CN106479358A - A kind of high-temperature-resistant shielding coating and preparation method thereof - Google Patents
A kind of high-temperature-resistant shielding coating and preparation method thereof Download PDFInfo
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- CN106479358A CN106479358A CN201611083241.2A CN201611083241A CN106479358A CN 106479358 A CN106479358 A CN 106479358A CN 201611083241 A CN201611083241 A CN 201611083241A CN 106479358 A CN106479358 A CN 106479358A
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- temperature
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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
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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
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of high-temperature-resistant shielding coating and preparation method thereof, is related to electromagnetic wave screen paint field, by mass percentage, including following component：Wherein, the fire resistant resin matrix is organic siliconresin, modified organic silicone resin, at least one in polyimides for 10～9.0% fire resistant resin matrixes, 40.0～85.0% high temperature resistant fillers, 1.5～5% additives, 15.0～25.0% solvents；The high temperature resistant filler is the magnetic material with clad, and the clad is SiO2、Al2O3, BN or Graphene, the magnetic material is at least one in ferrite, carbonyl iron dust, iron sial or iron silicochromium；The additive is toughener, anti-settling agent, antioxidant, defoamer, dispersant, at least one in levelling agent.The long-term still more stable at high temperature and high temperature resistant and shield effectiveness of the coating of the present invention is all preferable.
Description
Technical field
The present invention relates to electromagnetic wave screen paint field, and in particular to a kind of high-temperature-resistant shielding coating and preparation method thereof.
Background technology
Some high temperature places in the industrial production, such as iron and steel chimney, high-temperature pipe, high temperature furnace, petroleum cracking device,
The surface of high-temperature reaction equipment and military industry equipment etc., needs to adopt with shielding action and resistant to elevated temperatures coating is to equipment surface
It is coated, to prevent Radiation On Human body in equipment and equipment from damaging, meanwhile, also avoid high temperature action from dividing into and enjoy
Damage, and then the usage cycles of extension device, reduce the use cost of equipment.
Existing high-temperature resistant coating main component is resin, specifically includes phenolic resin, epoxy modified resin, polyimides
Or/and organic siliconresin, under the high temperature conditions, the key of its internal small molecule is susceptible to fracture to above-mentioned cold coating, and coating is soft
Property be deteriorated, so that coating is restricted in the use of special-shaped high temperature resistant portion faces.
For reaching the effect of radiation proof, it usually needs add magnetic metal powder, but magnetic metal powder is in hot environment
Can aoxidize during Long-Time Service, cause material to lose shield effectiveness.
Content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of high-temperature-resistant shielding coating and its system
Preparation Method, coating are still more stable at high temperature for a long time, and high temperature resistant and shield effectiveness is all preferable.
For reaching object above, the present invention is adopted the technical scheme that：
A kind of high-temperature-resistant shielding coating, by mass percentage, including following component：
Wherein, the fire resistant resin matrix be organic siliconresin, modified organic silicone resin, in polyimides at least one
Kind；
The high temperature resistant filler is the magnetic material with clad, and the clad is SiO2、Al2O3, BN or graphite
Alkene, the magnetic material are at least one in ferrite, carbonyl iron dust, iron sial or iron silicochromium；
The additive is toughener, anti-settling agent, antioxidant, defoamer, dispersant, at least one in levelling agent.
On the basis of technique scheme, the coating thickness of the high temperature resistant filler is 10nm～20 μm.
On the basis of technique scheme, the solvent is dimethylbenzene, butyl acetate, n-butanol, in cyclohexanone extremely
Few one kind.
On the basis of technique scheme, the solvent is dimethylbenzene, quality pressed by butyl acetate, n-butanol, cyclohexanone
Part 1:2～3:1～4:2～3.5 configurations are formed.
On the basis of technique scheme, the density of the coating is 0.3～0.7g/cm3.
On the basis of technique scheme, the density of the coating is 0.5g/cm3.
On the basis of technique scheme, the toughener is short carbon fiber, Graphene or nano material.
A kind of preparation method of high-temperature-resistant shielding coating, comprises the following steps：
S1, by mass percentage by 10～9.0% fire resistant resin matrixes, 1.5～5% additives and 15.0～25.0%
Solvent adds reactor and stirs；
S2, rotating speed be 500～600rpm under conditions of, add 40.0～85.0% high temperature resistant fillers after, switching to
Under conditions of 1000～1200rpm, 30min is to mixing for stirring.
On the basis of technique scheme, the mixing speed in step S1 is 1000～1200rpm.
