CN108587357A - Thin section steel structure anti-flaming dope - Google Patents
Thin section steel structure anti-flaming dope Download PDFInfo
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- CN108587357A CN108587357A CN201810533477.4A CN201810533477A CN108587357A CN 108587357 A CN108587357 A CN 108587357A CN 201810533477 A CN201810533477 A CN 201810533477A CN 108587357 A CN108587357 A CN 108587357A
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- graphene oxide
- steel structure
- section steel
- thin section
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
-
- 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
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention proposes a kind of thin section steel structure anti-flaming dope, which is characterized in that according to parts by weight, including following components：18~24 parts of 40~60 parts of acrylic emulsion, 20~40 parts of pure-acrylic emulsion, 4~8 parts of ammonium hydrogen carbonate, 5~10 parts of starch, 8~16 parts of fire retardant, 0.4~0.8 part of wetting dispersing agent, 0.3~0.6 part of levelling agent and filler；Wherein, the fire retardant is mainly prepared by graphene oxide, more carbon nanotubes and Shiff base derivative of carboxymerhyl chitosan.The anti-flaming dope is not only good in foaming and intumescing initial stage heat-proof quality, also improves the intensity of the charring layer of expansion multiple and coating after by fire.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of thin section steel structure anti-flaming dope.
Background technology
Structural steelwork has from heavy and light, installation big using space is easy, short construction period, anti-seismic performance are good, investment
The advantages that gain quick return, low in the pollution of the environment is used widely in the modern times, but it has the deadly defect of fire resistance difference again.Just
Under normal load situation, steel construction can lose carrying and act at 540 DEG C or so, and under hydro carbons fire field environment, temperature is usually 10
1000 DEG C are risen within minute, under such circumstances, steel construction will appear deformation quickly, generate local failure, and lose
Bearing capacity.To improve the fire resistance of steel construction, steel construction periphery needs to be thermally shielded cladding to improve the fire resisting pole of building
Limit.
Fire-resistant coating for steel structure has the characteristics that coating thickness is thin, facing type is good, is widely used in steel construction, is meeting
Under fiery heating condition can rapid expanding to more than ten times of original thickness even decades of times, it is fine and close in one layer of steel structure surface formation
Insulating prevents heat from being transmitted to steel construction, plays the function of improving fire endurance.But it is unexpansive relative to other
Type fireproof coating, existing fire-resistant coating for steel structure is relatively low in foaming and intumescing initial stage heat-insulating capability, causes steel construction in heat-insulated guarantor
Temperature rise is larger before the expansion completely of warm layer, and whole fire resisting effect is usually not so good as Non-expansive fireproof paint, and most coating
The heavy burden of steel construction is increased larger, application effect is undesirable, using being restricted.
Invention content
The present invention proposes a kind of thin section steel structure anti-flaming dope, and the anti-flaming dope is not only in foaming and intumescing initial stage thermal insulation
Can be good, also improve the intensity of the charring layer of expansion multiple and coating after by fire.
The technical proposal of the invention is realized in this way：
A kind of thin section steel structure anti-flaming dope, according to parts by weight, including following components：
40~60 parts of acrylic emulsion, 20~40 parts of pure-acrylic emulsion, 4~8 parts of ammonium hydrogen carbonate, 5~10 parts of starch, fire retardant
18~24 parts of 8~16 parts, 0.4~0.8 part of wetting dispersing agent, 0.3~0.6 part of levelling agent and filler；Wherein, the fire retardant master
It to be prepared by graphene oxide, more carbon nanotubes and Shiff base derivative of carboxymerhyl chitosan.
Preferably, the preparation method of the fire retardant includes the following steps：
1) citric acid solution added graphene oxide into 5~10wt% carries out 6~10h of immersion treatment, is obtained by filtration
The graphene oxide of acid processing；
2) mixed acid that more carbon nanotubes are added to the dust technology of 10~20wt% and the dilute sulfuric acid of 10~20wt% is molten
In liquid, the graphene oxide for then adding the acid processing of step 1) carries out ultrasonic disperse, and filtration washing is neutrality up to filtrate,
The mixture of pretreated graphene oxide and more carbon nanotubes is obtained after drying；
3) the pretreated mixture of step 2) is added to 4~8wt% Shiff base derivative of carboxymerhyl chitosan solution
Middle carry out ultrasonic disperse is warming up to 40 DEG C~60 DEG C reactions, carries out ultrasonic disperse, filtration drying after reaction.
