CN117186676B - Pure inorganic coating for ship and preparation method thereof - Google Patents
Pure inorganic coating for ship and preparation method thereof Download PDFInfo
- Publication number
- CN117186676B CN117186676B CN202311476403.9A CN202311476403A CN117186676B CN 117186676 B CN117186676 B CN 117186676B CN 202311476403 A CN202311476403 A CN 202311476403A CN 117186676 B CN117186676 B CN 117186676B
- Authority
- CN
- China
- Prior art keywords
- parts
- powder
- niti
- ldhs
- capsaicin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 239000011248 coating agent Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 12
- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 claims abstract description 92
- 239000000843 powder Substances 0.000 claims abstract description 83
- 229960002504 capsaicin Drugs 0.000 claims abstract description 46
- 235000017663 capsaicin Nutrition 0.000 claims abstract description 46
- 239000011259 mixed solution Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000013530 defoamer Substances 0.000 claims abstract description 13
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 11
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000440 bentonite Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 11
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052912 lithium silicate Inorganic materials 0.000 claims abstract description 11
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 11
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 11
- 239000010456 wollastonite Substances 0.000 claims abstract description 11
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 11
- 239000010457 zeolite Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000003973 paint Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 23
- 239000007795 chemical reaction product Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- 239000003513 alkali Substances 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 13
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 12
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 12
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 10
- 150000002191 fatty alcohols Chemical class 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000005909 Kieselgur Substances 0.000 claims description 2
- 238000002791 soaking Methods 0.000 abstract description 17
- 230000003373 anti-fouling effect Effects 0.000 abstract description 12
- 239000004530 micro-emulsion Substances 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- -1 nickel cations Chemical class 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010936 titanium Substances 0.000 abstract description 3
- 229910052719 titanium Inorganic materials 0.000 abstract description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 2
- 150000001768 cations Chemical class 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 239000002518 antifoaming agent Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010071 organism adhesion Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The application relates to the technical field of inorganic paint, and in particular discloses pure inorganic paint for ships and a preparation method thereof, wherein the pure inorganic paint for ships comprises the following raw materials in parts by weight: 80-100 parts of high-purity zinc powder, 8-10 parts of NiTi-CA-LDHs powder, 10-20 parts of potassium silicate, 30-40 parts of lithium silicate, 5-20 parts of wollastonite powder, 0.005-0.007 part of bentonite, 1-5 parts of zeolite powder, 0.001-0.003 part of defoamer and 30-50 parts of water. The NiTi-LDHs powder is prepared by introducing titanium and nickel cations into the microemulsion mixed solution as lamellar cations of LDHs, generating active oxygen species, widely sterilizing by utilizing the strong oxidizing effect of the active oxygen species, enhancing the antifouling property of the active oxygen species, and then inserting capsaicin into the microemulsion mixed solution by an ion exchange method to prepare the NiTi-CA-LDHs powder, so that the release of the capsaicin can be effectively delayed, the action time can be prolonged, and the soaking resistance of the NiTi-CA-LDHs powder can be improved. The pure inorganic coating for the ship has the advantages of excellent performance, high adhesive force, strong shock resistance, strong soaking resistance, good antifouling performance, no addition of organic matters, environmental protection and no pollution.
Description
Technical Field
The application relates to the technical field of inorganic coatings, in particular to a pure inorganic coating for ships and a preparation method thereof.
Background
Currently, a ship is an artificial vehicle that operates primarily in geographical water. In addition, civil ships are generally called ships, military ships are called ships, and small ships are called boats or ships, which are collectively called ships or boats. The ship is generally formed by welding steel, when the ship is in a marine environment for a long time, seawater, marine atmospheric corrosion and marine organism adhesion can seriously corrode the ship, so that the water resistance, rust resistance, corrosion resistance and aging resistance are important standards after the ship is formed, the protection measures are proper, and the service life of the ship is guaranteed.