On the basis of technique scheme, further comprising the steps of after step S2：By the slurry for mixing
Milled on three-roller, mill 3～5 times be less than 30 μm to fineness, prepared high-temperature-resistant shielding coating.
Compared with prior art, it is an advantage of the current invention that：
(1) a kind of high-temperature-resistant shielding coating of the present invention, lighter weight, coating is at a high temperature of temperature is more than 500 DEG C
After processing 50h, the pliability of coating does not change, and the phenomenon for becoming fragile does not occur, and can be adhered tightly to equipment surface；And
Coating is coated in after device outer surface, coating thickness >=0.5cm, when device interior carries out radioreaction, its external detection
Amount of radiation be level of security, with preferable radiation-proof effect.
Specific embodiment
With reference to embodiments the present invention is described in further detail.
A kind of high-temperature-resistant shielding coating, by mass percentage, including following component：
Wherein, fire resistant resin matrix be organic siliconresin, modified organic silicone resin, at least one in polyimides.
High temperature resistant filler is the magnetic material with clad, and clad is SiO2、Al2O3, BN or Graphene, magnetic material
Expect at least one in ferrite, carbonyl iron dust, iron sial or iron silicochromium, the coating thickness of high temperature resistant filler be 10nm～
20μm.
Additive is toughener, anti-settling agent, antioxidant, defoamer, dispersant, at least one in levelling agent, toughener
For short carbon fiber, Graphene or nano material.
Solvent is dimethylbenzene, butyl acetate, n-butanol, at least one in cyclohexanone, in the present embodiment, solvent is diformazan
Mass parts 1 pressed by benzene, butyl acetate, n-butanol, cyclohexanone:2～3:1～4:2～3.5 configurations are formed.
The coating density prepared using the formula of the present invention is 0.3～0.7g/cm3, in the present embodiment, the density of coating is
0.5g/cm3, and after coating processes 50h at a high temperature of temperature is for more than 500 DEG C, the pliability of coating does not change, and does not have
There is the phenomenon for becoming fragile, equipment surface can be adhered tightly to；And coating is coated in after device outer surface, coating thickness >=
0.5cm, when device interior carries out radioreaction, the amount of radiation of its external detection is level of security, with preferable radiation proof
Effect.
The present invention also provides a kind of preparation method of high-temperature-resistant shielding coating, comprises the following steps：
S1, by mass percentage by 10～9.0% fire resistant resin matrixes, 1.5～5% additives and 15.0～25.0%
Solvent adds reactor, and low whipping speed is for stirring under conditions of 1000～1200rpm.
S2, rotating speed be 500～600rpm under conditions of, add 40.0～85.0% high temperature resistant fillers after, switching to
Under conditions of 1000～1200rpm, 30min is to mixing for stirring.
S3, the slurry for mixing is milled on three-roller, mill 3～5 times be less than 30 μm to fineness, prepared
High-temperature-resistant shielding coating.
Below, by 5 embodiments, the present invention is described in detail.
Embodiment 1
20g fire resistant resin, 16g solvent, 1.2g additive (in addition to toughening material) are added in beaker, using at a high speed
After mixer stirs 30min under rotating speed is for 1200rpm, adjustment rotating speed is slowly added to the high temperature resistant filler of 10g to 500rpm,
Rotating speed is adjusted to 1000rpm after high temperature resistant filler is added；And the toughening material of 2g after stirring 30min, is added, treat toughness reinforcing material
Material disperses 20min to mixing using ultraemulsifier after adding, and the slurry for mixing is milled on three-roller,
Mill 3 times to fineness be 20 μm, be obtained high-temperature-resistant shielding coating.
The level spraying on 120mm × 25mm tinplate by the coating for preparing, spraying weight in wet base are obtained up to 12g
Through high temperature 5h, 0.5mm coating treats which is fully cured.The coating of preparation is heat-treated 40h under the conditions of 500 DEG C of high temperature, coating soft
Property for≤15mm, density is 1.79g/cm3, and coating reflection loss≤- 3dB at 10GHz～18GHz, adhesive force
7.43MPa.
Embodiment 2
24g fire resistant resin, 18g solvent, 1g additive (in addition to toughening material) are added in beaker, using high-speed stirring
Mix after machine stirs 30min under rotating speed is for 1200rpm, adjustment rotating speed is slowly added to the high temperature resistant filler of 8.5g, treats to 600rpm
Rotating speed is adjusted to 1200rpm after adding by high temperature resistant filler；And the toughening material of 2.8g after stirring 30min, is added, treat toughness reinforcing material
Material disperses 20min to mixing using ultraemulsifier after adding, and the slurry for mixing is milled on three-roller,
Mill 5 times to fineness be 25 μm, be obtained high-temperature-resistant shielding coating.
