CN115820068A - Water-based anticorrosive fireproof coating and preparation method thereof - Google Patents
Water-based anticorrosive fireproof coating and preparation method thereof Download PDFInfo
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- CN115820068A CN115820068A CN202211547884.3A CN202211547884A CN115820068A CN 115820068 A CN115820068 A CN 115820068A CN 202211547884 A CN202211547884 A CN 202211547884A CN 115820068 A CN115820068 A CN 115820068A
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Abstract
The invention relates to a water-based anticorrosive fireproof coating which comprises the following components in parts by weight: 60-70 parts of melamine formaldehyde resin, 20-30 parts of flame retardant, 10-20 parts of dipentaerythritol, 3-5 parts of boric acid, 2-4 parts of citric acid, 1-3 parts of polydimethylsiloxane, 1-3 parts of BYK-333, 2-4 parts of dodecanol ester, 1-3 parts of BYK-450, 1-3 parts of talcum powder and 20-30 parts of water. According to the invention, the composition of the flame retardant is optimized, so that the fireproof and flame-retardant effects of the coating are greatly improved, and the application scene of high fireproof requirements can be met.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based anticorrosive fireproof coating and a preparation method thereof.
Background
The fireproof paint is a special paint which is coated on the surface of a protected substrate in a brush coating or spraying manner. The fireproof paint has multiple purposes of protection, decoration, corrosion prevention and the like, and various kinds of fireproof paint used for the surfaces of wood, steel and the like is prepared by adding various pigments, additives, fillers and functional additives into various kinds of common resins and emulsions on the market. The paint is generally composed of four substances of film-forming substances, pigments, solvents and corresponding flame retardants. According to the dispersion medium in the coating, the coating is divided into solvent type coating and water-based coating.
Materials and energy college Ma Tongtong, li Liping at southern China university of agriculture prepares intumescent clear coatings using allyl functionalized phosphazene (HABP), trimethylolpropane. The prepared swelling transparent coating is coated on the surface of wood, so that the wood has flame retardance and hydrophobicity. The results show that as the amount of additive is increased, the flame retardancy and hydrophobicity of the coating are increased and the sample can pass the UL-94V-0 test. The flame retardant performance of wood samples was investigated by infrared spectroscopy and UL94, TGA-FTIR, SEM and EDS, and the results show that the flame retardant effect of the fire retardant coating is produced by expansion, which forms a layer of phosphorus-carbon heat resistant carbon in the condensed phase and also releases a large amount of non-combustibles in the gas phase, e.g. carbon dioxide, which dilutes the oxygen content of the flame zone. The test result shows that the interface adhesive force of the tested material is 4B level, and the corresponding fireproof coating has good wear resistance.
The research shows that the quality of an expanded carbon layer is improved by adding the flame retardant, wherein the water-based ultrathin indoor steel structure fireproof coating is prepared from melamine, pentaerythritol, diatomite, ammonium polyphosphate, VAE emulsion and expandable graphite by Cheng Xuejun and the like of Ningjing brand Xindaji resin finite liability company. The prepared steel structure fireproof coating meets the requirements in GB14907-2018 Steel structure fireproof coating. When the contents of the diatomite and the titanium dioxide are 10-12.5%, the flame-retardant time reaches 120min, and the back temperature of the steel plate does not reach 200 ℃. When the addition amount of the titanium dioxide is 4.5% and the addition amount of the diatomite is 8%, the flame retardant effect of the fireproof coating is good, and the fireproof coating can play a role in protection. The prepared water-based ultrathin indoor steel structure fireproof coating meets the requirements of standards in various indexes such as fire resistance time and the like, and the prepared water-based steel structure fireproof coating belongs to an environment-friendly coating. The fireproof coating has simple preparation and production processes, has good fireproof performance and decoration performance, and is a better fireproof coating for indoor steel structures.
