CN111766252A - Aerosol paint and preparation method thereof - Google Patents
Aerosol paint and preparation method thereof Download PDFInfo
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- CN111766252A CN111766252A CN202010513953.3A CN202010513953A CN111766252A CN 111766252 A CN111766252 A CN 111766252A CN 202010513953 A CN202010513953 A CN 202010513953A CN 111766252 A CN111766252 A CN 111766252A
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- aerosol
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
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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
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses aerosol paint and a preparation method thereof. The aerosol paint is prepared from the following components in parts by weight: 10-20 parts of penetrating solvent, 2-5 parts of emulsifier, 1-3 parts of fluorescent colorant and 90-110 parts of water. The aerosol paint disclosed by the invention is an aqueous fluorescent system, is packaged in an aerosol type, is environment-friendly and aqueous, is easy to clean and has high sensitivity. The advantages are environmental protection, no pollution to environment and easy cleaning; the sensitivity is higher, and the surface defects of the material can be observed more easily; the aerosol can is convenient to carry and use.
Description
Technical Field
The invention relates to the field of detection, in particular to aerosol paint and a preparation method thereof.
Background
Dye penetrant inspection is one of five conventional non-destructive inspection methods (penetrant inspection, magnetic particle inspection, ray inspection, ultrasonic inspection, eddy current inspection) to detect surface opening defects of non-porous materials. Like other nondestructive testing methods, dye penetrant inspection also effectively inspects various engineering materials, parts and products on the premise of not damaging the tested objects, thereby evaluating the integrity, continuity and safety and reliability of the engineering materials, the parts and the products. Penetrant inspection is an important means for realizing quality control, and is an indispensable component in product manufacture, use and maintenance.
The dye penetrant flaw detector is mainly classified into the following categories according to classification modes: the packaging type mainly comprises two types of bulk brush coating and canning spray coating; the main categories of the colorant are dye coloring and fluorescent coloring; the solvent type is divided into oily and aqueous systems. Compared with an oily flaw detection agent, the aqueous flaw detection agent is more convenient to use due to the adoption of water for cleaning, has relatively low requirement on the safety of the environment and less pollution, and can be widely applied to large-area operation, online detection and field use. The fluorescent penetration is to add fluorescent powder into the penetrating agent, and to detect by utilizing the fluorescence emitted by the irradiation of an ultraviolet lamp, compared with common dyes, the fluorescent penetration is easier to observe the defects of surface openings and has higher sensitivity. At present, products which circulate in the market mainly comprise an oily dye system, a water-based dye system and an oily fluorescent system flaw detector, and a water-based fluorescent system flaw detector does not exist, so that the market blank is filled, and the development of an environment-friendly water-based fluorescent penetrant flaw detector is necessary to meet the high-precision environment-friendly detection requirement.
Disclosure of Invention
The invention aims to provide the water-based fluorescent aerosol paint which is environment-friendly, easy to clean and high in sensitivity and is used for penetrant inspection.
The first aspect of the invention provides aerosol paint which is prepared from the following components in parts by weight:
10-20 parts of penetrating solvent, 2-5 parts of emulsifier, 1-3 parts of fluorescent colorant and 90-110 parts of water.
In some embodiments of the invention, the penetrating solvent is selected from one or more of edible alcohol, carnauba oil, butyl carbitol, glycerol, and diethylene glycol monomethyl ether.
In some embodiments of the present invention, the emulsifier is one or more selected from the group consisting of polyoxyethylene fatty acid esters, polyalkyl glycosides, fatty acid methyl ester ethoxylates, polyoxyethylene lauryl ether, natural fatty alcohol polyoxyethylene ethers, sucrose stearates.
In some embodiments of the present invention, the fluorescent colorant is selected from one or more of benzothiazole derivatives, pyran derivatives, thiophene derivatives, benzophenone disulfonic acid derivatives, heterocyclic phenolic compounds, and coumarin derivatives.
In some embodiments of the invention, the composition is prepared from the following components in parts by weight:
15 parts of penetrating solvent, 3 parts of emulsifier, 2 parts of fluorescent colorant and 100 parts of water.
The second aspect of the present invention provides a method for preparing the aerosol paint of the first aspect, comprising the following steps:
s1, mixing, dispersing and grinding the penetrating solvent and the fluorescent colorant;
s2, mixing with water and emulsifier, dispersing, filtering, and filling into aerosol can;
and S3, injecting the propellant.
In some embodiments of the invention, the dispersing is performed using a disperser.
