CN108165102A - Graphene modified aqueous paint and preparation method thereof - Google Patents
Graphene modified aqueous paint and preparation method thereof Download PDFInfo
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- CN108165102A CN108165102A CN201711280579.1A CN201711280579A CN108165102A CN 108165102 A CN108165102 A CN 108165102A CN 201711280579 A CN201711280579 A CN 201711280579A CN 108165102 A CN108165102 A CN 108165102A
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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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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Abstract
The present invention relates to a kind of water paints and preparation method thereof, it is made of water paint and ammonium polyphosphate organobentonite/graphene composite nano material, contain ammonium polyphosphate organobentonite/graphene composite nano material of 38 parts by weight in every 100 parts by weight water paint, the preparation method of the ammonium polyphosphate organobentonite/graphene composite nano material is as follows：The phosphoric acid of mass fraction 70 85% is poured into reactor, heating stirring, temperature adds in urea when being raised to 75 80 DEG C, when temperature is raised to 110 120 DEG C, it is synchronous to add in organobentonite and nanoscale graphite alkene, when 130~135 DEG C are continuously heating to after charging, it is stirred to react 10 30min, then by product at 180 200 DEG C 1 2h of high-temperature process, be cooled to room temperature after nanometer pulverization to obtain ammonium polyphosphate organobentonite/graphene composite nano material.The present invention water paint high degree of dispersion, will not reunite, water paint film forming homogeneity be extremely improved, adhesive force is extremely strong, will not bulge, more will not cracking or peel off.
Description
Technical field
The present invention relates to a kind of water paint and preparation method thereof, more particularly to a kind of graphene modified aqueous paint
And preparation method thereof, belong to functional coating processing technique field.
Background technology
China is the major consumers big country of timber and woodwork in the world, but be per capita forest (timber) resource most
One of few country.In face of the present situation that wildwood timber resources is in short supply and woodwork industry is fast-developing, it is necessary to follow material
Sustainability and green manufacturing principle under, expand the high-quality woodwork selection approach of low-carbon, and utilization of fast-growing forest timber
Timber resources anxiety situation can effectively be alleviated.At present, the most effective method of modifying of fast growing wood is exactly top finishing modification and dipping
It is modified.
Top finishing material has NC coating, UV coating and water paint etc..Traditional NC coating, UV coating are mainly with solvent
Based on type, this kind of paint waste petroleum resources can release a large amount of volatile organic compounds in the production and use process
(VOC), all it is a kind of harm to human health and natural environment.Water paint is that the organic polymer using water as decentralized medium applies
Material, in coating process, moisture gradually volatilizees, and forms organic polymer coating.Due to the particularity of wood substrate, water paint
Application on its surface is faced with technical barriers more more than solvent based coating, for example film formation time is long, quick to ambient temperature and humidity
Sense, paint film poor water resistance, adhesive force is low and easy cracking etc., these problems limit water-borne wood coating to a certain extent
Development and use.In view of the foregoing drawbacks, lot of domestic and international Research Team and enterprise have carried out numerous studies, and utilization is inorganic modified
Agent, silane coupling agent, metal powder etc. carry out consummating function modification to water paint performance, achieve significant progress, but also
It is the high demand that cannot meet client.
Graphene is used it in the prior art due to its very good intensity, flexible, conductive, heat conduction, optical characteristics
The modification of water paint using the characteristic of graphene high intensity, improves water paint mechanical property；In addition, by with chemistry
The biomass sources multilayer chip graphene nano material of modification improves the performances such as the poor water resistance of water paint in water paint,
But there are still following deficiencies for the graphene modified aqueous paint of the prior art：Dispersion problem of the graphene in water paint
Fail thoroughly to solve, film forming homogeneity is poor after leading to water paint spraying, poor adhesive force, easy bulge, cracking or peeling, system
About its use scope and quality.Present invention seek to address that this technical problem.
Invention content
It is an object of the present invention to solve dispersion problem of the graphene of the prior art in water paint to fail
It thoroughly solves, film forming homogeneity is poor after leading to water paint spraying, and poor adhesive force, easy bulge, cracking or peeling constrain
The deficiency of its use scope and quality, provides a kind of graphene modified aqueous paint, and the graphene in the water paint is by changing
Property, hydrophily and dispersion performance significantly improve, and forming a film after the water paint spraying being used to prepare, homogeneity is good, and adhesive force is extremely strong,
Will not bulge, more will not cracking or peel off.
