CN112625579A - Low-glossiness self-extinction aircraft skin enamel and preparation method thereof - Google Patents
Low-glossiness self-extinction aircraft skin enamel and preparation method thereof Download PDFInfo
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- CN112625579A CN112625579A CN202011363749.4A CN202011363749A CN112625579A CN 112625579 A CN112625579 A CN 112625579A CN 202011363749 A CN202011363749 A CN 202011363749A CN 112625579 A CN112625579 A CN 112625579A
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- extinction
- self
- resin
- aircraft skin
- matting
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
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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
- C09D5/08—Anti-corrosive 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
- C09D7/42—Gloss-reducing agents
-
- 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)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a low-glossiness self-extinction aircraft skin enamel and a preparation method thereof. The film forming matter in the coating mainly comprises base resin and conductive filler, the base resin is selected to be a mixture of functional self-extinction resin and polyester resin to react with polyisocyanate, the influence of addition of a large amount of extinction powder in the conventional coating on the corrosion resistance is avoided, the self-extinction type aircraft skin enamel paint which has stable low glossiness and does not influence the mechanical property and the corrosion resistance of the coating is prepared, and the service life and the safety of an aircraft are improved.
Description
Technical Field
The invention belongs to the technical field of aircraft skin enamel, and particularly relates to low-glossiness self-extinction aircraft skin enamel and a preparation method thereof.
Background
When the airplane flies in a complex environment, sand and stone impact, strong light irradiation, high-temperature and low-temperature circulation and the like can be caused to damage the surface coating of the airplane skin. Therefore, the enamel paint for the aircraft skin is required to have good bonding force with a base material, excellent impact resistance and corrosion resistance, and basically cannot lose gloss under natural aging. In the traditional extinction skin paint, in order to improve the adhesive force of the skin paint, the selected resin is high-hydroxyl-value resin, and the requirement of low glossiness is realized by adding a large amount of silicon dioxide extinction powder or organic extinction powder.
A large amount of extinction powder is added into aircraft skin paint prepared by high hydroxyl value resin, so that the corrosion resistance of a coating film is influenced, the final coating film is dull due to unstable gloss, and the color difference is large; the aircraft skin coating prepared from the functional self-extinction type resin has poor impact resistance and poor binding force between a coating and a base material, and the existing coating cannot meet the requirement of low-glossiness self-extinction type aircraft skin enamel.
Disclosure of Invention
The purpose of the invention is as follows: the self-extinction type aircraft skin enamel paint which has stable low glossiness and does not affect the mechanical property and the corrosion resistance of a coating is prepared, and the service life and the safety of an aircraft are prolonged.
The invention mainly aims at the requirements of low glossiness and mechanical property of the aircraft skin, carries out professional technical research, and prepares the low glossiness self-extinction type aircraft skin enamel with excellent mechanical property and corrosion resistance. The enamel paint consists of a component A and a component B. Wherein the component A comprises functional self-extinction resin, polyester resin, titanium dioxide, carbon black, cobalt blue, mica powder, fumed silica, a dispersing agent, a defoaming agent, a surface additive, a mildew preventive, a mixed solvent A and the like; the component B consists of polyisocyanate and mixed solvent B.
A low-glossiness self-extinction aircraft skin enamel component comprises the following components in parts by mass:
the polyester resin is one or a mixture of two of Desmophen800# resin and Desmophen651# resin in any proportion.
The matting powder comprises at least one of TS-100, ED-30 and M3.
The solvent comprises at least one of xylene, n-butyl acetate and propylene glycol methyl ether acetate.
The dispersant is at least one of DISPERBYK-110, DISPERBYK-163 and DISPERBYK-180.
The defoaming agent is at least one of BYK-054 and BYK-066N, BYK-052.
The formula of the component B of the low-gloss self-extinction aircraft skin enamel comprises the following components in parts by mass:
45 to 55 percent of polyisocyanate
45 to 55 percent of mixed solvent B
The polyisocyanate is an isocyanate compound with the functionality of more than 2, and the NCO content of the polyisocyanate is 8-30%.
The mixed solvent is at least one of cyclohexanone, xylene and butyl acetate.
The invention relates to a preparation method of low-gloss self-extinction aircraft skin enamel, which prepares materials according to the formula, and the preparation process of the component A comprises the following steps:
(1) and preparing the extinction resin slurry. Adding the mixed solvent A and the functional self-extinction resin into a container, and stirring at a high speed for 30 minutes until the mixed solvent A and the functional self-extinction resin are dissolved uniformly to obtain the functional self-extinction resin paste. And adding a proper amount of matting powder into the polyester resin liquid under the stirring state, and stirring for 20 minutes to obtain the matting polyester resin slurry. And finally, mixing the functional extinction resin paste with the extinction polyester resin paste to prepare the extinction resin paste.
(2) Preparing the component A. Adding a dispersing agent, a defoaming agent, a surface auxiliary agent, a mildew inhibitor, titanium dioxide, carbon black, cobalt blue, mica powder and the residual mixed solvent A into the extinction resin slurry in sequence under a stirring state, grinding until the fineness is less than 30 mu m, filtering and discharging to obtain the component A.
