CN109971221A - Heat conducting energy-saving coating and preparation method thereof and coating product - Google Patents
Heat conducting energy-saving coating and preparation method thereof and coating product Download PDFInfo
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- CN109971221A CN109971221A CN201910238617.XA CN201910238617A CN109971221A CN 109971221 A CN109971221 A CN 109971221A CN 201910238617 A CN201910238617 A CN 201910238617A CN 109971221 A CN109971221 A CN 109971221A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
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Abstract
The invention discloses one kind can effectively improve heat transfer efficiency, reaches heat conducting energy-saving coating of energy-saving effect and preparation method thereof and coating product.The total weight of the heat conducting energy-saving coating based on heat conducting energy-saving coating, including following components: binder 30-60wt%, binder modification agent 1-5wt%, heatproof pigment 5-20wt%, ceramic filler 15-40wt%, metal heat-conducting filler 0-15wt%, binder modification agent is at least one of oxide, hydroxide, carbonate of metallic element, metallic element is selected from zinc, magnesium, calcium, copper, iron, manganese, and binder includes phosphate binders.The heat conducting energy-saving coating can be used for civilian cookware outer wall, be suitable for various metal bases.Heating method can reach certain energy-saving effect for open fire, electric ceramic heaters etc., and energy-saving effect is different, while also function to certain decorative and protective.
Description
Technical field
The present invention relates to technical field of coatings, in particular to a kind of heat conducting energy-saving coating and preparation method thereof and coating system
Product.
Background technique
With getting worse for energy and environmental problem, how preferably energy conservation has become new era thermally conductive equipment institute face
Pair primary problem.For large industry equipment, the method for improving heat transfer efficiency has formd a set of more perfect
System.But the heat conducting energy-saving method of civilian small device device is still at an early stage, and reason is that small device is constructed
It is bothered with processing, and higher cost, it is some to use the method on industrial equipment, due to health, environmental protection etc.
Problem and civil field can not be extended to, this disregards but also wasting due to the reasons such as utensil heat transfer efficiency is not high in daily life
Its energy counted.
In daily civilian cookware market, the exploitation of functional protective coating is related to not gluing mostly, is resistance to mild anti-
The performances such as scuffing, but this several type coating is mainly used in the inner wall of cookware, and the heat transfer efficiency for improving cookware acts on little.And
In cookware outer wall, what is used is usually the metal material of cookware itself, also or simply protective coating, also it is few about
Coating research in terms of heat conducting energy-saving.Therefore, it is necessary to which heat transfer efficiency can be effectively improved by providing one kind, reach energy-saving effect
Heat conducting energy-saving coating.
Summary of the invention
The purpose of the present invention is to provide one kind can effectively improve heat transfer efficiency, and the heat conducting energy-saving for reaching energy-saving effect applies
Material and preparation method thereof and coating product.
The technical solution used in the present invention is:
A kind of heat conducting energy-saving coating, based on the total weight of heat conducting energy-saving coating, including following components: binder 30-
60wt%, binder modification agent 1-5wt%, heatproof pigment 5-20wt%, ceramic filler 15-40wt%, metal heat-conducting are filled out
Expect 0-15wt%, binder modification agent is at least one of oxide, hydroxide, carbonate of metallic element, metal member
Element is selected from zinc, magnesium, calcium, copper, iron, manganese, and binder includes phosphate binders.
Wherein, heatproof pigment can specifically refer to the inorganic pigment of high-temperature baking resistant, for example, it may be titanium dioxide, ferrozirconium
Red, vanadium zirconium Huang, chrome oxide green, cobalt blue, cobalt black, copper-chrome black and carbon black or some other it is known in the art have it is similar special
The pigment etc. of property, these pigment are less likely to occur situations such as being denaturalized, fading, fall off in the higher situation of temperature.In this programme
Heat filling be divided into two classes, ceramic filler and metal heat-conducting filler, ceramic filler is preferably some to have higher leads
The ceramic material of hot coefficient, metal heat-conducting filler preferably some metal materials with high thermal conductivity.
Preferably, binder modification agent is at least one of zinc oxide, magnesia, Kocide SD, calcium hydroxide.
Preferably, selection analysis is pure when in use or the material purity of above rank for binder modification agent.
