CN109535856A - A kind of sol-gel modified graphene heat radiation coating and preparation method thereof - Google Patents
A kind of sol-gel modified graphene heat radiation coating and preparation method thereof Download PDFInfo
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- CN109535856A CN109535856A CN201811526696.6A CN201811526696A CN109535856A CN 109535856 A CN109535856 A CN 109535856A CN 201811526696 A CN201811526696 A CN 201811526696A CN 109535856 A CN109535856 A CN 109535856A
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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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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Abstract
The invention discloses a kind of sol-gel modified graphene heat radiation coatings, it is composed of the following raw materials by weight: ricinoleic acid 3-5, high density poly propylene 110-140, sol-gel modified graphene emulsion 30-40, Sucrose acetoisobutyrate 0.8-1,2-mercaptobenzimidazole 1-2, coating of the invention has good thermal diffusivity, mechanical stability is good, and comprehensive performance is superior.
Description
Technical field
The invention belongs to paint fields, and in particular to a kind of sol-gel modified graphene heat radiation coating and preparation method thereof.
Background technique
Heat-dissipation paint be widely used in computer, laptop, LED illumination, communication, rectifier, medical treatment and
Industrial equipment etc. has the field of cooling requirements, the main surface for being coated in radiator.
The heat radiation coating produced at present is generally applied to heat dissipation and the LED lamps and lanterns of the components of electronic products such as CPU more
Heat dissipation, higher for the medium requirements of brushing, not strong for rougher, loose body surface adhesive force, using effect is paid no attention to
Think, smaller scope of application;And the meeting introducing portion inorganic filler in heat radiation coating at present, it is easy to cause the equal of finished product film in this way
Even stability is poor.
Summary of the invention
The object of the present invention is to provide a kind of sol-gel modified graphene heat radiation coatings and preparation method thereof.
To achieve the above object, the invention adopts the following technical scheme:
A kind of sol-gel modified graphene heat radiation coating, it is composed of the following raw materials by weight:
Ricinoleic acid 3-5, high density poly propylene 110-140, sol-gel modified graphene emulsion 30-40, Sucrose acetoisobutyrate
0.8-1,2-mercaptobenzimidazole 1-2.
What the sol-gel modified graphene emulsion was made of the raw material of following weight parts:
Triethanolamine 4-7, neopelex 1-2, succinic acid 5-8, ethylene glycol 4-6, graphene oxide 10-13, methyl
Methyl acrylate 50-60, ammonium persulfate 1-2, butyl titanate 30-40.
The preparation method of the sol-gel modified graphene emulsion, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 20-30 times of its weight, stirs evenly;
(2) succinic acid, ethylene glycol mixing are taken, increasing temperature is 90-95 DEG C, addition graphene oxide, insulated and stirred 1-2 hours,
It is mixed with methyl methacrylate, stirring to room temperature is sent in reaction kettle, is passed through nitrogen, and adjusting temperature of reaction kettle is 65-70
DEG C, insulated and stirred 3-5 hours, discharging cooling obtained polyester emulsion;
(3) triethanolamine, butyl titanate mixing are taken, is added in the dehydrated alcohol of 3-5 times of mixture weight, stirs evenly,
Obtain alkanolamine solution;
(4) neopelex is taken, is added in the deionized water of 20-30 times of its weight, with above-mentioned polyester emulsion, hydramine
Solution mixing, is stirred to react 4-6 hours to get the sol-gel modified graphene emulsion.
A kind of preparation method of sol-gel modified graphene heat radiation coating, comprising the following steps:
(1) 2-mercaptobenzimidazole is taken, is added in the dehydrated alcohol of 10-17 times of its weight, stirs evenly, Sucrose Acetate is added
Sour sucrose ester, stirs evenly, and obtains alcohol dispersion liquid;
(2) above-mentioned alcohol dispersion liquid is taken, mixes, stirs evenly with sol-gel modified graphene emulsion, ricinoleic acid is added, increases temperature
It is 70-75 DEG C, insulated and stirred 1-2 hours, filters, filter cake is washed, air drying obtains modified graphene;
(3) above-mentioned modified graphene is taken, is mixed with high density poly propylene, is stirred evenly, is sent in extruder, melting extrusion,
Cooling, milling is sieved to get the sol-gel modified graphene heat radiation coating.
Advantages of the present invention:
First esterification is blended in succinic acid, ethylene glycol by the present invention, then is blended with methyl methacrylate monomer, graphene oxide,
It polymerize under initiator effect, obtains the polyester emulsion of graphene doping, then mixed with triethanolamine, butyl titanate is added
The graphene sol solution containing micropore is obtained by hydrolysis, later using neopelex as pore-foaming agent for presoma
Itself and high density are improved to further improve the surface-active of graphene complex sol with ricinoleic acid blending reaction
Compatibility between polypropylene matrix, coating of the invention have good thermal diffusivity, and be added colloidal sol can be improved film with
The adhesion strength of substrate, mechanical stability is good, and comprehensive performance is superior.