In some embodiments of the invention, the grinding is grinding using a sand mill.
In some embodiments of the invention, the propellant is charged in an amount of 2 to 5% by weight, the propellant being selected from one or more of compressed air, carbon dioxide, 134A, R152A, HFC-1234ze, HFC-1234 fy.
In some embodiments of the invention, the filling regime should be determined by the following method before S3 is filled with propellant;
respectively adopting a tank pressing method and a cold tank method to fill propellant into the aerosol tank filled with the aerosol paint, and then evaluating according to the following formula;
in the above formula, P is the pressure inside the aerosol canister, ρ is the density of the aerosol paint, g is the geocentric acceleration, h is the height of the aerosol paint inside the aerosol canister, n is the average molar mass of the gas inside the aerosol canister, R is the gas constant, and T is the pressure inside the aerosol canisterTemperature, V is the volume of the aerosol canister, S is the bottom area of the aerosol canister, μ is the volume error factor, λiFor the spraying efficiency, d is the diameter of the spraying holes, q is the flow rate of the sprayed aerosol paint, n is the number of the spraying holes contained in the nozzle,ithe pressure given to the propellant, k is an evaluation result, 1 means that the propellant is charged by adopting a pressure tank method, 2 means that the propellant is charged by adopting a cold tank method, and 0 means that the propellant can be charged by adopting the pressure tank method or the cold tank method;
and finally, filling the propellant in a corresponding filling mode when preparing the aerosol paint according to the evaluation result.
The invention has the beneficial effects that:
the aerosol paint disclosed by the invention is an aqueous fluorescent system, is packaged in an aerosol type, is environment-friendly and aqueous, is easy to clean and has high sensitivity. The advantages are environmental protection, no pollution to environment and easy cleaning; the sensitivity is higher, and the surface defects of the material can be observed more easily; the aerosol can is convenient to carry and use.
The aerosol paint disclosed by the invention establishes an aqueous permeation detection system of the fluorescent colorant, only comprises a permeation solvent and an emulsifier except the fluorescent colorant and water, and has simple components. Meanwhile, the preparation method is simple and quick. The whole device is environment-friendly, easy to clean and high in sensitivity.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The following examples and comparative examples are parallel runs, with the same processing steps and parameters, unless otherwise indicated. Wherein the fluorescent colorant is red fluorescent powder.
Example 1
The aerosol paint is prepared from the following components in parts by weight:
10 parts of butyl carbitol, 2 parts of polyoxyethylene lauryl ether, 1 part of fluorescent colorant and 110 parts of water.
Mixing butyl diglycol with a fluorescent colorant, dispersing for 0.5h at a high speed by using a dispersion machine, grinding by using a sand mill until no obvious particles exist, adding water and polyoxyethylene lauryl ether, dispersing for 2h at a high speed by using the dispersion machine, filtering by using a 250-mesh filter cloth, and then filling into an aerosol can; filling a propellant HFC-1234ze according to the weight proportion of 2 percent to obtain the aerosol environment-friendly aqueous fluorescent penetrant flaw detector.
Example 2
The aerosol paint is prepared from the following components in parts by weight:
20 parts of glycerol, 5 parts of sucrose stearate, 3 parts of fluorescent colorant and 110 parts of water.
Mixing glycerol and a fluorescent colorant, dispersing at high speed for 0.5h by using a dispersion machine, grinding by using a sand mill until no obvious particles exist, adding water and sucrose stearate, dispersing at high speed for 2h by using the dispersion machine, filtering by using a 250-mesh filter cloth, and then filling into an aerosol can; filling a propellant HFC-1234ze according to the weight proportion of 2 percent to obtain the aerosol environment-friendly aqueous fluorescent penetrant flaw detector.
Example 3
The aerosol paint is prepared from the following components in parts by weight:
15 parts of diethylene glycol monomethyl ether, 3 parts of fatty acid methyl ester ethoxy compound, 3 parts of fluorescent colorant and 110 parts of water.
Mixing diethylene glycol monomethyl ether with a fluorescent colorant, dispersing at high speed for 0.5h by using a dispersion machine, grinding by using a sand mill until no obvious particles exist, adding water and a fatty acid methyl ester ethoxy compound, dispersing at high speed for 2h by using the dispersion machine, filtering by using a 250-mesh filter cloth, and then filling into an aerosol can; filling a propellant HFC-1234ze according to the weight proportion of 2 percent to obtain the aerosol environment-friendly aqueous fluorescent penetrant flaw detector.
