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CN115746666A - Rusty anticorrosive paint and preparation method thereof - Google Patents

Rusty anticorrosive paint and preparation method thereof Download PDF

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Publication number
CN115746666A
CN115746666A CN202211510423.9A CN202211510423A CN115746666A CN 115746666 A CN115746666 A CN 115746666A CN 202211510423 A CN202211510423 A CN 202211510423A CN 115746666 A CN115746666 A CN 115746666A
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China
Prior art keywords
parts
component
agent
anticorrosive paint
titanium dioxide
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Pending
Application number
CN202211510423.9A
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Chinese (zh)
Inventor
樊增华
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Jiangsu Tangmu Intelligent Technology Co ltd
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Jiangsu Tangmu Intelligent Technology Co ltd
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Priority to CN202211510423.9A priority Critical patent/CN115746666A/en
Publication of CN115746666A publication Critical patent/CN115746666A/en
Pending legal-status Critical Current

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Abstract

The invention provides a rusty anticorrosive paint which comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1:0.3; the component A comprises, by mass, 40-52 parts of glycidyl ester type epoxy resin, 4-6 parts of AGE active diluent, 2-4 parts of titanium dioxide liquid, 1-2 parts of Aureox AC-230 coupling agent, 0.5-1 part of gold group JT-738 corrosion inhibitor, 3-5 parts of German Schwegmann 8032Korrodur rust converting agent, 12-15 parts of antirust pigment, 8-12 parts of titanium dioxide, 15-20 parts of filler and 0.5-1 part of anti-settling agent; the component B is phenolic aldehyde amine modified curing agent. The invention adopts the modified epoxy resin with low viscosity, high solid content and low molecular weight, the special functional additive, the reactive diluent, the anticorrosive and antirust pigment and filler and the phenolic ammonia curing agent with excellent corrosion resistance to match, so that the penetration corrosion resistance is excellent; solves the problems of high requirement on substrate treatment and containing a large amount of VOC toxic and harmful substances in the conventional coating, and can be used for rusty low-surface treatment construction.