Specific embodiment
Embodiment 1
A kind of sol-gel modified graphene heat radiation coating, it is composed of the following raw materials by weight:
Ricinoleic acid 3, high density poly propylene 110, sol-gel modified graphene emulsion 30, Sucrose acetoisobutyrate 0.8,2- sulfydryl
Benzimidazole 1.
What the sol-gel modified graphene emulsion was made of the raw material of following weight parts:
Triethanolamine 4, neopelex 2, succinic acid 5, ethylene glycol 4, graphene oxide 10, methyl methacrylate
50, ammonium persulfate 1, butyl titanate 30.
The preparation method of the sol-gel modified graphene emulsion, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 20 times of its weight, stirs evenly;
(2) succinic acid, ethylene glycol mixing are taken, increasing temperature is 90 DEG C, addition graphene oxide, insulated and stirred 1 hour, with methyl
Methyl acrylate mixing, stirring to room temperature are sent in reaction kettle, are passed through nitrogen, and adjusting temperature of reaction kettle is 65 DEG C, and heat preservation is stirred
It mixes 3 hours, discharging cooling obtains polyester emulsion;
(3) triethanolamine, butyl titanate mixing are taken, is added in 3 times of mixture weight of dehydrated alcohol, is stirred evenly, obtain
Alkanolamine solution;
(4) neopelex is taken, is added in the deionized water of 20 times of its weight, it is molten with above-mentioned polyester emulsion, hydramine
Liquid mixing, is stirred to react 4 hours to get the sol-gel modified graphene emulsion.
A kind of preparation method of sol-gel modified graphene heat radiation coating, comprising the following steps:
(1) 2-mercaptobenzimidazole is taken, is added in the dehydrated alcohol of 10 times of its weight, stirs evenly, Sucrose Acetate acid is added
Sucrose ester stirs evenly, and obtains alcohol dispersion liquid;
(2) above-mentioned alcohol dispersion liquid is taken, mixes, stirs evenly with sol-gel modified graphene emulsion, ricinoleic acid is added, increases temperature
It is 70 DEG C, insulated and stirred 1 hour, filters, filter cake is washed, air drying obtains modified graphene;
(3) above-mentioned modified graphene is taken, is mixed with high density poly propylene, is stirred evenly, is sent in extruder, melting extrusion,
Cooling, milling is sieved to get the sol-gel modified graphene heat radiation coating.
Embodiment 2
A kind of sol-gel modified graphene heat radiation coating, it is composed of the following raw materials by weight:
Ricinoleic acid 5, high density poly propylene 140, sol-gel modified graphene emulsion 40, Sucrose acetoisobutyrate 1,2- sulfydryl benzene
And imidazoles 2.
What the sol-gel modified graphene emulsion was made of the raw material of following weight parts:
Triethanolamine 7, neopelex 2, succinic acid 8, ethylene glycol 6, graphene oxide 13, methyl methacrylate
60, ammonium persulfate 2, butyl titanate 40.
The preparation method of the sol-gel modified graphene emulsion, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 20-30 times of its weight, stirs evenly;
(2) succinic acid, ethylene glycol mixing are taken, increasing temperature is 95 DEG C, addition graphene oxide, insulated and stirred 2 hours, with methyl
Methyl acrylate mixing, stirring to room temperature are sent in reaction kettle, are passed through nitrogen, and adjusting temperature of reaction kettle is 70 DEG C, and heat preservation is stirred
It mixes 5 hours, discharging cooling obtains polyester emulsion;
(3) triethanolamine, butyl titanate mixing are taken, is added in 5 times of mixture weight of dehydrated alcohol, is stirred evenly, obtain
Alkanolamine solution;
(4) neopelex is taken, is added in the deionized water of 30 times of its weight, it is molten with above-mentioned polyester emulsion, hydramine
Liquid mixing, is stirred to react 6 hours to get the sol-gel modified graphene emulsion.
A kind of preparation method of sol-gel modified graphene heat radiation coating, comprising the following steps:
(1) 2-mercaptobenzimidazole is taken, is added in the dehydrated alcohol of 17 times of its weight, stirs evenly, Sucrose Acetate acid is added
Sucrose ester stirs evenly, and obtains alcohol dispersion liquid;
(2) above-mentioned alcohol dispersion liquid is taken, mixes, stirs evenly with sol-gel modified graphene emulsion, ricinoleic acid is added, increases temperature
It is 75 DEG C, insulated and stirred 2 hours, filters, filter cake is washed, air drying obtains modified graphene;
(3) above-mentioned modified graphene is taken, is mixed with high density poly propylene, is stirred evenly, is sent in extruder, melting extrusion,
Cooling, milling is sieved to get the sol-gel modified graphene heat radiation coating.