Preferably, phosphate binders are aluminium dihydrogen phosphate.
Preferably, binder further includes sol adhesive.
Preferably, the solid content of binder is 30-50%, pH value 2-5.
It is further preferred that sol adhesive be titanium sol adhesive, cerium sol adhesive, in sol bonded yttrium agent extremely
Few one kind.
Preferably, ceramic filler is at least one of aluminium oxide, boron nitride, aluminium nitride, silicon nitride and silicon carbide.
Preferably, the grain diameter of ceramic thermal conducting material is 50nm-15 μm.
Preferably, metal heat-conducting filler is at least one of aluminium silver powder, Cu-Zn alloy powder.
Preferably, the grain diameter of metal heat-conducting filler is 2-6 μm.
Preferably, the grain diameter of heatproof pigment is preferably 100nm-3 μm.
The preparation method of above-mentioned heat conducting energy-saving coating, comprising the following steps:
(1) take or prepare the aqueous solution of binder；
(2) binder modification agent is added in the aqueous solution of the binder and is dissolved into modified binder；
(3) heatproof pigment, ceramic filler, dispersion are added in modified binder, grinding obtains heat conducting energy-saving slurry；
(4) metal heat-conducting filler is added in heat conducting energy-saving slurry, heat conducting energy-saving coating is obtained by filtration in dispersion.
A kind of coating product, including substrate and coating coating on base material, coating is by above-mentioned heat conducting energy-saving coating system
, it can be by the concrete mode that coating is made in coating and heat conducting energy-saving coating stirring homogenizing be coated on substrate, by drying
Solidification obtains coating coating on base material.
Wherein, the mode of coating can specifically be solidified using brushing, spraying, roller coating or some other common mode
Journey, which specifically can be, is placed on 200 DEG C of curing oven 1h or some other common curing mode in air drying 2h.
Preferably, coating product is cooking utensils, such as can be cookware, and heat conducting energy-saving coating is coated in the outer of cookware
There is better heat-transfer effect when side is to use.
The beneficial effects of the present invention are:
The present invention is mainly using phosphate solution as the main body of binder, by introducing metal compound material as bonding
Agent modifying agent promotees so that phosphate anion and the metal ion of binder modification agent react binder in the curing process
Keep solution supersaturated in a relatively short period of time, oversaturated solution can be precipitated phosphate agglutinate with fast speed and generate precipitating
Object reduces the solidification temperature of binder system so that binder system be made to coagulate and harden.The reduction of solidification temperature can be with
It plays coating properties preferably, will also promote the capacity of heat transmission to a certain extent.In addition, drawing in binder system
The crystal form that the metal ion entered will lead to system changes, and the variation on this crystal form equally can make binder in high temperature shape
Possess more stable structure and adhesive property under state.Heatproof pigment collocation ceramic filler, forms certain skeleton structure.Together
When, ceramic filler and the sclay texture in metal heat-conducting filler, spherical structure, irregular structure mix into leading for coating
Ther mal network, the heatproof pigment of the high radiativity of folder, effectively increases the heat-conducting effect of coating.Metal heat-conducting filler can also be with bonding
Agent system is crosslinked bonding, greatly improves the mechanical performance of coating, heat resistance.And possess more stable structure under the condition of high temperature
Binder system is it is also possible that the heat transfer efficiency of the heat conduction network of coating greatly promotes.
Heat conducting energy-saving coating provided by the present invention can be used for civilian cookware outer wall, be suitable for various metal bases.Heating
Mode can be open fire, electric ceramic heaters etc., can reach certain energy-saving effect, energy-saving effect is different, while also functioning to certain dress
Decorations property and protectiveness.
Further beneficial effect of the invention also resides in, and adjusts the pH of binder to faintly acid, will not send out with metal base
Raw reaction, considerably increases its range used.Nanoparticle in titanium colloidal sol, cerium colloidal sol or yttrium colloidal sol is uniformly scattered in painting
In layer, mutually it is crosslinked with binder and other various types of filler bondings, improves the compactness, bond strength and hardness of coating.
Specific embodiment
It is clearly and completely described below with reference to technical effect of the embodiment to design and generation of the invention, with
It is completely understood by the purpose of the present invention, feature and effect.