The common ship protection measures are that the ship body and parts thereof can be protected by coating the paint on the surfaces of the ships and the parts, so that corrosion is reduced, and the service life of the ship is prolonged. Marine coatings can be classified into inorganic coatings and organic coatings.
However, most of the existing organic coatings contain polymers such as acrylic ester or PVC, so that the high efficiency and long-acting property of corrosion prevention are achieved, and the marine environment is always damaged. With the continuous release of laws and regulations related to ocean environmental protection in the global area, environmental friendly inorganic coatings are more popular, and most of inorganic coating patents in the prior art are named as inorganic coatings, but organic components are added, so that environmental protection indexes are greatly discounted.
Disclosure of Invention
In order to further improve the service life of the ship, the application provides the pure inorganic coating for the ship with soaking resistance, antifouling property and environmental protection performance and a preparation method thereof.
In a first aspect, the present application provides a pure inorganic coating for a ship, which adopts the following technical scheme:
the pure inorganic coating for the ship comprises the following raw materials in parts by weight: 80-100 parts of high-purity zinc powder, 8-10 parts of NiTi-CA-LDHs powder, 10-20 parts of potassium silicate, 30-40 parts of lithium silicate, 5-20 parts of wollastonite powder, 0.005-0.007 part of bentonite, 1-5 parts of zeolite powder, 0.001-0.003 part of defoamer and 30-50 parts of water;
the NiTi-CA-LDHs powder is prepared by the following steps: s1, mixing fatty alcohol polyoxyethylene ether, cyclohexane and deionized water, stirring until the solution is free of agglomerates to obtain a mixed solution A, and slowly dropwise adding glycerol into the mixed solution A until the mixed solution A is stable and transparent to obtain a mixed solution B; s2, adding Ni (NO) into the mixed solution B 3 ) 2 ·6H 2 O and TiCl 4 Stirring for 2h, then dripping NaNO 3 Dropwise adding NaOH solution to adjust the pH to be 10, and stirring at 85-90 ℃ for reaction for 36h; s3, after the reaction is finished, naturally cooling to room temperature, centrifugally recovering a reaction product, washing the reaction product with deionized water and absolute ethyl alcohol for three times, drying the reaction product at 50 ℃ to constant weight, and grinding the reaction product to obtain NiTi-LDHs powder; s4, mixing and dissolving Capsaicin (CA) and NaOH in a molar ratio of 1-1.2:2-2.5 to prepare capsaicin solution, dispersing NiTi-LDHs powder in the capsaicin solution, fully stirring for 24 hours, and centrifugally recovering to obtain NiTi-CA-LDHs powder.
By adopting the technical scheme, the NiTi-CA-LDHs powder is added, the proportion is proper, and the pure inorganic coating for the ship has excellent performance and has the performances of soaking resistance, pollution resistance and environmental protection. The NiTi-CA-LDHs powder is prepared by micro emulsion mixed liquid, and then is prepared by ion exchange intercalation capsaicin, so that the NiTi-CA-LDHs powder is used for pure inorganic paint for ships, and the soaking resistance and the antifouling performance of the paint are improved.
Preferably, the pure inorganic coating for the ship comprises the following raw materials in parts by weight: 90 parts of high-purity zinc powder, 9 parts of NiTi-CA-LDHs powder, 15 parts of potassium silicate, 35 parts of lithium silicate, 12 parts of wollastonite powder, 0.006 part of bentonite, 3 parts of zeolite powder, 0.002 part of defoamer and 40 parts of water.
By adopting the technical scheme, the pure inorganic coating for the ship has the advantages of optimal overall performance, soaking resistance, antifouling performance and strong environmental protection performance.
Preferably, the defoamer is diatomaceous earth.
By adopting the technical scheme, diatomite is used as a defoaming agent, so that the pure inorganic coating for the ship has the defoaming effect and can prevent the coating from layering and precipitating.
Preferably, the volume ratio of the fatty alcohol-polyoxyethylene ether to the cyclohexane to the deionized water to the glycerol is 0.8-1mL, 50-60mL, 1-1.5mL and 1.5-1.8mL.
