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Nano-ceramic polymer heavy-anticorrosion coating and preparation method thereof

A nano-ceramic and polymer technology, applied in anti-corrosion coatings, fire-resistant coatings, polyurea/polyurethane coatings, etc., can solve the problems of low-zinc type epoxy zinc-rich paint anti-corrosion effect, not ideal, etc., to achieve good metal anti-corrosion Function, good heat insulation effect, convenient construction

Active Publication Date: 2017-09-15
山东伟龙新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-corrosion effect of low-zinc type epoxy zinc-rich paint is not ideal

Method used

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  • Nano-ceramic polymer heavy-anticorrosion coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] A nano-ceramic polymer heavy-duty anti-corrosion coating, its components are composed of the following parts by weight: 30g polyurethane prepolymer, 15g modified acrylate, 10g polyaniline, 30g composite powder, 15g epoxy resin, 20g nano ceramics, 6g zirconia, 3g yttrium oxide, 7g glass wool, 1g porcelain powder, 6g kaolin, 5g mica powder, 8g zinc powder, 2g titanium dioxide and 0.5g silicon defoamer.

[0025] Wherein, described polyurethane prepolymer preparation method is:

[0026] (1) Add 80g of polyether diol into the reaction kettle, set the temperature of the oil bath heating device to 110°C, turn on the vacuum pump, turn on the stirring device after the vacuum degree reaches -0.09MPa, and dehydrate for 4 hours;

[0027] (2) Add 0.002g, 98wt% concentrated phosphoric acid to the reactor, keep a vacuum degree of -0.09MPa and a stirring state, turn off the oil bath heating device, turn on the condensed water to reduce the temperature in the reactor to 45±5°C, and stop...

Embodiment 2

[0036] A nano-ceramic polymer heavy-duty anti-corrosion coating, its components are composed of the following parts by weight: 35g polyurethane prepolymer, 20g modified acrylate, 13g polyaniline, 20g composite powder, 10g epoxy resin, 15g nano ceramics, 10g zirconia, 6g yttrium oxide, 5g glass wool, 3g porcelain powder, 1g kaolin, 1g mica powder, 12g zinc powder, 4g carbon black and 0.8g silicon defoamer.

[0037] Wherein, described polyurethane prepolymer preparation method is:

[0038] (1) Add 90g of polyether diol into the reaction kettle, set the temperature of the oil bath heating device to 110°C, turn on the vacuum pump, turn on the stirring device after the vacuum degree reaches -0.09MPa, and dehydrate for 4 hours;

[0039] (2) Add 0.004g, 98wt% concentrated phosphoric acid to the reactor, keep the vacuum degree and stirring state of -0.09MPa, turn off the oil bath heating device, turn on the condensed water, reduce the temperature in the reactor to 45±5°C, and stop sti...

Embodiment 3

[0048] A nano-ceramic polymer heavy-duty anti-corrosion coating, its components are composed of the following parts by weight: 40g polyurethane prepolymer, 25g modified acrylate, 16g polyaniline, 50g composite powder, 13g epoxy resin, 25g nano ceramics, 8g zirconia, 4g yttrium oxide, 8g glass wool, 6g porcelain powder, 10g kaolin, 8g mica powder, 10g zinc powder, 5g iron oxide red and 1g silicon defoamer.

[0049] Wherein, described polyurethane prepolymer preparation method is:

[0050] (1) Add 85g of polyether diol into the reaction kettle, set the temperature of the oil bath heating device to 110°C, turn on the vacuum pump, turn on the stirring device after the vacuum degree reaches -0.09MPa, and dehydrate for 4 hours;

[0051] (2) Add 0.005g, 98wt% concentrated phosphoric acid to the reaction kettle, keep the vacuum degree of -0.09MPa and stirring state, turn off the oil bath heating device, turn on the condensate water to reduce the temperature in the reaction kettle to 4...

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Abstract

The invention belongs to the technical field of anticorrosion coatings, and especially relates to a nano-ceramic polymer heavy-anticorrosion coating and a preparation method thereof. The coating which combines a polyaniline anticorrosion component with zinc powder has a double-synergistic anticorrosion effect, and has obviously enhanced anticorrosion performance. The use amount of the zinc powder is greatly reduced; concentrated phosphoric acid is added to a polyurethane prepolymer, can control the prepared anticorrosion coating keep neutral, and facilitates the wide application of the anticorrosion coating; composite powder used in the coating adopts graphene oxide, vanadium pentoxide, montmorillonite and other inorganic matters as a matrix material, so the use amount of the organic matters is greatly reduced, and the environmentally-friendly water-soluble anticorrosion coating is prepared; the graphene oxide, vanadium pentoxide and montmorillonite have good environment resistance and good mechanical properties, so the service life of the anticorrosion coating is prolonged; and polyaniline and the graphene oxide have synergistic effects, so the anticorrosion coating has a good metal corrosion function.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, in particular to a nano-ceramic polymer heavy-duty anti-corrosion coating and a preparation method thereof. Background technique [0002] Due to the limitations of its own material properties and technology, the traditional coating has an unsatisfactory corrosion protection effect on the base metal, and a considerable part of the coating contains toxic substances such as lead or chromate, which pollutes the environment during preparation and use. This is not compatible with the requirements of the socio-economic sustainable development strategy. At present, most of the commonly used anti-corrosion coatings are epoxy zinc-rich paints, but in the prior art, the dry film metal zinc content based on epoxy zinc-rich primers is more than 80%, and the adhesion and impact resistance of the coating The mechanical properties will decrease with the increase of zinc content, and the salt spr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D179/02C09D163/00C09D5/10C09D5/18C09D7/12C09D4/06C09D4/02C08G18/48
CPCC08G18/4825C08K2003/0893C08K2201/011C08K2201/014C08L2201/02C08L2205/03C09D4/06C09D5/106C09D5/18C09D175/08C08L79/02C08L63/00C08K13/04C08K7/14C08K3/346C08K3/34C08K3/08C08K3/04C08K3/00
Inventor 邹亚静
Owner 山东伟龙新材料有限责任公司
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