CN115029106B - Dustproof agent with self-cleaning function and preparation method thereof - Google Patents
Dustproof agent with self-cleaning function and preparation method thereof Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims description 30
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 55
- 229920001661 Chitosan Polymers 0.000 claims abstract description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 43
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims description 81
- 238000003756 stirring Methods 0.000 claims description 63
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 32
- 235000010413 sodium alginate Nutrition 0.000 claims description 32
- 239000000661 sodium alginate Substances 0.000 claims description 32
- 229940005550 sodium alginate Drugs 0.000 claims description 32
- 239000003607 modifier Substances 0.000 claims description 22
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 19
- 239000001913 cellulose Substances 0.000 claims description 19
- 229920002678 cellulose Polymers 0.000 claims description 19
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 19
- 235000011152 sodium sulphate Nutrition 0.000 claims description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 18
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- -1 rare earth lanthanum sulfate Chemical class 0.000 claims description 12
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 8
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims description 7
- 229910003472 fullerene Inorganic materials 0.000 claims description 7
- 238000009210 therapy by ultrasound Methods 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 6
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 6
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 20
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 74
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- VQEHIYWBGOJJDM-UHFFFAOYSA-H lanthanum(3+);trisulfate Chemical compound [La+3].[La+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VQEHIYWBGOJJDM-UHFFFAOYSA-H 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention is disclosed inA dustproof agent with self-cleaning function is provided, which is SiO 2 ‑TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3 (7-9) to 1. The invention improves the carbon nano tube, improves the activity and dispersity of the raw materials of the product, and combines the raw materials with SiO with the assistance of the carbon nano tube synergist 2 ‑TiO 2 The composite powder has the effect of coordinating the effects, and the chitosan modified rare earth liquid enhances the synergistic effect of the two raw materials, so that the product not only has high hydrophilic performance, but also can improve the light transmission effect of the product, and has the dual-functional effect of coordinating and improving the product.
Description
Technical Field
The invention relates to the technical field of self-cleaning materials, in particular to a dustproof agent with a self-cleaning function and a preparation method thereof.
Background
A photovoltaic panel assembly is a power generation device that generates direct current when exposed to sunlight and is composed of thin solid photovoltaic cells made almost entirely of semiconductor material (e.g., silicon). The photoelectric conversion efficiency of the monocrystalline silicon solar cell is about 15% and the highest is 24%, which is the highest photoelectric conversion efficiency in all kinds of solar cells at present, but the manufacturing cost is so great that it cannot be widely and universally used in a large amount.
The existing dustproof agent adopts SiO 2 -TiO 2 The composite material has high-efficiency hydrophilic self-cleaning effect, but has high reflectivity and poor light transmittance, and the formed product is used in a photovoltaic system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a dustproof agent with a self-cleaning function and a preparation method thereof, so as to solve the problems in the prior art.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a dustproof agent with a self-cleaning function, which is SiO 2 -TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3 (7-9) to 1;
the preparation method of the chitosan modified rare earth liquid comprises the following steps:
s01: adding 5-7% by weight of rare earth lanthanum sulfate solution into deionized water according to a weight ratio of 1:5, then adding sodium alginate modifier accounting for 5-10% of the total weight of the rare earth lanthanum sulfate solution, stirring and mixing fully at a rotating speed of 300-500r/min, stirring for 20-30min, and ending stirring to obtain rare earth base solution;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 3-7% of the total weight of the chitosan solution and sodium pyrophosphate accounting for 1-5%, and stirring and mixing fully;
s03: adding the S02 product into rare earth base solution of 3-5 times, stirring at 55-65deg.C for 15-25min at a stirring speed of 300-500r/min to obtain chitosan modified rare earth solution.
Preferably, the SiO 2 -TiO 2 The particle size of the composite powder is 100-200nm.
Preferably, the preparation method of the sodium alginate modifier comprises the following steps:
and mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing fully in a cellulose sodium sulfate solution with the total amount of 5 times of the sodium alginate, wherein the dispersing speed is 450-550r/min, the dispersing time is 40-50min, and the dispersing is finished to obtain the sodium alginate modifier.