Embodiment 1
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 18 parts of water, 40 parts of aluminium dihydrogen phosphate, copper chromium
Black 10 parts, 4 parts of aluminium oxide, 15 parts of aluminium nitride, 10 parts of silicon carbide, 3 parts of calcium hydroxide.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate into deionized water, the revolving speed of linear velocity 0.6-1m/s is kept to be sufficiently stirred；
2) calcium hydroxide is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, copper-chrome black, aluminium oxide, aluminium nitride, silicon carbide, every kind of object are slowly added to
15min is kept stirring after material addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) by being ground to fineness up to 15 μm hereinafter, up to heat conducting energy-saving coating after filtering.
Embodiment 2
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 15 parts of water, 45 parts of aluminium dihydrogen phosphate, cobalt black
12 parts, 5 parts of aluminium oxide, 5 parts of boron nitride, 14 parts of silicon carbide, 4 parts of magnesia.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate into deionized water, the revolving speed of linear velocity 0.6-1m/s is kept to be sufficiently stirred；
2) magnesia is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, cobalt black, aluminium oxide, boron nitride, silicon carbide, every kind of material are slowly added to
15min is kept stirring after addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) by being ground to fineness up to 15 μm hereinafter, up to heat conducting energy-saving coating after filtering.
Embodiment 3
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 17 parts of water, 30 parts of aluminium dihydrogen phosphate, titanium are molten
8 parts of glue, 12 parts of copper-chrome black, 6 parts of cobalt black, 8 parts of silicon nitride, 10 parts of silicon carbide, 4 parts of aluminium silver powder, 2 parts of Cu-Zn alloy powder, zinc oxide 1.5
Part, 1.5 parts of magnesia.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate, titanium colloidal sol into deionized water, keeps the revolving speed of linear velocity 0.6-1m/s abundant
Stirring；
2) zinc oxide, magnesia is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, copper-chrome black, cobalt black, silicon nitride, silicon carbide, every kind of material are slowly added to
15min is kept stirring after addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) by being ground to fineness up to 15 μm hereinafter, aluminium silver powder, Cu-Zn alloy powder is added, on-line velocity is the high-speed stirring of 2-3m/s
It mixes down and is kept stirring 2h；
6) up to heat conducting energy-saving coating after filtering.
Embodiment 4
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 17 parts of water, 30 parts of aluminium dihydrogen phosphate, cerium are molten
4 parts of glue, 6 parts of yttrium colloidal sol, 10 parts of copper-chrome black, 4 parts of chrome green, 6 parts of aluminium nitride, 10 parts of silicon nitride, 8 parts of aluminium silver powder, 2 parts of zinc oxide,
2 parts of magnesia, 1 part of Kocide SD.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate, cerium colloidal sol, yttrium colloidal sol into deionized water, keeps turning for linear velocity 0.6-1m/s
Speed is sufficiently stirred；
2) zinc oxide, magnesia, Kocide SD is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, copper-chrome black, chrome green, aluminium nitride, silicon nitride, every kind of material are slowly added to
15min is kept stirring after addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) it by being ground to fineness up to 15 μm hereinafter, aluminium silver powder is added, is protected under the high-speed stirred that on-line velocity is 2-3m/s
Hold stirring 2h；
6) up to heat conducting energy-saving coating after filtering.
Embodiment 5
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 14 parts of water, 40 parts of aluminium dihydrogen phosphate, yttrium are molten
6 parts of glue, 13 parts of cobalt black, 2 parts of chrome green, 4 parts of aluminium nitride, 4 parts of silicon nitride, 12 parts of silicon carbide, 3 parts of Cu-Zn alloy powder, 4 parts of calcium hydroxide.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate, yttrium colloidal sol into deionized water, keeps the revolving speed of linear velocity 0.6-1m/s abundant
Stirring；
2) calcium hydroxide is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, it is slowly added to cobalt black, chrome green, aluminium nitride, silicon nitride, silicon carbide, often
15min is kept stirring after kind material addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) it by being ground to fineness up to 15 μm hereinafter, Cu-Zn alloy powder is added, is protected under the high-speed stirred that on-line velocity is 2-3m/s
Hold stirring 2h；
6) up to heat conducting energy-saving coating after filtering.