In the prior art, CN114752243A discloses the application of flame-retardant modified ammonium polyphosphate in a fire-retardant coating, however, the preparation process of the flame-retardant modified ammonium polyphosphate is complex, and the fire-retardant effect is found by the application to be difficult to meet the scene of high fire-retardant requirement, and the fire-retardant effect needs to be further improved.
Disclosure of Invention
In order to further improve the fireproof effect on the basis of the prior art, the invention provides a water-based anticorrosive fireproof coating, which comprises the following components in parts by weight:
60-70 parts of melamine formaldehyde resin;
20-30 parts of a flame retardant;
10-20 parts of dipentaerythritol;
3-5 parts of boric acid;
2-4 parts of citric acid;
1 to 3 parts of polydimethylsiloxane
1-3 parts of BYK-333;
2-4 parts of dodecyl alcohol ester;
1-3 parts of BYK-450;
1-3 parts of talcum powder;
20 to 30 portions of water.
The invention also provides a preparation method of the water-based anticorrosive fireproof coating, which comprises the steps of uniformly mixing the melamine formaldehyde resin and water, sequentially adding the flame retardant, the dipentaerythritol and the boric acid under the stirring condition, and continuously stirring to fully disperse all the components; and adding citric acid, polydimethylsiloxane, BYK-333, dodecyl alcohol ester, BYK-450 and talcum powder, stirring and filtering to obtain the water-based anticorrosive fireproof coating.
Preferably, the flame retardant is prepared by compounding a flame retardant A and a flame retardant B according to the weight ratio of 1:1;
flame retardant A:
and (3) a flame retardant B:
advantageous effects
The invention improves the fireproof effect of the coating by optimizing the composition of the flame retardant on the basis of the prior art), the flame retardant A and the flame retardant B in the flame retardant can exert the technical effect of synergistic interaction, and the technical effect of synergistic interaction can only occur in specific components and specific proportions, so that the scene of high fireproof requirement can be met.
Drawings
FIG. 1 is an SEM image of a burning carbon layer of the water-based anticorrosive fireproof paint in example 2.
Detailed Description
Example 1
The water-based anticorrosive fireproof coating comprises the following components in parts by weight:
60 parts of melamine formaldehyde resin;
20 parts of a flame retardant;
10 parts of dipentaerythritol;
3 parts of boric acid;
2 parts of citric acid;
1 part of polydimethylsiloxane;
1 part of BYK-333;
2 parts of dodecyl alcohol ester;
1 part of BYK-450;
1 part of talcum powder;
20 parts of water.
Uniformly mixing melamine formaldehyde resin and water, sequentially adding a flame retardant, dipentaerythritol and boric acid under the stirring condition, and continuously stirring to fully disperse all components; and adding citric acid, polydimethylsiloxane, BYK-333, dodecyl alcohol ester, BYK-450 and talcum powder, stirring and filtering to obtain the water-based anticorrosive fireproof coating.
The flame retardant is formed by compounding a flame retardant A and a flame retardant B according to the weight ratio of 1:1;
flame retardant A:
and (3) a flame retardant B:
example 2
The water-based anticorrosive fireproof coating comprises the following components in parts by weight:
65 parts of melamine formaldehyde resin;
25 parts of a flame retardant;
15 parts of dipentaerythritol;
4 parts of boric acid;
3 parts of citric acid;
2 parts of polydimethylsiloxane;
2 parts of BYK-333;
3 parts of dodecanol ester;
2 parts of BYK-450;
2 parts of talcum powder;
25 parts of water.
Uniformly mixing melamine formaldehyde resin and water, sequentially adding a flame retardant, dipentaerythritol and boric acid under the stirring condition, and continuously stirring to fully disperse all components; and adding citric acid, polydimethylsiloxane, BYK-333, dodecyl alcohol ester, BYK-450 and talcum powder, stirring and filtering to obtain the water-based anticorrosive fireproof coating.
