CN117430985A - Colloidal fluorescent material, preparation method thereof, coating and thickness detection coating for injury detection - Google Patents
Colloidal fluorescent material, preparation method thereof, coating and thickness detection coating for injury detection Download PDFInfo
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- CN117430985A CN117430985A CN202311608201.5A CN202311608201A CN117430985A CN 117430985 A CN117430985 A CN 117430985A CN 202311608201 A CN202311608201 A CN 202311608201A CN 117430985 A CN117430985 A CN 117430985A
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- 238000000576 coating method Methods 0.000 title claims abstract description 182
- 239000011248 coating agent Substances 0.000 title claims abstract description 176
- 239000000463 material Substances 0.000 title claims abstract description 110
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 title description 21
- 230000006378 damage Effects 0.000 title description 7
- 208000014674 injury Diseases 0.000 title description 4
- VJCJAQSLASCYAW-UHFFFAOYSA-N azane;dodecanoic acid Chemical compound [NH4+].CCCCCCCCCCCC([O-])=O VJCJAQSLASCYAW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims description 36
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- 239000003973 paint Substances 0.000 claims description 24
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- 238000000034 method Methods 0.000 claims description 15
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- 238000001035 drying Methods 0.000 claims description 10
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- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
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- 229910052618 mica group Inorganic materials 0.000 description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 3
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 3
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
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- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
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- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
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- 239000005011 phenolic resin Substances 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
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- 229920000728 polyester Polymers 0.000 description 1
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Classifications
-
- 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
- C09D5/22—Luminous 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
Abstract
The invention belongs to the field of chemical anti-corrosion coating, and provides a gelatinous fluorescent material, a preparation method thereof, a coating and a thickness detection coating, wherein the gelatinous fluorescent material is obtained by modifying ammonium laurate; for the phenomenon of different fluorescence intensity of the coating, the thickness of the coating can be rapidly distinguished, the working time that a technician can test the thickness of the coating after the coating is cured is obviously shortened, the construction efficiency is greatly improved, and the construction quality is ensured.
Description
Technical Field
The invention relates to the field of chemical anti-corrosion coating, in particular to a colloidal fluorescent material, a preparation method thereof, a coating and a wound-detecting thickness-detecting coating.
Background
The paint is a chemical mixture material which can be coated on the surface of an object through different construction processes, can be firmly covered on the surface of the object, plays roles of protection, decoration, marking and other special purposes, and can be divided into decorative paint, anticorrosive paint, fireproof paint, waterproof paint and the like according to different application requirements.
The coating can meet the expected construction requirements, on one hand, the components such as resin of the coating are required to be selected, and on the other hand, the construction quality of the coating is required to be strictly controlled. In order to further reduce the influence of factors such as air holes, shrinkage holes, bubbles, unqualified film thickness and the like on the coating performance in the coating construction process, special technicians are required to carefully check the surface problem of the coating in the construction process, repair is confirmed to be completed before the surface of the coating is dried, otherwise, the repair part has the problems of inconsistent stress, insufficient bonding strength, easy permeation and the like. Especially for under-color and paint colors, which are not very different or in dim environments, the inspection process requires a high concentration of inspection personnel, which is time-consuming and labor-consuming.
Therefore, how to rapidly detect the damage and thickness of the coating and avoid the adverse effect of the fluorescent material on the performance of the coating becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a gelatinous fluorescent material, a preparation method thereof, a coating and a wound-detecting thickness-detecting coating. When the colloidal fluorescent material provided by the invention is used for preparing a coating from the coating, defects of the coating can be rapidly detected, the thickness of the coating can be rapidly evaluated, and the adhesive force and hardness of the prepared coating are not influenced.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a gelatinous fluorescent material, which comprises the following steps:
mixing ammonium dodecanoate, ethanol and a fluorescent material, and drying to obtain a colloidal fluorescent material;
the mass ratio of the ammonium dodecanoate to the ethanol is 1: (3-15);
the mass ratio of the ammonium dodecanoate to the fluorescent material is 1: (0.5-3).
