CN109575777B - Antistatic coating for radome and preparation method thereof - Google Patents
Antistatic coating for radome and preparation method thereof Download PDFInfo
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- CN109575777B CN109575777B CN201811497755.1A CN201811497755A CN109575777B CN 109575777 B CN109575777 B CN 109575777B CN 201811497755 A CN201811497755 A CN 201811497755A CN 109575777 B CN109575777 B CN 109575777B
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- 239000011248 coating agent Substances 0.000 title claims abstract description 65
- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000012046 mixed solvent Substances 0.000 claims abstract description 18
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 17
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 16
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 16
- 239000010445 mica Substances 0.000 claims abstract description 16
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 16
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 13
- 150000002148 esters Chemical class 0.000 claims abstract description 10
- 108010064470 polyaspartate Proteins 0.000 claims abstract description 10
- 229920000805 Polyaspartic acid Polymers 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims description 30
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 18
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 16
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 16
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 16
- 229920005862 polyol Polymers 0.000 claims description 14
- 150000003077 polyols Chemical class 0.000 claims description 14
- 239000008096 xylene Substances 0.000 claims description 14
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 13
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 8
- 238000012644 addition polymerization Methods 0.000 claims description 7
- 229920001610 polycaprolactone Polymers 0.000 claims description 7
- 239000004632 polycaprolactone Substances 0.000 claims description 7
- 229920000515 polycarbonate Polymers 0.000 claims description 7
- 239000004417 polycarbonate Substances 0.000 claims description 7
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 4
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 4
- 230000008033 biological extinction Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011231 conductive filler Substances 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 18
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 235000011037 adipic acid Nutrition 0.000 description 9
- 239000001361 adipic acid Substances 0.000 description 9
- 230000003628 erosive effect Effects 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an antistatic coating for a radome and a preparation method thereof, wherein the coating is formed by mixing a component A and a component B, wherein the component A comprises the following components in percentage by weight: 12-20% of polyaspartic acid ester, 10-15% of titanium dioxide, 0.5-1.5% of carbon nano tube, 0.5-1.5% of conductive mica powder, 5-7% of matting powder, 2-4% of dispersing agent, 0.3-0.8% of flatting agent, 0.5-1% of defoaming agent, 0.03-0.05% of catalyst and 0. 57.65-60.67% of mixed solvent A; the component B comprises the following components in percentage by weight: 60-65% of polyisocyanate and 35-40% of mixed solvent B. The invention can meet the mechanical property required by the radome, so that the surface of the radome has a certain antistatic effect, the addition of the prepared coating conductive filler is 2%, the coating thickness is 30 mu M, the coating resistivity is 0.5 MOmega-25 MOmega, the wave transmittance is more than 75%, the requirement of the antistatic coating for the radome is completely met, the effect of releasing surface static electricity of the antistatic coating for the radome is realized, and the electronic equipment such as an antenna in the radome and the like can be effectively protected.
Description
Technical Field
The invention belongs to the technical field of airplane radome protection, and particularly relates to an antistatic coating for a radome and a preparation method thereof.
Background
The airplane radome is positioned at the front part of the airplane and is an important guiding component for normal flight and operation of the airplane. When an airplane flies in a complex environment, the radome is subjected to erosion by rain and erosion by sand and stones, and static electricity is generated on the surface of the radome after the radome is strongly rubbed with air. In order to protect the mechanical property, the antistatic property, the electromagnetic wave transmission efficiency and other characteristics of the radar cover, the normal function of the radar is guaranteed. Therefore, the surface of the radome is protected by coating the radome with an elastic antistatic coating system with high wave-transmitting rate.