The level spraying on 120mm × 25mm tinplate by the coating for preparing, spraying weight in wet base are obtained up to 9.6g
Through high temperature 5h, 0.5mm coating treats which is fully cured.The coating of preparation is heat-treated 60h under the conditions of 550 DEG C of high temperature, coating soft
Property for≤15mm, density is 1.26g/cm3, and coating reflection loss≤- 3dB at 10GHz～18GHz, adhesive force
7.53MPa.
Embodiment 3
12g fire resistant resin, 9g solvent, 1.2g additive (in addition to toughening material) are added in beaker, using at a high speed
After mixer stirs 30min under rotating speed is for 1100rpm, adjustment rotating speed is slowly added to the high temperature resistant filler of 6g, treats to 600rpm
Rotating speed is adjusted to 1200rpm after adding by high temperature resistant filler；And the toughening material of 3.6g after stirring 30min, is added, treat toughness reinforcing material
Material disperses 20min to mixing using ultraemulsifier after adding, and the slurry for mixing is milled on three-roller,
Mill 4 times to fineness be 23 μm, be obtained high-temperature-resistant shielding coating.
The level spraying on 120mm × 25mm tinplate by the coating for preparing, spraying weight in wet base are obtained up to 14g
Through high temperature 5h, 0.5mm coating treats which is fully cured.The coating of preparation is heat-treated 60h under the conditions of 500 DEG C of high temperature, coating soft
Property for≤15mm, density is 1.26g/cm3, and coating reflection loss≤- 3dB at 10GHz～18GHz, adhesive force
7.53MPa.
Embodiment 4
22g fire resistant resin, 16g solvent, 1.1g additive (in addition to toughening material) are added in beaker, using at a high speed
After mixer stirs 30min under rotating speed is for 1000rpm, adjustment rotating speed is slowly added to the high temperature resistant filler of 5.5g to 550rpm,
Rotating speed is adjusted to 1100rpm after high temperature resistant filler is added；And the toughening material of 3g after stirring 30min, is added, treat toughness reinforcing material
Material disperses 20min to mixing using ultraemulsifier after adding, and the slurry for mixing is milled on three-roller,
Mill 5 times to fineness be 20 μm, be obtained high-temperature-resistant shielding coating.
The level spraying on 120mm × 25mm tinplate by the coating for preparing, spraying weight in wet base are obtained up to 8g
Through high temperature 5h, 0.5mm coating treats which is fully cured.The coating of preparation is heat-treated 60h under the conditions of 500 DEG C of high temperature, coating soft
Property for≤15mm, density is 0.62g/cm3, and coating reflection loss≤- 3dB at 10GHz～18GHz, adhesive force
7.33MPa.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, without departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of high-temperature-resistant shielding coating, it is characterised in that：By mass percentage, including following component：
Wherein, the fire resistant resin matrix be organic siliconresin, modified organic silicone resin, at least one in polyimides；
The high temperature resistant filler is the magnetic material with clad, and the clad is SiO2、Al2O3, BN or Graphene, institute
Magnetic material is stated at least one in ferrite, carbonyl iron dust, iron sial or iron silicochromium；
The additive is toughener, anti-settling agent, antioxidant, defoamer, dispersant, at least one in levelling agent.
2. a kind of high-temperature-resistant shielding coating as claimed in claim 1, it is characterised in that：The cladding thickness of the high temperature resistant filler
Spend for 10nm～20 μm.
3. a kind of high-temperature-resistant shielding coating as claimed in claim 1, it is characterised in that：The solvent is dimethylbenzene, acetic acid fourth
At least one in ester, n-butanol, cyclohexanone.
4. a kind of high-temperature-resistant shielding coating as claimed in claim 3, it is characterised in that：The solvent is dimethylbenzene, acetic acid fourth
Mass parts 1 pressed by ester, n-butanol, cyclohexanone:2～3:1～4:2～3.5 configurations are formed.
5. a kind of high-temperature-resistant shielding coating as claimed in claim 1, it is characterised in that：The density of the coating be 0.3～
0.7g/cm3.
6. a kind of high-temperature-resistant shielding coating as claimed in claim 5, it is characterised in that：The density of the coating is 0.5g/cm3.
7. a kind of high-temperature-resistant shielding coating as claimed in claim 1, it is characterised in that：The toughener is short carbon fiber, stone
Black alkene or nano material.
