CN109135386A - A kind of reflection-type acroleic acid polyurethane energy-saving coatings - Google Patents
A kind of reflection-type acroleic acid polyurethane energy-saving coatings Download PDFInfo
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- CN109135386A CN109135386A CN201811071758.9A CN201811071758A CN109135386A CN 109135386 A CN109135386 A CN 109135386A CN 201811071758 A CN201811071758 A CN 201811071758A CN 109135386 A CN109135386 A CN 109135386A
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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
- C09D133/04—Homopolymers or copolymers of esters
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- 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
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- C09D7/60—Additives non-macromolecular
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K2003/2241—Titanium dioxide
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Abstract
The invention discloses a kind of reflection-type acroleic acid polyurethane energy-saving coatings, including following parts by weight raw material to be prepared: 40-60 parts of polyaminoester emulsion, 30-50 parts of low-polyacrylate lotion, filler 10-20 parts of reflection, 3-8 parts of modifying agent, 0.01-0.05 parts of graphene oxide, 2-5 parts of auxiliary agent；The energy-saving coatings carry out specific aim modification to reflection filler, keep compatibility between each raw material more preferable, simultaneously, the graphene oxide composite material of addition, reflecting interface can not only be increased on reflection filler, to increase the reflectivity of reflection filler, moreover it is possible to assign coating better mechanical property, to significantly improve the comprehensive performance of energy-saving coatings.
Description
Technical field
The present invention relates to energy-saving material fields, and in particular to a kind of reflection-type acroleic acid polyurethane energy-saving coatings.
Background technique
With the rapid development of social economy, energy-output ratio is growing day by day, and the existing energy is mostly non-renewable energy
Source, the problem of leading to energy shortages, will be increasingly severeer, therefore, greatly develop energy-saving material, to slow down energy consumption speed, come
Economic quick sustainable development is maintained to necessitate.The energy enormous amount consumed due to building energy loss, in recent years
Come, building energy conservation is increasingly paid attention to by people.Building coating carries out power saving function coating as a kind of important construction material
To economizing on resources, promote Sustainable Socioeconomic Development significant.Energy-saving coatings are divided into barrier by its energy-saving principle
Type, radial pattern, reflection-type, these three energy-saving coatings are because of insulating mechanism difference, and performance characteristics, application and energy-saving effect are not yet
It is identical.Typical case of the reflection-type energy-saving coatings as power saving function coating has excellent reflection cooling function, receives people in the industry
The common concern of scholar simultaneously obtains apparent development.Existing reflection-type energy-saving coatings are not conformed to due to composition of raw materials or preparation method
Reason leads to reflection filler in coating and the poor compatibility of film-forming components, reflects the defects such as filler reflectivity is low, seriously affects
The comprehensive performance of radial pattern energy-saving coatings limits the application of radial pattern coating.
Summary of the invention
It is an object of the invention to overcome mechanical property and reflection efficiency existing for existing acroleic acid polyurethane energy-saving coatings
The poor deficiency of efficiency provides a kind of reflection-type acroleic acid polyurethane energy-saving coatings；Energy-saving coatings of the present invention to reflection filler into
Row specific aim modification keeps compatibility between each raw material more preferable, meanwhile, the graphene oxide composite material of addition can not only be anti-
It penetrates and increases reflecting interface on filler, to increase the reflectivity of reflection filler, moreover it is possible to assign coating better mechanical property, thus
Significantly improve the comprehensive performance of energy-saving coatings.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of reflection-type acroleic acid polyurethane energy-saving coatings, including
Following parts by weight raw material are prepared: 40-60 parts of polyaminoester emulsion, 30-50 parts of low-polyacrylate lotion, reflecting filler
10-20 parts, 3-8 parts of modifying agent, 0.01-0.05 parts of graphene oxide, 2-5 parts of auxiliary agent.
Wherein, the reflection filler is one of rutile type titanium white, talcum powder, barium sulfate or a variety of；It is preferred that
, reflection filler be mixture that molar ratio is the rutile type titanium white of 5 ︰, 1 ︰ 2, talcum powder and barium sulfate；By excellent
Choosing, reflection filler are higher to the reflectivity of infrared ray.
Wherein, the modifying agent is the aminoacrylic acid and methallyl alcohol that molar ratio is 1 ︰ 2；It is described
Modifying agent can significantly improve the compatibility between graphene oxide, reflection filler and acroleic acid polyurethane, can improve the power of coating
Learn performance and reflection efficiency efficiency.