Antistatic coating systems typically include a primer, a rain erosion resistant coating, and an antistatic coating, where the antistatic coating has a relatively low resistivity and the radome coating system has a relatively high transmissivity, low dielectric constant, and low dielectric loss. In order for the coating to have a high wave-transmitting rate, in addition to using raw materials (including resins, fillers, pigments, solvents, etc.) with a low dielectric constant, the effect of the thickness of the coating on the wave-transmitting rate is also large. In order to satisfy the rain erosion resistance, sand erosion resistance and wet-heat and salt fog resistance of the radar cover coating, the thickness of the rain erosion resistant coating is generally not less than 120 μm, and in order to control the total coating thickness, the thickness of the antistatic coating must be less than or equal to 30 μm. Since the conductivity of the antistatic coating is enhanced with the increase in the thickness of the paint film and the amount of conductive filler, the surface resistivity of the antistatic coating for radomes is generally required to be in the range of 0.5M Ω to 25M Ω. The thickness of the antistatic coating sold on the market is far more than 30 mu M, the surface resistivity is about 100M omega, the resistivity range required by the antistatic coating for the radome is completely exceeded, the effect of releasing surface static electricity by the antistatic coating for the radome is difficult to realize, and further destructive influence is possibly generated on electronic equipment such as antennas in the radome and even the radome.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide the elastic antistatic coating for the radome, which has high wave transmittance, low resistivity and a thickness of less than 30 mu m.
The invention also aims to provide a preparation method of the antistatic coating for the radome.
In order to achieve the purpose, the invention adopts the following technical scheme: an antistatic coating for a radome comprises a component A and a component B in a mass ratio of 100: 60-100, wherein the component A comprises the following components in percentage by weight: 12-20% of polyaspartic acid ester, 10-15% of titanium dioxide, 0.5-1.5% of carbon nano tube, 0.5-1.5% of conductive mica powder, 5-7% of matting powder, 2-4% of dispersing agent, 0.3-0.8% of flatting agent, 0.5-1% of defoaming agent, 0.03-0.05% of catalyst and 0. 57.65-60.67% of mixed solvent A; the component B comprises the following components in percentage by weight: 60-65% of polyisocyanate and 35-40% of mixed solvent B.
Further, the polyaspartate ester is one or a mixture of more than one of NH-1521, NH-1520, NH-1420 and NH-1220 in any proportion.
Further, the extinction powder is any one of TS-100, ED-30 and 920 wax powder or a mixture of more than one of the wax powder in any proportion.
Further, the dispersing agent is at least one of BYK-110, BYK-163 and BYK-P104S.
Further, the leveling agent is at least one of BYK-378, BYK-320 and BYK-306.
Further, the defoaming agent is at least one of BYK-054 and BYK-066N, BYK-052.
Further, the catalyst is at least one of dibutyltin dilaurate, stannous octoate and dibutyltin diacetate.
Further, the mixed solvent A is at least two of cyclohexanone, xylene and butyl acetate, and the mixed solvent B is at least two of propylene glycol methyl ether acetate, xylene and butyl acetate.
Further, the polyisocyanate is a mixture which is formed by addition polymerization of one or more of polycaprolactone polyol, polycarbonate polyol, adipic acid resin, trimethylolpropane and HDI and IPDI, and the NCO percentage content of the mixture is 2-4%.
A method of preparing an antistatic coating for a radome, the method comprising the steps of:
A. sequentially adding polyaspartic acid ester, a dispersing agent, a flatting agent, a defoaming agent, a catalyst, titanium dioxide and a part of mixed solvent A into a reactor under a stirring state, stirring and dispersing for 10 minutes, grinding and dispersing until the fineness is less than 30 micrometers, then adding carbon nano tubes and conductive mica powder, grinding and dispersing for 4 hours at the grinding speed of 1200r/min, adding matting powder and the rest of mixed solvent A after grinding and dispersing completely, dispersing for 20 minutes at the high speed at the grinding speed of 1500r/min, and discharging after dispersing uniformly to obtain a component A;
B. adding one or more of polycaprolactone polyol, polycarbonate polyol, adipic acid resin, trimethylolpropane and HDI into a reaction kettle, adding a mixed solvent B, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, filtering when the measured NCO percentage content is 2-4%, and discharging to obtain a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 60-100 to prepare the antistatic coating for the radome.