Description

Rusty anticorrosive paint and preparation method thereof
Technical Field
The invention relates to a rusty anticorrosive paint and a preparation method thereof.
Background
The corrosion is a large enemy of human beings, and the loss of steel caused by silver corrosion accounts for up to 4 percent of the total value of national economic production, and is six times of the total loss caused by all natural disasters.
The most economical and effective means for dealing with corrosion is to use an anticorrosive coating, and the consumption of the anticorrosive coating is large, and the anticorrosive coating is the second category in the ranking in the coating industry. The total amount of anticorrosive coatings used for corrosion protection in China exceeds millions of tons each year.
However, before a metal surface such as steel is coated with an anticorrosive paint, it is necessary to remove rust on the metal surface, and in some environments, it is necessary to remove moisture on the steel surface. For example, the coating of the marine structure has the surface treatment which is difficult to achieve the beauty; in addition, the ballast tank is narrow and small, which is not suitable for people to operate properly. Under these circumstances, the surface treatment of the steel surface is very difficult. Not only does this cost a lot of manpower and material resources, but also the surface is difficult to clean up. In any case, rust or moisture is difficult to remove.
Although the anticorrosive paint with low surface treatment exists in China, the corrosion prevention of the surface of the steel needs to be carried out under the condition of corrosion and in the presence of surface moisture, which is really a difficult and effective thing.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a rusty anticorrosive paint and a preparation method thereof, and provides an anticorrosive paint which can be used without completely treating a rusty layer on the surface of a substrate.
In order to solve the technical problems, the invention adopts the technical scheme that: the rusted anticorrosive paint consists of a component A and a component B, wherein the weight ratio of the component A to the component B is 1:0.3;
the component A comprises, by mass, 40-52 parts of glycidyl ester type epoxy resin, 4-6 parts of reactive diluent, 2-4 parts of titanium dioxide liquid, 1-2 parts of coupling agent, 0.5-1 part of corrosion inhibitor, 3-5 parts of rust converting agent, 12-15 parts of antirust pigment, 8-12 parts of titanium dioxide, 15-20 parts of filler and 0.5-1 part of anti-settling agent;
the component B is phenolic aldehyde amine modified curing agent.
Further, the coupling agent is an Ocimum AC-230 silane coupling agent.
Furthermore, the corrosion inhibitor is a gold group JT-738 corrosion inhibitor
Further, the antirust pigment is a mixture of zinc molybdate and titanium phosphate, and the ratio of the zinc molybdate to the titanium phosphate is 2:1.
Further, the filler is at least one of micaceous iron oxide, quartz sand and talcum powder.
Further, the anti-settling agent is at least one of inorganic bentonite polyamide and fumed silica.
Further, the rust converting agent is Schwegmann 8032Korrodur, germany.
Further, the preparation method of the rusty anticorrosive paint comprises the following steps:
s1, weighing raw materials according to a weight formula;
s2, preparing active nano liquid, namely sequentially adding one third of modified functional epoxy resin, partial active diluent and coupling agent into a production container, dispersing for 10-15 minutes at 400-600rmp, then adding nano titanium dioxide while dispersing, and dispersing at 400rmp at uniform speed until the nano titanium dioxide is completely dissolved;
s3, preparing the component A, namely pouring the residual epoxy resin and part of the reactive diluent into another container, differentiating for 5-10 minutes at 800-1000rmp, adding titanium dioxide, antirust pigment, filler and anti-settling agent into the container, dispersing for 30-40 minutes at 1200-1500rmp at a high speed, adding the residual reactive diluent, coupling agent and corrosion inhibitor, dispersing for 10 minutes at 800-1000rmp, adding the prepared reactive nano liquid, dispersing for 25-40 minutes at 800rmp, and adjusting the viscosity to 70-80KU to obtain the component A.
Compared with the prior art, the invention has the beneficial effects that: the modified epoxy resin with low viscosity, high solid content and low molecular weight, the special functional additive, the reactive diluent, the anticorrosive and antirust pigment and filler are matched with the phenolic ammonia curing agent with excellent corrosion resistance, so that the penetration corrosion resistance is excellent. Solves the problems of high requirement on substrate treatment, containing a large amount of VOC toxic and harmful substances and the like in the conventional coating, can be used for rusty low-surface treatment construction, saves labor and cleans the environment.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description is merely illustrative of the technical solutions of the present invention, and should not be construed as being all of the present invention or limiting or restricting the technical solutions of the present invention.
The rusty anticorrosive paint consists of a component A and a component B, wherein the weight ratio of the component A to the component B is 1:0.3;
