CN106519960A - Electromagnetic shielding coating - Google Patents
Electromagnetic shielding coating Download PDFInfo
- Publication number
- CN106519960A CN106519960A CN201611012274.8A CN201611012274A CN106519960A CN 106519960 A CN106519960 A CN 106519960A CN 201611012274 A CN201611012274 A CN 201611012274A CN 106519960 A CN106519960 A CN 106519960A
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- China
- Prior art keywords
- sulfonated graphene
- polyaniline composite
- polypyrrole
- graphene
- polyaniline
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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
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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
- C09D5/32—Radiation-absorbing paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses an electromagnetic shielding coating. The electromagnetic shielding coating comprises 40 to 60 parts of polypyrrole, 2 to 10 parts of a curing agent, 10 to 30 parts of a sulfonated graphene-polyaniline composite fiber, 5 to 15 parts of Fe0.5Ni0.4Co0.1 powder microwave absorbent, and 2 to 5 parts of a color dye; wherein the sulfonated graphene-polyaniline composite fiber is added in the form of sulfonated graphene-polyaniline composite fiber bundles, and the sulfonated graphene-polyaniline composite fiber bundles are vertically dispersed in polypyrrole so as to form an array with equal distances, and the Fe0.5Ni0.4Co0.1 powder microwave absorbent is uniformly dispersed in epoxy resin. The electromagnetic shielding coating possesses excellent electromagnetic shielding performance and heat dissipation performance.
Description
Technical field
A kind of the present invention relates to technical field of coatings, more particularly to electromagnetic screen coating.
Background technology
With developing rapidly for electronic industry and telecommunications, electronics and electrical equipment are widely used.It is existing
Electrical equipment, all with various electric elements.These electric elements can produce electromagnetic radiation.Due to the shell of electronic equipment
Body material is usually plastics, therefore electromagnetic wave can be passed freely through, so as to cause electromagnetic pollution.For the electromagnetism spoke of attenuation apparatus
Penetrate and electromagnetic interference each other, need to metallize plastic casing or conducting.Wherein, electrically-conducting paint with into
This is low, the advantages of easily realize automatization and adapt to the shell shape of complexity, it is most with prospects.
CN 103059672A disclose a kind of electromagnetic-shielding conductive coating, and its composition and mass ratio are：Modified acroleic acid tree
Fat 200-300 parts；Copper powder 150-200 parts；Silicon dioxide 20-30 parts；Titanate coupling agent 5-10 parts；Anti- heavy agent 100-120 parts.
The electromagnetic-shielding conductive coating also includes inorganic filler 200-300 parts.The silicon dioxide is aerosil.The present invention
Have the beneficial effect that：Copper powder electrically-conducting paint has the silver-plated copper powder of double protective layers, and which is environment resistant, and fire resistance is greatly improved, and leads
It is electrically similar to silver.
CN 103087574A disclose a kind of electromagnetic shielding filler, and the electromagnetic shielding filler is nucleocapsid structure, from it is interior to
It is outer to include kernel, the first shell being coated on kernel and the second shell being coated in first shell successively；The kernel is magnetic conduction material
Material, first shell are silver or copper, and second shell is polyacetylene layer.Present invention also offers the preparation method of the electromagnetic shielding filler and
Using the battery shielding coating of the electromagnetic shielding filler.The electromagnetic shielding filler that the present invention is provided has magnetic conduction, conductive dual concurrently
Function, while outer layer is conducting polymer so that the electromagnetic screen coating of the present invention has good dispersibility and electromagnetic shielding
Performance.
The content of the invention
It is an object of the invention to propose a kind of electromagnetic screen coating, enable to coating and possess excellent electromagnetic wave shielding
While energy, but also with excellent heat dissipating.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of electromagnetic screen coating, including：Polypyrrole 40-60
Firming agent 2-10
Sulfonated graphene-polyaniline composite fibre 10-30,
Fe0.5Ni0.4Co0.1Powder body microwave absorption 5-15, and
Color dye 2-5；Wherein,
The sulfonated graphene-polyaniline composite fibre be sulfonated graphene-polyaniline bundle of composite fibers, the fibre bundle
Vertical distribution forms equidistant array, the Fe in polypyrrole0.5Ni0.4Co0.1Powder body microwave absorption is dispersed in
In the epoxy resin.
In the coating that the present invention is adopted, polypyrrole can form thin film when in use, as polypyrrole possesses electromagnetic absorption spy
Property, therefore which plays a part of film former and electromagnetic absorption simultaneously.The polypyrrole is with to be dispersed in which internal
Fe0.5Ni0.4Co0.1Together, the electromagnetic interference that electric elements excessive or other elements are produced absorbs powder body microwave absorption.
Sulfonated graphene-polyaniline composite fibre the preparation method of the present invention, including：
(1) graphite oxide is dissolved in into deionized water, adds sodium lauryl sulphate, ultrasonic agitation 1-4 hour, graphite oxide
Alkene:The mass ratio of dodecylbenzene sodium sulfonate is 1:20-1:100；
(2) 90-100 DEG C is warming up to, is added one to be hydrated hydrazine reaction 12-36 hours, is obtained black deposit；
(3) filter and be vacuum dried at 70-90 DEG C, obtain sulfonated graphene；
(4) by sulfonated graphene and Ammonium persulfate. with mass ratio 1:3-1:5 are dissolved in the hydrochloric acid solution of 0.5-2mol/L,
As water phase；
(5) aniline is dissolved in chloroform, as oil phase；
(6) by water phase and oil phase with sulfonated graphene:Aniline mass ratio is 1:1-1:10 are mixed, anti-at 0-5 DEG C
12-36 hours are answered, green product is obtained；
(7) green product is washed to colourless, vacuum drying, obtain the sulfonated graphene-polyaniline composite electrode material.