Preferably, than being 7 between graphene oxide, more carbon nanotubes and the quality of Shiff base derivative of carboxymerhyl chitosan
~11:4~6:10~13.
Preferably, the wetting dispersing agent is calgon wetting agent；The levelling agent selects water-and acrylate total
Polymers, fluorine richness polyacrylate copolymer or Siloxane-Oxyalkylene Copolymers polymer are one such.
Preferably, the filler is selected from one or more of titanium dioxide, montmorillonite, talcum powder, aluminosilicate fiber.
The preparation method of the thin section steel structure anti-flaming dope of the present invention：After being mixed the above components evenly according to proportioning i.e.
It can.
Beneficial effects of the present invention：
The fire retardant of the thin section steel structure anti-flaming dope of the present invention is mainly by fire retardant mainly by graphene oxide, more carbon
Nanotube is prepared with Shiff base derivative of carboxymerhyl chitosan, and such new fire retardant was not reported before being.
The fire retardant is by deriving citric acid to graphene oxide pretreatment, then with more carbon nanotubes and carboxymethyl chitosan schiff base
Object is reacted, and the charring layer of conventional expanded graphite and base material poor adhesive force, are not easy from base material when solving the problems, such as heated
Emaciated face is fallen.On the other hand, carbon nanotube is modified, improves the strength and toughness of coating, prevents high temperature from cracking, improved and apply
The consistency of charring layer after material is expanded by fire, to improve the fire protecting performance of coating.
Specific implementation mode
Embodiment 1
The preparation method of fire retardant includes the following steps：
1) citric acid solution for adding graphene oxide into 5wt% carries out immersion treatment 10h, and acid processing is obtained by filtration
Graphene oxide；
2) more carbon nanotubes are added in the mixed acid solution of the dust technology of 10wt% and the dilute sulfuric acid of 20wt%, then
The graphene oxide for adding the acid processing of step 1) carries out ultrasonic disperse, and filtration washing is neutrality up to filtrate, after drying
To the mixture of pretreated graphene oxide and more carbon nanotubes；
3) by the pretreated mixture of step 2) be added in 8wt% Shiff base derivative of carboxymerhyl chitosan solution into
Row ultrasonic disperse is warming up to 40 DEG C of reactions, carries out ultrasonic disperse, filtration drying after reaction.Graphene oxide, more carbon
Than being 7 between nanotube and the quality of Shiff base derivative of carboxymerhyl chitosan:6:13.
Embodiment 2
The preparation method of fire retardant includes the following steps：
1) citric acid solution for adding graphene oxide into 10wt% carries out immersion treatment 6h, and acid processing is obtained by filtration
Graphene oxide；
2) more carbon nanotubes are added in the mixed acid solution of the dust technology of 20wt% and the dilute sulfuric acid of 10wt%, then
The graphene oxide for adding the acid processing of step 1) carries out ultrasonic disperse, and filtration washing is neutrality up to filtrate, after drying
To the mixture of pretreated graphene oxide and more carbon nanotubes；
3) by the pretreated mixture of step 2) be added in 4wt% Shiff base derivative of carboxymerhyl chitosan solution into
Row ultrasonic disperse is warming up to 60 DEG C of reactions, carries out ultrasonic disperse, filtration drying after reaction.Graphene oxide, more carbon
Than being 11 between nanotube and the quality of Shiff base derivative of carboxymerhyl chitosan:4:10.
Embodiment 3
A kind of thin section steel structure anti-flaming dope, according to parts by weight, including following components：
50 parts of acrylic emulsion, 28 parts of pure-acrylic emulsion, 6 parts of ammonium hydrogen carbonate, 7 parts of starch, embodiment 1 12 parts of fire retardant,
10 parts of 0.6 part of calgon wetting agent, 0.5 part of water-borne acrylate copolymer and titanium dioxide, 10 parts of montmorillonite.
Embodiment 4
A kind of thin section steel structure anti-flaming dope, according to parts by weight, including following components：
40 parts of acrylic emulsion, 26 parts of pure-acrylic emulsion, 4 parts of ammonium hydrogen carbonate, 8 parts of starch, 8 parts of the fire retardant of embodiment 1, six
12 parts of 0.4 part of sodium metaphosphate wetting agent, 0.3 part of Siloxane-Oxyalkylene Copolymers polymer and talcum powder, 12 parts of aluminosilicate fiber.