The flame retardant is formed by compounding a flame retardant A and a flame retardant B according to the weight ratio of 1:1;
flame retardant A:
and (3) a flame retardant B:
example 3
The water-based anticorrosive fireproof coating comprises the following components in parts by weight:
70 parts of melamine formaldehyde resin;
30 parts of a flame retardant;
20 parts of dipentaerythritol;
5 parts of boric acid;
4 parts of citric acid;
3 parts of polydimethylsiloxane
3 parts of BYK-333;
4 parts of dodecanol ester;
3 parts of BYK-450;
3 parts of talcum powder;
30 parts of water.
Uniformly mixing melamine formaldehyde resin and water, sequentially adding a flame retardant, dipentaerythritol and boric acid under the stirring condition, and continuously stirring to fully disperse all components; and adding citric acid, polydimethylsiloxane, BYK-333, dodecyl alcohol ester, BYK-450 and talcum powder, stirring and filtering to obtain the water-based anticorrosive fireproof coating.
The flame retardant is formed by compounding a flame retardant A and a flame retardant B according to the weight ratio of 1:1;
flame retardant A:
and (3) a flame retardant B:
comparative example
Comparative examples 1 to 6 were the same as example 2 except that the constitution of the flame retardant in example 2 was changed.
| Comparative example 1 | Addition of flame retardant A only |
| Comparative example 2 | Addition of flame retardant B only |
| Comparative example 3 | Flame retardant A: ethanolamine-modified ammonium polyphosphate =1:1 |
| Comparative example 4 | Ethanolamine-modified ammonium polyphosphate: flame retardant B =1:1 |
| Comparative example 5 | Flame retardant a flame retardant B =1:2 |
| Comparative example 6 | Flame retardant a flame retardant B =2:1 |
Effect characterization
The combustion behavior was determined according to GB/T2406.2-2009 section 2 for plastics by oxygen index method: the limit oxygen index is tested according to room temperature test, the combustion growth rate (FIGRA0.2MJ) is tested according to GB8624-2012 'grading of combustion performance of building materials and products', and the results are as follows:
| numbering | Limiting oxygen index | Rate of combustion increase |
| Example 2 | 94％ | 25W/s |
| Comparative example 1 | 74％ | 41W/s |
| Comparative example 2 | 78％ | 38W/s |
| Comparative example 3 | 66％ | 49W/s |
| Comparative example 4 | 69％ | 45W/s |
| Comparative example 5 | 86％ | 30W/s |
| Comparative example 6 | 83％ | 32W/s |
From the above results, it can be seen that: (1) The invention optimizes the composition of the fire retardant, has very good fire-proof effect which is superior to that of CN114752243A in the prior art: (2) As can be seen from example 2 and comparative examples 1-2, flame retardant A and flame retardant B exert synergistic technical effects, and the fire-retardant effect is superior to that of single flame retardant A or flame retardant B; (2) From example 2 and comparative examples 3 to 4, it can be seen that when the flame retardant A or the flame retardant B is replaced by the conventional flame retardant in the art (such as ethanolamine-modified ammonium polyphosphate), the flame retardant cannot produce a synergistic technical effect, which indicates that the synergistic technical effect depends on the composition of the flame retardant, and that not any flame retardant can produce a similar effect when compounded; (3) From example 2 and comparative examples 4 to 6, it can be seen that the flame retardant effect is not good when the compounding ratio is not 1:1, which indicates that flame retardants a and B are only 1:1, the ideal fireproof and flame-retardant effect can be produced.
Claims (3)
1. The water-based anticorrosive fireproof coating is characterized by comprising the following components in parts by weight:
60-70 parts of melamine formaldehyde resin;
20-30 parts of a flame retardant;
10-20 parts of dipentaerythritol;
3-5 parts of boric acid;
2-4 parts of citric acid;
1 to 3 parts of polydimethylsiloxane
1-3 parts of BYK-333;
2-4 parts of dodecyl alcohol ester;
1-3 parts of BYK-450;
1-3 parts of talcum powder;
20 to 30 portions of water.