Preferably the fluorescent material comprises an ultraviolet light-induced fluorescent powder material or an energy-storing luminous powder material.
The invention also provides the colloidal fluorescent material prepared by the method.
The invention also provides a coating for the wound-detecting thickness-detecting coating, which comprises the colloidal fluorescent material.
Preferably, the addition amount of the colloidal fluorescent material in the paint is 0.5-3% by mass.
Preferably, the coating is one of a solvent-free coating, a solvent-based coating and a powder coating.
Preferably, the solvent-free coating comprises an A component and a B component which are independently packaged:
the component A comprises the following components in parts by mass: 37-100 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 40-95 parts of filler and 0.6-4 parts of viscosity regulator;
the component B comprises the following components in parts by weight: 95-99 parts of curing agent or initiator and 1-5 parts of viscosity regulator;
the mass ratio of the component A to the component B is (3-25): 1.
preferably, the solvent-based paint comprises the following components in parts by weight:
30-82 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 30-100 parts of filler, 13.6-50 parts of solvent, 1-2 parts of defoamer, 1-5 parts of film forming auxiliary agent, 1-5 parts of dispersing agent and 1-5 parts of viscosity regulator.
Preferably, the powder coating comprises the following components in parts by weight:
20-80 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 20-30 parts of cured resin material, 36.1-84 parts of filler, 0.5-2 parts of flatting agent, 0.5-2 parts of defoaming agent and 0.5-1 part of benzoin.
The invention also provides a wound-detecting thickness-detecting coating which is prepared from the coating.
The invention provides a preparation method of a gelatinous fluorescent material, which comprises the steps of mixing ammonium dodecanoate, ethanol and the fluorescent material, and drying to obtain the gelatinous fluorescent material. According to the invention, ammonium laurate is adopted to modify the fluorescent material to obtain a colloidal fluorescent material, so that the colloidal fluorescent material can be dispersed in the resin in a nano level when being used in the coating, the dosage of the fluorescent material in the coating is reduced, the prepared coating has good fluorescent performance, when the coating is leveled into a coating after being coated, dark spots on the surface of the coating can be rapidly observed by exciting the fluorescent characteristic of the coating, and the dark spots are defects such as air holes, air bubbles, shrinkage cavities, scratches, coating leakage and the like generated in the coating process of workers; for the phenomenon of different fluorescence intensity of the coating, the thickness of the coating can be rapidly distinguished, the working time that a technician can test the thickness of the coating after the coating is cured is obviously shortened, the construction efficiency is greatly improved, and the construction quality is ensured; the colloidal fluorescent material has small addition amount, and the macromolecular long chains contained in the modified colloidal fluorescent material are easy to intertwine with the matrix resin molecular chains, so that the nano-level dispersion effect is more easy to achieve in the shearing and dispersing process of the coating, and the adhesive force and the hardness of the prepared coating are not influenced basically. The example results show that when the coating prepared from the colloidal fluorescent material provided by the invention is used for coating, the coating can be rapidly inspected for damage, the thickness is inspected, the manual detection and repair time is avoided, and the construction efficiency is improved by more than 40%; the liquid coating can be inspected for injury and thickness before being cured, so that the curing time is saved; has no influence on the adhesive force and hardness of the coating.
Drawings
FIG. 1 is a schematic view of a wound-detecting thick coating prepared in example 3 in an activated fluorescent state;
FIG. 2 is a chart showing the thickness of the coating in activated fluorescence, obtained in example 8;
FIG. 3 is a chart showing the thickness of the thickness-detecting coating of the wound-detecting coating prepared in example 8 in the activated fluorescent state.
Detailed Description
The invention provides a preparation method of a gelatinous fluorescent material, which comprises the following steps:
mixing ammonium dodecanoate, ethanol and a fluorescent material, and drying to obtain a colloidal fluorescent material;
the mass ratio of the ammonium dodecanoate to the ethanol is 1: (3-15);
the mass ratio of the ammonium dodecanoate to the fluorescent material is 1:0.5 to 3.