Performance test:
The sol-gel modified graphene heat radiation coating of the embodiment of the present invention 1:
Impact strength is 43kg cm;
Adhesion 1 grade;
Thermal conductivity is 0.701W/mK;
The sol-gel modified graphene heat radiation coating of the embodiment of the present invention 2:
Impact strength is 41kg cm;
Adhesion 1 grade;
Thermal conductivity is 0.712W/mK.
Claims (4)
1. a kind of sol-gel modified graphene heat radiation coating, which is characterized in that it is composed of the following raw materials by weight:
Ricinoleic acid 3-5, high density poly propylene 110-140, sol-gel modified graphene emulsion 30-40, Sucrose acetoisobutyrate
0.8-1,2-mercaptobenzimidazole 1-2.
2. a kind of sol-gel modified graphene heat radiation coating according to claim 1, which is characterized in that the sol-gel modified stone
What black alkene lotion was made of the raw material of following weight parts:
Triethanolamine 4-7, neopelex 1-2, succinic acid 5-8, ethylene glycol 4-6, graphene oxide 10-13, methyl
Methyl acrylate 50-60, ammonium persulfate 1-2, butyl titanate 30-40.
3. a kind of sol-gel modified graphene heat radiation coating according to claim 2, which is characterized in that the sol-gel modified stone
The preparation method of black alkene lotion, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 20-30 times of its weight, stirs evenly;
(2) succinic acid, ethylene glycol mixing are taken, increasing temperature is 90-95 DEG C, addition graphene oxide, insulated and stirred 1-2 hours,
It is mixed with methyl methacrylate, stirring to room temperature is sent in reaction kettle, is passed through nitrogen, and adjusting temperature of reaction kettle is 65-70
DEG C, insulated and stirred 3-5 hours, discharging cooling obtained polyester emulsion;
(3) triethanolamine, butyl titanate mixing are taken, is added in the dehydrated alcohol of 3-5 times of mixture weight, stirs evenly,
Obtain alkanolamine solution;
(4) neopelex is taken, is added in the deionized water of 20-30 times of its weight, with above-mentioned polyester emulsion, hydramine
Solution mixing, is stirred to react 4-6 hours to get the sol-gel modified graphene emulsion.
4. a kind of preparation method of sol-gel modified graphene heat radiation coating as described in claim 1, which is characterized in that including following
Step:
(1) 2-mercaptobenzimidazole is taken, is added in the dehydrated alcohol of 10-17 times of its weight, stirs evenly, Sucrose Acetate is added
Sour sucrose ester, stirs evenly, and obtains alcohol dispersion liquid;
(2) above-mentioned alcohol dispersion liquid is taken, mixes, stirs evenly with sol-gel modified graphene emulsion, ricinoleic acid is added, increases temperature
It is 70-75 DEG C, insulated and stirred 1-2 hours, filters, filter cake is washed, air drying obtains modified graphene;
(3) above-mentioned modified graphene is taken, is mixed with high density poly propylene, is stirred evenly, is sent in extruder, melting extrusion,
Cooling, milling is sieved to get the sol-gel modified graphene heat radiation coating.
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CN201811526696.6A CN109535856A (en) | 2018-12-13 | 2018-12-13 | A kind of sol-gel modified graphene heat radiation coating and preparation method thereof |
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CN201811526696.6A CN109535856A (en) | 2018-12-13 | 2018-12-13 | A kind of sol-gel modified graphene heat radiation coating and preparation method thereof |
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Citations (4)
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CN105622832A (en) * | 2016-02-19 | 2016-06-01 | 成都新柯力化工科技有限公司 | Preparation method of graphene microspheres for paint |
CN107141930A (en) * | 2017-07-06 | 2017-09-08 | 赵阳 | A kind of aqueous antistripping acrylic resin paint and preparation method thereof |
CN108299966A (en) * | 2017-10-18 | 2018-07-20 | 温州市赢创新材料技术有限公司 | A kind of graphene heat radiation coating and preparation method thereof |
CN108753141A (en) * | 2018-06-25 | 2018-11-06 | 合肥艾飞新材料有限公司 | A kind of environment-friendly epoxy water paint and preparation method thereof |
-
2018
- 2018-12-13 CN CN201811526696.6A patent/CN109535856A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105622832A (en) * | 2016-02-19 | 2016-06-01 | 成都新柯力化工科技有限公司 | Preparation method of graphene microspheres for paint |
CN107141930A (en) * | 2017-07-06 | 2017-09-08 | 赵阳 | A kind of aqueous antistripping acrylic resin paint and preparation method thereof |
CN108299966A (en) * | 2017-10-18 | 2018-07-20 | 温州市赢创新材料技术有限公司 | A kind of graphene heat radiation coating and preparation method thereof |
CN108753141A (en) * | 2018-06-25 | 2018-11-06 | 合肥艾飞新材料有限公司 | A kind of environment-friendly epoxy water paint and preparation method thereof |
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Application publication date: 20190329 |
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