CN113881324A - High-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating - Google Patents
High-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
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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
- C09D5/10—Anti-corrosive paints containing metal dust
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0862—Nickel
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Paints Or Removers (AREA)
Abstract
The high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of metal conducting stuffing, high temperature resistant filming resin, organic solvent, curing agent and coupling agent; wherein the mass ratio of each component is 38-45% of metal conductive filler, 8-12% of high-temperature resistant film-forming resin, 39-49% of organic solvent, 4-8% of curing agent and 1-2% of coupling agent; wherein the high-temperature resistant film-forming resin is novolac epoxy resin; the curing agent is an aromatic amine curing agent or an aliphatic amine curing agent; the electromagnetic shielding coating with high temperature resistance, high flame retardance and high conductivity is prepared. The invention meets the requirements that the adhesive force with the composite material is more than 1MPa in a high-temperature environment of 300 ℃, the surface does not bulge and is not sticky, and the electromagnetic shielding performance is good.
Description
Technical Field
The invention discloses a high-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating, relates to an electromagnetic shielding coating and a preparation method thereof, and particularly relates to a high-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating and a preparation method thereof.
Background
The invention provides good effect for preventing electromagnetic pollution of environment and electromagnetic interference of electronic equipment and performing integral electromagnetic shielding protection on the aerospace craft. In practice, the invention has higher shielding effect, and the composite material structural member arranged at the opening part of the cabin body has conductive continuity with the installation part. The composite material is of a semi-circular arc surface structure, and the thickness of the inner wall of the composite material is within the range of 1-1.5mm, and high-temperature-resistant and anti-corrosion electromagnetic shielding coating is required to be coated to meet the shielding effectiveness within a wide frequency range (10KHZ-40G), wherein the shielding effectiveness is less than-40 dB. Provides reliable shielding effect under the use environment of high-temperature ablation erosion corrosion resistance and the like.
At present, three methods for solving the problem that a composite material product has electromagnetic shielding performance are available, one method is to spray a metal coating, namely an aluminum coating or a copper coating, on the surface of the composite material, wherein the metal coating is sprayed in an explosion mode, has high adhesive force, has excellent shielding efficiency under a high-temperature condition, but is easy to corrode under a high-humidity environment and a high-salt fog environment, and the shielding efficiency is reduced. The other method is to embed a metal net in the composite material, and because the composite material structural member is in a non-annular structure, the metal net part cannot be completely connected with other parts, so that the conductivity cannot be continuous, and the shielding effect is poor. The third method is to spray or brush the coating with the conductive function on the composite material product, and the coating has good weather resistance and strong corrosion resistance compared with a metal coating, but does not resist high temperature ablation, and the coating with the temperature of more than 300 ℃ is difficult to meet the shielding efficiency requirement in a wide frequency range.
At present, the film-forming resin matrix mainly comprises epoxy resin, phenolic resin, organic silicon resin and bismaleimide resin, and the epoxy resin has high bonding strength and good manufacturability, but has poor heat resistance and larger brittleness. The phenolic resin and the organic silicon resin have good heat resistance, good toughness, poor adhesive force and poor wear resistance. Compared with organic silicon resin, the phenolic resin has equivalent heat resistance, has higher carbon residue and is more suitable for high-temperature ablation environment. The bismaleimide and polyimide resin has high curing temperature, is limited by temperature, has poor manufacturability when being used as an electromagnetic shielding coating, and is not suitable for large-scale application. The characteristics of different resins are utilized to prepare a multi-resin system matrix, and the multi-resin system matrix is prepared with a high-temperature resistant filler, a conductive filler and a flame-retardant filler according to a certain proportion to prepare the electromagnetic shielding coating with high temperature resistance, high flame retardance and high conductivity.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating and a preparation method thereof, which are used for meeting the shielding efficiency requirement in a wide frequency range and solving the problems of poor adhesion in a high-temperature ablation environment of the coating and easiness in corrosion in a high-humidity high-salt-mist environment.