In the invention, the mass ratio of the ammonium dodecanoate to the ethanol is 1: (3-15), preferably 1: (6 to 12), more preferably 1:9. the invention ensures that the ammonium laurate is completely dissolved in the ethanol by limiting the mass ratio of the ammonium laurate to the ethanol, thereby obtaining better dispersity.
In the invention, the mass ratio of the ammonium dodecanoate to the fluorescent material is 1: (0.5 to 3), preferably 1: (1-2). The invention ensures that the ammonium dodecanoate can be uniformly bonded in the fluorescent material in the high-temperature desolvation process by limiting the mass ratio of the ammonium dodecanoate to the fluorescent material.
In the present invention, the fluorescent material preferably includes an ultraviolet light-induced fluorescent powder material or an energy-storing luminous powder material.
In the present invention, the mixture of ammonium dodecanoate, ethanol and fluorescent material is preferably: ammonium laurate was dissolved in ethanol and fluorescent material was added.
In the present invention, the mixing is preferably grinding after stirring. In the present invention, the time for the grinding is preferably 10 to 30 minutes. The invention forms slurry by grinding the mixed ammonium dodecanoate, ethanol and fluorescent material.
The grinding apparatus is not particularly limited, and any grinding apparatus known in the art may be used. In the present invention, the grinding apparatus is preferably a grinder.
In the present invention, the drying temperature is preferably 120 to 180℃and the drying time is preferably 2 to 5 hours. The invention ensures that the colloidal fluorescent material is prepared by limiting the drying temperature and time.
The drying apparatus is not particularly limited, and a drying apparatus well known in the art may be used. In the present invention, the drying apparatus is preferably an oven.
According to the invention, the ammonium laurate is used for modifying the fluorescent material, so that the prepared colloidal fluorescent material can achieve nano-scale dispersion in the resin, and meanwhile, the ammonium laurate has excellent acid and alkali corrosion resistance and water resistance, so that the performance of the modified colloidal fluorescent material is enhanced.
The invention also provides the colloidal fluorescent material prepared by the preparation method of the technical scheme.
The invention also provides a coating for the wound-detecting thickness-detecting coating, which comprises the colloidal fluorescent material.
In the present invention, the amount of the colloidal fluorescent material added to the paint is preferably 0.5 to 3% by mass, more preferably 1 to 2% by mass. The invention ensures the optimal fluorescence effect by limiting the addition amount of the colloidal fluorescent material.
In the present invention, the paint preferably includes one of a solvent-free paint, a solvent-based paint, and a powder paint.
In one embodiment of the present invention, the solvent-free coating preferably comprises a separate package of a component and a component B.
In the present invention, the a component preferably comprises, in parts by mass: 37-100 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 40-95 parts of filler and 0.6-4 parts of viscosity regulator;
in the present invention, the B component preferably comprises, in parts by mass: 95-99 parts of curing agent or initiator and 1-5 parts of viscosity modifier.
In the invention, the mass ratio of the component A to the component B is preferably 3-25: 1. the invention ensures the best comprehensive performance of the prepared coating by limiting the mass ratio of the component A to the component B.
In the present invention, the a component preferably includes 37 to 100 parts by mass of a film-forming resin, more preferably 60 to 80 parts by mass. In the present invention, the film-forming resin functions to bind the filler together.
In the present invention, the film-forming resin is preferably one or more of epoxy resin, vinyl resin, polyurethane, natural resin, phenolic resin, alkyd resin, amino resin, nitro resin, acrylate resin, acrylic emulsion, silicone resin and fluorocarbon resin.
In the present invention, the a component preferably includes 1 to 2.4 parts by mass, more preferably 2 parts by mass, of the colloidal fluorescent material. In the invention, the colloidal fluorescent material has good dispersibility in the coating, and can achieve nano-scale dispersion in the resin when used in the coating.
In the present invention, the A component preferably comprises 40 to 95 parts by mass of filler, more preferably 50 to 70 parts by mass. In the invention, the filler has the functions of filling, improving the solid content, reducing the dosage of resin and solvent and enhancing the hardness and wear resistance of the coating.