By adopting the technical scheme, the mixed solution B formed by mixing fatty alcohol polyoxyethylene ether, cyclohexane, deionized water and glycerol is a reverse microemulsion solution; the fatty alcohol polyoxyethylene ether is used as an emulsifier, cyclohexane, deionized water and glycerol are used for constructing a solvent system, so that a plurality of micro-emulsion pellets are formed in the reverse micro-emulsion solution, the micro-emulsion pellets provide a growth environment for subsequent NiTi-LDHs, and the growth size of the subsequent NiTi-LDHs is effectively controlled by adjusting the size of the micro-emulsion pellets, so that the prepared NiTi-LDHs is smaller in size and relatively uniform.
Preferably, the mixed solution B, ni (NO 3 ) 2 ·6H 2 O、TiCl 4 、NaNO 3 The mass volume ratio of the solution is 55-60mL, 0.6-0.8g, 0.3-0.5mL and 18-20mL; the NaNO 3 The concentration of the solution is 1.5-1.8 mol-L is; the concentration of the NaOH solution is 2mol/L.
By adopting the technical scheme, the reactants are properly proportioned, and the prepared flaky NiTi-LDHs has regular structure and LDHs structure.
Preferably, the concentration of capsaicin in the capsaicin solution is 0.08mol/L; the mass volume ratio of the capsaicin alkali solution to the NiTi-LDHs powder is 0.5-1L:1-1.5g.
By adopting the technical scheme, capsaicin can be fully inserted into the sheet-shaped NiTi-LDHs sheet layers.
In a second aspect, the present application provides a method for preparing a pure inorganic coating for a ship, comprising the steps of: firstly, according to the formula amount, potassium silicate, lithium silicate, wollastonite powder, bentonite, zeolite powder and water are dispersed and mixed at a high speed of 1500r/min until the fineness of the scraper blade test is less than or equal to 30 mu m, so as to obtain a primary mixed solution; then the rotation speed of the primary mixed solution is reduced to 500r/min, and then high-purity zinc powder and NiTi-CA-LDHs powder are added, and low-speed dispersion and mixing are carried out for 30min at the stirring speed of 500 r/min; the defoamer is divided into two parts, and is added in a high-speed dispersion mixing stage and a low-speed dispersion mixing stage respectively.
By adopting the technical scheme, the prepared pure inorganic coating for the ship is uniform in dispersion and good in stability.
In summary, the present application has the following beneficial effects:
1. the application totally adopts inorganic raw materials to prepare the pure inorganic coating for the ship, does not add organic components, is environment-friendly and has no pollution.
2. In the application, niTi-LDHs powder is preferably adopted in the traditional formula and added into the pure inorganic coating for the ship, so that the soaking resistance and the antifouling property of the pure inorganic coating are enhanced. The prepared NiTi-LDHs powder is introduced with titanium and nickel cations with photocatalysis sterilization function as lamellar cations of LDHs, generates active oxygen species, and utilizes the strong oxidizing function to widely sterilize, thereby enhancing the antifouling performance; the capsaicin is intercalated in NiTi-LDHs, so that the release of the capsaicin can be effectively delayed, the action time is prolonged, and the soaking resistance is improved.
3. The pure inorganic coating for the ship prepared by the preparation method has the advantages of excellent performance, high adhesive force, strong impact resistance, strong soaking resistance, good antifouling performance, the adhesive force test reaches 0 level, the impact resistance test is over 50cm, the soaking resistance test result is 0 level, and the maximum biofouling area for 12 months is only 0.72 percent.
Detailed Description
The present application is described in further detail below with reference to examples.
The raw materials of the examples and comparative examples herein are commercially available in general unless otherwise specified.