The high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of metal conducting stuffing, high temperature resistant filming resin, organic solvent, curing agent and coupling agent; wherein the mass ratio of each component is 38-45% of metal conductive filler, 8-12% of high-temperature resistant film-forming resin, 39-49% of organic solvent, 4-8% of curing agent and 1-2% of coupling agent;
wherein the high-temperature resistant film-forming resin is novolac epoxy resin;
the curing agent is an aromatic amine curing agent or an aliphatic amine curing agent;
the preparation method comprises the following steps:
step one, weighing five components of 38-45% of metal conductive filler, 8-12% of high-temperature resistant film-forming resin, 40-50% of organic solvent, 4-8% of curing agent and 1-2% of coupling agent in percentage by mass, and preparing 1-2% of coupling agent;
pouring the metal conductive filler and the high-temperature-resistant film-forming resin into a solvent, and uniformly stirring by using a dispersion machine;
step three, adding a curing agent, and uniformly mixing;
step four, filtering the coating;
step five, stirring evenly, standing for 0.5h and using;
wiping the surface of the composite material with a coupling agent, coating the uniformly stirred coating on the composite material, and determining the thickness according to the use condition;
and step seven, curing after coating.
The conductive filler comprises flaky nanostructured metals with different particle sizes.
The aromatic amine curing agent is diaminodiphenylmethane, diaminodiphenyl sulfone or diaminodiphenyl ether, and the aliphatic amine curing agent is ethylenediamine or hexamethylenediamine.
The organic solvent adopts small molecular esters or alcohols; the proportion of the small molecular ester solvent to the curing agent is adjusted according to 10: 1-2.
The coupling agent is KH650 coupling agent.
Wherein, the coating is filtered by a 100-mesh screen in the fourth step, so that the conglobation floccule can be removed.
The metal conductive filler is nano silver or nano nickel.
The organic solvent is ethyl acetate solvent or propyl acetate solvent.
The invention has the advantages that the electromagnetic shielding coating with high temperature resistance, high flame retardance and high conductivity is prepared. The invention meets the requirements that the adhesive force with the composite material is more than 1MPa in a high-temperature environment of 300 ℃, the surface does not bulge and is not sticky, and the electromagnetic shielding performance is good. The coating has certain hardness and good wear resistance in a normal-temperature assembly environment. The electromagnetic shielding material does not corrode under the condition of humidity of 95% -98% and salt concentration of 5%, and stable electromagnetic shielding performance is maintained. The invention has high adhesive force, and adopts phenolic high-temperature resistant film-forming resin to realize high-temperature resistance, ablation resistance, weather resistance and oxidation resistance.
Detailed Description
The high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of conductive stuffing, phenolic resin, organic solvent and curing agent. The mass ratio of the conductive filler to the high-temperature resistant resin is 38-45%, the high-temperature resistant resin is 8-12%, the organic solvent is 39-49%, the curing agent is 4-8%, and the coupling agent is 1-2%.
The preparation method comprises the following steps:
firstly, weighing five components of conductive filler, high-temperature resistant resin, organic solvent, curing agent and coupling agent according to the proportion of 38-45%, 8-12%, 40-50%, 4-8% and 1-2%.
And secondly, pouring the conductive filler and the high-temperature-resistant resin into the solvent and uniformly stirring by using a dispersion machine.
And step three, adding a curing agent and uniformly mixing.
And fourthly, filtering the coating.
Fifthly, stirring evenly, and standing for 0.5h for use.
And sixthly, wiping the surface of the composite material with the coupling agent, and coating the uniformly stirred coating on the composite material, wherein the thickness is determined according to the use condition.
And seventh, curing after coating.
Furthermore, the conductive filler is the main component of the electromagnetic shielding coating, and a multi-component flaky nano structure with different particle sizes is used as the conductive filler to form the integrity and the compactness of a conductive network, so that the shielding effectiveness in a wide frequency range (10KHZ-40G) reaches < -60 dB.
Furthermore, the film-forming resin prepared from the phenolic aldehyde and the epoxy has good compatibility, accelerates the curing of the coating, and enhances the high-temperature resistance and the heat-insulating property.
Furthermore, the conductive filler and the high-temperature resistant resin have good compatibility by adopting a small molecular ester or alcohol organic solvent.