Embodiment 6
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 18 parts of water, 33 parts of aluminium dihydrogen phosphate, titanium are molten
2 parts of glue, 4 parts of cerium colloidal sol, 1 part of yttrium colloidal sol, 5 parts of copper-chrome black, 8 parts of cobalt black, 6 parts of boron nitride, 18 parts of aluminium nitride, 3 parts of magnesia, hydrogen
2 parts of copper oxide.
The preparation step of the heat conducting energy-saving coating is as follows:
1) it is poured slowly into aluminium dihydrogen phosphate, titanium colloidal sol, cerium colloidal sol, yttrium colloidal sol into deionized water, keeps linear velocity 0.6-
The revolving speed of 1m/s is sufficiently stirred；
2) magnesia, Kocide SD is added, to being completely dissolved, solution is in clear for stirring；
3) under the stirring that on-line velocity is 1-2m/s, copper-chrome black, cobalt black, boron nitride, aluminium nitride, every kind of material are slowly added to
15min is kept stirring after addition；
4) after to material all addition, 1h is kept stirring under the high-speed stirred that on-line velocity is 2-3m/s；
5) by being ground to fineness up to 15 μm hereinafter, up to heat conducting energy-saving coating after filtering.
Embodiment 7
Performance test
The performance of embodiment 1-6 and the resulting heat conducting energy-saving coating of comparative example 1 are detected by the following method:
Coating production is as follows: coating being sprayed to processed stainless steel substrate surface in right amount, by air drying
2h is placed on 200 DEG C of curing oven 1h to get the coating product of fine and close heat conducting energy-saving coating is covered with.The processing of stainless steel substrate
Mode can specifically include alkali cleaning, washing, drying, ball blast.
Partial test method is as follows: durometer properties to coating progress by GB/T 26704-2011 standard using pencil hardometer
It can detection；Wearability Indexs measure is carried out by GB/T 23988-2009 standard using knockout tester；It is pressed using pull-out test instrument
GB/T5210-1985 standard detects the adhesion strength between coating and substrate.
Coating capacity of heat transmission test method is as follows: the heat conducting energy-saving coating prepared is sprayed on the stainless steel dual-broth hot pot the bottom of a pan
One side of something, then by etc. the tap water of quality (300g) pour into two liners of dual-broth hot pot respectively.The stainless steel dual-broth hot pot that will be filled with water
Be placed in electric ceramic heaters, using bracket by two thermometer hoverings right above the liner of stainless steel dual-broth hot pot on, adjust temperature
Meter height, is immersed in the water temperature sense probe but does not touch the bottom of a pan, and guarantees that two water-immersed depth of thermometer are consistent.
Electric ceramic heaters power is adjusted to 1500w, record have coating and uncoated two sides water respectively reach 98 DEG C used in the time.
The composition of comparative example 1 is as follows: according to the gross mass of coating, consisting of: 17 parts of water, 30 parts of aluminium dihydrogen phosphate, titanium
11 parts of colloidal sol, 12 parts of copper-chrome black, 6 parts of cobalt black, 8 parts of silicon nitride, 10 parts of silicon carbide, 4 parts of aluminium silver powder, 2 parts of Cu-Zn alloy powder.
The results are shown in Table 1 for testing partial performances:
1. heat conducting energy-saving coating performance test result of table
| Hardness | Wearability (L/ μm) | Adhesive force (Mpa) | There is coating/uncoated (s) | |
| Embodiment 1 | 6H | 2.112 | 8.0 | 150/247 |
| Embodiment 2 | 6H | 2.083 | 6.5 | 163/244 |
| Embodiment 3 | 6H | 3.101 | 12.7 | 157/248 |
| Embodiment 4 | 6H | 2.785 | 11.4 | 161/249 |
| Embodiment 5 | 6H | 2.634 | 10.4 | 139/239 |
| Embodiment 6 | 6H | 3.143 | 7.9 | 143/241 |
| Comparative example 1 | 6H | 1.912 | 5.3 | 147/246 |
As shown in 1 result of table, relative to comparative example 1, the performances such as wearability, adhesive force of coating, which have, obviously to be mentioned
It rises.The above results show after being added to binder modification agent that coating can generate more rambling crystalline substance at high operating temperatures
Type structure makes it possess better adhesive property and more stable state, reaches energy-saving effect.
