CN112280434A - Novel fireproof powder coating - Google Patents
Novel fireproof powder coating Download PDFInfo
- Publication number
- CN112280434A CN112280434A CN202011247887.6A CN202011247887A CN112280434A CN 112280434 A CN112280434 A CN 112280434A CN 202011247887 A CN202011247887 A CN 202011247887A CN 112280434 A CN112280434 A CN 112280434A
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- China
- Prior art keywords
- parts
- coating
- powder coating
- flame retardant
- graphene oxide
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
- C09D5/185—Intumescent paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a novel fireproof powder coating, which improves the flame retardant and fireproof performance of the coating by adding graphene oxide, and a compact physical isolation layer is formed by a two-dimensional lamellar structure of the graphene, and is simultaneously compounded with resin in a crosslinking manner to further form a protective film for isolating air, generate carbon dioxide at high temperature and generate a carbon layer to strengthen the isolation effect. Polyvinyl alcohol is used as a carbon forming agent, ammonium dihydrogen phosphate is used as a catalyst, melamine is used as a foaming agent to obtain a specific intumescent flame retardant, and the appearance quality of a coating film is also ensured while the intumescent flame retardant effect is ensured by adjusting the proportion of each component. The graphene oxide and the intumescent flame retardant are synergistic, so that the fireproof performance of the coating is further improved.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to a novel fireproof powder coating.
Background
With the development of the industry, environmental problems are increasingly highlighted. The traditional coating usually adopts volatile organic compounds as solvents, which can cause environmental pollution.
The powder coating is different from the traditional solvent-based coating and water-based coating, and adopts air as a dispersing medium without solvent and water, so that the powder coating has no solvent pollution. The powder coating is prepared by mixing resin, pigment, curing agent and other auxiliary agents according to a certain proportion, and then carrying out processes such as extrusion, crushing, sieving and the like. In the using process, methods such as spraying, dip coating and the like are generally adopted, and then the flat coating is formed through heating and curing.
The powder coating has the advantages of energy conservation, pollution reduction, simple and easy process, excellent mechanical property of the coating and the like, and solves the problems of high construction difficulty, long period, high cost and the like of the liquid coating.
The powder coating has been receiving more and more attention due to the above advantages, and is widely used in the electrical industry, the marine industry, the automobile industry, and the like. Due to the inflammability of the resin, the fireproof performance of the resin is improved, and the application range and the safety performance of the powder coating can be greatly expanded. Graphene is also widely used in paints due to its special properties.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a novel fireproof powder coating with excellent fireproof performance. According to the invention, polyvinyl alcohol, ammonium dihydrogen phosphate and melamine are used as intumescent flame retardants, and graphene oxide is added to perform a synergistic effect with the intumescent flame retardants, so that the fireproof performance of the powder coating is further improved.
The invention provides the following technical scheme:
the novel fireproof powder coating is prepared by mixing, extruding, crushing and sieving raw materials, wherein the raw materials comprise the following components in parts by weight:
40-50 parts of epoxy resin
15-25 parts of polyester resin
1-3 parts of flatting agent
0.5-2 parts of benzoin
20-25 parts of ammonium dihydrogen phosphate
13-15 parts of polyvinyl alcohol
13-15 parts of melamine
5-10 parts of pigment
1-2 parts of graphene oxide
3-5 parts of a smoke suppressant.
The smoke suppressant is preferably zinc oxide.
Preferably, the mixture ratio of the raw materials is as follows: 45 parts of epoxy resin, 15 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 25 parts of ammonium dihydrogen phosphate, 15 parts of polyvinyl alcohol, 15 parts of melamine, 10 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant.
Preferably, the mixture ratio of the raw materials is as follows: 50 parts of epoxy resin, 20 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 24 parts of ammonium dihydrogen phosphate, 14 parts of polyvinyl alcohol, 14 parts of melamine, 8 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant.
Preferably, the preparation method comprises the following steps: crushing the raw materials to 200 meshes, uniformly mixing, melting and extruding, crushing to 300 meshes of 200 meshes, and sieving to obtain the product.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the flame retardant and fireproof performance of the coating is improved by adding the graphene oxide, a compact physical isolation layer is formed by a two-dimensional lamellar structure of the graphene, and the graphene is crosslinked and compounded with the resin, so that a protective film for isolating air is further formed, carbon dioxide can be generated at high temperature, and the carbon layer is generated to strengthen the isolation effect.
2. The invention adopts polyvinyl alcohol as a carbon forming agent, ammonium dihydrogen phosphate as a catalyst and melamine as a foaming agent to obtain the specific intumescent flame retardant, and the appearance quality of the coating is ensured while the intumescent flame retardant effect is ensured by adjusting the proportion of the components.
3. The graphene oxide and the intumescent flame retardant are synergistic, so that the fireproof performance of the coating is further improved.
Detailed Description
The present invention will be described in detail with reference to examples, but the practice of the invention is not limited thereto.
Example 1
A novel fireproof coating comprises the following raw materials in parts by weight: 45 parts of epoxy resin, 15 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 25 parts of ammonium dihydrogen phosphate, 15 parts of polyvinyl alcohol, 15 parts of melamine, 10 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant. The preparation method comprises the following steps: pulverizing the raw materials to 200 meshes, uniformly mixing, carrying out melt extrusion, pulverizing to 300 meshes, and sieving to obtain the product.
