiment 2

[0035] The preparation method of the present embodiment comprises the following steps:

[0036] 1) Weigh 12g intrinsic polyaniline, 160g epoxy resin E-51, 4g polyamide wax, 50g titanium dioxide, 5g carbon black, 60g precipitated barium sulfate, 60g mica powder, 24g xylene, 8g n-butanol , 2g leveling agent BYK333, 2g defoamer BYK024, 4g anti-settling agent BYK410 for spare, mix, mix and stir at 1000r / min for 60 minutes, then add grinding medium glass beads at 2000r / min~3000r / min Sanding for 240 minutes to 360 minutes, after filtering out the glass beads, the A-component coating body is obtained;

[0037] 2) Weigh 80g-100g polyamide curing agent 650 and 10g-20g epoxy diluent 501 epoxy diluent respectively and mix them, stir and mix evenly to obtain the B-component coating body;

[0038] 3) Before use, the A component paint body and the B component paint body are fully mixed according to the ratio of mass ratio (4.0-4.5): 1, and the product of the present invention is obtained a...

Embodiment 3

[0040] The preparation method of the present embodiment comprises the following steps:

[0041] 1) Weigh 8g intrinsic state polyaniline, 160g epoxy resin E-44, 4g polyamide wax, 50g titanium dioxide, 5g carbon black, 50g zinc oxide, 40g precipitated barium sulfate, 40g mica powder, 24g xylene, 8g n-butanol, 2g leveling agent BYK300, 2g defoamer BYK530, 4g anti-settling agent BYK411 for spare, mix, stir at 1000r / min for 60 minutes after mixing, then add grinding medium glass beads at 2000r / min~3000r Grinding at a rotational speed of 1 / min for 240 to 360 minutes, after filtering out the glass beads, the A-component coating body is obtained;

[0042]2) Weigh 80g~100g of cashew oil modified curing agent NX-2015 and 10g~20g of epoxy diluent 501 and mix them, stir and mix evenly to obtain the B component coating body;

[0043] 3) Before use, the A component paint body and the B component paint body are fully mixed according to the ratio of mass ratio (4.0-4.5): 1, and the product o...

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PUM

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Abstract

The invention discloses an environment-friendly high solid content polyaniline epoxy anticorrosive coating and a preparation method thereof, and belongs to the technical field of anticorrosive coatings. The coating is prepared from a component A coating body and a component B coating body, wherein the component A coating body is prepared from eigenstate polyaniline, epoxy resin, a thixotropic agent, pigment, functional filler, a mixed solvent and aids; the component B coating body is prepared from a curing agent and a diluent. The preparation method comprises the following steps: weighing allraw materials of the component A coating body and uniformly stirring, adding glass beads for sanding and filtering to obtain the component A coating body; uniformly mixing the raw materials of the component B coating body to obtain the component B coating body; respectively packaging the component A coating body and the component B coating body; sufficiently mixing according to the mass ratio anduniformly stirring before use, thus obtaining the environment-friendly high solid content polyaniline epoxy anticorrosive coating disclosed by the invention. The product can be used after being stoodand cured and the solid mass content reaches 85 percent or above; the use of organic solvents is reduced while the anti-corrosion properties of the coating are ensured, so that the problems of environmental pollution and waste of chemical raw materials caused by organic solvent volatilization are solved.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to an environment-friendly high-solid polyaniline epoxy anti-corrosion coating and a preparation method thereof. Background technique [0002] Compared with developed countries, the proportion of solvent-based coatings in my country is large (solvent-based coatings account for about 30% in the United States, 35% to 40% in Japan, and 20% in Germany), and the proportion of volatile organic compounds VOC produced is relatively high. There is a lack of VOC limit standards, and the existing standards are relatively loose compared with developed countries. In recent years, my country's atmospheric environment has been increasingly affected by smog, which has aroused great concern from relevant state departments. At present, ordinary solvent-based epoxy coatings generally contain about 40% to 50% volatile components. The volatilization of a large amount of organ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D179/02C09D5/08
Inventor 王岩
Owner BEIHUA UNIV
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