The graphene oxide is prepared by following preparation method, comprising the following steps:
(a) by graphite powder be added by the mass percent concentration that volume ratio is 4 ︰ 1 be 55% sulfuric acid solution and mass percent it is dense
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that degree is 45% mixes；
(b) the first suspension is placed in parallel electric field, potassium permanganate powder is added, heating stirring obtains the second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and concentration that addition concentration is 1.5mol/L are
1.0mol/L hydrochloric acid solution obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide.
Wherein, it is preferred that the mass volume ratio (g ︰ ml) of step (a) graphite powder and mixed acid solution is 4 ︰ 100；It is excellent
The ratio of choosing is appropriate to the oxidation of graphite, and the upper active group generated is less in obtained graphene oxide, has more preferable
Interface reflecting effect, it is more preferable with the bonding capability of modifying agent.
Wherein, in step (b) under the parallel electric field effect, polarization occurs for graphitic molecules, prolongs direction of an electric field
Graphite electronically active is stronger, it is easier to be oxidized, oxidizing condition milder, it is easier to control the number of active group on graphene
Amount；Preferably, the parallel electric field intensity is 3.5-6.5KV/m；Under preferred electric field strength, the degree of oxidation of graphite
It is easier to control.
Preferably, the mass ratio of the potassium permanganate powder and graphite powder is 1 ︰ 4；Preferred ratio makees the oxidation of graphite
With appropriate, the upper active group generated is less in obtained graphene oxide, has better interface reflecting effect, with modifying agent
Bonding capability it is more preferable.
Preferably, the heating temperature is 50-60 DEG C；Preferred thermotonus speed is moderate, and process is easier to control, the energy
Consume small, production cost is low.
Preferably, the volume ratio of the second suspension, hydrogenperoxide steam generator and hydrochloric acid solution is 50 ︰, 1 ︰ 5 in step (c)；?
Under preferred volume ratio, the graphene oxide purity being prepared is best.
Wherein, the auxiliary agent include coalescing agent, it is wetting dispersing agent, defoaming agent, levelling agent, amine drier, anti-settling
One or more of agent, anti-sag agent.
In order to achieve the above-mentioned object of the invention, further, the present invention provides a kind of reflection-type acroleic acid polyurethane energy conservations
The preparation method of coating, comprising the following steps:
(1) graphene oxide is added in modifying agent, after being uniformly dispersed, heating reaction obtains graphene oxide suspension；
(2) reflection filler is added in graphene oxide suspension, ultrasonic oscillation processing obtains mixed and modified material；
(3) mixed and modified material and polyaminoester emulsion, low-polyacrylate lotion, auxiliary agent are uniformly mixed, obtain reflection-type
Acroleic acid polyurethane energy-saving coatings.
Wherein, it is preferred that the temperature of heating reaction is 50-60 DEG C in step (1), under the conditions of the temperature, modifying agent and oxygen
The bonded speed of the active group of graphite alkene is fast.
Wherein, it is preferred that ultrasonic frequency is 50-80kHz in step (2), and under the frequency, graphene oxide is filled out with reflection
Material combination is closer, is conducive to interface reflection.
Wherein, it is preferred that the speed stirred in step (3) is 300-600r/min, and under the speed, mixing more evenly, is applied
Material is not easy to be layered.
Compared with prior art, beneficial effects of the present invention:
1, it uses graphene oxide as reflecting interface in the present invention, the reflectivity of reflection filler can be improved, to dramatically increase
The reflection cooling function and mechanical property of energy-saving coatings.
2, reflection filler is handled using modifying agent in the present invention, can improves and reflects filler and acroleic acid polyurethane
Compatibility, to improve the mechanical property of paint film.
3, the graphene oxide in the present invention is prepared by specific aim, more preferable with modifying agent bonding capability, from
And after being mixed with reflection filler, while making to reflect filler with more preferable compatibility, there is smaller gap, reflect improving
The reflectivity and mechanical property of filler have positive effect.
4, preparation method of the present invention can be such that graphene oxide combines with reflection filler closer, be conducive to light and reflect, to mentioning
The reflectivity of high reflection filler has positive effect.