Example 1
The pure inorganic coating for the ship comprises the following raw materials in parts by weight: 80 parts of high-purity zinc powder, 8 parts of NiTi-CA-LDHs powder, 10 parts of potassium silicate, 30 parts of lithium silicate, 5 parts of wollastonite powder, 0.005 part of bentonite, 1 part of zeolite powder, 0.001 part of defoamer and 30 parts of water; the defoaming agent is diatomite.
The NiTi-CA-LDHs powder is prepared by the following steps: s1, mixing fatty alcohol polyoxyethylene ether, cyclohexane and deionized water, stirring until the solution is free of agglomerates to obtain a mixed solution A, and slowly dropwise adding glycerol into the mixed solution A until the mixed solution A is stable and transparent to obtain a mixed solution B; s2, adding Ni (NO) into the mixed solution B 3 ) 2 ·6H 2 O and TiCl 4 Stirring for 2h, then dripping NaNO 3 Dropwise adding NaOH solution to adjust the pH to be 10, and stirring at 85 ℃ for reaction for 36h; s3, after the reaction is finished, naturally cooling to room temperature, centrifugally recovering a reaction product, washing the reaction product with deionized water and absolute ethyl alcohol for three times, drying the reaction product at 50 ℃ to constant weight, and grinding the reaction product to obtain NiTi-LDHs powder; s4, mixing and dissolving capsaicin and NaOH in a molar ratio of 1:2 to prepare capsaicin alkali solution, dispersing NiTi-LDHs powder in the capsaicin alkali solution, fully stirring for 24 hours, and centrifugally recovering to obtain NiTi-CA-LDHs powder.
The volume ratio of the fatty alcohol-polyoxyethylene ether to the cyclohexane to the deionized water to the glycerol is 0.8mL:50mL:1mL:1.5mL; the mixed solution B, ni (NO 3 ) 2 ·6H 2 O、TiCl 4 、NaNO 3 The mass-volume ratio of the solution is55mL:0.6g:0.3mL:18mL; the NaNO 3 The concentration of the solution is 1.5mol/L; the concentration of the NaOH solution is 2mol/L; the concentration of capsaicin in the capsaicin solution is 0.08mol/L; the mass volume ratio of the capsaicin alkali solution to the NiTi-LDHs powder is 0.5L to 1g.
Example 2
The pure inorganic coating for the ship comprises the following raw materials in parts by weight: 90 parts of high-purity zinc powder, 9 parts of NiTi-CA-LDHs powder, 15 parts of potassium silicate, 35 parts of lithium silicate, 12 parts of wollastonite powder, 0.006 part of bentonite, 3 parts of zeolite powder, 0.002 part of defoamer and 40 parts of water; the defoaming agent is diatomite.
The NiTi-CA-LDHs powder is prepared by the following steps: s1, mixing fatty alcohol polyoxyethylene ether, cyclohexane and deionized water, stirring until the solution is free of agglomerates to obtain a mixed solution A, and slowly dropwise adding glycerol into the mixed solution A until the mixed solution A is stable and transparent to obtain a mixed solution B; s2, adding Ni (NO 3) into the mixed solution B 2 ·6H 2 O and TiCl 4 Stirring for 2h, then dripping NaNO 3 Dropwise adding NaOH solution to adjust the pH to be 10, and stirring at 90 ℃ for reaction for 36h; s3, after the reaction is finished, naturally cooling to room temperature, centrifugally recovering a reaction product, washing the reaction product with deionized water and absolute ethyl alcohol for three times, drying the reaction product at 50 ℃ to constant weight, and grinding the reaction product to obtain NiTi-LDHs powder; s4, mixing and dissolving capsaicin and NaOH in a molar ratio of 1:2.2 to prepare capsaicin alkali solution, dispersing NiTi-LDHs powder in the capsaicin alkali solution, fully stirring for 24 hours, and centrifugally recovering to obtain NiTi-CA-LDHs powder.