The invention relates to a preparation method of low-gloss self-extinction aircraft skin enamel, which prepares materials according to the formula, and the preparation process of the component B comprises the following steps:
adding the mixed solvent B into the polyisocyanate under the stirring state, uniformly stirring and filtering to obtain the component B.
The invention relates to a low-glossiness self-extinction aircraft skin enamel and a preparation method thereof, and mainly relates to preparation of extinction resin slurry and a component A. The film forming matter in the coating mainly comprises base resin and conductive filler, and the base resin is selected as a mixture of functional self-extinction resin and polyester resin to react with polyisocyanate, so that the coating has required mechanical property and stable low glossiness. The method has the following beneficial effects:
(1) the polyester resin selected by the invention contains a large amount of hydroxyl, so that the high crosslinking density is provided, the cohesive strength is improved, and the aircraft skin paint has the required mechanical properties.
(2) The functional self-extinction resin selected by the invention wraps the extinction particles in the resin, so that stable low glossiness is provided, and excellent aging resistance is provided.
(3) The functional self-extinction resin paste is added into the extinction polyester resin paste, so that the influence of addition of a large amount of extinction powder in the conventional coating on the corrosion resistance is avoided, and the gloss requirement can be met by only adding a small amount of extinction powder into the polyester resin.
Detailed Description
This example demonstrates the preparation of a low gloss self-matting aircraft skin enamel matting resin syrup with the a component.
The first embodiment is as follows:
(1) preparation of matting resin syrup: 6Kg of Hypomer MT-2350 functional self-extinction resin, 2Kg of xylene and 2Kg of n-butyl acetate are added into a pulling cylinder and dispersed for 30 minutes under high-speed dispersing equipment. Continuously adding 0.68Kg of Desmophen800# resin, adding 0.08Kg of ED-30 under the stirring state, uniformly stirring, filtering and discharging to obtain the extinction resin slurry of the low-gloss self-extinction aircraft skin enamel.
(2) Preparation of the component A: 0.42kg of dispersing agent DISPERBYK-110, 0.12kg of defoaming agent BYK-054, 1.8kg of surface auxiliary agent BYK-3700, 0.06kg of mildew preventive BCO-2, 10kg of propylene glycol monomethyl ether acetate, 13kg of n-butyl acetate, 4.8kg of titanium dioxide, 1.2kg of carbon black, 6kg of cobalt blue and 3kg of mica powder are sequentially added into the extinction resin slurry under the stirring state, ground and dispersed until the fineness is less than 25 mu m after the stirring for 30 minutes, and filtered and discharged to obtain the component A.
Example two:
(1) preparation of matting resin syrup: 9kg of Hypomer MT-2350 functional self-extinction resin, 3kg of dimethylbenzene and 3kg of n-butyl acetate are added into a pulling cylinder, and dispersed for 30 minutes in high-speed dispersion equipment. And continuously adding 1.10kg of Desmophen800# resin, adding 0.09kg of ED-30 under the stirring state, uniformly stirring, filtering and discharging to obtain the extinction resin slurry of the low-glossiness self-extinction aircraft skin enamel.
(2) Preparation of the component A: 0.78kg of dispersing agent DISPERBYK-163, 0.15kg of defoaming agent BYK-054, 2.4kg of surface additive BYK-3700, 0.09kg of mildew preventive BCO-2, 10kg of propylene glycol monomethyl ether acetate, 14kg of n-butyl acetate, 4.8kg of titanium dioxide, 1.2kg of carbon black, 6kg of cobalt blue and 4.2kg of mica powder are sequentially added into the delustring resin slurry under the stirring state, the mixture is ground and dispersed until the fineness is less than 25 mu m after being stirred for 30 minutes, and the component A is obtained after filtering and discharging.
Example three:
(1) preparation of matting resin syrup: 11kg of Hypomer MT-2350 functional self-extinction resin, 3.67kg of dimethylbenzene and 3.67kg of n-butyl acetate are added into a pulling cylinder and dispersed for 30 minutes under a high-speed dispersing device. And continuously adding 1.74kg of Desmophen800# resin, adding 0.10kg of ED-30 under the stirring state, uniformly stirring, filtering and discharging to obtain the extinction resin slurry of the low-glossiness self-extinction aircraft skin enamel.
(2) The preparation of the low-glossiness self-extinction aircraft skin enamel component A comprises the following steps: 0.60kg of dispersing agent DISPERBYK-110, 0.18kg of defoaming agent BYK-054, 2.4kg of surface auxiliary agent BYK-3700, 0.12kg of mildew preventive BCO-2, 7.81kg of propylene glycol monomethyl ether acetate, 10kg of n-butyl acetate, 4.8kg of titanium dioxide, 1.2kg of carbon black, 6kg of cobalt blue and 4.8kg of mica powder are sequentially added into the delusted resin slurry under the stirring state, the mixture is ground and dispersed until the fineness is less than 25 mu m after being stirred for 30 minutes, and the component A is obtained after filtering and discharging.