Preferably, the cellulose sodium sulfate solution is prepared by mixing cellulose sodium sulfate and ethanol according to a weight ratio of 1:5.
The inventor of the invention discovers that the contact angle and the light transmittance improvement rate of a product are obviously reduced without adding the carbon nanotube synergist and the chitosan modified rare earth liquid, and discovers that the preparation methods of the chitosan modified rare earth liquid and the performances of the products are different.
Preferably, the preparation method of the carbon nano tube synergist comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in 5-9 times of hydrochloric acid solution, wherein the ultrasonic power is 450-550W, the ultrasonic time is 30-40min, and the ultrasonic treatment is finished, washed and dried;
s102: adding 2-6 parts of hexadecyl trimethyl ammonium bromide into 15-20 parts of deionized water, then adding 0.2-0.5 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into 4-5 times of modified liquid, stirring and mixing fully, washing with water and drying to obtain the carbon nano tube synergist.
The inventor of the invention discovers that the irradiation treatment in an aprotic irradiation box, the addition of cobalt nitrate solution and the addition of hexadecyl trimethyl ammonium bromide in the modified liquid in the carbon nanotube synergist have certain influence on the contact angle and the light transmittance improvement rate of the product, and the carbon nanotube synergist prepared by the method has the most obvious effect of improving the product.
Preferably, the irradiation power of the proton irradiation box is 100-150W, and the irradiation time is 10-20min.
Preferably, the mass fraction of the cobalt nitrate solution is 1-5%.
Preferably, the stirring and mixing in the step S103 are carried out at a rotating speed of 1000-1500r/min and a mixing time of 10-20min.
The invention also provides a preparation method of the dustproof agent with the self-cleaning function, which comprises the following steps:
firstly, stirring and mixing the raw materials at a rotating speed of 350-450r/min for full mixing for 35-45min, and obtaining a dustproof agent after mixing;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
Preferably, the pressure of the high-pressure injection is 10-20MPa, and the thickness of the injection coating is 1-3um.
Compared with the prior art, the invention has the following beneficial effects:
the dust-proof agent of the invention adopts SiO 2 -TiO 2 The composite powder is used as a base material, the chitosan modified rare earth liquid and the carbon nano tube synergist are used as a synergistic batch, the chitosan modified rare earth liquid is prepared by matching and improving a lanthanum sulfate solution and a sodium alginate modifier, the sodium alginate modifier is prepared by adopting raw materials such as sodium alginate, fullerene and the like, the activity effect of the chitosan modified rare earth liquid is improved, and meanwhile, the activity effect of the rare earth liquid is improvedDispersion efficiency of SiO 2 -TiO 2 The composite powder can improve the dispersion performance and the dissolution effect of the raw materials of the product in rare earth liquid, the activity and the dispersion degree are improved through proton irradiation and hydrochloric acid solution dispersion by taking the carbon nano tube as a carrier with high specific surface area, and the modified liquid formed by mixing hexadecyl trimethyl ammonium bromide and cobalt nitrate solution is improved for improving the carbon nano tube, the activity and the dispersion degree of the raw materials of the product are improved, and the modified liquid is matched with SiO by assistance of a carbon nano tube synergist 2 -TiO 2 The composite powder has the effect of coordinating the effects, and the chitosan modified rare earth liquid enhances the synergistic effect of the two raw materials, so that the product not only has high hydrophilic performance, but also can improve the light transmission effect of the product, and has the dual-functional effect of coordinating and improving the product.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The dustproof agent with the self-cleaning function in the embodiment is SiO 2 -TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3 (7-9) to 1;
the preparation method of the chitosan modified rare earth liquid comprises the following steps:
s01: adding 5-7% by weight of rare earth lanthanum sulfate solution into deionized water according to a weight ratio of 1:5, then adding sodium alginate modifier accounting for 5-10% of the total weight of the rare earth lanthanum sulfate solution, stirring and mixing fully at a rotating speed of 300-500r/min, stirring for 20-30min, and ending stirring to obtain rare earth base solution;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 3-7% of the total weight of the chitosan solution and sodium pyrophosphate accounting for 1-5%, and stirring and mixing fully;
s03: adding the S02 product into rare earth base solution of 3-5 times, stirring at 55-65deg.C for 15-25min at a stirring speed of 300-500r/min to obtain chitosan modified rare earth solution.