the component A comprises, by mass, 40-52 parts of glycidyl ester type epoxy resin, 4-6 parts of reactive diluent, 2-4 parts of titanium dioxide liquid, 1-2 parts of coupling agent, 0.5-1 part of corrosion inhibitor, 3-5 parts of rust converting agent, 12-15 parts of antirust pigment, 8-12 parts of titanium dioxide, 15-20 parts of filler and 0.5-1 part of anti-settling agent;
the component B is phenolic aldehyde amine modified curing agent.
Wherein the coupling agent is an Aucardine AC-230 silane coupling agent; the corrosion inhibitor is gold group JT-738 polyphosphate; the antirust pigment is a mixture of zinc molybdate and titanium phosphate, and the ratio of the zinc molybdate to the titanium phosphate is 2:1.
The filler is at least one of micaceous iron oxide, quartz sand and talcum powder; the anti-settling agent is at least one of inorganic bentonite polyamide and fumed silica; the rust conversion agent is a German rust conversion agent Schwegmann 8032Korrodur.
A preparation method of a rusty anticorrosive paint comprises the following steps:
s1, weighing raw materials according to a weight formula;
s2, preparing active nano liquid, namely sequentially adding one third of modified functional epoxy resin, partial active diluent and coupling agent into a production container, dispersing for 10-15 minutes at 400-600rmp, then adding nano titanium dioxide while dispersing, and dispersing at 400rmp at uniform speed until the nano titanium dioxide is completely dissolved;
s3, preparing the component A, namely pouring the residual epoxy resin and part of the reactive diluent into another container, differentiating for 5-10 minutes at 800-1000rmp, adding titanium dioxide, antirust pigment, filler and anti-settling agent into the container, dispersing for 30-40 minutes at 1200-1500rmp at a high speed, adding the residual reactive diluent, coupling agent and corrosion inhibitor, dispersing for 10 minutes at 800-1000rmp, adding the prepared reactive nano liquid, dispersing for 25-40 minutes at 800rmp, and adjusting the viscosity to 70-80KU to obtain the component A.
The technical effects of the present invention will be further described with reference to the following examples.
Example 1
A rusted anticorrosive paint comprises 40kg of glycidyl ester type epoxy resin, 4kg of reactive diluent, 2kg of anatase type titanium dioxide liquid, 1kg of coupling agent, 0.5kg of corrosion inhibitor, 3kg of rust conversion agent, 12kg of antirust pigment, 8kg of titanium dioxide, 15kg of filler and 0.5kg of anti-settling agent.
Example 2
An anti-corrosive paint with rust comprises 44kg of glycidyl ester type epoxy resin, 4.7kg of reactive diluent, 2.6kg of anatase type titanium dioxide liquid, 1.3kg of coupling agent, 0.67kg of corrosion inhibitor, 3.4kg of rust converting agent, 13kg of anti-rust pigment, 9.2kg of titanium dioxide, 15.9kg of filler and 0.63kg of anti-settling agent.
Example 3
A rusted anticorrosive paint comprises 49kg of glycidyl ester type epoxy resin, 4kg of reactive diluent, 2kg of anatase type titanium dioxide liquid, 1kg of coupling agent, 0.83kg of corrosion inhibitor, 4.1kg of rust converting agent, 14kg of antirust pigment, 11.5kg of titanium dioxide, 18.6kg of filler and 0.95kg of anti-settling agent.
Example 4
An anti-corrosive paint with rust comprises 52kg of glycidyl ester type epoxy resin, 6kg of reactive diluent, 4kg of anatase type titanium dioxide liquid, 2kg of coupling agent, 1kg of corrosion inhibitor, 5kg of rust converting agent, 15kg of anti-rust pigment, 12kg of titanium dioxide, 20kg of filler and 1kg of anti-settling agent.
Before the anticorrosive paint with rust prepared in the embodiment is used, the adhesive matters such as dust, floating rust, oil stain, oxide skin and the like on the surface of the substrate are clear; cleaning with a high-pressure water gun or simply polishing with an electric tool or removing rust after work collection, wherein a firm rust layer exists on the surface of the Yunxi matrix, and the metal surface reaches st1 level. In general, the environmental temperature and the surface temperature of the substrate are generally in the range of 5-35 ℃ for construction, the relative humidity of air is not more than 85%, the surface temperature of the substrate is required to be higher than the dew point temperature by 3 ℃, and condensation is prevented. The coating method comprises brushing, roller coating and spraying, and when the brushing or roller coating mode is adopted, the coating is carried out by adopting a transverse and vertical crossing method, so that the coating fully infiltrates the surface of the substrate; when the spraying mode is practical, the coating is carried out by adopting an air spraying or high-pressure airless spraying method, and the coating is carried out with the gun nozzle being 30-40cm away from the base body.
The rusted anticorrosive paint provided by the invention adopts the modified epoxy resin with low viscosity, high solid content and low molecular weight, the special functional auxiliary agent, the active diluent, the anticorrosive and antirust pigment and filler and the phenolic ammonia curing agent with excellent corrosion resistance, so that the paint has excellent penetration and corrosion resistance. Solves the problems of high requirement on substrate treatment, containing a large amount of VOC toxic and harmful substances and the like in the conventional coating, can be used for rusty low-surface treatment construction, saves labor and cleans the environment.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.