The second object of the present invention is to provide a kind of preparation method of graphene modified aqueous paint.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of graphene modified aqueous paint, the graphene modified aqueous paint is by water paint and ammonium polyphosphate-have
Machine bentonite/graphene composite nano material composition, the ammonium polyphosphate of the parts by weight containing 3-8 in every 100 parts by weight water paint-have
Machine bentonite/graphene composite nano material, the preparation of the ammonium polyphosphate-organobentonite/graphene composite nano material
Method is as follows：
The phosphoric acid of mass fraction 70-85% is poured into reactor, heating stirring, temperature adds in urine when being raised to 75-80 DEG C
Element, it is synchronous to add in organobentonite and nanoscale graphite alkene when temperature is raised to 110-120 DEG C, continue to heat up after charging
During to 130~135 DEG C, be stirred to react 10-30min, then by product at 180-200 DEG C high-temperature process 1-2h, be cooled to room
Temperature obtains ammonium polyphosphate-organobentonite/graphene composite nano material after nanometer pulverization.
Ammonium polyphosphate is non-toxic and tasteless, does not generate etchant gas, and hygroscopicity is small, and thermal stability is high, has more hydrophilic radical,
Excellent flame retardancy；Organobentonite has good thixotropy, suspension stability, water resistance and chemical stability；Graphene
With very good intensity, flexible, conductive, heat conduction, optical characteristics.
Technical scheme of the present invention is using phosphoric acid, urea and organobentonite as raw material, using nanoscale graphite alkene as carrier, leads to
Ammonium polyphosphate-organobentonite/nano-graphene composite material of in-situ polymerization preparation is crossed, ammonium polyphosphate can be given full play to, had
Synergistic effect between machine bentonite and graphene, composite nano materials are provided with good hydrophily, dispersibility, also retain
The intrinsic performance of graphene.
Compared with the nano-graphene of the prior art, the nano-graphene of high-specific surface area loads poly- phosphorus by chemical method
After sour ammonium and organobentonite, hydrophily and dispersibility can improve 20 times or more.
Preferably, the phosphoric acid: urea: organobentonite: the mass ratio that feeds intake of nanoscale graphite alkene is：1: (0.85~
0.95): (0.1~0.2): (0.5-0.75).
Preferably, the pH of the water paint is 7.8-8.2, and parts by weight composition is as follows：
90-110 parts of distilled water, 22-24 parts of propyl alcohol, 44-48 parts of styrene-acrylic emulsion, 4-6 parts of coalescents, 6-10 parts of filler,
1-2 parts of antifoaming agent, 0.25-0.75 parts of water-insoluble glucan.
Preferably, the graphene modified aqueous paint is multiple by water paint and ammonium polyphosphate-organobentonite/graphene
Nano material composition is closed, ammonium polyphosphate-organobentonite/graphene containing 5 parts by weight is compound in every 100 parts by weight water paint
Nano material, the pH of the water paint is 8.0, and parts by weight composition is as follows：
100 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 5 parts of coalescents, 8 parts of filler, 1.5 parts of antifoaming agent, water
0.5 part of insoluble glucan.Water-insoluble glucan plays stabilizer as big biomolecule in alkaline aqueous coating system
Effect, water paint stay in grade is and organic after adding in ammonium polyphosphate-organobentonite/nano-graphene composite material
It is crosslinked between bentonitic active site, further stablizes graphene modified aqueous paint system.
Preferably, the coalescents are alcohol ester-12, and the filler is talcum powder, and the antifoaming agent is butanol.