Embodiment 8
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 1 part of water, 45 parts of magnesium dihydrogen phosphate, titanium are molten
2 parts of glue, 5 parts of cerium colloidal sol, 3 parts of yttrium colloidal sol, 5 parts of copper-chrome black, 10 parts of boron nitride, 25 parts of aluminium nitride, 3 parts of silicon nitride, zinc carbonate 1
Part.
Embodiment 9
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 17 parts of water, 25 parts of zinc dihydrogen phosphate, cerium are molten
4 parts of glue, 1 part of yttrium colloidal sol, vanadium zirconium yellow 16 parts, 4 parts of zirconium iron pink, 13 parts of boron nitride, 12 parts of silicon nitride, 2 parts of manganous hydroxide, hydroxide
3 parts of copper, 3 parts of Cu-Zn alloy powder.
Embodiment 10
A kind of heat conducting energy-saving coating, according to the gross mass of coating, consisting of: 15 parts of water, 45 parts of aluminium dihydrogen phosphate, cerium are molten
15 parts of glue, 5 parts of titanium white, 5 parts of silicon nitride, 10 parts of silicon carbide, 5 parts of iron hydroxide.
Obviously, embodiments described above is only a part of the embodiments of the present invention, instead of all the embodiments.
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (10)
1. a kind of heat conducting energy-saving coating, which is characterized in that the total weight based on the heat conducting energy-saving coating, including following components:
Binder 30-60wt%, binder modification agent 1-5wt%, heatproof pigment 5-20wt%, ceramic filler 15-40wt%, gold
Belong to heat filling 0-15wt%, the binder modification agent be the oxide of metallic element, hydroxide, in carbonate at least
One kind, the metallic element are selected from zinc, magnesium, calcium, copper, iron, manganese, and the binder includes phosphate binders.
2. heat conducting energy-saving coating according to claim 1, which is characterized in that the binder modification agent is zinc oxide, oxygen
Change at least one of magnesium, Kocide SD, calcium hydroxide.
3. heat conducting energy-saving coating according to claim 1, which is characterized in that the phosphate binders are biphosphate
Aluminium.
4. heat conducting energy-saving coating according to claim 1, which is characterized in that the binder further includes sol adhesive.
5. heat conducting energy-saving coating according to claim 4, which is characterized in that the sol adhesive is that titanium is sol bonded
At least one of agent, cerium sol adhesive, sol bonded yttrium agent.
6. heat conducting energy-saving coating according to claim 1-5, which is characterized in that the ceramic filler is oxygen
Change at least one of aluminium, boron nitride, aluminium nitride, silicon nitride and silicon carbide.
7. heat conducting energy-saving coating according to claim 1-5, which is characterized in that the metal heat-conducting filler is aluminium
At least one of silver powder, Cu-Zn alloy powder.
8. the preparation method of the described in any item heat conducting energy-saving coating of claim 1-7, which comprises the following steps:
(1) take or prepare the aqueous solution of binder；
(2) binder modification agent mixed dissolution is added in the aqueous solution of the binder；
(3) heatproof pigment, the dispersion of ceramic filler, grinding is added；
(4) dispersion of metal heat-conducting filler, filtering is added.
9. a kind of coating product, which is characterized in that including the coating of substrate and coating on the substrate, the coating is by right
It is required that the described in any item heat conducting energy-saving coating of 1-7 are made.
10. coating product according to claim 9, which is characterized in that the coating product is cooking utensils.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112795214A (en) * | 2020-12-31 | 2021-05-14 | 成都布雷德科技有限公司 | High-temperature-resistant inorganic hole sealing solution for thermal spraying coating and using method thereof |
| CN112876885A (en) * | 2021-01-26 | 2021-06-01 | 成都布雷德科技有限公司 | Inorganic ceramic coating and preparation method and use method thereof |
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| CN112876885A (en) * | 2021-01-26 | 2021-06-01 | 成都布雷德科技有限公司 | Inorganic ceramic coating and preparation method and use method thereof |
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Application publication date: 20190705 |