Example 4
An aerosol paint, wherein the filling mode is determined by the following method before S3 is filled with propellant;
respectively adopting a tank pressing method and a cold tank method to fill propellant into the aerosol tank filled with the aerosol paint, and then evaluating according to the following formula;
in the above formula, P is the pressure inside the aerosol can, ρ is the density of the aerosol paint, g is the acceleration of the geocentric, h is the height of the aerosol paint inside the aerosol can, n is the average molar mass of the gas inside the aerosol can, R is the gas constant, T is the temperature inside the aerosol can, V is the volume of the aerosol can, S is the bottom area of the aerosol can, μ is the volume error factor, λ is the bottom area of the aerosol can, andifor the spraying efficiency, d is the diameter of the spraying holes, q is the flow rate of the sprayed aerosol paint, n is the number of the spraying holes contained in the nozzle,ithe pressure given to the propellant, k the evaluation results, 1 means that the propellant is charged by the pressure tank method, 2 means that the propellant is charged by the cold tank method, and 0 means that the propellant is charged by the pressure tank method or the cold tank method.
And finally, filling the propellant in a corresponding filling mode when preparing the aerosol paint according to the evaluation result.
Has the advantages that: the mode of charging the propellant is determined through the technical scheme, the automatic implementation can be realized without manual calculation operation, when the propellant is charged by adopting a pressure tank method and the propellant is charged by adopting a cold tank method, the small error caused by the contact of the aerosol paint and air is fully considered, so that the related calculation is closer to the actual situation, and in addition, the mode of charging the propellant determined through the method can enable the propellant to play a greater role in the aerosol paint spraying process of the aerosol tank.
Comparative example 1
The difference from example 1 is that no penetrating solvent is present.
Comparative example 2
The difference from example 1 is that no emulsifier is present.
Experimental example 1 evaluation of Effect
The aerosol formulations prepared in examples and comparative examples were evaluated for the degree of defect indication according to the method of JB/T9218-1999 by conventional methods, and the results are shown in Table 1.
TABLE 1 sensitivity
| Linear and circular defects | Defect of dispersion shape | |
| Example 1 | Stage 2 | Stage 2 |
| Example 2 | Stage 2 | Stage 2 |
| Example 3 | Stage 2 | Stage 2 |
| Comparative example 1 | Grade 3 | Grade 3 |
| Comparative example 2 | Grade 3 | Grade 3 |
As can be seen from Table 1, the linear and circular defect dispersion-like defect sensitivity of examples 1 to 3 reached level 2, indicating that the aerosol paint of the present invention is environmentally friendly, easy to clean, and highly sensitive, although the components are simple (except for the fluorescent colorant, only water, penetrating solvent, and emulsifier). The dispersed defects sensitivity of the linear and circular defects of examples 1-3 is significantly better than that of comparative examples 1 and 2, indicating that the mutual interaction of the permselective agent and the emulsifier in the aerosol system is not acceptable.
While the preferred embodiments and examples of the present invention have been described in detail, the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. The aerosol paint is prepared from the following components in parts by weight:
10-20 parts of penetrating solvent, 2-5 parts of emulsifier, 1-3 parts of fluorescent colorant and 90-110 parts of water.
2. Aerosol paint according to claim 1, characterized in that said penetrating solvent is chosen from one or more of edible alcohols, carnauba oil, butyl carbitol, glycerol and diethylene glycol monomethyl ether.
3. Aerosol paint according to claim 1 or 2, characterized in that said emulsifier is one or more selected from the group consisting of polyoxyethylene fatty acid esters, polyalkyl glycosides, fatty acid methyl ester ethoxylates, polyoxyethylene lauryl ether, natural fatty alcohol polyoxyethylene ethers, sucrose stearates.
4. Aerosol paint according to any one of claims 1 to 3, characterized in that said fluorescent colorant is selected from one or more of benzothiazole derivatives, pyran derivatives, thiophene derivatives, benzophenone disulfonic acid derivatives, heterocyclic phenolic compounds and coumarin derivatives.
5. The aerosol paint as claimed in any one of claims 1 to 4, which is prepared from the following components in parts by weight:
15 parts of penetrating solvent, 3 parts of emulsifier, 2 parts of fluorescent colorant and 100 parts of water.
6. A process for the preparation of an aerosol paint as claimed in any one of claims 1 to 5, which includes the steps of:
s1, mixing, dispersing and grinding the penetrating solvent and the fluorescent colorant;
s2, mixing with water and emulsifier, dispersing, filtering, and filling into aerosol can;
and S3, filling the propellant.