2. A preparation method of the water-based anti-corrosion fireproof coating as claimed in claim 1, characterized in that, the melamine formaldehyde resin is evenly mixed with water, and under the condition of stirring, the flame retardant, the dipentaerythritol and the boric acid are sequentially added, and the components are fully dispersed by continuous stirring; and adding citric acid, polydimethylsiloxane, BYK-333, dodecyl alcohol ester, BYK-450 and talcum powder, stirring, and filtering to obtain the water-based anticorrosive fireproof coating.
3. The water-based anticorrosive fireproof paint according to claim 1, wherein the flame retardant is prepared by compounding a flame retardant A and a flame retardant B according to a weight ratio of 1:1;
flame retardant A:
and (3) a flame retardant B:
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| CN202211547884.3A CN115820068B (en) | 2022-12-05 | 2022-12-05 | Water-based anti-corrosion fireproof coating and preparation method thereof |
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| CN115820068B CN115820068B (en) | 2023-10-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285040A (en) * | 2023-03-30 | 2023-06-23 | 东莞市利群榕兴高分子科技有限公司 | Antistatic high-strength nitrile rubber/potassium sorbate composite material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101376665A (en) * | 2008-09-29 | 2009-03-04 | 四川东材科技集团股份有限公司 | Phosphaphenanthrene flame-retardant compound containing s-triazine structure, and preparation and use thereof |
| CN105482684A (en) * | 2015-12-04 | 2016-04-13 | 青岛唐鹏钢结构工程有限公司 | Aqueous ultrafine steel structure fireproof coating |
| JP6773351B1 (en) * | 2019-07-17 | 2020-10-21 | 烟台大学Ｙａｎｔａｉ Ｕｎｉｖｅｒｓｉｔｙ | Application to nitrogen-phosphorus-based expansive flame retardants and methods for adjusting water-based polyurethane paints |
| CN114752243A (en) * | 2022-04-06 | 2022-07-15 | 四川大学 | Water-based fireproof anticorrosive paint for building materials and preparation method thereof |
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2022
- 2022-12-05 CN CN202211547884.3A patent/CN115820068B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376665A (en) * | 2008-09-29 | 2009-03-04 | 四川东材科技集团股份有限公司 | Phosphaphenanthrene flame-retardant compound containing s-triazine structure, and preparation and use thereof |
| CN105482684A (en) * | 2015-12-04 | 2016-04-13 | 青岛唐鹏钢结构工程有限公司 | Aqueous ultrafine steel structure fireproof coating |
| JP6773351B1 (en) * | 2019-07-17 | 2020-10-21 | 烟台大学Ｙａｎｔａｉ Ｕｎｉｖｅｒｓｉｔｙ | Application to nitrogen-phosphorus-based expansive flame retardants and methods for adjusting water-based polyurethane paints |
| CN114752243A (en) * | 2022-04-06 | 2022-07-15 | 四川大学 | Water-based fireproof anticorrosive paint for building materials and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 李智奇;许苗军;高健;李斌;: "高效阻燃硅橡胶材料的制备及性能研究", 化学与粘合 * |
| 汤俊杰;唐安斌;黄杰;: "新型含三嗪结构氧杂膦菲阻燃剂的合成", 精细化工 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285040A (en) * | 2023-03-30 | 2023-06-23 | 东莞市利群榕兴高分子科技有限公司 | Antistatic high-strength nitrile rubber/potassium sorbate composite material and preparation method thereof |
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| CN115820068B (en) | 2023-10-17 |
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Effective date of registration: 20230919 Address after: Building 5, No. 10 Xinlong Road, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province, 529700 Applicant after: Guangdong Chengmei New Materials Technology Co.,Ltd. Address before: No. 118, Paradise Street, South Changshan Town, Changdao County, Yantai, Shandong 265800 Applicant before: Changdao Dongpeng Engineering Technology Center |
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