Embodiment 5
A kind of thin section steel structure anti-flaming dope, according to parts by weight, including following components：
60 parts of acrylic emulsion, 20 parts of pure-acrylic emulsion, 8 parts of ammonium hydrogen carbonate, 6 parts of starch, embodiment 2 16 parts of fire retardant,
9 parts of 0.5 part of calgon wetting agent, 0.6 part of Siloxane-Oxyalkylene Copolymers polymer and talcum powder, 9 parts of aluminosilicate fiber.
Embodiment 6
A kind of thin section steel structure anti-flaming dope, according to parts by weight, including following components：
45 parts of acrylic emulsion, 40 parts of pure-acrylic emulsion, 5 parts of ammonium hydrogen carbonate, 10 parts of starch, embodiment 2 14 parts of fire retardant,
10 parts of 0.8 part of calgon wetting agent, 0.6 part of fluorine richness polyacrylate copolymer and titanium dioxide, 9 parts of montmorillonite.
Test example
The obtained thin section steel structures of embodiment 3-6 are tested for the property with anti-flaming dope, the results are shown in Table 1：
The performance test results of the thin section steel structure anti-flaming dope of 1 present invention of table
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of thin section steel structure anti-flaming dope, which is characterized in that according to parts by weight, including following components：
40~60 parts of acrylic emulsion, 20~40 parts of pure-acrylic emulsion, 4~8 parts of ammonium hydrogen carbonate, 5~10 parts of starch, fire retardant 8~
18~24 parts of 16 parts, 0.4~0.8 part of wetting dispersing agent, 0.3~0.6 part of levelling agent and filler；Wherein, the fire retardant is main
It is prepared by graphene oxide, more carbon nanotubes and Shiff base derivative of carboxymerhyl chitosan.
2. thin section steel structure anti-flaming dope according to claim 1, which is characterized in that the preparation method of the fire retardant
Include the following steps：
1) citric acid solution added graphene oxide into 5~10wt% carries out 6~10h of immersion treatment, and sour place is obtained by filtration
The graphene oxide of reason；
2) more carbon nanotubes are added in the mixed acid solution of the dust technology of 10~20wt% and the dilute sulfuric acid of 10~20wt%,
Then the graphene oxide for adding the acid processing of step 1) carries out ultrasonic disperse, and filtration washing is neutrality, drying up to filtrate
The mixture of pretreated graphene oxide and more carbon nanotubes is obtained afterwards；
3) by the pretreated mixture of step 2) be added in 4~8wt% Shiff base derivative of carboxymerhyl chitosan solution into
Row ultrasonic disperse is warming up to 40 DEG C~60 DEG C reactions, carries out ultrasonic disperse, filtration drying after reaction.
3. thin section steel structure anti-flaming dope according to claim 2, which is characterized in that graphene oxide, more carbon nanometers
Than being 7~11 between pipe and the quality of Shiff base derivative of carboxymerhyl chitosan:4~6:10~13.
4. thin section steel structure anti-flaming dope according to claim 1, which is characterized in that the wetting dispersing agent is six inclined
Sodium phosphate wetting agent；The levelling agent selects water-borne acrylate copolymer, fluorine richness polyacrylate copolymer or polyethers to change
Property polysiloxane polymer is one such.
5. thin section steel structure anti-flaming dope according to claim 1, which is characterized in that the filler be selected from titanium dioxide,
One or more of montmorillonite, talcum powder, aluminosilicate fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810533477.4A CN108587357A (en) | 2018-05-29 | 2018-05-29 | Thin section steel structure anti-flaming dope |
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| CN201810533477.4A CN108587357A (en) | 2018-05-29 | 2018-05-29 | Thin section steel structure anti-flaming dope |
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| CN108587357A true CN108587357A (en) | 2018-09-28 |
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| CN201810533477.4A Pending CN108587357A (en) | 2018-05-29 | 2018-05-29 | Thin section steel structure anti-flaming dope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116218308A (en) * | 2023-05-06 | 2023-06-06 | 潍坊亚贝涂料有限公司 | Anti-cracking flame-retardant coating for wood surface and preparation process thereof |
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Application publication date: 20180928 |