Effects of the implementation
The products of examples 1-3 and component B were coated on high density tungsten alloy and tested for wet and heat resistance after 7 days of drying. The test results were as follows:
Claims (7)
1. the utility model provides a low glossiness is from extinction type aircraft skin enamel, the enamel comprises first, second component, its characterized in that: the formula of the component A comprises the following components in percentage by mass:
wherein the formula of the component B is as follows:
45 to 55 percent of polyisocyanate
45-55% of mixed solvent B.
2. The low gloss self-matting aircraft skin enamel according to claim 1 wherein: the polyester resin is one or a mixture of two of Desmophen800# resin and Desmophen651# resin in any proportion.
3. The low gloss self-matting aircraft skin enamel according to claim 1 wherein: the matting powder comprises at least one of TS-100, ED-30 and M3.
4. The low gloss self-matting aircraft skin enamel according to claim 1 wherein: the dispersant is at least one of DISPERBYK-110, DISPERBYK-163 and DISPERBYK-180.
5. The low gloss self-matting aircraft skin enamel according to claim 1 wherein: the defoaming agent is at least one of BYK-054 and BYK-066N, BYK-052.
6. The low gloss self-matting aircraft skin enamel according to claim 1 wherein: the polyisocyanate is an isocyanate compound with the functionality of more than 2, and the NCO content of the polyisocyanate is 8-30%.
7. A process for preparing the low gloss self-matting aircraft skin enamel according to any one of claims 1 to 6, characterized in that: the preparation method comprises the following steps of preparing materials according to the formula: preparing extinction resin slurry, namely adding a mixed solvent A and functional self-extinction resin into a container, stirring at a high speed for 30 minutes until the mixed solvent A and the functional self-extinction resin are uniformly dissolved to obtain functional self-extinction resin slurry, adding a proper amount of extinction powder into polyester resin liquid under a stirring state, stirring for 20 minutes to obtain extinction polyester resin slurry, and finally mixing the functional extinction resin slurry and the extinction polyester resin slurry to obtain extinction resin slurry; adding a dispersing agent, a defoaming agent, a surface auxiliary agent, a mildew inhibitor, titanium dioxide, carbon black, cobalt blue, mica powder and the residual mixed solvent A into the extinction resin slurry in sequence under a stirring state, grinding until the fineness is less than 30 mu m, filtering and discharging to obtain a component A; the preparation process of the component B comprises the following steps: adding the mixed solvent B into the polyisocyanate under the stirring state, uniformly stirring and filtering to obtain the component B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011363749.4A CN112625579A (en) | 2020-11-27 | 2020-11-27 | Low-glossiness self-extinction aircraft skin enamel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011363749.4A CN112625579A (en) | 2020-11-27 | 2020-11-27 | Low-glossiness self-extinction aircraft skin enamel and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112625579A true CN112625579A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011363749.4A Pending CN112625579A (en) | 2020-11-27 | 2020-11-27 | Low-glossiness self-extinction aircraft skin enamel and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608093A (en) * | 2009-07-30 | 2009-12-23 | 天津灯塔涂料工业发展有限公司 | Fluorochemical urethane enamel paint and production method thereof |
| CN104119751A (en) * | 2014-07-02 | 2014-10-29 | 西安经建油漆股份有限公司 | Nanometer enamel used for aircraft skin and preparing method thereof |
| CN104530328A (en) * | 2014-12-26 | 2015-04-22 | 中昊北方涂料工业研究设计院有限公司 | Method for preparing self-extinction resin |
| CN109912766A (en) * | 2019-03-04 | 2019-06-21 | 江西省龙海化工有限公司 | It is a kind of aqueous from ester modified polyurethane resin of mat acrylic and preparation method thereof |
| CN111072853A (en) * | 2019-12-31 | 2020-04-28 | 太仓运通新材料科技有限公司 | Self-extinction aqueous acrylic resin and preparation method thereof |
-
2020
- 2020-11-27 CN CN202011363749.4A patent/CN112625579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608093A (en) * | 2009-07-30 | 2009-12-23 | 天津灯塔涂料工业发展有限公司 | Fluorochemical urethane enamel paint and production method thereof |
| CN104119751A (en) * | 2014-07-02 | 2014-10-29 | 西安经建油漆股份有限公司 | Nanometer enamel used for aircraft skin and preparing method thereof |
| CN104530328A (en) * | 2014-12-26 | 2015-04-22 | 中昊北方涂料工业研究设计院有限公司 | Method for preparing self-extinction resin |
| CN109912766A (en) * | 2019-03-04 | 2019-06-21 | 江西省龙海化工有限公司 | It is a kind of aqueous from ester modified polyurethane resin of mat acrylic and preparation method thereof |
| CN111072853A (en) * | 2019-12-31 | 2020-04-28 | 太仓运通新材料科技有限公司 | Self-extinction aqueous acrylic resin and preparation method thereof |
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Application publication date: 20210409 |