Claims (8)

1. The rusted anticorrosive paint is characterized by comprising a component A and a component B, wherein the weight ratio of the component A to the component B is 1:0.3;
the component A comprises, by mass, 40-52 parts of glycidyl ester type epoxy resin, 4-6 parts of AGE active diluent, 2-4 parts of titanium dioxide liquid, 1-2 parts of coupling agent, 0.5-1 part of corrosion inhibitor, 3-5 parts of rust converting agent, 12-15 parts of antirust pigment, 8-12 parts of titanium dioxide, 15-20 parts of filler and 0.5-1 part of anti-settling agent;
the component B is phenolic aldehyde amine modified curing agent.
2. The rusted anticorrosive paint of claim 1, wherein the coupling agent is an austrian AC-230 silane-based coupling agent.
3. The rusted anticorrosive paint of claim 1, wherein the corrosion inhibitor is gold JT-738 polyphosphate.
4. The rust inhibitive paint of claim 1, wherein the rust inhibitive pigment is a mixture of zinc molybdate and titanium phosphate, and the ratio of zinc molybdate to titanium phosphate is 2:1.
5. The rusted anticorrosive paint of claim 1, wherein the filler is at least one of micaceous iron oxide, quartz sand, and talc.
6. The rusted anticorrosive paint according to claim 1, wherein the anti-settling agent is at least one of inorganic bentonite polyamide and fumed silica.
7. The rusted anticorrosive paint of claim 1, wherein the rust converting agent is a germany SSchwegmann 8032Korrodur rust converting agent.
8. A method for preparing the rusted anticorrosive paint according to claims 1 to 7, characterized by comprising the steps of:
s1, weighing raw materials according to a weight formula;
s2, preparing active nano liquid, namely sequentially adding one third of modified functional epoxy resin, partial active diluent and coupling agent into a production container, dispersing for 10-15 minutes at 400-600rmp, then adding nano titanium dioxide while dispersing, and dispersing at 400rmp at uniform speed until the nano titanium dioxide is completely dissolved;
s3, preparing the component A, namely pouring the residual epoxy resin and part of the reactive diluent into another container, differentiating for 5-10 minutes at 800-1000rmp, adding titanium dioxide, antirust pigment, filler and anti-settling agent into the container, dispersing for 30-40 minutes at 1200-1500rmp at a high speed, adding the residual reactive diluent, coupling agent and corrosion inhibitor, dispersing for 10 minutes at 800-1000rmp, adding the prepared reactive nano liquid, dispersing for 25-40 minutes at 800rmp, and adjusting the viscosity to 70-80KU to obtain the component A.
CN202211510423.9A 2022-11-29 2022-11-29 Rusty anticorrosive paint and preparation method thereof Pending CN115746666A (en)

Priority Applications (1)

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CN202211510423.9A CN115746666A (en) 2022-11-29 2022-11-29 Rusty anticorrosive paint and preparation method thereof

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Application Number Priority Date Filing Date Title
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Publications (1)

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CN115746666A true CN115746666A (en) 2023-03-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747825A (en) * 2008-12-19 2010-06-23 中国科学院海洋研究所 Environment-friendly solvent-free humidified and rusted anticorrosive paint
CN104017458A (en) * 2014-03-31 2014-09-03 中国船舶重工集团公司第七二五研究所 Solvent-free epoxy antirust coating capable of coating with rust and preparation method thereof
CN107603423A (en) * 2017-08-22 2018-01-19 洛阳双瑞防腐工程技术有限公司 A kind of underwater curing ocean steel construction durably anticorrosion paint and preparation method thereof
CN112920649A (en) * 2021-01-27 2021-06-08 深圳市嘉达节能环保科技有限公司 Graphene modified rust conversion anticorrosive paint
CN115011213A (en) * 2022-07-26 2022-09-06 山东乐化漆业股份有限公司 Solvent-free heavy-duty anticorrosive paint capable of being coated with water and rust and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747825A (en) * 2008-12-19 2010-06-23 中国科学院海洋研究所 Environment-friendly solvent-free humidified and rusted anticorrosive paint
CN104017458A (en) * 2014-03-31 2014-09-03 中国船舶重工集团公司第七二五研究所 Solvent-free epoxy antirust coating capable of coating with rust and preparation method thereof
CN107603423A (en) * 2017-08-22 2018-01-19 洛阳双瑞防腐工程技术有限公司 A kind of underwater curing ocean steel construction durably anticorrosion paint and preparation method thereof
CN112920649A (en) * 2021-01-27 2021-06-08 深圳市嘉达节能环保科技有限公司 Graphene modified rust conversion anticorrosive paint
CN115011213A (en) * 2022-07-26 2022-09-06 山东乐化漆业股份有限公司 Solvent-free heavy-duty anticorrosive paint capable of being coated with water and rust and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
薛茹君 等: "无机纳米材料的表面修饰改性与物性研究", vol. 1, 31 October 2009, 合肥工业大学出版社, pages: 40 *

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Application publication date: 20230307

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