SiO of the present embodiment 2 -TiO 2 The particle size of the composite powder is 100-200nm.
The preparation method of the sodium alginate modifier in the embodiment comprises the following steps:
and mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing fully in a cellulose sodium sulfate solution with the total amount of 5 times of the sodium alginate, wherein the dispersing speed is 450-550r/min, the dispersing time is 40-50min, and the dispersing is finished to obtain the sodium alginate modifier.
The cellulose sodium sulfate solution of the embodiment is prepared by mixing cellulose sodium sulfate and ethanol according to the weight ratio of 1:5.
The preparation method of the carbon nano tube synergist of the embodiment comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in 5-9 times of hydrochloric acid solution, wherein the ultrasonic power is 450-550W, the ultrasonic time is 30-40min, and the ultrasonic treatment is finished, washed and dried;
s102: adding 2-6 parts of hexadecyl trimethyl ammonium bromide into 15-20 parts of deionized water, then adding 0.2-0.5 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into 4-5 times of modified liquid, stirring and mixing fully, washing with water and drying to obtain the carbon nano tube synergist.
The irradiation power of the proton irradiation box of the embodiment is 100-150W, and the irradiation time is 10-20min.
The mass fraction of the cobalt nitrate solution in the embodiment is 1-5%.
In the step S103 of this embodiment, the stirring and mixing are performed at a sufficient rotation speed of 1000-1500r/min and a mixing time of 10-20min.
The preparation method of the dustproof agent with the self-cleaning function comprises the following steps:
firstly, stirring and mixing the raw materials at a rotating speed of 350-450r/min for full mixing for 35-45min, and obtaining a dustproof agent after mixing;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
The high pressure spray pressure in this example was 10-20MPa and the spray film thickness was 1-3um.
Example 1.
The dustproof agent with the self-cleaning function in the embodiment is SiO 2 -TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3:7:1;
the preparation method of the chitosan modified rare earth liquid comprises the following steps:
s01: adding a rare earth lanthanum sulfate solution with the mass fraction of 5% into deionized water according to the weight ratio of 1:5, then adding a sodium alginate modifier with the total amount of 5% of the rare earth lanthanum sulfate solution, stirring and mixing fully at the rotating speed of 300r/min, stirring for 20min, and obtaining a rare earth base solution after stirring;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 3% of the total weight of the chitosan solution and sodium pyrophosphate accounting for 1%, and stirring and mixing fully;
s03: and adding the S02 product into the rare earth base solution of which the ratio is 3, stirring for 15min at 55 ℃ at the stirring speed of 300r/min to obtain the chitosan modified rare earth solution.
SiO of the present embodiment 2 -TiO 2 The particle size of the composite powder is 100nm.
The preparation method of the sodium alginate modifier in the embodiment comprises the following steps:
and mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing in a cellulose sodium sulfate solution sufficiently, wherein the dispersing speed is 450r/min, the dispersing time is 40min, and the dispersing is finished to obtain the sodium alginate modifier.
The cellulose sodium sulfate solution of the embodiment is prepared by mixing cellulose sodium sulfate and ethanol according to the weight ratio of 1:5.
The preparation method of the carbon nano tube synergist of the embodiment comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in 5 times of hydrochloric acid solution, wherein the ultrasonic power is 450W, the ultrasonic time is 30min, and the ultrasonic treatment is finished, washed and dried;
s102: adding 2 parts of hexadecyl trimethyl ammonium bromide into 15 parts of deionized water, then adding 0.2 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into a 4-time modified liquid, stirring and mixing fully, and then washing and drying to obtain the carbon nano tube synergist.
The irradiation power of the proton irradiation box of the embodiment is 100W, and the irradiation time is 10min.
The mass fraction of the cobalt nitrate solution of this example was 1%.
In S103 of this example, the stirring and mixing were carried out at a rotational speed of 1000r/min for a mixing time of 10min.
The preparation method of the dustproof agent with the self-cleaning function comprises the following steps:
firstly, stirring and mixing raw materials at a rotating speed of 350r/min for a period of 35min, and obtaining a dustproof agent after the mixing;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
The pressure of the high-pressure ejection in this example was 10MPa, and the thickness of the ejection coating film was 1. Mu.m.