The volume ratio of the fatty alcohol-polyoxyethylene ether to the cyclohexane to the deionized water to the glycerol is 9mL:55mL:1.2mL:1.6mL; the mixed solution B, ni (NO 3 ) 2 ·6H 2 O、TiCl 4 、NaNO 3 The mass volume ratio of the solution is 58mL, 0.7g, 0.4mL and 19mL; the NaNO 3 The concentration of the solution is 1.6mol/L; the concentration of the NaOH solution is 2mol/L; the concentration of capsaicin in the capsaicin solution is 0.08mol/L; the mass volume ratio of the capsaicin alkali solution to the NiTi-LDHs powder is 0.8L to 1.2g.
Example 3
The pure inorganic coating for the ship comprises the following raw materials in parts by weight: 100 parts of high-purity zinc powder, 10 parts of NiTi-CA-LDHs powder, 20 parts of potassium silicate, 40 parts of lithium silicate, 20 parts of wollastonite powder, 0.007 part of bentonite, 5 parts of zeolite powder, 0.003 part of defoamer and 50 parts of water; the defoaming agent is diatomite.
The NiTi-CA-LDHs powder is prepared by the following steps: s1, mixing fatty alcohol polyoxyethylene ether, cyclohexane and deionized water, stirring until the solution is free of agglomerates to obtain a mixed solution A, and slowly dropwise adding glycerol into the mixed solution A until the mixed solution A is stable and transparent to obtain a mixed solution B; s2, adding Ni (NO 3) into the mixed solution B 2 ·6H 2 O and TiCl 4 Stirring for 2h, then dripping NaNO 3 Dropwise adding NaOH solution to adjust the pH to be 10, and stirring at 90 ℃ for reaction for 36h; s3, after the reaction is finished, naturally cooling to room temperature, centrifugally recovering a reaction product, washing the reaction product with deionized water and absolute ethyl alcohol for three times, drying the reaction product at 50 ℃ to constant weight, and grinding the reaction product to obtain NiTi-LDHs powder; s4, mixing and dissolving capsaicin and NaOH in a molar ratio of 1.2:2.5 to prepare capsaicin alkali solution, dispersing NiTi-LDHs powder in the capsaicin alkali solution, fully stirring for 24 hours, and centrifugally recovering to obtain NiTi-CA-LDHs powder.
The volume ratio of the fatty alcohol-polyoxyethylene ether to the cyclohexane to the deionized water to the glycerol is 1mL:60mL:1.5mL:1.8mL; the mixed solution B, ni (NO 3 ) 2 ·6H 2 O、TiCl 4 、NaNO 3 The mass volume ratio of the solution is 60mL:0.8g:0.5mL:20mL; the NaNO 3 The concentration of the solution is 1.8mol/L; the concentration of the NaOH solution is 2mol/L; the concentration of capsaicin in the capsaicin solution is 0.08mol/L; the mass volume ratio of the capsaicin alkali solution to the NiTi-LDHs powder is 1L to 1.5g.
Example 4
The pure inorganic coating for ships described in examples 1 to 3 was prepared by the following method: firstly, according to the formula amount, potassium silicate, lithium silicate, wollastonite powder, bentonite, zeolite powder and water are dispersed and mixed at a high speed of 1500r/min until the fineness of the scraper blade test is less than or equal to 30 mu m, so as to obtain a primary mixed solution; then the rotation speed of the primary mixed solution is reduced to 500r/min, and then high-purity zinc powder and NiTi-CA-LDHs powder are added, and low-speed dispersion and mixing are carried out for 30min at the stirring speed of 500 r/min; the defoamer is divided into two parts, and is added in a high-speed dispersion mixing stage and a low-speed dispersion mixing stage respectively.
Comparative example 1
The same as in example 2, except that: the pure inorganic coating 1 is prepared by using NiTi-LDHs powder and capsaicin to replace the NiTi-CA-LDHs powder according to the preparation method of the pure inorganic coating for ships.
The preparation method of the NiTi-LDHs powder is the same as that of the example 2.