Example 2
A novel fireproof coating comprises the following raw materials in parts by weight: 50 parts of epoxy resin, 20 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 24 parts of ammonium dihydrogen phosphate, 14 parts of polyvinyl alcohol, 14 parts of melamine, 8 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant. The preparation method comprises the following steps: pulverizing the raw materials to 200 meshes, uniformly mixing, carrying out melt extrusion, pulverizing to 300 meshes, and sieving to obtain the product.
Comparative example 1
The novel fireproof coating is the same as the novel fireproof coating in the embodiment 1 except that graphene oxide is not added.
Comparative example 2
A novel fire retardant coating was prepared by adjusting polyvinyl alcohol to 10 parts, and the remainder was the same as in example 1.
Comparative example 3
A novel fire retardant coating is prepared by adjusting melamine to 10 parts, and the rest is the same as example 1.
Comparative example 4
A novel fire retardant coating, ammonium dihydrogen phosphate was adjusted to 30 parts, and the rest was the same as in example 1.
Comparative example 5
A novel fire retardant coating is prepared by replacing polyvinyl alcohol with pentaerythritol, and the rest is the same as in example 1.
Comparative example 6
A novel fire retardant coating is prepared by replacing ammonium dihydrogen phosphate with ammonium polyphosphate, and the rest is the same as in example 1.
The powder coatings prepared in examples 1-2 and comparative examples 1-5 were sprayed on a stainless steel plate by electrostatic spraying, cured by heating to the same thickness, ignited by alcohol burner flame, and tested for flame retardant effect:
Claims (5)
1. the novel fireproof powder coating is characterized in that the coating is prepared by mixing, extruding, crushing and sieving raw materials, and the raw materials comprise the following components in parts by weight:
40-50 parts of epoxy resin
15-25 parts of polyester resin
1-3 parts of flatting agent
0.5-2 parts of benzoin
20-25 parts of ammonium dihydrogen phosphate
13-15 parts of polyvinyl alcohol
13-15 parts of melamine
5-10 parts of pigment
1-2 parts of graphene oxide
3-5 parts of a smoke suppressant.
2. A novel fire retardant powder coating according to claim 1, wherein the smoke suppressant is preferably zinc oxide.
3. The novel fireproof powder coating of claim 1, wherein the raw materials comprise: 45 parts of epoxy resin, 15 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 25 parts of ammonium dihydrogen phosphate, 15 parts of polyvinyl alcohol, 15 parts of melamine, 10 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant.
4. The novel fireproof powder coating of claims 1-3, wherein the raw materials are in the following proportions: 50 parts of epoxy resin, 20 parts of polyester resin, 1 part of flatting agent, 0.5 part of benzoin, 24 parts of ammonium dihydrogen phosphate, 14 parts of polyvinyl alcohol, 14 parts of melamine, 8 parts of pigment, 2 parts of graphene oxide and 5 parts of smoke suppressant.
5. A novel fire-retardant powder coating according to claims 1-4, prepared by a process comprising: crushing the raw materials to 200 meshes, uniformly mixing, melting and extruding, crushing to 300 meshes of 200 meshes, and sieving to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011247887.6A CN112280434A (en) | 2020-11-10 | 2020-11-10 | Novel fireproof powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011247887.6A CN112280434A (en) | 2020-11-10 | 2020-11-10 | Novel fireproof powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112280434A true CN112280434A (en) | 2021-01-29 |
Family
ID=74351991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011247887.6A Pending CN112280434A (en) | 2020-11-10 | 2020-11-10 | Novel fireproof powder coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112280434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235318A (en) * | 2021-04-29 | 2021-08-10 | 安徽弋尚纺织科技有限公司 | Preparation process of warm-keeping flame-retardant fabric |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085897A (en) * | 2006-06-09 | 2007-12-12 | 徐州正菱涂装有限公司 | Steel structure fireproof powder coating and preparing method thereof |
| CN103045037A (en) * | 2012-12-14 | 2013-04-17 | 中盈长江国际新能源投资有限公司 | Water-based expandable fireproof steel structure coating and preparation method |
| CN108641452A (en) * | 2018-06-05 | 2018-10-12 | 石磊 | A kind of preparation method of fire-proof coating for tunnels |
-
2020
- 2020-11-10 CN CN202011247887.6A patent/CN112280434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085897A (en) * | 2006-06-09 | 2007-12-12 | 徐州正菱涂装有限公司 | Steel structure fireproof powder coating and preparing method thereof |
| CN103045037A (en) * | 2012-12-14 | 2013-04-17 | 中盈长江国际新能源投资有限公司 | Water-based expandable fireproof steel structure coating and preparation method |
| CN108641452A (en) * | 2018-06-05 | 2018-10-12 | 石磊 | A kind of preparation method of fire-proof coating for tunnels |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235318A (en) * | 2021-04-29 | 2021-08-10 | 安徽弋尚纺织科技有限公司 | Preparation process of warm-keeping flame-retardant fabric |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210129 |
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| RJ01 | Rejection of invention patent application after publication |