Example 2.
The dustproof agent with the self-cleaning function in the embodiment is SiO 2 -TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3:9:1;
the preparation method of the chitosan modified rare earth liquid comprises the following steps:
s01: adding a rare earth lanthanum sulfate solution with the mass fraction of 7% into deionized water according to the weight ratio of 1:5, then adding a sodium alginate modifier with the total amount of 10% of the rare earth lanthanum sulfate solution, stirring and mixing fully at the rotating speed of 500r/min, stirring for 30min, and obtaining a rare earth base solution after stirring;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 7 percent of the total weight of the chitosan solution and sodium pyrophosphate accounting for 5 percent of the total weight of the chitosan solution, and stirring and mixing fully;
s03: and adding the S02 product into rare earth base solution of 5 times, and stirring for 25min at 65 ℃ at the stirring speed of 500r/min to obtain chitosan modified rare earth solution.
SiO of the present embodiment 2 -TiO 2 The particle size of the composite powder is 200nm.
The preparation method of the sodium alginate modifier in the embodiment comprises the following steps:
and mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing in a cellulose sodium sulfate solution sufficiently, wherein the dispersing speed is 550r/min, the dispersing time is 50min, and the dispersing is finished to obtain the sodium alginate modifier.
The cellulose sodium sulfate solution of the embodiment is prepared by mixing cellulose sodium sulfate and ethanol according to the weight ratio of 1:5.
The preparation method of the carbon nano tube synergist of the embodiment comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in a hydrochloric acid solution with the power of 550W and the time of 40min, and ending ultrasonic treatment, washing and drying;
s102: adding 6 parts of cetyl trimethyl ammonium bromide into 20 parts of deionized water, then adding 0.5 part of cobalt nitrate solution, and stirring and mixing thoroughly to obtain a modified liquid;
s103: and (3) placing the S101 product into a 5-time modified liquid, stirring and mixing fully, and then washing and drying to obtain the carbon nano tube synergist.
The irradiation power of the proton irradiation box of the embodiment is 150W, and the irradiation time is 20min.
The mass fraction of the cobalt nitrate solution of this example was 5%.
In S103 of this example, the stirring and mixing were carried out at a rotational speed of 1500r/min for a mixing time of 20min.
The preparation method of the dustproof agent with the self-cleaning function comprises the following steps:
firstly, stirring and mixing the raw materials at a rotating speed of 450r/min, wherein the mixing time is 45min, and the dust-proof agent is obtained after the mixing is finished;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
The pressure of the high-pressure ejection in this example was 20MPa, and the thickness of the ejection coating was 3. Mu.m.
Example 3.
The dustproof agent with the self-cleaning function in the embodiment is SiO 2 -TiO 2 The preparation method of the composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist comprises the following steps of:
s01: adding a rare earth lanthanum sulfate solution with the mass fraction of 6% into deionized water according to the weight ratio of 1:5, then adding a sodium alginate modifier with the total amount of 7.5% of the rare earth lanthanum sulfate solution, stirring and mixing fully at the rotating speed of 400r/min, stirring for 25min, and ending stirring to obtain a rare earth base solution;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 5% of the total weight of the chitosan solution and sodium pyrophosphate accounting for 3%, and stirring and mixing fully;
s03: and adding the S02 product into the rare earth base solution of 4 times, and stirring for 20min at 60 ℃ at the stirring speed of 400r/min to obtain the chitosan modified rare earth solution.
SiO of the present embodiment 2 -TiO 2 The particle size of the composite powder is 150nm.
The preparation method of the sodium alginate modifier in the embodiment comprises the following steps:
and mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing the mixture in a cellulose sodium sulfate solution with the total amount of 5 times of the sodium alginate sufficiently, wherein the dispersing speed is 500r/min, the dispersing time is 45min, and the dispersing is finished to obtain the sodium alginate modifier.
The cellulose sodium sulfate solution of the embodiment is prepared by mixing cellulose sodium sulfate and ethanol according to the weight ratio of 1:5.
The preparation method of the carbon nano tube synergist of the embodiment comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in a hydrochloric acid solution with the power of 7 times of that of the carbon nano tube, wherein the ultrasonic power is 500W, the ultrasonic time is 35min, and performing ultrasonic treatment, washing and drying;
s102: adding 4 parts of cetyl trimethyl ammonium bromide into 17.5 parts of deionized water, then adding 0.35 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into a 4.5 times modified liquid, stirring and mixing fully, washing with water and drying to obtain the carbon nano tube synergist.
The irradiation power of the proton irradiation box of the embodiment is 120W, and the irradiation time is 15min.
The mass fraction of the cobalt nitrate solution of this example was 3%.
In S103 of this example, the stirring and mixing were carried out at a rotational speed of 1250r/min and a mixing time of 15min.
The preparation method of the dustproof agent with the self-cleaning function comprises the following steps:
firstly, stirring and mixing raw materials at a rotating speed of 400r/min for 40min, and obtaining a dustproof agent after the mixing;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
The pressure of the high-pressure ejection in this example was 15MPa, and the thickness of the ejection coating was 2. Mu.m.
Comparative example 1.
The difference from example 3 is that no carbon nanotube synergist was added.
Comparative example 2.
The difference from example 3 is that the chitosan modified rare earth liquid is not added.
Comparative example 3.
The difference from example 3 is that sodium alginate modifier is not added into the chitosan modified rare earth liquid.
Comparative example 4.
The difference from example 3 is that no chitosan solution was added.
Comparative example 5.
The difference from example 3 is that sodium alginate modifier is not added with cellulose sodium sulfate solution.
The results of the performance measurements of examples 1-3 and comparative examples 1-5 are as follows
From examples 1-3 and comparative examples 1-5, the product of example 3 of the invention has excellent contact angle and light transmittance improvement performance, and the prepared product can realize significant improvement of light transmittance improvement and contact angle coordination; the contact angle and the light transmittance of the product are obviously reduced without adding the carbon nanotube synergist and the chitosan modified rare earth liquid, and meanwhile, the chitosan modified rare earth liquid prepared by the method has obvious performance improvement effect because of different preparation methods and different performances.
The preparation method of the carbon nano tube synergist comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in a hydrochloric acid solution with the power of 7 times of that of the carbon nano tube, wherein the ultrasonic power is 500W, the ultrasonic time is 35min, and performing ultrasonic treatment, washing and drying;
s102: adding 4 parts of cetyl trimethyl ammonium bromide into 17.5 parts of deionized water, then adding 0.35 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into a 4.5 times modified liquid, stirring and mixing fully, washing with water and drying to obtain the carbon nano tube synergist.
The irradiation power of the proton irradiation box of the embodiment is 120W, and the irradiation time is 15min.
The mass fraction of the cobalt nitrate solution of this example was 3%.
In S103 of this example, the stirring and mixing were carried out at a rotational speed of 1250r/min and a mixing time of 15min.
The invention further explores the product performance through the carbon nano tube synergist
Experimental example 1.
The same as in example 3, except that the irradiation treatment in the tank was not performed.
Experimental example 2.
The procedure of example 3 was repeated except that the modification solution was not added with the cobalt nitrate solution.
Experimental example 3.
As in example 3, except that cetyltrimethylammonium bromide was not added to the modified liquid.