A kind of preparation method of graphene modified aqueous paint, it is characterised in that：The preparation method is as follows：
1) phosphoric acid of mass fraction 70-85% is poured into reactor, heating stirring, temperature adds in when being raised to 75-80 DEG C
Urea, it is synchronous to add in organobentonite and nanoscale graphite alkene when temperature is raised to 110-120 DEG C, after of continuing rising after charging
When temperature is to 130~135 DEG C, be stirred to react 10-30min, then by product at 180-200 DEG C high-temperature process 1-2h, be cooled to
Room temperature obtains ammonium polyphosphate-organobentonite/graphene composite nano material after nanometer pulverization；
2) by the water paint of formula ratio, 40-50 DEG C is warming up to, stirs 20-30min in advance, then adds in the poly- of formula ratio
Ammonium phosphate-organobentonite/graphene composite nano material to be not less than the rotating speed of 1000rpm stirring more than 30min, obtains
Graphene modified aqueous paint semi-finished product；
3) the assisted and strengthened processing 10- of graphene modified aqueous paint semi-finished product ultrasonic wave after step 2) stir process
20min obtains graphene modified aqueous paint finished product.Using the void effect of ultrasonic wave, water paint semi-finished product are fully removed
In air, while by whipping process it is that may be present part reunite further destroy, it is allowed more fully to mix dispersion, really
Protect the homogeneity of graphene modified aqueous paint.
Preferably, the phosphoric acid: urea: organobentonite: the mass ratio that feeds intake of nanoscale graphite alkene is：1: (0.85~
0.95): (0.1~0.2): (0.5-0.75).
Preferably, the pH of the water paint is 7.8-8.2, and parts by weight composition is as follows：
90-110 parts of distilled water, 22-24 parts of propyl alcohol, 44-48 parts of styrene-acrylic emulsion, 4-6 parts of coalescents, 6-10 parts of filler,
1-2 parts of antifoaming agent, 0.25-0.75 parts of water-insoluble glucan.
Preferably, ammonium polyphosphate-organobentonite/graphene that 5 parts by weight are added in every 100 parts by weight water paint is multiple
Nano material is closed, the pH of the water paint is 8.0, and parts by weight composition is as follows：
100 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 5 parts of coalescents, 8 parts of filler, 1.5 parts of antifoaming agent, water
0.5 part of insoluble glucan.
Preferably, the coalescents are alcohol ester-12, and the filler is talcum powder, and the antifoaming agent is butanol.
The beneficial effects of the invention are as follows：Three kinds of raw materials are passed through home position polymerization reaction by present inventor's creativeness
Method is modified nano-graphene, and it is compound to prepare ammonium polyphosphate-organobentonite/graphene with complex function
Nano material, the complex function of the composite nano materials are embodied at least two aspects：Hydrophily significantly improves, and substantially increases
The mixed effect of graphene and water paint；Dispersibility greatly improves, ammonium polyphosphate-organobentonite/graphene composite Nano
Material high degree of dispersion in water paint will not reunite, and water paint film forming homogeneity is extremely improved, and adhesive force is extremely strong, no
Meeting bulge, more will not cracking or peels off.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1：
A kind of graphene modified aqueous paint, the graphene modified aqueous paint is by water paint and ammonium polyphosphate-have
Machine bentonite/graphene composite nano material composition, the ammonium polyphosphate containing 3 parts by weight in every 100 parts by weight water paint-organic
Bentonite/graphene composite nano material, the preparation side of the ammonium polyphosphate-organobentonite/graphene composite nano material
Method is as follows：
The phosphoric acid of mass fraction 70% is poured into reactor, heating stirring, temperature adds in urea when being raised to 75 DEG C, works as temperature
It is synchronous to add in organobentonite and nanoscale graphite alkene when degree is raised to 110 DEG C, when 130 DEG C are continuously heating to after charging, stir
Mix reaction 10min, then by product at 180 DEG C high-temperature process 2h, be cooled to room temperature after nanometer pulverization to obtain ammonium polyphosphate-have
Machine bentonite/graphene composite nano material；
The phosphoric acid: urea: organobentonite: the mass ratio that feeds intake of nanoscale graphite alkene is：1∶0.85∶0.1∶05.
The pH of the water paint is 7.8, and parts by weight composition is as follows：
90 parts of distilled water, 22 parts of propyl alcohol, 44 parts of styrene-acrylic emulsion, 4 parts of coalescents, 6 parts of filler, 1 part of antifoaming agent, water is insoluble
0.25 part of glucan of property.
The coalescents are alcohol ester-12, and the filler is talcum powder, and the antifoaming agent is butanol.