Comparative example 2
The same as in example 2, except that: the pure inorganic coating 2 is prepared by the preparation method of the pure inorganic coating for ships by replacing NiTi-CA-LDHs powder with capsaicin.
Comparative example 3
The same as in example 2, except that: the "NiTi-LDHs powder" is used for replacing the "NiTi-CA-LDHs powder", and the pure inorganic coating 3 is prepared according to the preparation method of the pure inorganic coating for the ship.
The preparation method of the NiTi-LDHs powder is the same as that of the example 2.
Comparative example 4
The same as in example 2, except that: the pure inorganic coating 4 is prepared according to the preparation method of the pure inorganic coating for ships without adding NiTi-CA-LDHs powder.
Performance test
The pure inorganic coating for ships prepared in examples 1-3 and the pure inorganic coating 1-4 prepared in comparative examples 1-4 were subjected to performance test, and specific test methods and standards are as follows:
adhesion testing was performed according to GB/T9286-2021;
the impact resistance is detected according to national standard GB/T1732-2020;
and (3) soaking resistance test: the pure inorganic coating for ships prepared in examples 1-3 and the pure inorganic coating 1-4 prepared in comparative examples 1-4 were coated on steel plates, respectively, and after drying for 7d, the sample was immersed in sea water, typically exposed to air, and after immersing for 12 months, the coating film cracking, air bubbles, rust of the coating film, change in appearance color, etc. were observed and evaluated, and the criteria were evaluated: 0-5, 0 most optimal, 5 worst;
the antifouling performance test was carried out according to GB/T5370-2007, the test site was Shandong Qingdao harbor, and the biofouling area on the hanging plate was observed with 12 months as the test period.
The results are shown in Table 1:
TABLE 1 Performance test
As can be seen from Table 1, the pure inorganic coating for ships prepared in examples 1-3 of the application has excellent performance, high adhesive force, strong impact resistance and strong soaking resistance, has good antifouling performance, the adhesive force test reaches 0 level, the impact resistance test is over 50cm, the soaking resistance test result is 0 level, and the biofouling area of 12 months is only 0.72% at maximum. As can be seen from the examples 2 and 3, the addition of NiTi-CA-LDHs powder can improve the overall performance of the pure inorganic coating for ships, and has the most outstanding performances in soaking resistance and biofouling resistance; it can be seen from the combination of example 2 and comparative example 1, example 2 and comparative example 2, example 2 and comparative example 3, and example 2 and comparative example 4 that, compared with the case that no NiTi-CA-LDHs powder is added, or capsaicin, niTi-LDHs powder is added alone, or capsaicin and NiTi-LDHs powder are added simultaneously, the capsaicin can achieve the optimal effect after intercalation in the NiTi-LDHs powder, wherein capsaicin has the greatest influence on the soaking resistance, and NiTi-LDHs powder has the important influence on the stain resistance. This is probably because the capsaicin can effectively delay the release of the capsaicin after being inserted into the LDHs carrier, prolong the action time and improve the soaking resistance; ni and Ti ions introduced into the NiTi-CA-LDHs powder endow the LDHs with antifouling and antibacterial properties, so that the NiTi-CA-LDHs powder has the dual functions of soaking resistance and antifouling property.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (7)
1. The pure inorganic coating for the ship is characterized by comprising the following raw materials in parts by weight: 80-100 parts of high-purity zinc powder, 8-10 parts of NiTi-CA-LDHs powder, 10-20 parts of potassium silicate, 30-40 parts of lithium silicate, 5-20 parts of wollastonite powder, 0.005-0.007 part of bentonite, 1-5 parts of zeolite powder, 0.001-0.003 part of defoamer and 30-50 parts of water;
the NiTi-CA-LDHs powder is prepared by the following steps: s1, mixing fatty alcohol polyoxyethylene ether, cyclohexane and deionized water, stirring until the solution is free of agglomerates to obtain a mixed solution A, and slowly dropwise adding glycerol into the mixed solution A until the mixed solution A is stable and transparent to obtain a mixed solution B; s2, adding Ni (NO) into the mixed solution B 3 ) 2 ·6H 2 O and TiCl 4 Stirring for 2h, then dripping NaNO 3 Dropwise adding NaOH solution to adjust the pH to be 10, and stirring at 85-90 ℃ for reaction for 36h; s3, after the reaction is finished, naturally cooling to room temperature, centrifugally recovering a reaction product, washing the reaction product with deionized water and absolute ethyl alcohol for three times, drying the reaction product at 50 ℃ to constant weight, and grinding the reaction product to obtain NiTi-LDHs powder; s4, mixing and dissolving capsaicin and NaOH in a molar ratio of 1-1.2:2-2.5 to prepare capsaicin alkali solution, dispersing NiTi-LDHs powder in the capsaicin alkali solution, fully stirring for 24 hours, and centrifugally recovering to obtain the capsaicin intercalated NiTi-LDHs powder, namely NiTi-CA-LDHs powder.