Compared with the prior art, the invention has the following beneficial effects: the antistatic coating for the radome consists of a component A and a component B, wherein the component A consists of polyaspartic acid ester, titanium dioxide, carbon nano tubes, conductive mica powder, matting powder, a dispersing agent, a leveling agent, a defoaming agent, a catalyst and a mixed solvent A; the component B is composed of polyisocyanate and a mixed solvent B, wherein the base resin is selected from polyaspartic acid ester and polyisocyanate, the polyisocyanate with certain elasticity and strength is formed by addition polymerization of one or more of polycaprolactone polyol, polycarbonate polyol, adipic acid resin, trimethylolpropane and HDI and IPDI, the polyisocyanate and the polyaspartic acid ester react to generate elastic polyurethane with excellent tensile strength and elongation at break, the mechanical property required by the radome can be met, and the conductive carbon nano tube and the conductive mica powder are selected as conductive fillers to provide conductive performance for the coating, so that the surface of the radome has a certain antistatic effect. In order to balance the influence of the thickness of the coating and the addition of the conductive filler on the resistivity and the wave-transmitting rate of the coating, the invention creatively obtains the mixing and adding proportion of the carbon nano tube and the conductive mica powder, the addition of the prepared conductive filler of the coating is 2 percent, the thickness of the coating is 30 mu M, the resistivity of the coating is 0.5 MOmega-25 MOmega, the wave-transmitting rate is more than 75 percent, the requirements of the antistatic coating for the radome are completely met, the effect of releasing surface static electricity of the antistatic coating for the radome can be realized, and thus electronic equipment such as an antenna and the like in the radome can be effectively protected.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
An antistatic coating for a radome comprises a component A and a component B in a mass ratio of 100: 60, the component A consists of the following components in percentage by weight: NH-152112%, titanium dioxide 15%, carbon nanotube 0.5%, conductive mica powder 1.5%, TS-1005%, BYK-1104%, BYK-3780.3%, BYK-0541%, dibutyltin dilaurate 0.03%, cyclohexanone 30% and xylene 30.67%; the component B comprises the following components in percentage by weight: 60% of polyisocyanate, 20% of propylene glycol monomethyl ether acetate and 20% of xylene, wherein the polyisocyanate is a mixture which is formed by addition polymerization of polycaprolactone polyol and IPDI and has NCO percentage content of 4%.
The preparation method of the antistatic coating for the radome comprises the following steps:
A. sequentially adding NH-1521, BYK-110, BYK-378, BYK-054, dibutyltin dilaurate, titanium dioxide and cyclohexanone into a reactor under a stirring state, stirring and dispersing for 10 minutes, then grinding and dispersing until the fineness is less than 30 micrometers, then adding a carbon nano tube and conductive mica powder, grinding and dispersing for 4 hours at a grinding speed of 1200r/min, adding TS-100 and xylene after grinding and dispersing completely, dispersing for 20 minutes at a high speed at a grinding speed of 1500r/min, and discharging after dispersing uniformly to obtain a component A;
B. adding polycaprolactone polyol into a reaction kettle, adding propylene glycol monomethyl ether acetate and xylene, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, and filtering and discharging when the percentage content of NCO is 4% to obtain a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 60 to prepare the antistatic coating for the radome.
Example 2
An antistatic coating for a radome comprises a component A and a component B in a mass ratio of 100: 100, the component A consists of the following components in percentage by weight: NH-152020%, titanium dioxide 10%, carbon nanotube 1.5%, conductive mica powder 0.5%, ED-307%, BYK-1632%, BYK-3200.8%, BYK-066N 0.5%, stannous octoate 0.05%, xylene 35%, and butyl acetate 22.65%; the component B comprises the following components in percentage by weight: 65% of polyisocyanate, 20% of dimethylbenzene and 15% of butyl acetate, wherein the polyisocyanate is a mixture which is formed by polycarbonate polyol, adipic acid resin and IPDI through addition polymerization and has the NCO percentage content of 2%.
The preparation method of the antistatic coating for the radome comprises the following steps:
A. sequentially adding NH-1520, BYK-163, BYK-320, BYK-066N, stannous octoate, titanium dioxide and xylene into a reactor under a stirring state, stirring and dispersing for 10 minutes, then grinding and dispersing until the fineness is less than 30 micrometers, then adding a carbon nano tube and conductive mica powder, grinding and dispersing for 4 hours at the grinding speed of 1200r/min, adding ED-30 and butyl acetate after grinding and dispersing completely, dispersing for 20 minutes at the grinding speed of 1500r/min at a high speed, and discharging after dispersing uniformly to obtain a component A;
B. adding polycarbonate polyol and adipic acid resin into a reaction kettle, adding dimethylbenzene and butyl acetate, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, and filtering and discharging when the percentage content of NCO is 2% to obtain a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 100 to prepare the antistatic coating for the radome.