8. a kind of preparation method of high-temperature-resistant shielding coating, it is characterised in that comprise the following steps：
S1, by mass percentage by 10～9.0% fire resistant resin matrixes, 1.5～5% additives and 15.0～25.0% solvents
Add reactor and stir；
S2, under conditions of rotating speed is 500～600rpm, after adding 40.0～85.0% high temperature resistant fillers, switching to 1000～
Under conditions of 1200rpm, 30min is to mixing for stirring.
9. a kind of preparation method of high-temperature-resistant shielding coating as claimed in claim 8, it is characterised in that：In step S1
Mixing speed is 1000～1200rpm.
10. a kind of preparation method of high-temperature-resistant shielding coating as claimed in claim 8, it is characterised in that：Step S2 it
Further comprising the steps of afterwards：The slurry for mixing is milled on three-roller, mill 3～5 times to fineness be 30 μm with
Under, high-temperature-resistant shielding coating is obtained.
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| CN201611083241.2A CN106479358B (en) | 2016-11-30 | 2016-11-30 | A kind of high-temperature-resistant shielding coating and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395838A (en) * | 2018-03-02 | 2018-08-14 | 合肥铭佑高温技术有限公司 | A kind of environment-friendly type coating and preparation method thereof with high temperature resistant function |
| CN108531073A (en) * | 2018-03-03 | 2018-09-14 | 王金桢 | A kind of preparation method of heatproof antiradar coatings |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111205743A (en) * | 2020-03-20 | 2020-05-29 | 安徽省高泰新材料有限公司 | High-temperature-resistant electromagnetic wave absorbing coating, coating and preparation method and application thereof |
| CN111254750A (en) * | 2020-02-26 | 2020-06-09 | 广东天元汇邦新材料股份有限公司 | Melamine impregnated paper with electromagnetic wave absorption function and preparation method thereof |
| CN111925726A (en) * | 2020-08-20 | 2020-11-13 | 绵阳麦思威尔科技有限公司 | Modified heavy-duty anticorrosive paint for offshore wind turbine and steel pipe pile and preparation method thereof |
| CN113956047A (en) * | 2021-10-27 | 2022-01-21 | 大连东信微波技术有限公司 | Ultrahigh temperature-resistant radar wave absorbing material and preparation method thereof |
| CN115365488A (en) * | 2022-07-21 | 2022-11-22 | 航天特种材料及工艺技术研究所 | High-performance high-temperature-resistant electromagnetic loss material and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395838A (en) * | 2018-03-02 | 2018-08-14 | 合肥铭佑高温技术有限公司 | A kind of environment-friendly type coating and preparation method thereof with high temperature resistant function |
| CN108531073A (en) * | 2018-03-03 | 2018-09-14 | 王金桢 | A kind of preparation method of heatproof antiradar coatings |
| CN110982421A (en) * | 2019-11-08 | 2020-04-10 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN110982421B (en) * | 2019-11-08 | 2021-07-30 | 航天科工武汉磁电有限责任公司 | High-temperature-resistant wave-absorbing coating and preparation method thereof |
| CN111254750A (en) * | 2020-02-26 | 2020-06-09 | 广东天元汇邦新材料股份有限公司 | Melamine impregnated paper with electromagnetic wave absorption function and preparation method thereof |
| CN111254750B (en) * | 2020-02-26 | 2022-07-26 | 广东天元汇邦新材料股份有限公司 | Melamine impregnated paper with electromagnetic wave absorption function and preparation method thereof |
| CN111205743A (en) * | 2020-03-20 | 2020-05-29 | 安徽省高泰新材料有限公司 | High-temperature-resistant electromagnetic wave absorbing coating, coating and preparation method and application thereof |
| CN111205743B (en) * | 2020-03-20 | 2021-09-14 | 安徽省高泰新材料有限公司 | High-temperature-resistant electromagnetic wave absorbing coating, coating and preparation method and application thereof |
| CN111925726A (en) * | 2020-08-20 | 2020-11-13 | 绵阳麦思威尔科技有限公司 | Modified heavy-duty anticorrosive paint for offshore wind turbine and steel pipe pile and preparation method thereof |
| CN113956047A (en) * | 2021-10-27 | 2022-01-21 | 大连东信微波技术有限公司 | Ultrahigh temperature-resistant radar wave absorbing material and preparation method thereof |
| CN115365488A (en) * | 2022-07-21 | 2022-11-22 | 航天特种材料及工艺技术研究所 | High-performance high-temperature-resistant electromagnetic loss material and preparation method thereof |
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| CN106479358B (en) | 2019-07-05 |
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