Therefore using the sulfonated graphene-polyaniline composite conducting material of the present invention together with film of poly pyrrole so that institute
State coating effectiveness excellent.
Electromagnetic screen coating of the present invention, which can be applicable to the surface of the electrical equipment such as household electrical appliance, computer, plays and change
Become color and luster, increase thermal diffusivity and realize electro-magnetic screen function.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of electromagnetic screen coating, including：Polypyrrole 40
Firming agent 2
Sulfonated graphene-polyaniline composite fibre 10,
Fe0.5Ni0.4Co0.1Powder body microwave absorption 5, and
Color dye 2；Wherein,
The sulfonated graphene-polyaniline composite fibre be sulfonated graphene-polyaniline bundle of composite fibers, the fibre bundle
Vertical distribution forms equidistant array, the Fe in polypyrrole0.5Ni0.4Co0.1Powder body microwave absorption is dispersed in
In the epoxy resin.
Embodiment 2
A kind of electromagnetic screen coating, including：Polypyrrole 60
Firming agent 10
Sulfonated graphene-polyaniline composite fibre 30,
Fe0.5Ni0.4Co0.1Powder body microwave absorption 15, and
Color dye 5；Wherein,
The sulfonated graphene-polyaniline composite fibre be sulfonated graphene-polyaniline bundle of composite fibers, the fibre bundle
Vertical distribution forms equidistant array, the Fe in polypyrrole0.5Ni0.4Co0.1Powder body microwave absorption is dispersed in
In the epoxy resin.
Embodiment 3
A kind of electromagnetic screen coating, including：Polypyrrole 50
Firming agent 5
Sulfonated graphene-polyaniline composite fibre 20,
Fe0.5Ni0.4Co0.1Powder body microwave absorption 10, and
Color dye 3；Wherein,
The sulfonated graphene-polyaniline composite fibre be sulfonated graphene-polyaniline bundle of composite fibers, the fibre bundle
Vertical distribution forms equidistant array, the Fe in polypyrrole0.5Ni0.4Co0.1Powder body microwave absorption is dispersed in
In the epoxy resin.
Claims (2)
1. a kind of electromagnetic screen coating, including：Polypyrrole 40-60
Firming agent 2-10
Sulfonated graphene-polyaniline composite fibre 10-30,
Fe0.5Ni0.4Co0.1Powder body microwave absorption 5-15, and
Color dye 2-5；Wherein,
The sulfonated graphene-polyaniline composite fibre is sulfonated graphene-polyaniline bundle of composite fibers, and the fibre bundle is vertical
It is dispersed in polypyrrole, forms equidistant array, the Fe0.5Ni0.4Co0.1Powder body microwave absorption is dispersed in described
In epoxy resin.
2. electromagnetic screen coating as claimed in claim 1, it is characterised in that the sulfonated graphene-polyaniline composite fibre
Preparation method, including：
(1) graphite oxide is dissolved in into deionized water, adds sodium lauryl sulphate, ultrasonic agitation 1-4 hour, graphene oxide:
The mass ratio of dodecylbenzene sodium sulfonate is 1:20-1:100；
(2) 90-100 DEG C is warming up to, is added one to be hydrated hydrazine reaction 12-36 hours, is obtained black deposit；
(3) filter and be vacuum dried at 70-90 DEG C, obtain sulfonated graphene；
(4) by sulfonated graphene and Ammonium persulfate. with mass ratio 1:3-1:5 are dissolved in the hydrochloric acid solution of 0.5-2mol/L, as
Water phase；
(5) aniline is dissolved in chloroform, as oil phase；
(6) by water phase and oil phase with sulfonated graphene:Aniline mass ratio is 1:1-1:10 are mixed, and at 0-5 DEG C react 12-
36 hours, obtain green product；
(7) green product is washed to colourless, vacuum drying, obtain the sulfonated graphene-polyaniline composite electrode material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012274.8A CN106519960A (en) | 2016-11-17 | 2016-11-17 | Electromagnetic shielding coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012274.8A CN106519960A (en) | 2016-11-17 | 2016-11-17 | Electromagnetic shielding coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106519960A true CN106519960A (en) | 2017-03-22 |
Family
ID=58352365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611012274.8A Pending CN106519960A (en) | 2016-11-17 | 2016-11-17 | Electromagnetic shielding coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN106519960A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449010A (en) * | 2014-12-26 | 2015-03-25 | 苏州格瑞丰纳米科技有限公司 | Polymer/graphene anti-static coating, preparation method and application thereof |
| CN105086377A (en) * | 2015-09-22 | 2015-11-25 | 苏州高通新材料科技有限公司 | Sulfonated graphene-conductive macromolecule dispersion liquid and preparing method and application thereof |
| CN106010118A (en) * | 2016-06-27 | 2016-10-12 | 北京理工大学珠海学院 | Epoxy resin paint with antistatic property and preparation method thereof |
-
2016
- 2016-11-17 CN CN201611012274.8A patent/CN106519960A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449010A (en) * | 2014-12-26 | 2015-03-25 | 苏州格瑞丰纳米科技有限公司 | Polymer/graphene anti-static coating, preparation method and application thereof |
| CN105086377A (en) * | 2015-09-22 | 2015-11-25 | 苏州高通新材料科技有限公司 | Sulfonated graphene-conductive macromolecule dispersion liquid and preparing method and application thereof |
| CN106010118A (en) * | 2016-06-27 | 2016-10-12 | 北京理工大学珠海学院 | Epoxy resin paint with antistatic property and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡礼初: "吸波材料的制备与电磁性能研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
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Application publication date: 20170322 |
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