2. The pure inorganic coating for ships according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 90 parts of high-purity zinc powder, 9 parts of NiTi-CA-LDHs powder, 15 parts of potassium silicate, 35 parts of lithium silicate, 12 parts of wollastonite powder, 0.006 part of bentonite, 3 parts of zeolite powder, 0.002 part of defoamer and 40 parts of water.
3. A pure inorganic coating for ships according to claim 1 or 2, characterized in that the defoamer is diatomaceous earth.
4. The pure inorganic coating for ships according to claim 3, wherein the volume ratio of the fatty alcohol-polyoxyethylene ether, cyclohexane, deionized water and glycerol is 0.8-1mL:50-60mL:1-1.5mL:1.5-1.8mL.
5. The pure inorganic paint for ship according to claim 4, wherein the mixed solution B, ni (NO 3 ) 2 ·6H 2 O、TiCl 4 、NaNO 3 The mass volume ratio of the solution is 55-60mL, 0.6-0.8g, 0.3-0.5mL and 18-20mL; the NaNO 3 The concentration of the solution is 1.5-1.8mol/L; the concentration of the NaOH solution is 2mol/L.
6. The pure inorganic coating for ships according to claim 5, wherein the concentration of capsaicin in the capsaicin solution is 0.08mol/L; the mass volume ratio of the capsaicin alkali solution to the NiTi-LDHs powder is 0.5-1L:1-1.5g.
7. A method for preparing a pure inorganic coating for ships according to any one of claims 1 to 6, comprising the steps of: firstly, according to the formula amount, potassium silicate, lithium silicate, wollastonite powder, bentonite, zeolite powder and water are dispersed and mixed at a high speed of 1500r/min until the fineness of the scraper blade test is less than or equal to 30 mu m, so as to obtain a primary mixed solution; then the rotation speed of the primary mixed solution is reduced to 500r/min, and then high-purity zinc powder and NiTi-CA-LDHs powder are added, and low-speed dispersion and mixing are carried out for 30min at the stirring speed of 500 r/min; the defoamer is divided into two parts and is added in a high-speed dispersion mixing stage and a low-speed dispersion mixing stage respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476403.9A CN117186676B (en) | 2023-11-08 | 2023-11-08 | Pure inorganic coating for ship and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476403.9A CN117186676B (en) | 2023-11-08 | 2023-11-08 | Pure inorganic coating for ship and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117186676A CN117186676A (en) | 2023-12-08 |
| CN117186676B true CN117186676B (en) | 2024-01-26 |
Family
ID=88987322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311476403.9A Active CN117186676B (en) | 2023-11-08 | 2023-11-08 | Pure inorganic coating for ship and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117186676B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140704A (en) * | 2014-07-28 | 2014-11-12 | 中国船舶重工集团公司第七二五研究所 | Anti-fouling molecule intercalation hydrotalcite composite material and preparing method thereof |
| CN107365517A (en) * | 2017-08-24 | 2017-11-21 | 珠海市盟友化工有限公司 | Aqueous inorganic zinc-rich anti-corrosive paint and preparation method thereof |
| CN108587262A (en) * | 2018-05-30 | 2018-09-28 | 中国科学院宁波材料技术与工程研究所 | A kind of anti-corrosion anti-fouling coating and preparation method thereof |
-
2023
- 2023-11-08 CN CN202311476403.9A patent/CN117186676B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140704A (en) * | 2014-07-28 | 2014-11-12 | 中国船舶重工集团公司第七二五研究所 | Anti-fouling molecule intercalation hydrotalcite composite material and preparing method thereof |