5, preparation method of the present invention is simple, reliable, is suitble to extensive, the industrialized production of energy-saving coatings.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 55% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
It (b) is that 2g potassium permanganate powder is added in 5.0KV/m parallel electric field by the first suspension merging intensity, heating stirring obtains
Second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.2kg is 1 ︰ 2
3g graphene oxide after being uniformly dispersed, is heated to 55 DEG C of reaction 1.5h, obtains graphene oxide suspension；
(2) be added in graphene oxide suspension 1.5kg molar ratio be the rutile type titanium white of 5 ︰, 1 ︰ 2, talcum powder and
Barium sulfate handles 20min with the ultrasonic oscillation that frequency is 65kHz, obtains mixed and modified material；
(3) by the polyaminoester emulsion of mixed and modified material and 5.0kg, the low-polyacrylate lotion of 4kg, 50g benzoyl formic acid
Methyl esters, 0.4kg dispersing agent be uniformly mixed under the speed of 400r/min, obtain reflection-type acroleic acid polyurethane energy conservation painting
Material.
Embodiment 2
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 55% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
It (b) is that 2g potassium permanganate powder is added in 3.5KV/m parallel electric field by the first suspension merging intensity, heating stirring obtains
Second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.1kg is 1 ︰ 2
1g graphene oxide after being uniformly dispersed, is heated to 60 DEG C of reaction 1h, obtains graphene oxide suspension；
(2) molar ratio that 1kg is added in graphene oxide suspension is rutile type titanium white, talcum powder and the sulphur of 5 ︰, 1 ︰ 2
Sour barium handles 30min with the ultrasonic oscillation that frequency is 50kHz, obtains mixed and modified material；
(3) by the polyaminoester emulsion of mixed and modified material and 6kg, the low-polyacrylate lotion of 3kg, 30g alpha-hydroxyalkyl benzophenone,
The amine drier of 0.2kg is uniformly mixed under the speed of 300r/min, obtains reflection-type acroleic acid polyurethane energy conservation painting
Material.
Embodiment 3
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 55% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
It (b) is that 2g potassium permanganate powder is added in 6.5KV/m parallel electric field by the first suspension merging intensity, heating stirring obtains
Second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.3kg is 1 ︰ 2
5g graphene oxide after being uniformly dispersed, is heated to 50 DEG C of reaction 2h, obtains graphene oxide suspension；
(2) be added in graphene oxide suspension 2.0kg molar ratio be the rutile type titanium white of 5 ︰, 1 ︰ 2, talcum powder and
Barium sulfate handles 10min with the ultrasonic oscillation that frequency is 80kHz, obtains mixed and modified material；
(3) anti-settling agent of the polyaminoester emulsion of mixed and modified material and 4kg, the low-polyacrylate lotion of 5kg, 0.5kg are existed
It is uniformly mixed under the speed of 600r/min, obtains reflection-type acroleic acid polyurethane energy-saving coatings.
Comparative example 1
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 55% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
(b) 2g potassium permanganate powder is added in the first suspension, heating stirring obtains the second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.2kg is 1 ︰ 2
3g graphene oxide after being uniformly dispersed, is heated to 55 DEG C of reaction 1.5h, obtains graphene oxide suspension；
(2) be added in graphene oxide suspension 1.5kg molar ratio be the rutile type titanium white of 5 ︰, 1 ︰ 2, talcum powder and
Barium sulfate handles 20min with the ultrasonic oscillation that frequency is 65kHz, obtains mixed and modified material；
(3) dispersing agent of the polyaminoester emulsion of mixed and modified material and 5kg, the low-polyacrylate lotion of 4kg, 0.4kg are existed
It is uniformly mixed under the speed of 400r/min, obtains acroleic acid polyurethane energy-saving coatings.
Comparative example 2
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 55% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
It (b) is that 2g potassium permanganate powder is added in 5.0KV/m parallel electric field by the first suspension merging intensity, heating stirring obtains
Second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) by 3g graphene oxide, rutile type titanium white, talcum powder and the barium sulfate that the molar ratio with 1.5kg is 5 ︰, 1 ︰ 2,
The ultrasonic oscillation mixed processing 20min for being 65kHz with frequency, obtains mixture；
(2) by the polyaminoester emulsion of mixture and 5kg, the low-polyacrylate lotion of 4kg, 0.4kg dispersing agent in 400r/
It is uniformly mixed under the speed of min, obtains acroleic acid polyurethane energy-saving coatings.