Example 3
An antistatic coating for a radome comprises a component A and a component B in a mass ratio of 100: 80, the component A consists of the following components in percentage by weight: NH-142016%, titanium dioxide 12%, carbon nanotube 1%, conductive mica powder 1%, 920 wax powder 6%, BYK-P104S 3%, BYK-3060.5%, BYK-0520.8%, dibutyltin diacetate 0.04%, cyclohexanone 30% and butyl acetate 29.66%; the component B comprises the following components in percentage by weight: 62% of polyisocyanate, 19% of propylene glycol monomethyl ether acetate and 19% of butyl acetate, wherein the polyisocyanate is a mixture which is formed by addition polymerization of adipic acid resin, trimethylolpropane, HDI and IPDI and has the NCO percentage content of 3%.
The preparation method of the antistatic coating for the radome comprises the following steps:
A. sequentially adding NH-1420, BYK-P104S, BYK-306, BYK-052, dibutyltin diacetate, titanium pigment and cyclohexanone into a reactor under a stirring state, stirring and dispersing for 10 minutes, grinding and dispersing until the fineness is less than 30 mu m, then adding carbon nano tubes and conductive mica powder, grinding and dispersing for 4 hours at the grinding speed of 1200r/min, adding 920 wax powder and butyl acetate after complete grinding and dispersing, dispersing for 20 minutes at the grinding speed of 1500r/min at a high speed, and discharging after uniform dispersion to obtain a component A;
B. adding adipic acid resin, trimethylolpropane and HDI into a reaction kettle, adding propylene glycol monomethyl ether acetate and butyl acetate, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, and filtering and discharging when the percentage content of NCO is 3% to obtain a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 80 to prepare the antistatic coating for the radome.
Example 4
An antistatic coating for a radome comprises a component A and a component B in a mass ratio of 100: 70, the component A consists of the following components in percentage by weight: NH-14204%, NH-122010%, titanium dioxide 13%, carbon nanotube 0.8%, conductive mica powder 1.2%, ED-303%, 920 wax powder 3%, BYK-1631%, BYK-P104S 2%, BYK-3200.3%, BYK-3060.3%, BYK-066N 0.3%, BYK-0520.5%, stannous octoate 0.01%, dibutyltin diacetate 0.02%, cyclohexanone 20%, xylene 20%, and butyl acetate 20.57%; the component B comprises the following components in percentage by weight: 63% of polyisocyanate, 17% of propylene glycol methyl ether acetate, 10% of xylene and 10% of butyl acetate, wherein the polyisocyanate is a mixture which is formed by addition polymerization of adipic acid resin, trimethylolpropane and IPDI and has the NCO percentage content of 4%.
The preparation method of the antistatic coating for the radome comprises the following steps:
A. sequentially adding NH-1420, NH-1220, BYK-163, BYK-P104S, BYK-320, BYK-306, BYK-066N, BYK-052, stannous octoate, dibutyltin diacetate, titanium dioxide, cyclohexanone and xylene into a reactor under a stirring state, stirring and dispersing for 10 minutes, then grinding and dispersing until the fineness is less than 30 mu m, then adding carbon nano tubes and conductive mica powder, grinding and dispersing for 4 hours at the grinding speed of 1200r/min, adding ED-30, 920 wax powder and butyl acetate after grinding and dispersing are complete, high-speed dispersing for 20 minutes at the grinding speed of 1500r/min, and discharging after uniform dispersion to obtain a component A;
B. adding adipic acid resin and trimethylolpropane into a reaction kettle, adding propylene glycol monomethyl ether acetate, xylene and butyl acetate, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, and filtering and discharging when the percentage content of NCO is measured to be 4%, thus obtaining a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 70, and preparing the antistatic coating for the radome.