The preparation method of graphene modified aqueous paint is as follows：
1) by the water paint of formula ratio, 40 DEG C are warming up to, stirs 30min in advance, then add in formula ratio ammonium polyphosphate-
Organobentonite/graphene composite nano material to be not less than the rotating speed of 1000rpm stirring more than 30min, obtains graphene and changes
Property water paint semi-finished product；
2) the assisted and strengthened processing 10- of graphene modified aqueous paint semi-finished product ultrasonic wave after step 1) stir process
20min obtains graphene modified aqueous paint finished product.
Embodiment 2：
A kind of graphene modified aqueous paint, the graphene modified aqueous paint is by water paint and ammonium polyphosphate-have
Machine bentonite/graphene composite nano material composition, the ammonium polyphosphate containing 8 parts by weight in every 100 parts by weight water paint-organic
Bentonite/graphene composite nano material, the preparation side of the ammonium polyphosphate-organobentonite/graphene composite nano material
Method is as follows：
The phosphoric acid of mass fraction 85% is poured into reactor, heating stirring, temperature adds in urea when being raised to 80 DEG C, works as temperature
It is synchronous to add in organobentonite and nanoscale graphite alkene when degree is raised to 120 DEG C, when 135 DEG C are continuously heating to after charging, stir
Mix reaction 30min, then by product at 200 DEG C high-temperature process 1h, be cooled to room temperature after nanometer pulverization to obtain ammonium polyphosphate-have
Machine bentonite/graphene composite nano material；
The phosphoric acid: urea: organobentonite: the mass ratio that feeds intake of nanoscale graphite alkene is：1∶0.95∶0.2∶0.75.
The pH of the water paint is 8.2, and parts by weight composition is as follows：
Ll0 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 6 parts of coalescents, 10 parts of filler, 2 parts of antifoaming agent, water is not
0.75 part of soluble glucans.
The coalescents are alcohol ester-12, and the filler is talcum powder, and the antifoaming agent is butanol.
The preparation method of graphene modified aqueous paint is as follows：
1) by the water paint of formula ratio, 50 DEG C are warming up to, stirs 20min in advance, then add in formula ratio ammonium polyphosphate-
Organobentonite/graphene composite nano material stirs more than 35min with the rotating speed of 2000rpm, obtains graphene modified water-soluble
Coating semi-finished product；
2) the graphene assisted and strengthened processing 20min of modified aqueous paint semi-finished product ultrasonic wave after step 1) stir process,
Obtain graphene modified aqueous paint finished product.
Embodiment 3
A kind of graphene modified aqueous paint, the graphene modified aqueous paint is by water paint and ammonium polyphosphate-have
Machine bentonite/graphene composite nano material composition, the ammonium polyphosphate containing 5 parts by weight in every 100 parts by weight water paint-organic
Bentonite/graphene composite nano material, the preparation side of the ammonium polyphosphate-organobentonite/graphene composite nano material
Method is as follows：
The phosphoric acid of mass fraction 80% is poured into reactor, heating stirring, temperature adds in urea when being raised to 80 DEG C, works as temperature
It is synchronous to add in organobentonite and nanoscale graphite alkene when degree is raised to 115 DEG C, when 132 DEG C are continuously heating to after charging, stir
Mix reaction 20min, then by product at 190 DEG C high-temperature process 1.5h, be cooled to room temperature after nanometer pulverization ammonium polyphosphate-
Organobentonite/graphene composite nano material；
The phosphoric acid: urea: organobentonite: the mass ratio that feeds intake of nanoscale graphite alkene is：1∶0.9∶0.15∶0.6.
Preferably, the pH of the water paint is 8.0, and parts by weight composition is as follows：
100 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 5 parts of coalescents, 8 parts of filler, 1.5 parts of antifoaming agent, water
0.5 part of insoluble glucan.
The coalescents are alcohol ester-12, and the filler is talcum powder, and the antifoaming agent is butanol.
The preparation method of graphene modified aqueous paint is as follows：
1) by the water paint of formula ratio, 45 DEG C are warming up to, stirs 25min in advance, then add in formula ratio ammonium polyphosphate-
Organobentonite/graphene composite nano material stirs 42min with the rotating speed of 3000rpm, obtains graphene modified aqueous paint
Semi-finished product；
2) the graphene assisted and strengthened processing 15min of modified aqueous paint semi-finished product ultrasonic wave after step 1) stir process,
Obtain graphene modified aqueous paint finished product.