7. The method of claim 6, wherein the dispersion is carried out using a dispersion machine.
8. A method of preparing an aerosol paint as claimed in claim 6 or claim 7 in which the grinding is carried out using a sand mill.
9. A process for preparing aerosol paint according to any one of claims 6 to 8, wherein S3 is charged with 2 to 5% by weight of propellant selected from one or more of compressed air, carbon dioxide, 134A, R152A, HFC-1234ze, HFC-1234 fy.
10. The process for producing an aerosol paint as claimed in claim 6, wherein the filling mode is determined by the following method before the propellant is filled in S3;
respectively adopting a tank pressing method and a cold tank method to fill propellant into the aerosol tank filled with the aerosol paint, and then evaluating according to the following formula;
in the above formula, P is the pressure inside the aerosol can, ρ is the density of the aerosol paint, g is the acceleration of the geocentric, h is the height of the aerosol paint inside the aerosol can, n is the average molar mass of the gas inside the aerosol can, R is the gas constant, T is the temperature inside the aerosol can, V is the volume of the aerosol can, S is the bottom area of the aerosol can, μ is the volume error factor, λ is the bottom area of the aerosol can, andifor the spraying efficiency, d is the diameter of the spraying holes, q is the flow rate of the sprayed aerosol paint, n is the number of the spraying holes contained in the nozzle,ithe pressure given to the propellant, k is an evaluation result, 1 means that the propellant is charged by adopting a pressure tank method, 2 means that the propellant is charged by adopting a cold tank method, and 0 means that the propellant can be charged by adopting the pressure tank method or the cold tank method;
and finally, filling the propellant in a corresponding filling mode when preparing the aerosol paint according to the evaluation result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010513953.3A CN111766252B (en) | 2020-06-08 | 2020-06-08 | Aerosol paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010513953.3A CN111766252B (en) | 2020-06-08 | 2020-06-08 | Aerosol paint and preparation method thereof |
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| CN111766252A true CN111766252A (en) | 2020-10-13 |
| CN111766252B CN111766252B (en) | 2023-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686889A (en) * | 2021-06-07 | 2021-11-23 | 吴江市宏达探伤器材有限公司 | Developer for detecting defects of oil-carrying container |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1553377A (en) * | 1976-07-27 | 1979-09-26 | Rockwell International Corp | Dye penetrant flaw detection |
| CN85104229A (en) * | 1985-05-31 | 1986-07-09 | 南开大学 | The dual-purpose penetrating fluid of flaw detection of painted-fluorescence |
| CN101324535A (en) * | 2008-07-24 | 2008-12-17 | 复旦大学 | Environment-friendly water-based coloring-fluorescent dual-sensitivity osmotic agent and preparation method thereof |
| CN102539435A (en) * | 2010-12-13 | 2012-07-04 | 天津市鑫利捷科技有限公司 | High-sensitivity coloring-fluorescence dual-purpose flaw detection permeation liquid |
| CN108373920A (en) * | 2018-04-26 | 2018-08-07 | 南昌航空大学 | A kind of fluorescent penetrant and its application |
| CN110618135A (en) * | 2019-09-23 | 2019-12-27 | 依工特种材料（苏州）有限公司 | Water-washing type fluorescent penetrant and preparation method thereof |
-
2020
- 2020-06-08 CN CN202010513953.3A patent/CN111766252B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1553377A (en) * | 1976-07-27 | 1979-09-26 | Rockwell International Corp | Dye penetrant flaw detection |
| CN85104229A (en) * | 1985-05-31 | 1986-07-09 | 南开大学 | The dual-purpose penetrating fluid of flaw detection of painted-fluorescence |
| CN101324535A (en) * | 2008-07-24 | 2008-12-17 | 复旦大学 | Environment-friendly water-based coloring-fluorescent dual-sensitivity osmotic agent and preparation method thereof |
| CN102539435A (en) * | 2010-12-13 | 2012-07-04 | 天津市鑫利捷科技有限公司 | High-sensitivity coloring-fluorescence dual-purpose flaw detection permeation liquid |
| CN108373920A (en) * | 2018-04-26 | 2018-08-07 | 南昌航空大学 | A kind of fluorescent penetrant and its application |
| CN110618135A (en) * | 2019-09-23 | 2019-12-27 | 依工特种材料（苏州）有限公司 | Water-washing type fluorescent penetrant and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686889A (en) * | 2021-06-07 | 2021-11-23 | 吴江市宏达探伤器材有限公司 | Developer for detecting defects of oil-carrying container |
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