Comparative example 3
Prepare graphene oxide:
(a) by the graphite powder of 8g 200ml is added be 50% by the mass percent concentration that volume ratio is 4 ︰ 1 sulfuric acid solution and
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that mass percent concentration is 45% mixes；
It (b) is that 2g potassium permanganate powder is added in 5.0KV/m parallel electric field by the first suspension merging intensity, heating stirring obtains
Second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and 20ml that the concentration of 4ml is 1.5mol/L is added
Concentration is 1.0mol/L hydrochloric acid solution, obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide；
Prepare energy-saving coatings:
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.2kg is 1 ︰ 1
The molar ratio of 3g graphene oxide and 1.5kg are rutile type titanium white, talcum powder and the barium sulfate of 5 ︰, 1 ︰ 2, are with frequency
The ultrasonic oscillation of 65kHz handles 20min, obtains mixed and modified material；
(2) dispersing agent of the polyaminoester emulsion of mixed and modified material and 5kg, the low-polyacrylate lotion of 4kg, 0.4kg are existed
It is uniformly mixed under the speed of 400r/min, obtains acroleic acid polyurethane energy-saving coatings.
Comparative example 4
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.2kg is 1 ︰ 1
The graphene oxide that 3g conventional method is prepared after being uniformly dispersed, is heated to 55 DEG C of reaction 1.5h, and it is outstanding to obtain graphene oxide
Turbid；
(2) be added in graphene oxide suspension 1.5kg molar ratio be the rutile type titanium white of 5 ︰, 1 ︰ 2, talcum powder and
Barium sulfate handles 20min with the ultrasonic oscillation that frequency is 65kHz, obtains mixed and modified material；
(3) by the polyaminoester emulsion of mixed and modified material and 5kg, the low-polyacrylate lotion that the 4kg degree of polymerization is 40,0.4kg
Dispersing agent is uniformly mixed under the speed of 400r/min, obtains acroleic acid polyurethane energy-saving coatings.
Comparative example 5
(1) it is added in the mixed solution of aminoacrylic acid and methallyl alcohol that the molar ratio of 0.2kg is 1 ︰ 1
The molar ratio of 1.5kg is rutile type titanium white, talcum powder and the barium sulfate of 5 ︰, 1 ︰ 2, the ultrasonic oscillation for being 65kHz with frequency
20min is handled, mixed and modified material is obtained；
(2) dispersing agent of the polyaminoester emulsion of mixed and modified material and 5kg, the low-polyacrylate lotion of 4kg, 0.4kg are existed
It is uniformly mixed under the speed of 400r/min, obtains acroleic acid polyurethane energy-saving coatings.
The energy-saving coatings that will be prepared in above-described embodiment 1-3 and comparative example 1-5 carry out performance detection (detection sample
With a thickness of 2mm, width 12mm), record data are as follows:
| Performance | Infrared reflection rate (%) | Tensile strength (MPa) | Elongation at break (%) |
| Embodiment 1 | 83.08 | 3.41 | 67.25 |
| Embodiment 2 | 83.16 | 3.38 | 59.46 |
| Embodiment 3 | 82.81 | 3.45 | 64.28 |
| Comparative example 1 | 74.23 | 2.95 | 46.28 |
| Comparative example 2 | 76.03 | 2.81 | 41.06 |
| Comparative example 3 | 78.79 | 3.29 | 82.13 |
| Comparative example 4 | 75.91 | 3.59 | 41.36 |
| Comparative example 5 | 70.36 | 2.68 | 32.10 |
To above-mentioned analysis of experimental data it is found that the energy-saving coatings being prepared in embodiment 1-3 using the method for the present invention, to infrared
The reflectivity of line is high, and mechanical property is good；And in comparative example 1, the preparation process of graphene oxide is not aoxidized in the electric field,
Graphite powder degree of oxidation is low, and graphene content is low, and interface reflectivity is low, the poor compatibility with raw material, obtained energy-saving coatings
Reflectivity and mechanical property significantly reduce；In comparative example 2, modifying agent is not added, graphene oxide and reflection filler are modified
Processing leads to its poor compatibility with raw material, and graphene oxide and reflection filler associativity are poor, obtained energy-saving coatings reflection
Rate significantly reduces, and mechanical property significantly reduces；In comparative example 3, during the preparation process, not according to present invention provide that sequence to oxygen
Graphite alkene and reflection filler are modified processing, cause graphene oxide poor in conjunction with reflection filler, lead to energy-saving coatings
Reflectivity has the decline of biggish degree；In comparative example 4, the graphene oxide used be it is conventional, active group thereon is more,
Reflectivity decline in interface reduces the reflectivity humidification of reflection filler, the energy conservation caused after reflecting in conjunction with filler
Coating reflectivity reduces；Graphene is not added in comparative example 5, the reflectivity and mechanical property of energy-saving coatings all significantly reduce.