The dispersibility evaluation for ammonium polyphosphate-organobentonite/graphene composite nano material that embodiment 1-3 is prepared
1 sedimentation experiment method：Ammonium polyphosphate-organobentonite/graphene composite nano material that embodiment 1-3 is prepared
Add in deionized water, per 100ml deionized waters in be separately added into 3g, 5g, 8g, 10g and 12g detected materials sample, with
The rotating speed stirring 30min of 1000rpm, then the assisted and strengthened 20min of ultrasonic wave, forms uniform dispersion, is subsequently poured into tool
In graduated test tube, whether observation dispersion is layered and upper strata is changed with time, and observation stands 12h and has afterwards for 24 hours
Volume data is as follows：
By upper table test data it is found that ammonium polyphosphate-organobentonite/graphenes for being prepared of embodiment 1-3 are compound
Nano material, which adds in, has good dispersibility in deionized water, continuous to stand 24 hours or more after being sufficiently mixed uniformly, sedimentation
Unobvious are layered, when 100ml additive amounts reach 10-12g, there are slight layering, but unobvious lamination.
In addition, with laser particle size analyzer measure suspension in particle size distribution, the average grain diameter measured with
The primary particle size that TEM photos are directly observed is suitable, is also demonstrated that ammonium polyphosphate-organic swelling that embodiment 1-3 is prepared
Soil/graphene composite nano material, which adds in, has good dispersibility in deionized water.
2. sedimentation experiment method：The dispersibility evaluation for the graphene modified aqueous paint that embodiment 1-3 is prepared.
Each 100ml of graphene modified aqueous paint of Example 1-3 respectively is added in the graduated test tube of tool, sees
Examine whether dispersion is layered and upper strata is changed with time, observation stands 12h and specific data rear for 24 hours are as follows：
1.3 embodiment 1-3 graphene modified aqueous paint performance tests.
After the graphene modified aqueous paint that embodiment 1-3 is prepared is stood for 24 hours, sampled according to national standard GB3186, and
Standard film is prepared by national standard GB1727, its property indices is tested.Bin stability presses GB 6753.3-86 sides
Method is tested, and appearance of film is observed by GB/T9755-200l, and film, which covers, to be puted forth effort to test by GB1720-79 methods.
Test result is as follows for the bin stability of embodiment 1-3 graphene modified aqueous paints：
| Embodiment | Skinning, peculiar smell | Particle, blob of viscose | Sinking speed | Viscosity change |
| Embodiment 1 | Nothing | Nothing | Without sedimentation | Slightly, less than 5% |
| Embodiment 2 | Nothing | Nothing | Without sedimentation | Slightly, less than 8% |
| Embodiment 3 | Nothing | Nothing | Without sedimentation | Slightly, less than 2% |
From experimental result as can be seen that the bin stability of embodiment 1-3 graphene modified aqueous paints is fine.Modified
The addition of graphene composite nano material undoubtedly plays a crucial role, nano material can very well with it is other in coating
Component forms crosslinking, effectively prevents the precipitation or layering of filler and other free settling substances in coating.
The performance test data of embodiment 1-3 graphene modified aqueous paints is as follows：
The overall performance that test result can be seen that the coating of embodiment 1-3 is better than common water paint.Coating is dried
Time is greatly lowered, and bin stability existing for former water paint is poor, stain resistance, water resistance, the homogeneity that forms a film and
The problems such as adhesive force is not high is also well solved.
Embodiment described above is a kind of preferable scheme of the present invention, and not the present invention is made in any form
Limitation also has other variants and remodeling under the premise of without departing from the technical solution recorded in claim.
Claims (10)
1. a kind of graphene modified aqueous paint, it is characterised in that：The graphene modified aqueous paint is by water paint and gathers
Ammonium phosphate-organobentonite/graphene composite nano material forms, and the parts by weight containing 3-8 is poly- in every 100 parts by weight water paint
Ammonium phosphate-organobentonite/graphene composite nano material, the ammonium polyphosphate-organobentonite/graphene composite Nano material
The preparation method of material is as follows：
The phosphoric acid of mass fraction 70-85% to be poured into reactor, heating stirring, temperature adds in urea when being raised to 75-80 DEG C, when
It is synchronous to add in organobentonite and nanoscale graphite alkene when temperature is raised to 110-120 DEG C, it is continuously heating to 130 after charging
At~135 DEG C, be stirred to react 10-30min, then by product at 180-200 DEG C high-temperature process 1-2h, be cooled to room temperature through receiving
Ammonium polyphosphate-organobentonite/graphene composite nano material is obtained after rice flour is broken.