In the invention, the filler is preferably one or more of glass flake powder, barium sulfate, silicon micropowder, mica powder, graphite, titanium dioxide, clay, calcium carbonate, glass powder, glass fiber powder and wollastonite.
In the present invention, the A component preferably comprises 0.6 to 4 parts by mass of the viscosity modifier, more preferably 1 part by mass. The invention adjusts the viscosity of the coating by adding a viscosity modifier.
In the present invention, the viscosity modifier is preferably one or two of bentonite, hydroxypropyl cellulose and fumed silica.
In the present invention, the B component preferably includes 95 to 99 parts by mass of a curing agent or initiator. In the present invention, the curing agent or initiator functions to enhance or control the curing reaction.
In the present invention, the curing agent is preferably one of an amine curing agent and an acid anhydride curing agent.
In the present invention, the initiator is preferably one or more of carboxyl terminated polyester, polyether polyol, isocyanate, organic peroxide, inorganic peroxide, azo compound and epoxy compound.
In the present invention, the B component preferably includes 95 to 99 parts of a viscosity modifier. In the present invention, the kind of the viscosity modifier is preferably the same as that of the A-component, and will not be described herein.
In another solvent-based paint technical scheme of the invention, the paint preferably comprises, by mass, 30-82 parts of film-forming resin, 1-2.4 parts of colloidal fluorescent material, 30-100 parts of filler, 13.6-50 parts of solvent, 1-2 parts of defoamer, 1-5 parts of film-forming auxiliary agent, 1-5 parts of dispersing agent and 1-5 parts of viscosity regulator.
In the present invention, the types of the film-forming resin, the filler and the viscosity modifier in the coating are preferably the same as the types of the corresponding components in the component a in the above technical scheme, and are not described herein.
In the present invention, the a component preferably includes 30 to 82 parts by mass, more preferably 50 to 70 parts by mass of a film-forming resin. In the present invention, the film-forming resin functions to bind the filler together.
In the present invention, the a component preferably includes 1 to 2.4 parts by mass, more preferably 2 parts by mass, of the colloidal fluorescent material. In the invention, the colloidal fluorescent material has good dispersibility in the coating, and can achieve nano-scale dispersion in the resin when used in the coating.
In the present invention, the A component preferably comprises 30 to 100 parts by mass of filler, more preferably 50 to 70 parts by mass. In the invention, the filler has the functions of filling, improving the solid content, reducing the dosage of resin and solvent and enhancing the hardness and wear resistance of the coating.
In the present invention, the A component preferably comprises 1 to 5 parts by mass of the viscosity modifier, more preferably 1 part by mass. The invention adjusts the viscosity of the coating by adding a viscosity modifier.
In the present invention, the solvent is 13.6 to 50 parts by mass, more preferably 20 to 30 parts by mass. In the present invention, the above-mentioned parts of the solvent are used to thoroughly mix the raw materials.
In the present invention, the solvent is preferably one or more of water, toluene, xylene, dimethyl sulfoxide, acetone, methyl ethyl ketone, cyclohexanone, methylene chloride, turpentine, ethyl acetate, butyl acetate, gasoline, ethanol and butanol.
In the present invention, the paint preferably includes 1 to 2 parts by mass of an antifoaming agent. The present invention reduces air bubbles in the coating by limiting the fraction of defoamer.
In the present invention, the antifoaming agent is preferably a silicone antifoaming agent, more preferably an XP102 silicone antifoaming agent.
In the present invention, the coating material preferably includes 1 to 5 parts by mass of a film-forming auxiliary agent.
In the present invention, the film forming aid is preferably dodecanol ester.
In the present invention, the paint preferably includes 1 to 5 parts by mass of a dispersant.
In the present invention, the dispersant is preferably sodium hexametaphosphate.
In another powder coating technical scheme of the invention, the coating preferably comprises, by mass, 20-80 parts of film-forming resin, 1-2.4 parts of colloidal fluorescent material, 20-30 parts of cured resin material, 36.1-84 parts of filler, 0.5-2 parts of leveling agent, 0.5-2 parts of defoaming agent and 0.5-1 part of benzoin.
In the present invention, the types of the film-forming resin and the filler in the coating are preferably the same as those of the component a in the above technical scheme, and will not be described herein.
In the present invention, the coating material preferably comprises 20 to 80 parts by mass of the film-forming resin, more preferably 40 to 70 parts by mass.
In the present invention, the paint preferably includes 1 to 2.4 parts by mass, more preferably 2 parts by mass of the colloidal fluorescent material.
In the present invention, the coating material preferably includes 20 to 30 parts by mass of the cured resin material, more preferably 25 parts by mass. The present invention achieves the necessary coating properties by limiting the fraction of cured resin material.
The cured resin material of the present invention is not particularly limited, and a cured resin system well known in the art may be used.
In the present invention, the coating preferably includes 36.1 to 84 parts by mass of filler, more preferably 50 parts by mass.
In the present invention, the paint preferably includes 0.5 to 2 parts by mass of a leveling agent. The invention obtains the required coating surface effect by limiting the parts of the leveling agent.
In the invention, the leveling agent is preferably an acrylic leveling agent, more preferably an acrylic leveling agent GLP588.
In the present invention, the paint preferably includes 0.5 to 2 parts by mass of an antifoaming agent. The bubble generated in the process of melting and leveling the coating is added by limiting the part of the defoaming agent.
In the present invention, the antifoaming agent is preferably a silicone-based antifoaming agent, more preferably an XP102 silicone antifoaming agent.
In the present invention, the paint preferably includes 0.5 to 1 part of benzoin. The invention eliminates defects of pinholes on the surface of the coating by limiting the part of benzoin and using the defoamer in a matching way.
The preparation method of the coating is not particularly limited, and the components are uniformly mixed by adopting a technical scheme of material mixing which is well known to a person skilled in the art.
According to the invention, the colloidal fluorescent material modified by ammonium laurate is added into the coating, so that the colloidal fluorescent material can be dispersed in the resin in a nano level, and is free from color development in the normal use process and is free from difference with a coating without the fluorescent material when being used for the coating, and dark spots on the surface of the coating can be rapidly observed by exciting the fluorescent characteristic of the coating in the leveling process after the coating is coated, wherein the dark spots are defects such as air holes, air bubbles, shrinkage cavities, scratches, missing coating and the like generated in the coating process of workers; meanwhile, for places with different fluorescence intensity of the coating, for thinner places, the fluorescence layer is weaker, and then the thickness of the coating can be rapidly separated, so that the work of randomly taking a scale to test the film thickness by technicians is obviously shortened, the construction efficiency is greatly improved, and the construction quality is ensured.
The invention also provides a wound-detecting thickness-detecting coating which is prepared from the coating according to the technical scheme.
The preparation method of the wound-detecting thickness-detecting coating is not particularly limited, and the preparation method is well known.
The flaw detection and thickness detection coating provided by the invention can be used for rapidly detecting flaws and detecting thickness, so that the manual detection and repair time is avoided, and the construction efficiency is improved by more than 40%; the liquid coating can be inspected for injury and thickness before being cured, so that the curing time is saved; has no influence on the adhesive force and hardness of the coating.
The present invention is described in detail below in conjunction with examples for further illustrating the invention, but they should not be construed as limiting the scope of the invention.
Example 1
The preparation method of the colloidal fluorescent material comprises the following steps of: 1 part of ammonium dodecanoate is dissolved in 9 parts of ethanol, then 1.5 parts of energy-storage noctilucent powder fluorescent material is added, mixed and stirred uniformly, the mixture is put into a grinder to be ground for 30min to obtain a slurry-shaped mixture, and then the slurry-shaped mixture is put into an oven and dried for 2h at 150 ℃ to obtain the gelatinous fluorescent material.
Example 2
The solvent paint for the wound-detecting thickness-detecting coating adopts the gelatinous fluorescent material in the embodiment 1, and comprises the following raw materials in parts by mass: 45 parts of acrylic emulsion, 2 parts of colloidal fluorescent material, 15 parts of titanium dioxide, 14 parts of water, 17.3 parts of clay, 1.5 parts of sodium hexametaphosphate, 1 part of XP102 organosilicon defoamer, 3 parts of dodecanol ester and 1.2 parts of hydroxypropyl cellulose.
The preparation method comprises the following steps:
mixing water, sodium hexametaphosphate, hydroxypropyl cellulose and dodecanol ester, stirring by a high-speed dispersing machine at 500r/min until the mixture is completely dissolved, then adding a colloidal fluorescent material and titanium dioxide, stirring for 30min at 1000r/min, reducing the rotating speed to 400r/min, slowly adding an acrylic emulsion, stirring uniformly, and then sieving with a 200-mesh filter screen to obtain the coating.
Example 3
A wound-detecting thickness-detecting coating:
the coating material of example 2 was applied to a metal plate surface to a film thickness of about 600. Mu.m, and cured at room temperature for 7 days.
Example 4
The preparation method of the colloidal fluorescent material comprises the following steps of: 1 part of ammonium laurate is dissolved in 9 parts of ethanol, 2 parts of ultraviolet light-induced fluorescent material are added, mixed and stirred uniformly, the mixture is put into a grinder to be ground for 20min to obtain a slurry-shaped mixture, and then the slurry-shaped mixture is put into an oven to be dried for 3h at 150 ℃ to obtain the colloidal fluorescent material.
Example 5
A solvent-free coating for detecting wounds and thickness of a coating adopts a gelatinous fluorescent material in the embodiment 4, and consists of an A component and a B component which are independently packaged, wherein the mass ratio of the A component to the B component is 22:1, the component A consists of the following raw materials in parts by weight:
bisphenol a epoxy resin E51:42 parts of colloidal fluorescent material 2 parts, mica powder 20 parts, silica micropowder 20 parts and glass flake powder 15 parts ， 1 part of fumed silica;
the component B consists of the following raw materials in parts by weight: 60 parts of triethylenetetramine, 37 parts of ethylenediamine and 3 parts of fumed silica.
The preparation method comprises the following steps:
and (3) a component A: mixing bisphenol A epoxy resin and aerosil, dispersing for 5min by a high-speed dispersing machine at 1000r/min, adding colloidal fluorescent material, dispersing for 5min, sequentially adding silicon micropowder, mica powder and glass flake powder at 1000r/min, and stirring for 30min for later use.
And the component B comprises the following components: mixing triethylenetetramine, ethylenediamine and fumed silica, rapidly dispersing for 5min with a high-speed dispersing machine, and bottling.
Example 6
A wound-detecting thickness-detecting coating: the coating in example 5 was uniformly mixed and then applied to a metal plate surface with a film thickness of about 600um, and cured at room temperature for 7 days, and tested.
Example 7
A two-layer coating for a wound-detecting thickness-detecting coating, the primer adopting the solvent-free coating of example 5; the top coating differs from the bottom coating in that it does not contain a colloidal fluorescent material, otherwise is the same as the bottom coating.
The preparation method comprises the following steps: the same as in example 5.
Example 8
The coating for detecting the damage and the thickness is prepared by uniformly mixing the primer in the embodiment 7, coating the primer on a metal plate surface, setting the film thickness to be about 400 mu m, coating the surface layer coating in the embodiment 7 after the primer is placed for 6 to 12 hours, and curing the primer at room temperature for 7 days, wherein the film thickness is 300 mu m, so as to prepare the double-layer coating to be tested.
Example 9
The powder coating for the wound-detecting thickness-detecting coating adopts the gelatinous fluorescent material in the example 1, and comprises the following raw materials in parts by mass: bisphenol A epoxy resin (E-12): 27 parts of colloidal fluorescent material 2 parts, 27 parts of polyester resin (Zhongzheng 5086A), 21 parts of titanium dioxide, 20 parts of barium sulfate, 5881.5 parts of acrylic leveling agent GLP, 1 part of XP102 organosilicon defoamer and 0.5 part of benzoin.
The preparation method comprises the following steps:
the raw materials are melted and extruded by a double screw extruder, and the extrusion process comprises the following steps: first zone temperature 110 ℃, second zone temperature: the extrusion frequency was 40Hz at 85 ℃. Cooling after extrusion tabletting, placing in a small steel mill, grinding, and sieving with a 160-mesh sieve to obtain the coating.
Example 10
A wound-detecting thickness-detecting coating: the coating of example 9 was applied by electrostatic spraying to a standard tinplate, transferred to an oven, baked at 200℃for 15min, film thickness controlled at 80. Mu.m, and cooled.
Comparative example 1
Comparative example 1 was different from example 6 in that no colloidal fluorescent material was added to the paint, and the other was the same as in example 6.
1) Adhesion test
Evaluation and acceptance criteria for adhesion/cohesion (breaking strength) of corrosion protection coatings for steel structures with reference to the national standard GB/T31586.1-2015 protective coating system part 1: pulling out the hair. The test results are shown in Table 1.
2) Shore hardness test
Reference is made to part 1 of the national standard GB/T531.1-2008 method for testing indentation hardness of vulcanized rubber or thermoplastic rubber: shore durometer (shore hardness). The test results are shown in Table 1.
Table 1 adhesion and shore hardness of the coatings prepared in example 6 and comparative example 1
| Example 6 | Comparative example 1 | |
| Adhesive force (MPa) | 28.0 | 28.3 |
| Shore hardness (D) | 87 | 87 |
As can be seen from Table 1, the coating prepared by adding the colloidal fluorescent material in example 6 of the present invention has substantially the same properties as the coating without adding the fluorescent material in comparative example 1.
3) Fluorescence test
The coatings of example 6, example 8 (primer coating) and example 10 were placed in a matt or low light environment and irradiated with ultraviolet light to exhibit bright fluorescence.
The coating of example 3 was placed under an intense light source for 5min and then rapidly transferred to a no-light or low-light environment, the coating exhibiting significant fluorescence.
FIG. 1 is a schematic diagram of the thickness-detecting coating of the sample prepared in example 3 in the activated fluorescence state, as shown in the following: dark spots on the surface of the coating can be observed rapidly, and the dark spots are defects of air holes, air bubbles, shrinkage cavities, scratches, missing coating and the like generated in the coating process of workers, so that the manual detection repair time can be avoided, the curing waiting time is avoided, and the construction efficiency is improved by more than 40%.
FIG. 2 is a chart of the thickness of the coating in the activated fluorescence state, as shown in the drawing, the primer can be quickly a defect of the coating by a dark spot for the double-layer coating; after the surface of the bottom coating is dried, the surface coating is coated, and the surface coating does not contain fluorescent materials, so that the surface coating can be ensured to completely cover the fluorescent coating after being coated, fluorescent components are excited again, and the places with bright spots are defects of the coating, and the complete darkness indicates that the surface coating is qualified.
FIG. 3 is a chart showing the thickness of the thickness-detecting coating of the wound-detecting coating prepared in example 8 in the activated fluorescence state, as shown in the following: the minimum film thickness of the surface layer coating prepared by the method can realize complete light-tightness when the minimum film thickness is 50 mu m, so that fluorescence can appear when the surface layer coating is lower than 50 mu m, the repair can be carried out, the working time that a technician can test the film thickness after the coating is cured is obviously shortened, the construction efficiency is greatly improved, and the construction quality is ensured.
From the above examples and comparative examples, it can be seen that the colloidal fluorescent material provided by the invention is used in a coating, and when the coating is leveled into a coating after coating, dark spots on the surface of the coating can be rapidly observed by exciting fluorescent properties thereof; meanwhile, for the double-layer coating, complete light-tightness can be realized when the minimum film thickness of the surface layer coating is 50 mu m, so that fluorescence can appear when the surface layer coating is lower than 50 mu m, repair can be carried out, the working time that a technician can test the film thickness after the coating is cured is obviously shortened, the construction efficiency is greatly improved, and the construction quality is ensured. The method comprises the steps of carrying out a first treatment on the surface of the The addition amount of the colloidal fluorescent material is only 0.5-3%, and the colloidal fluorescent material has no influence on the performance of the coating.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A preparation method of a colloidal fluorescent material comprises the following steps:
mixing ammonium dodecanoate, ethanol and a fluorescent material, and drying to obtain a colloidal fluorescent material;
the mass ratio of the ammonium dodecanoate to the ethanol is 1: (3-15);
the mass ratio of the ammonium dodecanoate to the fluorescent material is 1: (0.5-3).
2. The method of claim 1, wherein the fluorescent material comprises an ultraviolet light-emitting phosphor material or an energy-storing luminescent powder material.
3. A colloidal fluorescent material produced by the production method of claim 1 or 2.
4. A coating for a wound-detecting thickness-detecting coating, characterized in that the coating comprises the colloidal fluorescent material according to claim 3.
5. The paint according to claim 4, wherein the colloidal fluorescent material is added in an amount of 0.5 to 3% by mass.
6. The coating of claim 4 or 5, wherein the coating is one of a solvent-free coating, a solvent-based coating, and a powder coating.
7. The coating of claim 6, wherein the solvent-free coating comprises separate packages of a and B components:
the component A comprises the following components in parts by mass: 37-100 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 40-95 parts of filler and 0.6-4 parts of viscosity regulator;
the component B comprises the following components in parts by weight: 95-99 parts of curing agent or initiator and 1-5 parts of viscosity regulator;
the mass ratio of the component A to the component B is (3-25): 1.
8. the coating according to claim 6, wherein the solvent-based coating comprises the following components in parts by mass:
30-82 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 30-100 parts of filler, 13.6-50 parts of solvent, 1-2 parts of defoamer, 1-5 parts of film forming auxiliary agent, 1-5 parts of dispersing agent and 1-5 parts of viscosity regulator.
9. The coating according to claim 6, wherein the powder coating comprises the following components in parts by mass:
20-80 parts of film forming resin, 1-2.4 parts of gelatinous fluorescent material, 20-30 parts of cured resin material, 36.1-84 parts of filler, 0.5-2 parts of flatting agent, 0.5-2 parts of defoaming agent and 0.5-1 part of benzoin.
10. A wound-detecting thickness-detecting coating prepared from the coating according to any one of claims 4 to 9.
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| US5064570A (en) * | 1987-08-26 | 1991-11-12 | Ciba-Geigy Corporation | Dispersion fluorescent brightener preparations |
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| CN104293104A (en) * | 2014-09-30 | 2015-01-21 | 嘉兴学院 | Noctilucent epoxy coiled material and preparation method thereof |
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| CN110054964A (en) * | 2019-04-15 | 2019-07-26 | 中交高新科技产业发展有限公司 | Traffic engineering steel construction self-luminous anticorrosive paint and preparation method thereof |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064570A (en) * | 1987-08-26 | 1991-11-12 | Ciba-Geigy Corporation | Dispersion fluorescent brightener preparations |
| JP2001266796A (en) * | 2000-03-22 | 2001-09-28 | Matsushita Electric Ind Co Ltd | Fluorescence material application liquid and fluorescent lamp using the same |
| KR20030012666A (en) * | 2001-08-03 | 2003-02-12 | 이영기 | A multi-purpose slurry composition comprising long phosphorescent phosphor powder and a method of its preparation |
| CN104293104A (en) * | 2014-09-30 | 2015-01-21 | 嘉兴学院 | Noctilucent epoxy coiled material and preparation method thereof |
| CN108611089A (en) * | 2018-03-27 | 2018-10-02 | 纳琳威纳米科技南通有限公司 | A kind of organically-modified fluorescence nano raw powder's production technology and application |
| CN110054964A (en) * | 2019-04-15 | 2019-07-26 | 中交高新科技产业发展有限公司 | Traffic engineering steel construction self-luminous anticorrosive paint and preparation method thereof |
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