The implementation effect is as follows:
the products of examples 1 to 4, in which the amount of conductive filler added was 2% and the coating thickness was below 30 μm, were coated on a radome and tested for antistatic properties and wave transmittance after drying for 7 days. The test results were as follows:
| detecting items | Example 1 | Example 2 | Example 3 | Example 4 |
| resistivity/M omega | 15 | 9 | 4 | 6 |
| Wave transmittance/% | 76 | 78 | 81 | 84 |
Claims (7)
1. A preparation method of an antistatic coating for a radome is characterized by comprising the following steps: the antistatic coating for the radome comprises a component A and a component B in a mass ratio of 100: 60-100, wherein the component A comprises the following components in percentage by weight: 12-20% of polyaspartic acid ester, 10-15% of titanium dioxide, 0.5-1.5% of carbon nano tube, 0.5-1.5% of conductive mica powder, 5-7% of matting powder, 2-4% of dispersing agent, 0.3-0.8% of flatting agent, 0.5-1% of defoaming agent, 0.03-0.05% of catalyst and 57.65-60.67% of mixed solvent, wherein the polyaspartic acid ester is any one or a mixture of more than one of NH-1521 and NH-1220 in any proportion; the component B comprises the following components in percentage by weight: 60-65% of polyisocyanate and 35-40% of mixed solvent B, wherein the polyisocyanate is a mixture which is formed by addition polymerization of one or more of polycaprolactone polyol, polycarbonate polyol, trimethylolpropane and HDI and IPDI and has NCO percentage content of 2-4%; the preparation method of the antistatic coating for the radome comprises the following steps:
A. sequentially adding polyaspartic acid ester, a dispersing agent, a flatting agent, a defoaming agent, a catalyst, titanium dioxide and a part of mixed solvent A into a reactor under a stirring state, stirring and dispersing for 10 minutes, grinding and dispersing until the fineness is less than 30 micrometers, then adding carbon nano tubes and conductive mica powder, grinding and dispersing for 4 hours at the grinding speed of 1200r/min, adding matting powder and the rest of mixed solvent A after grinding and dispersing completely, dispersing for 20 minutes at the high speed at the grinding speed of 1500r/min, and discharging after dispersing uniformly to obtain a component A;
B. adding one or more of polycaprolactone polyol, polycarbonate polyol, trimethylolpropane and HDI into a reaction kettle, adding a mixed solvent B, heating to a reflux state, dehydrating for 1 hour, cooling to 50 ℃, adding IPDI, carrying out heat preservation reaction for 4 hours, and filtering and discharging when the percentage content of NCO is measured to be 2-4%, so as to obtain a component B;
C. mixing the component A and the component B according to the mass ratio of 100: 60-100 to prepare the antistatic coating for the radome.
2. The method for preparing an antistatic coating for a radome of claim 1, wherein: the extinction powder is any one of TS-100, ED-30 and 920 wax powder or a mixture of more than one of the above wax powder in any proportion.
3. The method for preparing an antistatic coating for a radome of claim 1, wherein: the dispersant is at least one of BYK-110, BYK-163 and BYK-P104S.
4. The method for preparing an antistatic coating for a radome of claim 1, wherein: the leveling agent is at least one of BYK-378, BYK-320 and BYK-306.
5. The method for preparing an antistatic coating for a radome of claim 1, wherein: the defoaming agent is at least one of BYK-054 and BYK-066N, BYK-052.
6. The method for preparing an antistatic coating for a radome of claim 1, wherein: the catalyst is at least one of dibutyltin dilaurate, stannous octoate and dibutyltin diacetate.
7. The method for preparing an antistatic coating for a radome of claim 1, wherein: the mixed solvent A is at least two of cyclohexanone, xylene and butyl acetate, and the mixed solvent B is at least two of propylene glycol methyl ether acetate, xylene and butyl acetate.
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| CN119585371A (en) * | 2022-07-27 | 2025-03-07 | Sika技术股份公司 | Coating composition with anti-static discharge protection and coating system containing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812267A (en) * | 2010-05-24 | 2010-08-25 | 唐山市思远涂料有限公司 | Antistatic, heat-insulating and corrosion-resistance coating |
| CN103951940A (en) * | 2014-04-10 | 2014-07-30 | 惠州学院 | Antistatic epoxy resin composite material and preparation method thereof |
| CN105399400A (en) * | 2015-12-08 | 2016-03-16 | 王景泉 | Novel coating having electromagnetic radiation resistance and anti-static function |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812267A (en) * | 2010-05-24 | 2010-08-25 | 唐山市思远涂料有限公司 | Antistatic, heat-insulating and corrosion-resistance coating |
| CN103951940A (en) * | 2014-04-10 | 2014-07-30 | 惠州学院 | Antistatic epoxy resin composite material and preparation method thereof |
| CN105399400A (en) * | 2015-12-08 | 2016-03-16 | 王景泉 | Novel coating having electromagnetic radiation resistance and anti-static function |
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