2. graphene modified aqueous paint according to claim 1, it is characterised in that：The phosphoric acid: urea: organic swelling
It is native: the mass ratio that feeds intake of nanoscale graphite alkene is：1: (0.85~0.95): (0.1~0.2): (0.5-0.75).
3. graphene modified aqueous paint according to claim 1, it is characterised in that：The pH of the water paint is 7.8-
8.2, parts by weight composition is as follows：
90-110 parts of distilled water, 22-24 parts of propyl alcohol, 44-48 parts of styrene-acrylic emulsion, 4-6 parts of coalescents, 6-10 parts of filler, defoaming
1-2 parts of agent, 0.25-0.75 parts of water-insoluble glucan.
4. graphene modified aqueous paint according to claim 3, it is characterised in that：In every 100 parts by weight water paint
Ammonium polyphosphate-organobentonite/graphene composite nano material containing 5 parts by weight, the pH of the water paint is 8.0, heavy
It is as follows to measure part composition：
100 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 5 parts of coalescents, 8 parts of filler, 1.5 parts of antifoaming agent, water is insoluble
0.5 part of glucan of property.
5. graphene modified aqueous paint according to claim 3 or 4, it is characterised in that：The coalescents for alcohol ester-
12, the filler is talcum powder, and the antifoaming agent is butanol.
6. a kind of preparation method of graphene modified aqueous paint described in claim 1, it is characterised in that：The preparation method
It is as follows：
1) phosphoric acid of mass fraction 70-85% to be poured into reactor, heating stirring, temperature adds in urea when being raised to 75-80 DEG C,
It is synchronous to add in organobentonite and nanoscale graphite alkene when temperature is raised to 110-120 DEG C, it is continuously heating to after charging
At 130~135 DEG C, be stirred to react 10-30min, then by product at 180-200 DEG C high-temperature process 1-2h, be cooled to room temperature
Ammonium polyphosphate-organobentonite/graphene composite nano material is obtained after nanometer pulverization；
2) by the water paint of formula ratio, 40-50 DEG C is warming up to, stirs 20-30min in advance, then adds in the polyphosphoric acid of formula ratio
Ammonium-organobentonite/graphene composite nano material to be not less than the rotating speed of 1000rpm stirring more than 30min, obtains graphite
Alkene modified aqueous paint semi-finished product；
3) the graphene assisted and strengthened processing 10-20min of modified aqueous paint semi-finished product ultrasonic wave after step 2) stir process, is obtained
Obtain graphene modified aqueous paint finished product.
7. graphene modified aqueous paint according to claim 6, it is characterised in that：The phosphoric acid: urea: organic swelling
It is native: the mass ratio that feeds intake of nanoscale graphite alkene is：1: (0.85~0.95): (0.1~0.2): (0.5-0.75).
8. graphene modified aqueous paint according to claim 6, it is characterised in that：The pH of the water paint is 7.8-
8.2, parts by weight composition is as follows：
90-110 parts of distilled water, 22-24 parts of propyl alcohol, 44-48 parts of styrene-acrylic emulsion, 4-6 parts of coalescents, 6-10 parts of filler, defoaming
1-2 parts of agent, 0.25-0.75 parts of water-insoluble glucan.
9. graphene modified aqueous paint according to claim 8, it is characterised in that：In every 100 parts by weight water paint
Ammonium polyphosphate-organobentonite/graphene composite nano material of 5 parts by weight is added, the pH of the water paint is 8.0,
Parts by weight composition is as follows：
100 parts of distilled water, 24 parts of propyl alcohol, 48 parts of styrene-acrylic emulsion, 5 parts of coalescents, 8 parts of filler, 1.5 parts of antifoaming agent, water is insoluble
0.5 part of glucan of property.
10. graphene modified aqueous paint according to claim 8 or claim 9, it is characterised in that：The coalescents are alcohol
Ester -12, the filler are talcum powder, and the antifoaming agent is butanol.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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