From experimental examples 1-3, the carbon nano tube synergist prepared by the method has a certain influence on the contact angle and the light transmittance improvement rate of the product due to the irradiation treatment in an aprotic irradiation box, the addition of cobalt nitrate solution and the addition of hexadecyl trimethyl ammonium bromide in the modified solution, and the improvement effect of the product is most remarkable.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A dustproof agent with self-cleaning function is characterized in that the dustproof agent is SiO 2 -TiO 2 The composite powder, the chitosan modified rare earth liquid and the carbon nano tube synergist are prepared according to the weight ratio of 3 (7-9) to 1;
the preparation method of the chitosan modified rare earth liquid comprises the following steps:
s01: adding 5-7% by weight of rare earth lanthanum sulfate solution into deionized water according to a weight ratio of 1:5, then adding sodium alginate modifier accounting for 5-10% of the total weight of the rare earth lanthanum sulfate solution, stirring and mixing fully at a rotating speed of 300-500r/min, stirring for 20-30min, and ending stirring to obtain rare earth base solution;
s02: mixing chitosan and acetic acid according to a weight ratio of 1:5 to form a chitosan solution, then adding citric acid accounting for 3-7% of the total weight of the chitosan solution and sodium pyrophosphate accounting for 1-5%, and stirring and mixing fully;
s03: adding the S02 product into rare earth base solution of which the ratio is 3-5 times, stirring for 15-25min at 55-65 ℃ at the stirring speed of 300-500r/min to obtain chitosan modified rare earth solution;
the preparation method of the sodium alginate modifier comprises the following steps:
mixing sodium alginate and fullerene according to a weight ratio of 4:1, then dispersing and mixing fully in a cellulose sodium sulfate solution, wherein the dispersing speed is 450-550r/min, the dispersing time is 40-50min, and the dispersing is finished to obtain a sodium alginate modifier;
the cellulose sodium sulfate solution is prepared by mixing cellulose sodium sulfate and ethanol according to a weight ratio of 1:5;
the preparation method of the carbon nano tube synergist comprises the following steps:
s101: firstly placing the carbon nano tube into a proton irradiation box for irradiation treatment, then performing ultrasonic dispersion treatment in 5-9 times of hydrochloric acid solution, wherein the ultrasonic power is 450-550W, the ultrasonic time is 30-40min, and the ultrasonic treatment is finished, washed and dried;
s102: adding 2-6 parts of hexadecyl trimethyl ammonium bromide into 15-20 parts of deionized water, then adding 0.2-0.5 part of cobalt nitrate solution, and stirring and mixing fully to obtain a modified liquid;
s103: and (3) placing the S101 product into 4-5 times of modified liquid, stirring and mixing fully, washing with water and drying to obtain the carbon nano tube synergist.
2. The self-cleaning dust-proofing agent according to claim 1, wherein said SiO 2 -TiO 2 The particle size of the composite powder is 100-200nm.
3. The dustproof agent with the self-cleaning function according to claim 1, wherein the irradiation power of the proton irradiation box is 100-150W, and the irradiation time is 10-20min.
4. The dustproof agent with the self-cleaning function according to claim 1, wherein the mass fraction of the cobalt nitrate solution is 1-5%.
5. The dustproof agent with self-cleaning function according to claim 1, wherein the stirring and mixing speed in S103 is 1000-1500r/min, and the mixing time is 10-20min.
6. A method for preparing the dustproof agent with self-cleaning function according to any one of claims 1 to 5, comprising the steps of:
firstly, stirring and mixing the raw materials at a rotating speed of 350-450r/min for full mixing for 35-45min, and obtaining a dustproof agent after mixing;
and step two, spraying the dustproof agent to the surface of the photovoltaic panel under high pressure to form a coating.
7. The method for preparing the dustproof agent with the self-cleaning function according to claim 6, wherein the high-pressure spraying pressure is 10-20MPa, and the spraying film thickness is 1-3um.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108977174A (en) * | 2018-09-21 | 2018-12-11 | 佛山市森昂生物科技有限公司 | A kind of dust suppressant |
| CN109929281A (en) * | 2019-03-25 | 2019-06-25 | 秦皇岛美博士新型材料科技有限公司 | A kind of conch meal water soluble paint and preparation method thereof quickly removing formaldehyde |
| CN113912442A (en) * | 2021-09-29 | 2022-01-11 | 广州珠矶科技有限公司 | Preparation method and application of water-retention dust-suppression green-restoration environment-friendly material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108977174A (en) * | 2018-09-21 | 2018-12-11 | 佛山市森昂生物科技有限公司 | A kind of dust suppressant |
| CN109929281A (en) * | 2019-03-25 | 2019-06-25 | 秦皇岛美博士新型材料科技有限公司 | A kind of conch meal water soluble paint and preparation method thereof quickly removing formaldehyde |
| CN113912442A (en) * | 2021-09-29 | 2022-01-11 | 广州珠矶科技有限公司 | Preparation method and application of water-retention dust-suppression green-restoration environment-friendly material |
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