| CN107365517A (en) * | 2017-08-24 | 2017-11-21 | 珠海市盟友化工有限公司 | Aqueous inorganic zinc-rich anti-corrosive paint and preparation method thereof |
| CN108587262A (en) * | 2018-05-30 | 2018-09-28 | 中国科学院宁波材料技术与工程研究所 | A kind of anti-corrosion anti-fouling coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| NiTi-Layered double hydroxides nanosheets as efficient photocatalysts for oxygen evolution from water using visible Light;Yufei Zhao etal.;Chemical Science;第5卷(第3期);第951-958页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117186676A (en) | 2023-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103122187B (en) | ionic liquid modified marine antifouling paint | |
| JP6797442B2 (en) | Method for preparing main chain decomposition type zinc polyacrylate resin prepared by the monomer method | |
| CN106986969B (en) | Main chain degradable copper polyacrylate resin and preparation method and application thereof | |
| WO2015010390A1 (en) | Preparation method and application of main chain scission-type polyacrylic silane ester resin | |
| CN103289007A (en) | Improved preparation method for zinc/copper acrylate resin | |
| CN109517516B (en) | Certified bentonite modified waterborne polyurethane coating and preparation method thereof | |
| CN104761991A (en) | Environmental-protection type multi-element collaborative marine anti-fouling coating | |
| CN110358396A (en) | A kind of long-acting controlled release marine antifouling coating | |
| CN106977659A (en) | Main chain degradation-type polyacrylic acid zinc resin and its method and application that after a kind of prepared by grafting method | |
| CN117186676B (en) | Pure inorganic coating for ship and preparation method thereof | |
| CN110591535A (en) | Antifouling waterborne polyurethane coating for ships | |
| CN113214434B (en) | Preparation of core-shell acrylic acid antifouling resin and application of core-shell acrylic acid antifouling resin in copper-free antifouling paint | |
| CN101260262B (en) | Antifouling material capable of forming concave-convex micro-structure surface and preparation method thereof | |
| CN112574631B (en) | Novel marine antifouling paint composition based on nano microcapsule controlled release technology | |
| CN106833024B (en) | Core-shell structure modified silicon dioxide coated cuprous oxide and preparation method thereof | |
| CN102532397A (en) | Resin for low surface energy organic fluorine silicone antifouling coating, and preparation process thereof | |
| CN110204993B (en) | Preparation method and application of carbon nanotube assembled capsaicin repellent biological antifouling marine paint | |
| CN110157258B (en) | Piezoelectric/electromagnetic hybrid drive antifouling coating material and preparation method thereof | |
| CN111635374A (en) | Structure and preparation method of acrylic resin containing benzisothiazolinone formamide functional monomer | |
| CN109554089A (en) | A kind of bi-component antifouling paint | |
| CN102051101B (en) | Method for preparing normal temperature-cured anti-fouling anti-drag hydrogel soft coating | |
| KR101534315B1 (en) | And a method of manufacturing an antifouling paint | |
| CN101831232B (en) | Rare earth compound epoxy zinc-rich paint for preventing microorganism attachment and preparation method thereof | |
| CN105255291A (en) | Poly(ionic liquid) broad-spectrum antifouling compound containing environment-friendly marine antifouling coating and preparation process thereof | |
| CN112745731A (en) | Hyperbranched polymer-containing waterborne antifouling composite coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |