CN114836128A - Temperature-indicating luminous coating and preparation method and application thereof - Google Patents
Temperature-indicating luminous coating and preparation method and application thereof Download PDFInfo
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The application provides a temperature indicating luminous paint and a preparation method and application thereof, wherein the paint mainly comprises a rare earth ion activated inorganic luminous powder material, an organic silicon binding material, a high-temperature film forming material, a silane coupling agent, a filler, a leveling agent, a drier and a solvent; the general chemical composition formula of the rare earth ion activated inorganic luminescent powder material is a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2‑y O 3 ·yT]Ln is one or two elements of Y and Lu, and T is one or two elements of Dy and Tm; a. b, x and y are molar coefficients satisfying charge balance, x is more than or equal to 0 and less than or equal to 1, and the rest is not zero. The invention mainly solves the problem of temperature indication of the existing photoluminescent coatingLow; the powder material is difficult to coat, and the full surface temperature measurement cannot be carried out. The temperature indicating luminous paint has the performances of large temperature measuring range, weather resistance, high temperature resistance, strong adhesive force and simple and convenient construction.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a temperature-indicating luminous coating, and a preparation method and application thereof.
Background
Wind tunnel experiments are an important link in the aircraft development process. Temperature measurement in wind tunnel experiments is very important, particularly, aerodynamic thermal action is very obvious along with the continuous increase of the flight speed of an aircraft, and the surfaces of space shuttles, spacecrafts, supersonic aircrafts and the like can be heated up violently in the flight process. The method is very key to simply and accurately measure the full surface temperature of the aircraft, thereby providing important basic data for the appearance design and the thermal protection of the aircraft.
The existing temperature measurement method is mainly a point measurement method, such as measuring by adopting a thermocouple, a temperature sensitive resistor and the like. Although relatively accurate, these methods have significant drawbacks. These point measurement methods can only give the temperature at a certain point, and cannot give the temperature distribution of the whole surface. Importantly, an external lead is required during measurement, measurement points are difficult to arrange on the surface of the aircraft, and the aerodynamic shape of the aircraft can be changed to cause temperature measurement failure. The existing surface measurement technology is generally an infrared temperature measurement method, the infrared temperature measurement method needs to accurately obtain the emissivity of an object, and the airflow in the wind tunnel causes great interference to the accuracy of the infrared temperature measurement. Therefore, the research and development of a novel full-surface temperature measurement technology has important practical significance and application significance in the fields of aircraft temperature measurement and the like.
Represented by the technology of Chinese patent document with publication number CN 102492362A and the like, the coating for measuring temperature is disclosed; such temperature indicating coatings utilize reversible or irreversible changes in the color of the coating at different temperatures for temperature measurement, but are also susceptible to environmental factors.
Currently, temperature measurement by using the change of the luminous intensity of the luminescent material with temperature is a developing temperature measurement method. The method utilizes the intensity change of the characteristic luminescence of the luminescent material to measure the temperature, and the observed signal is the intensity of the characteristic light emitted by the material under the irradiation of exciting light, so the method has the characteristics of no interference of environmental factors, sensitivity, accuracy and high efficiency. General inorganic photoluminescence materials are solid powder materials, represented by technologies such as Chinese patent document with publication number CN 104513598A, and the like, and discloses a temperature-sensitive coating which comprises components such as a matrix material, a luminescent material, a heat conduction material and the like in a certain ratio, wherein the matrix material is one of polyethylene glycol or polystyrene resin, and the luminescent material is preferably trifluoroacetyl thiophene formyl europium. However, the temperature indicating temperature of the luminous temperature indicating coating is lower, and the maximum temperature measuring upper limit is 200 ℃.
Disclosure of Invention
In view of the above, the invention aims to provide a temperature indicating luminous paint, and a preparation method and application thereof.
In order to realize the purpose of measuring the temperature of the whole surface of an object, the photoluminescent powder material must be uniformly coated on the object to be measured, and meanwhile, the coating is required to have good adhesive force and stability, can resist the scouring of airflow, does not generate chemical reaction at high temperature, does not influence the characteristic luminescence of the temperature-sensitive luminescent material and other requirements, and provides extremely high requirements for the composition and/or the proportion of the coating.
The invention provides a temperature-indicating luminous paint which mainly comprises a rare earth ion activated inorganic luminous powder material, an organic silicon binding material, a high-temperature film forming material, a silane coupling agent, a filler, a flatting agent, a drier and a solvent; the general chemical composition formula of the rare earth ion activated inorganic luminescent powder material is a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]Ln is one or two elements of Y and Lu, and T is one or two elements of Dy and Tm; a. b, x and y are molar coefficients satisfying charge balance, x is more than or equal to 0 and less than or equal to 1, and the rest is not zero.
In the embodiment of the invention, the mass ratio of the rare earth ion activated inorganic luminescent powder material, the organic silicon binding material, the high-temperature film forming material and the silane coupling agent is 60-80: 30-70: 1-6: 1 to 5.
In an embodiment of the present invention, the molar coefficient range of the rare earth ion activated phosphor powder material is: a is more than or equal to 2 and less than or equal to 4, b is more than or equal to 4 and less than or equal to 6, and y is more than or equal to 0.001 and less than or equal to 0.4; the organic silicon binding material is one or more of epoxy modified organic silicon resin, acrylic acid modified organic silicon resin, polymethylsiloxane and polymethylphenylsiloxane.
In an embodiment of the present invention, the high-temperature film-forming material is a low-melting-point glass frit, preferably a lead-free low-melting-point glass frit.
In the embodiment of the invention, the silane coupling agent is one or more of KH-560, KH-570, KH-791 and KH-792.
In an embodiment of the invention, the filler comprises one or more of fumed silica and talc.
In an embodiment of the invention, the drier is one or two of tetrabutyl titanate and tetrabutyl zirconate; the solvent is one or more of dimethylbenzene, butyl acetate and n-butyl alcohol.
In an embodiment of the present invention, the temperature indicating luminous paint further comprises a dispersant.
The invention provides a preparation method of the temperature indicating luminous paint, which comprises the following steps: mixing the rare earth ion activated inorganic luminescent powder material, the organic silicon binding material, the high-temperature film forming material, the silane coupling agent, the filler, the flatting agent and other auxiliary agents with the solvent, preferably grinding for more than 0.5 hour under the cooling protection condition, and then adding the drier to obtain the temperature indicating luminescent coating.
The invention provides the application of the temperature indicating luminous coating in the surface temperature measurement of the base material, the coating can be obtained by coating the coating on the surface of an object to be measured and drying, the upper limit of the measurement temperature can reach 1000 ℃, and the base material of the object to be measured comprises ceramic, metal and carbon-carbon materials.
Compared with the prior art, the invention provides a luminescent coating with photoluminescence intensity change capable of being used for indicating temperature, the upper temperature measurement limit of the coating can reach 1000 ℃, and the coating comprises the following formula components: rare earth ion activated inorganic luminescent powder material (general formula a [ (1-x) Al) 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]) The adhesive comprises an organic silicon adhesive material, a high-temperature film forming material, a silane coupling agent, a filler, a flatting agent, a drier and a solvent. The coating has simple construction process, can emit rare earth ion characteristic light under the excitation of ultraviolet light, does not generate chemical reaction with photoluminescent powder materials under high temperature, and has good adhesive capacity on various base materials such as ceramics, metals, carbon-carbon materials and the like. The temperature indicating luminous paint can form a high-temperature room temperature luminous coating, has good adhesion capability and luminous efficiency within the range of room temperature to 1000 ℃, can be simply and conveniently coated on the surface of an object, and is used for indicating and measuring the temperature of the whole surface. The invention mainly solves the problems that the temperature indication temperature of the existing photoluminescent coating is low; the powder material is difficult to coat, and the full surface temperature measurement cannot be carried out. The temperature indicating luminous paint has the performances of large temperature measuring range, weather resistance, high temperature resistance, strong adhesive force and simple and convenient construction.
Drawings
FIG. 1 is a photoluminescence spectrum of a coating of example 4 of the present invention;
FIG. 2 is a graph showing the relationship between the ratio of the luminous intensity at 450nm and the luminous intensity at 480nm and the temperature of the coating formed by the coating of example 4;
FIG. 3 is a photograph of a coating layer formed by the dope of example 4 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the low temperature of the existing photoluminescent coating; the powder material is difficult to coat and can not measure the temperature of the whole surface, and the invention mainly aims to provide a temperature indicating luminous paint.
The invention also aims to provide a high-temperature indicating coating, a preparation method of the high-temperature indicating coating and the like.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a temperature indicating luminous paint mainly comprises rare earth ion activated inorganic luminous powder material, organic silicon binding material, high temperature film forming matter, silane coupling agent, filler, auxiliary agent such as flatting agent, drier and solvent; the chemical general formula of the rare earth ion activated inorganic luminescent powder material is shown as formula 1: a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]。
The preparation raw materials of the temperature indicating luminous coating provided by the embodiment of the invention preferably comprise the following components in parts by weight: 60-80 parts of rare earth ion activated inorganic luminescent powder material shown in formula 1, 1-6 parts of high-temperature film forming material, 30-70 parts of organic silicon binding material, 1-5 parts of filler, 1-5 parts of silane coupling agent, 1-5 parts of auxiliary agent, 30-60 parts of solvent and 0.1-3 parts of drier.
By adopting the technical scheme, the rare earth ion activated inorganic luminescent powder material has good adhesive capacity and luminescent capacity within the range of room temperature to 1000 ℃, thereby having the function of full-surface temperature measurement.
In the scheme of the invention, the rare earth ion activated inorganic luminescent powder material is a photoluminescence material which can emit the characteristic spectrum of the rare earth ions under the irradiation of ultraviolet light, and the luminous intensity of the rare earth ions can be changed at different temperatures, so that the temperature of the rare earth ions can be reversely deduced by analyzing the luminous intensity of the rare earth ions.
Preferably, the rare earth ion activated phosphor powder material has a chemical composition of a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]The essence of the material is aluminum oxide (Al) 2 O 3 ) Gallium sesquioxide (Ga) 2 O 3 ) And the like, which are formed by arranging metal cations and oxygen atoms in a predetermined order. In the above general formula, Ln is one or two elements of rare earth (yttrium Y, lutetium Lu), T is one or two elements of rare earth (dysprosium Dy, thulium Tm), and T is preferablyDy element.
The rare earth ion 4[ Ga 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy]In the general formula of the activated inorganic luminescent powder material, a, b, x and y are molar coefficients, so that the charge can meet the balance; wherein x is 0-1, and can be 0 or 1. Specifically, the range of molar coefficients is: a is more than or equal to 2 and less than or equal to 4, b is more than or equal to 4 and less than or equal to 6, x is more than or equal to 0 and less than or equal to 1, and y is more than or equal to 0.001 and less than or equal to 0.4.
Exemplary phosphor powder materials in embodiments of the present invention include, but are not limited to: 2[ Al ] 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy]、4[Al 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy]、2[Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy]、4[Ga 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy]、2[0.5Al 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.025Dy·0.025Tm]、2[Ga 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Tm]Or 2[0.5Al 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.5Tm]And the like.
In the present invention, the a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]The inorganic luminescent powder material has high synthesis temperature (above 1500 ℃), stable physical and chemical properties, can not be burnt out in the range of room temperature to 1000 ℃, and has the capability of forming a certain relation between the luminescent intensity and the temperature. The embodiment of the invention can adopt the commercial products thereof and can also be synthesized by itself.
In addition, the organic silicon adhesive material in the scheme of the invention is mainly organic silicon resin which has high temperature resistance and is a main adhesive at the temperature of below 400 ℃; the inorganic luminescent powder material, the high-temperature film forming material, the filler and other substances can be well attached to the surface of an object in a certain temperature range.
Preferably, the silicone adhesive material is one or two of modified silicone resin, polymethylsiloxane and polymethylphenylsiloxane.
Further preferably, the modified silicone resin is one or more of epoxy modified silicone resin and acrylic modified silicone resin. More preferably, the silicone adhesive material is polymethylsiloxane and epoxy modified silicone resin, and the mass ratio of the polymethylsiloxane to the epoxy modified silicone resin is 9: 1.
Preferably, the mass ratio of the organic silicon binder to the rare earth ion activated inorganic luminescent powder material is (30-70): (60-80), such as 40:60, 50:60, 70:60, 65:80, etc.
In the scheme of the invention, the high-temperature film forming material is a key raw material, and low-melting-point glass powder can be adopted. When the temperature is lower, the organic silicon bonding material can well adhere the luminescent powder material to the substrate; when the using temperature is gradually increased, the organic silicon is continuously decomposed, the luminescent powder material is in danger of falling off, at the moment, the high-temperature film-forming material in the coating starts to soften and fuse, and the bonding layer formed by the high-temperature film-forming material can still enable the luminescent powder material to be well attached to the substrate at high temperature, so that the coating still has good attaching capacity at 1000 ℃. In the full-use temperature range, the organic silicon bonding material and the high-temperature film-forming material selected by the scheme of the invention do not react with the luminescent powder material chemically, do not interfere with the characteristic luminescence of the luminescent powder material, and do not absorb ultraviolet excitation light below 400nm, so that the organic silicon bonding material and the high-temperature film-forming material have the function of observing the characteristic luminescence of the full-surface coating of the object in a wider temperature range, and the purpose of measuring and indicating the full-surface temperature of the object is realized.
Preferably, the high-temperature film forming material is lead-free environment-friendly low-melting-point glass powder. Further preferably, the softening temperature of the environment-friendly low-melting-point glass powder is not higher than 500 ℃.
Preferably, the mass ratio of the high-temperature film-forming material to the rare earth ion excited phosphor powder material is (1-6): (60-80), more preferably 4-6: 60-80. In some embodiments of the present invention, too few high temperature film-forming substances are difficult to ensure high temperature adhesion, and too many high temperature film-forming substances reduce the luminance.
The silane coupling agent is introduced into the coating scheme, so that on one hand, a high-temperature film forming material and a rare earth ion activated inorganic luminescent powder material in the formula can be fully wetted and wrapped, and then are fully and uniformly dispersed in the organic silicon binding material diluted by the solvent; on the other hand, the silane coupling agent can connect the inorganic luminescent powder and the high-temperature film forming matter to the organic silicon binding material, so that the coating has good adhesion after being cured.
In a preferred embodiment of the invention, the silane coupling agent is one or more of KH-560, KH-570, KH-791 and KH-792. The chemical name of the silane coupling agent KH-560 is gamma-glycidoxypropyltrimethoxysilane, which is epoxy functional silane; silane coupling agent KH-570, gamma-methacryloxypropyltrimethoxysilane. Chemical name of silane coupling agent KH-791: n- (2-aminoethyl) -3-aminopropyltriethoxysilane; KH792, N- (. beta. -aminoethyl) -gamma-aminopropyl-trimethoxysilane (ethyloxy) silane, is a bis-amino-type functional silane.
Preferably, the mass ratio of the silane coupling agent to the rare earth ion excited phosphor powder material is (1-5): (60-80), more preferably 3-5: 60-80. Preferably, the mass ratio of the rare earth ion activated inorganic luminescent powder material, the organic silicon binding material, the high-temperature film forming material and the silane coupling agent is 60-80: 30-70: 1-6: 1 to 5.
The fillers selected in the scheme of the embodiment of the invention mainly comprise: fumed silica and/or talc. The gas-phase silica mainly plays a role in precipitation resistance, and if the gas-phase silica is not added, a high-temperature film forming matter and an inorganic luminescent powder material in the coating can be quickly precipitated, so that the coating can be layered in a short time, and the construction is difficult or the uniformity and the film forming quality of the coating are seriously influenced.
For the filler selected in the embodiment of the invention, the talcum powder can assist the dispersion of the inorganic luminescent powder material, improve the hardness of the coating and adjust the expansion coefficient. The addition of the talcum powder can improve the hardness of the coating, protect the coating from being damaged by tiny particles in air flow when the coating is flushed by high-speed air flow, and enable the coating to still keep the luminous capacity under the flushing of the high-speed air flow. Meanwhile, the talcum powder also has the capacity of adjusting the expansion coefficient, and because the expansion coefficient of the measured object is different from that of the coating, the expansion coefficients of different measured objects are different, if the expansion coefficient of the coating is not adjusted, the coating can fall off under the action of thermal stress during heating, so that the function of temperature measurement is lost.
In a preferred embodiment of the present invention, the fumed silica is a fumed silica suitable for medium and low polarity. In other preferred embodiments, the talc has a particle size of no greater than 800 mesh.
Preferably, the mass ratio of the filler to the rare earth ion excited phosphor powder material is (1-5): (60-80), more preferably 3-5: 60-80.
In addition, the solvent in the embodiment of the invention can be one or more of dimethylbenzene, butyl acetate and n-butyl alcohol. In some preferred embodiments, the solvent is xylene, butyl acetate and n-butanol, and the mass ratio of the xylene to the butyl acetate to the n-butanol is 3:1: 1.
Preferably, the mass ratio of the solvent to the silicone adhesive material is (30-60): 30-70), for example, 50 parts by weight of the solvent and 70 parts by weight of the silicone adhesive material are used.
The drier selected in the scheme of the invention is mainly used for accelerating the surface drying of the coating, and is convenient for quick use after the coating is sprayed. Preferably, the drier is one or two of tetrabutyl titanate and tetrabutyl zirconate.
Preferably, the mass ratio of the drier to the silicone-based binder material is (0.1-3): (30-70), more preferably 0.2-2.0: 50-70.
In addition, the embodiment of the invention also comprises one or more auxiliary agents in a dispersing agent and a leveling agent; the selected auxiliary agents mainly comprise a dispersing agent and a leveling agent. The dispersing agent has the function of improving the dispersing power of the inorganic luminescent powder material and the high-temperature film-forming agent and helping the inorganic luminescent powder material and the high-temperature film-forming agent to be uniformly dispersed, so that the prepared coating is uniform and free from floating, and the temperature indicating accuracy is improved. The leveling agent has the effects that the coating can be well and uniformly leveled in the spraying process, orange peel or agglomeration is avoided, the luminous intensity of each part of the coating is consistent, and the surface roughness of an object is not influenced to influence the flow field of airflow.
Preferably, the dispersant is a solvent-based wetting dispersant, including but not limited to one or more of transcuton KMP590, Bick BYK-111, BYK-163, Milliken BNK-NSF161 and the like. Preferably, the leveling agent includes but is not limited to one or more of basf SL 3035, ByK-306, 307, digao 432 and the like.
Preferably, the mass ratio of the sum of the mass of the leveling agent and the dispersing agent to the mass of the rare earth ion activated inorganic luminescent powder material is (1-5) to (30-70).
The embodiment of the invention also provides a preparation method of the high-temperature indicating luminous coating, which comprises the following steps: according to the proportion, the rare earth ion activated inorganic luminescent powder material, the high-temperature film forming material, the organic silicon binding material, the filler, the silane coupling agent, the auxiliary agent and the solvent are all added into a basket type grinding machine to be mixed, and the grinding is preferably carried out for 0.5 to 2 hours under the condition of cooling protection of tap water; then, adding a drier according to the proportion, and preferably grinding for 0.5-1 hour to obtain the luminous paint.
The embodiment of the invention also provides a high-temperature indicating luminous coating which can emit the characteristic spectrum of the rare earth ions under the excitation of ultraviolet light.
The preparation method of the high-temperature indicating luminous coating comprises the following steps: the coating is coated on the surface of an object to be detected by spraying, brushing, dipping or the like, and can be naturally dried for 0.5 to 24 hours at room temperature and then dried for 0.5 to 4 hours at a certain temperature to obtain the high-temperature indicating luminous coating.
In addition, the embodiment of the invention provides the application of the temperature indicating luminous coating in the measurement of the surface temperature of the substrate.
The performance tests of the obtained luminescent paint and coating, including but not limited to viscosity, adhesion and film thickness, are carried out in the embodiment of the invention, and the test method is as follows: the viscosity was measured using a paint-4 cup room temperature (this viscosity is reflected by the "time to flow out of the cup", the longer the time to flow out of the cup), the adhesion was measured using a pull-open adhesion tester, and the film thickness was measured using a magnetic induction and eddy current principle film thickness meter.
The results show that the coatings of the present invention are generally milky white liquids in appearance with viscosities ranging from 15 to 28 seconds; the coating has smooth appearance, the thickness of the coating is from 40 micrometers to 400 micrometers, the luminescent color is light yellow or light blue, and the high-temperature adhesion condition is good. The coating is a high-temperature indicating luminous coating with the upper temperature measurement limit of 1000 ℃, has a simple construction process, can emit rare earth ion characteristic light under the excitation of ultraviolet light, does not generate chemical reaction with photoluminescent powder materials under high temperature, has good adhesive capacity on various base materials such as ceramics, metals, carbon-carbon materials and the like, and is beneficial to application in temperature measurement.
In summary, the embodiments of the present invention provide a high-temperature indicating luminescent coating and a preparation method thereof. Compared with the existing paint, the temperature indicating paint provided by the invention has the following advantages: the temperature indication temperature of the coating is high, the temperature indication range is wide, and the temperature indication range can be 100-1000 ℃. The formed coating can emit a characteristic spectrum of rare earth ions under the irradiation of ultraviolet light, and the luminous intensity of the characteristic spectrum of the rare earth ions can change along with the change of temperature. The coating still has good adhesive force at higher temperature, and the coating can not crack and fall off at the maximum temperature of 1000 ℃. The paint has good construction performance, and can be suitable for coating processes such as spraying, brushing, dip-coating and the like. The coating formed by the coating provided by the embodiment of the invention has good performance, the brightness of the coating is uniform and consistent, and the coating has good hardness and smoothness.
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention. In the following examples, the rare earth ion activated phosphor powder material was synthesized by a high temperature solid phase method according to a stoichiometric ratio, and then was obtained by crushing, sieving, and selecting powders. The high-temperature film forming material is lead-free environment-friendly low-melting-point ceramic powder, the source of the high-temperature film forming material is a commercial industrial product, the softening temperature of the high-temperature film forming material is not higher than 500 ℃, and the particle size of the high-temperature film forming material is not more than 20 microns; the organic silicon binding material is polymethyl siloxane and epoxy modified organic silicon resin, and the mass ratio of the polymethyl siloxane to the epoxy modified organic silicon resin is 9: 1; the solvent is dimethylbenzene, butyl acetate and n-butyl alcohol, and the mass ratio of the dimethylbenzene to the butyl acetate to the n-butyl alcohol is 3:1: 1. The silane coupling agent is KH-560, the drier is tetrabutyl titanate, the filler is fumed silica and talcum powder, the mass ratio of the fumed silica to the talcum powder is 1:10, and the grain size of the talcum powder is not more than 800 meshes; the leveling agent is BASF SL 3035, the dispersant is Pick BYK-111, and the mass ratio of the leveling agent to the dispersant is 1: 2.
The object to be measured coated in the following embodiments may be an aircraft model, or may be a part of an engine, and the material of the object to be measured is a high-temperature-resistant composite material, or a carbon-carbon material, or an alloy material.
Example 1
The temperature indicating luminous paint comprises the following raw materials in parts by weight: rare earth ion activated inorganic luminescent powder material (2[ Al) 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy])60 parts of high-temperature film forming material 6 parts, organic silicon resin 70 parts, filler 5 parts, silane coupling agent 5 parts, auxiliary agent 5 parts, solvent 60 parts and drier 0.2 part. According to the proportion, the rare earth ion activated inorganic luminescent powder material, the high-temperature film forming material, the organic silicon resin, the filler, the silane coupling agent, the assistant and the solvent are all added into a basket type grinding machine and ground for 2 hours under the condition of cooling protection of tap water. Then adding a drier according to the proportion, and grinding for 0.5 hour to obtain the temperature-indicating luminous paint.
The temperature-indicating luminescent coating is coated on an object to be measured in a spraying mode, naturally dried for 12 hours at room temperature and then dried for 2 hours at 180 ℃ to obtain the temperature-indicating luminescent coating.
Example 2
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2[ Al) 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy])。
Example 3
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4[ Al) 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy])。
Example 4
This example and example 1The difference is only that: the rare earth ion activated inorganic luminescent powder material is (4[ Al) 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy])。
Example 5
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2 Ga) 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy])。
Example 6
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2 Ga) 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy])。
Example 7
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4 Ga) 2 O 3 ]·4[Y 2-0.05 O 3 ·0.05Dy])。
Example 8
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4 Ga) 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy])
Example 9
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.025Dy·0.025Tm])。
Example 10
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·4[Y 2-0.05 O 3 ·0.025Dy·0.025Tm])。
Example 11
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·4[Y 2-0.05 O 3 ·0.025Dy·0.025Tm])。
Example 12
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.025Dy·0.025Tm])。
Example 13
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.1 O 3 ·0.05Dy·0.05Tm])。
Example 14
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·4[Y 2-0.1 O 3 ·0.05Dy·0.05Tm])。
Example 15
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·4[Y 2-0.1 O 3 ·0.05Dy·0.05Tm])。
Example 16
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (4[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.1 O 3 ·0.05Dy·0.05Tm])。
Example 17
The present embodiment differs from embodiment 1 only in that: the rare earth ion activated inorganic luminescent powder material is (2 Ga) 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Tm])。
Comparative example 1
The present embodiment differs from embodiment 1 only in that: the filler content was 0.5 part.
Comparative example 2
The comparative example differs from example 1 only in that: no leveling agent is added.
Comparative example 3
The comparative example differs from example 1 only in that: no silane coupling agent was added.
Example 18
The temperature indicating luminous paint comprises the following raw materials in parts by weight: rare earth ion activated inorganic luminescent powder material (2[0.5 Al) 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.05Dy])60 parts of high-temperature film forming material 6 parts, organic silicon resin 70 parts, filler 5 parts, silane coupling agent 5 parts, auxiliary agent 5 parts, solvent 50 parts and drier 0.5 part. According to the proportion, the rare earth ion activated inorganic luminescent powder material, the high-temperature film forming material, the organic silicon resin, the filler, the silane coupling agent, the auxiliary agent and the solvent are all added into a basket type grinding machine, and grinding is carried out for 2 hours under the condition of cooling protection of tap water. Then adding a drier according to the proportion, and grinding for 0.5 hour to obtain the temperature-indicating luminous paint.
The temperature-indicating luminescent coating is coated on an object to be measured in a dip-coating mode, naturally dried for 4 hours at room temperature and then dried for 2 hours at 180 ℃ to obtain the temperature-indicating luminescent coating.
Example 19
The temperature indicating luminous paint is prepared with RE ion activated inorganic luminous powder material 2[0.5Al 2 O 3 ·0.5Ga 2 O 3 ]·6[Y 2-0.05 O 3 ·0.5Tm])60 parts of high-temperature film forming material 6 parts, organic silicon resin 50 parts, filler 5 parts, silane coupling agent 5 parts, auxiliary agent 5 parts, solvent 40 parts and drier 1 part. According to the proportion, the rare earth ion activated inorganic luminescent powder material, the high-temperature film forming material, the organic silicon resin, the filler, the silane coupling agent, the auxiliary agent and the solvent are all added into a basket type grinding machine, and grinding is carried out for 2 hours under the condition of cooling protection of tap water. Then adding a drier according to the proportion, and grinding for 0.5 hour to obtain the temperature-indicating luminous paint.
The temperature indicating luminescent coating is obtained by coating the temperature indicating luminescent coating on an object to be tested by brushing, naturally drying for 3 hours at room temperature and then drying for 2 hours at 120 ℃.
The coatings obtained in example 1, example 4, comparative examples 1 to 3, example 18 and example 19 were tested, respectively, and the results are shown in table 1. In comparative example 1, the filler content was small, and the coating layer after high temperature had partially peeled off, so that the temperature of the peeled off portion of the coating layer could not be measured. Comparative example 2 has no leveling agent, and the degree of surface smoothness of the coating is affected to some extent, which affects the measurement accuracy of the surface temperature distribution. Comparative example 3 has no coupling agent and the coating has microcracks, which results in a final temperature profile that lacks continuity and fails to give a temperature value at the crack.
TABLE 1 coating Properties of the inventive examples
Examples 2-17 use different luminescent powder materials relative to example 1; the photoluminescence spectrum, the coating luminescence intensity and the coating photo of the coating of example 4 are respectively shown in fig. 1, fig. 2 and fig. 3.
The excitation and emission spectra are given in fig. 1, from which it can be seen that the optimum excitation wavelength is between 320-400nm and the emission wavelengths are two strong peaks at 480 and 580nm, and the correspondence of the intensity ratio of the luminescence peaks with the temperature is shown in fig. 2, and it can be seen that the intensity ratio monotonically increases with the temperature in the range from room temperature to 1000 c, and thus the temperature can be inferred from the luminescence intensity ratio. As can be seen from FIG. 3, the coating of example 4 was smooth and even. The effect of the remaining embodiments is similar.
The embodiment shows that the coating has simple construction process, can emit rare earth ion characteristic light under the excitation of ultraviolet light, does not generate chemical reaction with photoluminescence powder materials in components at high temperature, and has good adhesive capacity on various base materials such as ceramics, metals, carbon-carbon materials and the like. The temperature indicating luminous paint can form a high-temperature room temperature luminous coating, has good adhesion capability and luminous efficiency within the range of room temperature to 1000 ℃, can be simply and conveniently coated on the surface of an object, and is used for indicating and measuring the temperature of the whole surface. The temperature indicating luminous paint has the performances of large temperature measuring range, weather resistance, high temperature resistance, strong adhesive force and simple and convenient construction.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A temperature indicating luminous paint is characterized in that the paint mainly comprises a rare earth ion activated inorganic luminous powder material, an organic silicon binding material, a high-temperature film forming material, a silane coupling agent, a filler, a flatting agent, a drier and a solvent;
the general chemical composition formula of the rare earth ion activated inorganic luminescent powder material is a [ (1-x) Al 2 O 3 ·xGa 2 O 3 ]·b[Ln 2-y O 3 ·yT]Ln is one or two elements of Y and Lu, and T is one or two elements of Dy and Tm; a. b, x and y are molar coefficients satisfying charge balance, x is more than or equal to 0 and less than or equal to 1, and the rest is not zero.
2. The temperature-indicating luminescent coating as claimed in claim 1, wherein the mass ratio of the rare earth ion activated inorganic luminescent powder material, the organic silicon binding material, the high-temperature film forming material and the silane coupling agent is 60-80: 30-70: 1-6: 1 to 5.
3. A luminescent coating as claimed in claim 1, wherein the rare earth ion activated phosphor powder material has a molar coefficient in the range of: a is more than or equal to 2 and less than or equal to 4, b is more than or equal to 4 and less than or equal to 6, and y is more than or equal to 0.001 and less than or equal to 0.4; the organic silicon binding material is one or more of epoxy modified organic silicon resin, acrylic acid modified organic silicon resin, polymethylsiloxane and polymethylphenylsiloxane.
4. A temperature-indicating luminous paint as claimed in claim 1, wherein the high-temperature film former is low-melting glass powder, preferably lead-free low-melting glass powder.
5. A luminescent paint as claimed in claim 1, wherein the silane coupling agent is one or more of KH-560, KH-570, KH-791 and KH-792.
6. A temperature-indicating luminous paint as claimed in claim 1, wherein the filler comprises one or more of fumed silica and talc.
7. The temperature-indicating luminous paint as claimed in claim 1, wherein the drier is one or two of tetrabutyl titanate and tetrabutyl zirconate; the solvent is one or more of dimethylbenzene, butyl acetate and n-butyl alcohol.
8. A temperature indicating luminescent coating according to any one of claims 1 to 7, further comprising a dispersant.
9. A method of preparing a thermoluminescent coating as claimed in any one of claims 1 to 8, comprising the steps of: mixing a rare earth ion activated inorganic luminescent powder material, an organic silicon binding material, a high-temperature film forming material, a silane coupling agent, a filler, a flatting agent and a solvent, preferably grinding for more than 0.5 hour under a cooling protection condition, and then adding a drier to obtain the temperature-indicating luminescent coating.
10. Use of the luminescent coating for temperature measurement according to any one of claims 1 to 8 for temperature measurement of a substrate surface, wherein the coating is obtained by coating the coating on the surface of an object to be measured and drying the coating, the upper limit of the measurement temperature can reach 1000 ℃, and the object to be measured substrate comprises ceramic, metal and carbon-carbon materials.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550315A (en) * | 2009-05-15 | 2009-10-07 | 泰州市四联化工有限公司 | Black organic-silicon heat-resisting paint and preparation method thereof |
| CN102719193A (en) * | 2012-06-27 | 2012-10-10 | 广州豪之晟化工有限公司 | High-temperature resistant coating |
| JP2013189564A (en) * | 2012-03-14 | 2013-09-26 | Sumitomo Metal Mining Co Ltd | Visible light responsive phosphor, and method for manufacturing the same, and temperature-indicating material containing the same |
| CN104559633A (en) * | 2013-10-10 | 2015-04-29 | 李伟 | Rare earth noctilucent paint for road traffic sign board and preparation method of rare earth noctilucent paint |
| CN105111935A (en) * | 2015-09-02 | 2015-12-02 | 航天材料及工艺研究所 | High-temperature-resistant and high-radiation-resistant thermal control coating and preparation method thereof |
| CN108949014A (en) * | 2018-06-27 | 2018-12-07 | 镇江市益宝电气科技有限公司 | A kind of high temperature resistant switchgear |
| CN109810710A (en) * | 2019-03-01 | 2019-05-28 | 中国科学院长春应用化学研究所 | It is a kind of double-colored from reference thermometric luminescent material and preparation method thereof |
| CN110240904A (en) * | 2019-07-02 | 2019-09-17 | 上海洞舟实业有限公司 | A kind of novel nano temperature-measurement material preparation method |
-
2022
- 2022-05-16 CN CN202210528787.3A patent/CN114836128A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550315A (en) * | 2009-05-15 | 2009-10-07 | 泰州市四联化工有限公司 | Black organic-silicon heat-resisting paint and preparation method thereof |
| JP2013189564A (en) * | 2012-03-14 | 2013-09-26 | Sumitomo Metal Mining Co Ltd | Visible light responsive phosphor, and method for manufacturing the same, and temperature-indicating material containing the same |
| CN102719193A (en) * | 2012-06-27 | 2012-10-10 | 广州豪之晟化工有限公司 | High-temperature resistant coating |
| CN104559633A (en) * | 2013-10-10 | 2015-04-29 | 李伟 | Rare earth noctilucent paint for road traffic sign board and preparation method of rare earth noctilucent paint |
| CN105111935A (en) * | 2015-09-02 | 2015-12-02 | 航天材料及工艺研究所 | High-temperature-resistant and high-radiation-resistant thermal control coating and preparation method thereof |
| CN108949014A (en) * | 2018-06-27 | 2018-12-07 | 镇江市益宝电气科技有限公司 | A kind of high temperature resistant switchgear |
| CN109810710A (en) * | 2019-03-01 | 2019-05-28 | 中国科学院长春应用化学研究所 | It is a kind of double-colored from reference thermometric luminescent material and preparation method thereof |
| CN110240904A (en) * | 2019-07-02 | 2019-09-17 | 上海洞舟实业有限公司 | A kind of novel nano temperature-measurement material preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 张建英等: "不可逆示温涂料的研究进展" * |
| 王诏宣: "稀土掺杂陶瓷示温材料的制备及其非接触温度探测研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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Application publication date: 20220802 |