Claims (10)
1. a kind of reflection-type acroleic acid polyurethane energy-saving coatings, including following parts by weight raw material are prepared: polyaminoester emulsion
40-60 parts, 30-50 parts of low-polyacrylate lotion, filler 10-20 parts of reflection, 3-8 parts of modifying agent, graphene oxide 0.01-
0.05 part, 2-5 parts of auxiliary agent；The reflection filler is one of rutile type titanium white, talcum powder, barium sulfate or a variety of；
The modifying agent is the aminoacrylic acid and methallyl alcohol that molar ratio is 1 ︰ 2.
2. energy-saving coatings according to claim 1, which is characterized in that reflection filler be gold that molar ratio is 5 ︰, 1 ︰ 2
The mixture of red stone-type titanium dioxide, talcum powder and barium sulfate.
3. energy-saving coatings according to claim 1, which is characterized in that the graphene oxide is by following preparation side
What method was prepared, comprising the following steps:
(a) by graphite powder be added by the mass percent concentration that volume ratio is 4 ︰ 1 be 55% sulfuric acid solution and mass percent it is dense
The first suspension is stirred to obtain in the acid solution that the nitric acid solution that degree is 45% mixes；
(b) the first suspension is placed in parallel electric field, potassium permanganate powder is added, heating stirring obtains the second suspension；
(c) after being cooled to room temperature the second suspension, the hydrogenperoxide steam generator and concentration that addition concentration is 1.5mol/L are
1.0mol/L hydrochloric acid solution obtains third suspension；
(d) third suspension is washed with deionized, is centrifugated, obtain sediment；
(e) sediment is dried in vacuo under constant temperature conditions, obtains graphene oxide.
4. energy-saving coatings according to claim 3, which is characterized in that the matter of graphite powder and mixed acid solution in step (a)
Measuring volume ratio (g ︰ ml) is 4 ︰ 100.
5. energy-saving coatings according to claim 3, which is characterized in that parallel electric field intensity is 3.5- in step (b)
6.5KV/m。
6. energy-saving coatings according to claim 3, which is characterized in that potassium permanganate powder and graphite powder in step (b)
Mass ratio is 1 ︰ 4.
7. energy-saving coatings according to claim 3, which is characterized in that the second suspension, hydrogenperoxide steam generator in step (c)
Volume ratio with hydrochloric acid solution is 50 ︰, 1 ︰ 5.
8. a kind of preparation method of such as described in any item energy-saving coatings of claim 1-7, which is characterized in that including following step
It is rapid:
(1) graphene oxide is added in modifying agent, after being uniformly dispersed, heating reaction obtains graphene oxide suspension；
(2) reflection filler is added in graphene oxide suspension, ultrasonic oscillation processing obtains mixed and modified material；
(3) mixed and modified material and polyaminoester emulsion, low-polyacrylate lotion, auxiliary agent are uniformly mixed, obtain reflection-type
Acroleic acid polyurethane energy-saving coatings.
9. preparation method according to claim 8, which is characterized in that the temperature of heating reaction is 50-60 in step (1)
℃。
10. preparation method according to claim 8, which is characterized in that ultrasonic frequency is 50-80kHz in step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071758.9A CN109135386A (en) | 2018-09-14 | 2018-09-14 | A kind of reflection-type acroleic acid polyurethane energy-saving coatings |
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| CN201811071758.9A CN109135386A (en) | 2018-09-14 | 2018-09-14 | A kind of reflection-type acroleic acid polyurethane energy-saving coatings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113416452A (en) * | 2021-06-22 | 2021-09-21 | 广东鑫皇冠新材料有限公司 | Heat-conducting and heat-dissipating water-soluble fluoride coating and preparation method thereof |
| CN116751488A (en) * | 2023-06-19 | 2023-09-15 | 广东吉美帮新材料有限公司 | Coating with efficient shading performance and preparation method thereof |
-
2018
- 2018-09-14 CN CN201811071758.9A patent/CN109135386A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113416452A (en) * | 2021-06-22 | 2021-09-21 | 广东鑫皇冠新材料有限公司 | Heat-conducting and heat-dissipating water-soluble fluoride coating and preparation method thereof |
| CN116751488A (en) * | 2023-06-19 | 2023-09-15 | 广东吉美帮新材料有限公司 | Coating with efficient shading performance and preparation method thereof |
| CN116751488B (en) * | 2023-06-19 | 2024-02-02 | 广东吉美帮新材料有限公司 | Coating with efficient shading performance and preparation method thereof |
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