Furthermore, the small molecular ester curing agent is adopted to accelerate the rapid curing of the coating, and the small molecular ester solvent and the curing agent are adjusted according to the proportion of 10:1, so that the phenomena of sagging and uneven curing of the coating on a curved surface can be avoided, and the construction surface is smooth and uniform and has stable performance.
Furthermore, KH650 coupling agent is adopted to enhance the adhesive force and the bonding strength of the coating and the base material.
Further, the coating was filtered through a 100 mesh screen to remove the flocks.
Example one
A high temperature resistant weather resistant anticorrosion electromagnetic shielding coating comprises conductive filler, phenolic epoxy resin, ethyl acetate solvent, diaminodiphenylmethane curing agent and KH650 coupling agent;
the mass ratio is as follows: 40% of nano silver, 12% of novolac epoxy resin, 43% of ethyl acetate solvent, 4% of diaminodiphenylmethane and 1% of KH650 coupling agent.
The preparation method comprises the following steps:
firstly, weighing five components of 40% of nano-silver, 12% of novolac epoxy resin, 43% of ethyl acetate solvent, 4% of diaminodiphenylmethane and 1% of KH650 coupling agent according to mass ratio;
step two, pouring the nano silver and the novolac epoxy resin into an ethyl acetate solvent, and uniformly stirring by using a dispersion machine;
step three, adding diaminodiphenylmethane and mixing uniformly;
fourthly, filtering the coating by using a 100-mesh screen to remove the conglomerate floccules;
fifthly, uniformly stirring, standing for 0.5 hour and then using;
sixthly, wiping the KH650 coupling agent on the surface of the composite material, and coating the uniformly stirred coating on the composite material, wherein the thickness of the coating is 1.5 mm;
and step seven, curing after coating.
Example two:
the high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of conductive stuffing 40 wt%, novolac epoxy resin 12 wt%, ethyl acetate solvent 43 wt%, diamino diphenyl ether curing agent 4 wt% and KH650 coupling agent 1 wt%.
The preparation method comprises the following steps:
firstly, weighing five components of 40% of nano nickel, 12% of novolac epoxy resin, 43% of ethyl acetate solvent, diamino diphenyl ether curing agent and KH650 coupling agent according to mass ratio.
And secondly, pouring the nano nickel and the novolac epoxy resin into an ethyl acetate solvent, and uniformly stirring by using a dispersion machine.
Step three, adding a diamino diphenyl ether curing agent, and uniformly mixing;
fourthly, filtering the coating by using a 100-mesh screen to remove the conglomerate floccules;
fifthly, uniformly stirring and standing for 0.5h for use;
sixthly, wiping the KH650 coupling agent on the surface of the composite material, and coating the uniformly stirred coating on the composite material, wherein the thickness of the coating is 1.8 mm;
and step seven, curing after coating.
EXAMPLE III
The high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of nanometer silver, phenolic epoxy resin, propyl acetate solvent, ethylenediamine and KH650 coupler;
the mass ratio of the nano silver to the phenolic epoxy resin is 40%, the phenolic epoxy resin is 12%, the butanediol solvent is 43%, the ethylenediamine is 4%, and the KH650 coupling agent is 1%.
The preparation method comprises the following steps:
firstly, weighing five components of 40% of nano-silver, 12% of novolac epoxy resin, 43% of propyl acetate solvent, ethylenediamine and KH650 coupling agent according to mass ratio;
step two, pouring the nano silver and the novolac epoxy resin into an ethyl acetate solvent, and uniformly stirring by using a dispersion machine;
and thirdly, adding ethylenediamine and uniformly mixing.
And fourthly, filtering the coating.
Fifthly, stirring evenly, and standing for 0.5h for use.
And sixthly, wiping the KH650 coupling agent on the surface of the composite material, and coating the uniformly stirred coating on the composite material, wherein the thickness of the coating is 1.3 mm.
And step seven, curing after coating.
Example four
A high temperature resistant weather resistant anticorrosion electromagnetic shielding coating comprises conductive filler, phenolic epoxy resin, ethyl acetate solvent, diaminodiphenylmethane curing agent and KH650 coupling agent;
the mass ratio is as follows: 39% of nano silver, 10% of novolac epoxy resin, 45% of ethyl acetate solvent, 5% of diaminodiphenylmethane and 1% of KH650 coupling agent.
The preparation method comprises the following steps:
firstly, weighing five components of 39% of nano silver, 10% of novolac epoxy resin, 45% of ethyl acetate solvent, 5% of diaminodiphenylmethane and 1% of KH650 coupling agent according to mass ratio;
step two, pouring the nano silver and the novolac epoxy resin into an ethyl acetate solvent, and uniformly stirring by using a dispersion machine;
step three, adding diaminodiphenylmethane and mixing uniformly;
fourthly, filtering the coating by using a 100-mesh screen to remove the conglomerate floccules;
fifthly, uniformly stirring, standing for 0.5 hour and then using;
sixthly, wiping the KH650 coupling agent on the surface of the composite material, and coating the uniformly stirred coating on the composite material, wherein the thickness of the coating is 1.0 mm;
and step seven, curing after coating.
Example five:
the high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of conductive stuffing, phenolic epoxy resin, propyl acetate solvent and diamino diphenyl sulfone curing agent in the weight ratio of 42% nanometer nickel, 11% phenolic epoxy resin, 40% propyl acetate solvent, 5.2% diamino diphenyl sulfone curing agent and 1.8% KH650 coupling agent.
The preparation method comprises the following steps:
firstly, 42 percent of nano nickel, 11 percent of novolac epoxy resin, 40 percent of propyl acetate solvent, 5.8 percent of diamino diphenyl sulfone curing agent and 1.8 percent of KH650 coupling agent.
And secondly, pouring the nano nickel and the novolac epoxy resin into an ethyl acetate solvent, and uniformly stirring by using a dispersion machine.
Step three, adding a diamino diphenyl sulfone curing agent, and uniformly mixing;
fourthly, filtering the coating by using a 100-mesh screen to remove the conglomerate floccules;
fifthly, uniformly stirring and standing for 0.5h for use;
sixthly, wiping the KH650 coupling agent on the surface of the composite material, and coating the uniformly stirred coating on the composite material, wherein the thickness of the coating is 2 mm;
and step seven, curing after coating.
Claims (10)
1. The high temperature resistant weather resistant anticorrosive electromagnetic shielding paint consists of metal conducting stuffing, high temperature resistant filming resin, organic solvent, curing agent and coupling agent; wherein the mass ratio of each component is 38-45% of metal conductive filler, 8-12% of high-temperature resistant film-forming resin, 39-49% of organic solvent, 4-8% of curing agent and 1-2% of coupling agent;
wherein the high-temperature resistant film-forming resin is novolac epoxy resin;
the curing agent is an aromatic amine curing agent or an aliphatic amine curing agent;
the preparation method comprises the following steps:
step one, weighing five components of 38-45% of metal conductive filler, 8-12% of high-temperature resistant film-forming resin, 40-50% of organic solvent, 4-8% of curing agent and 1-2% of coupling agent in percentage by mass, and preparing 1-2% of coupling agent;
pouring the metal conductive filler and the high-temperature-resistant film-forming resin into a solvent, and uniformly stirring by using a dispersion machine;
step three, adding a curing agent, and uniformly mixing;
step four, filtering the coating;
step five, stirring evenly, standing for 0.5h and using;
wiping the surface of the composite material with a coupling agent, coating the uniformly stirred coating on the composite material, and determining the thickness according to the use condition;
and step seven, curing after coating.
2. The high temperature and weather resistant anticorrosion electromagnetic shielding coating material of claim 1, wherein the conductive filler comprises lamellar nano-structured metals of different particle sizes.
3. The high temperature resistant, weather resistant, anti-corrosion electromagnetic shielding coating according to claim 1 or 2, wherein the aromatic amine curing agent is diaminodiphenylmethane, diaminodiphenyl sulfone, or diaminodiphenyl ether, and the aliphatic amine curing agent is ethylenediamine or hexamethylenediamine.
4. The high temperature resistant weather resistant anticorrosion electromagnetic shielding coating material of claim 1 or 2, wherein the organic solvent is small molecular esters or alcohols; the proportion of the small molecular ester solvent to the curing agent is adjusted according to 10: 1-2.
5. The high temperature resistant, weather resistant, anti-corrosion electromagnetic shielding coating according to claim 3, wherein the organic solvent is a small molecular ester or alcohol; the proportion of the small molecular ester solvent to the curing agent is adjusted according to 10: 1-2.
6. The high temperature resistant, weather resistant, anticorrosion electromagnetic shielding coating of claim 1 or 2, wherein the coupling agent is KH650 coupling agent.
7. The high temperature resistant, weather resistant and anti-corrosion electromagnetic shielding coating according to claim 1 or 2, wherein the coating is filtered by a 100-mesh screen in the fourth step, so that the agglomerate-like floc can be removed.
8. The high temperature resistant, weather resistant, anti-corrosion electromagnetic shielding coating according to claim 2, wherein the metallic conductive filler is nano silver or nano nickel.
9. The high temperature resistant, weather resistant, anti-corrosion electromagnetic shielding coating according to claim 4, wherein the small molecular ester organic solvent is an ethyl acetate solvent or a propyl acetate solvent.
10. The high temperature resistant, weather resistant, anti-corrosion electromagnetic shielding coating according to claim 5, wherein the small molecular ester organic solvent is an ethyl acetate solvent or a propyl acetate solvent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111255384.8A CN113881324A (en) | 2021-10-27 | 2021-10-27 | High-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating |
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| CN202111255384.8A CN113881324A (en) | 2021-10-27 | 2021-10-27 | High-temperature-resistant weather-resistant anti-corrosion electromagnetic shielding coating |
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Citations (6)
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| CN101210124A (en) * | 2006-12-26 | 2008-07-02 | 比亚迪股份有限公司 | Electrically-conducting paint and preparation method thereof |
| CN101275052A (en) * | 2008-05-14 | 2008-10-01 | 海洋化工研究院 | Corrosion-resistant electromagnetic screen coating and preparation thereof |
| CN104356861A (en) * | 2014-11-10 | 2015-02-18 | 兴化市兴成铜业有限公司 | Composition for inner laminated insulating film of screening can and screening can inner laminating method |
| CN106147510A (en) * | 2015-04-08 | 2016-11-23 | 泉州市合创涂料科技有限公司 | A kind of preparation method of low metal dust electrically-conducting paint |
| CN109423168A (en) * | 2017-07-12 | 2019-03-05 | 北京碧海舟腐蚀防护工业股份有限公司 | Heat resistant phenolic epoxy coating, preparation method and application |
| CN112094573A (en) * | 2020-09-21 | 2020-12-18 | 深圳先进电子材料国际创新研究院 | Sprayable efficient electromagnetic shielding slurry and preparation method thereof |
-
2021
- 2021-10-27 CN CN202111255384.8A patent/CN113881324A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210124A (en) * | 2006-12-26 | 2008-07-02 | 比亚迪股份有限公司 | Electrically-conducting paint and preparation method thereof |
| CN101275052A (en) * | 2008-05-14 | 2008-10-01 | 海洋化工研究院 | Corrosion-resistant electromagnetic screen coating and preparation thereof |
| CN104356861A (en) * | 2014-11-10 | 2015-02-18 | 兴化市兴成铜业有限公司 | Composition for inner laminated insulating film of screening can and screening can inner laminating method |
| CN106147510A (en) * | 2015-04-08 | 2016-11-23 | 泉州市合创涂料科技有限公司 | A kind of preparation method of low metal dust electrically-conducting paint |
| CN109423168A (en) * | 2017-07-12 | 2019-03-05 | 北京碧海舟腐蚀防护工业股份有限公司 | Heat resistant phenolic epoxy coating, preparation method and application |
| CN112094573A (en) * | 2020-09-21 | 2020-12-18 | 深圳先进电子材料国际创新研究院 | Sprayable efficient electromagnetic shielding slurry and preparation method thereof |
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