CN107189578B - A kind of emulsion paint having electromagnetic shielding performance - Google Patents
A kind of emulsion paint having electromagnetic shielding performance Download PDFInfo
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- CN107189578B CN107189578B CN201710597649.XA CN201710597649A CN107189578B CN 107189578 B CN107189578 B CN 107189578B CN 201710597649 A CN201710597649 A CN 201710597649A CN 107189578 B CN107189578 B CN 107189578B
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- emulsion paint
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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
- C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- 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
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/028—Pigments; Filters
-
- 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
- C08K2003/0856—Iron
-
- 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
- C08K2003/0881—Titanium
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to emulsion paint preparation technical fields, disclose a kind of emulsion paint for having electromagnetic shielding performance, it is prepared according to following technique: 1) by deionized water, organic silicon defoaming agent, bentonite, silane coupling agent, hydroxyethyl cellulose and nano silica, it is added in de-airing mixer, 600rpm stirs 2h；2) esters coalescing agent alcohol ester 12, preservative and electromagnetic shielding agent are added in de-airing mixer, and 30min is then stirred with the revolving speed of 1000rpm；3) polyvinyl acetate emulsion, ammonia type thickener and stearic acid are added in de-airing mixer, then with the revolving speed of 1000rpm stirring 30min to get.Emulsion paint of the present invention has preferable electromagnetic wave shielding.
Description
Technical field
The invention belongs to emulsion paint preparation technical fields, are related to a kind of emulsion paint for having electromagnetic shielding performance.
Background technique
Information machine room includes a large amount of information data switching equipment, and electromagnetic radiation threatens that people's is strong than more serious
Health.The phenomenon that electromagnetic wave that the interaction variation of electric and magnetic fields generates, electromagnetism wave direction air-launched or leakage, cry electromagnetic radiation.
Electromagnetic radiation is substance existing for invisible, impalpable specific form with one kind.It is centered around mankind's natural magnetic field at one's side, too
Sunlight, household electrical appliance etc. can all issue the different radiation of intensity, influence of the electromagnetic wave of radiation to human health increasingly by
To the concern of the mankind.The scientific research personnel for being engaged in related fields prevents damage caused by radiation using various measures, including uses
Stereotype isolation, radiation-proof mask and clothes etc..The prior art needs to research and develop a kind of emulsion paint for having electromagnetic shielding performance.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of emulsion paints for having electromagnetic shielding performance.
The present invention is realized by following scheme:
A kind of emulsion paint having electromagnetic shielding performance, is prepared according to following technique:
1) by deionized water, organic silicon defoaming agent, bentonite, silane coupling agent, hydroxyethyl cellulose and nanometer two
Silica is added in de-airing mixer, and 600rpm stirs 2h；
2) added in de-airing mixer esters coalescing agent alcohol ester 12, preservative and electromagnetic shielding agent, then with
The revolving speed of 1000rpm stirs 30min；
3) polyvinyl acetate emulsion, ammonia type thickener and stearic acid are added in de-airing mixer, then with
1000rpm revolving speed stirring 30min to get.
Further, in parts by weight, deionized water is 100-150 parts, organic silicon defoaming agent is 3-5 parts, swelling
Soil is 1-2 parts, silane coupling agent is 1-2 parts, hydroxyethyl cellulose is 2-3 parts, nano silica is 1-2 parts, esters film forming
Auxiliary agent is 0.3-0.5 parts, preservative is 0.1-0.2 parts, electromagnetic shielding agent is 2-3 parts, polyvinyl acetate emulsion is 40-70 parts,
Ammonia type thickener is 2-3 parts, stearic acid is 1-2 parts.
Further, the electromagnetic shielding agent is prepared according to following technique:
Barium sulfate, iron powder and titanium valve are added in the ball grinder containing dehydrated alcohol according to the mass ratio of 3:2:2, mixed
It is even, according to ratio of grinding media to material be 10:1 weight ratio be added aluminium oxide ceramic ball, ball milling temperature be room temperature, drum's speed of rotation 500rpm,
Material is milled to 500 mesh, evaporates dehydrated alcohol, obtains electromagnetic shielding agent.
Preferably, the organic silicon defoaming agent is SN154.
Preferably, the preservative is BIOX CM.
Preferably, the ammonia type thickener is Acrysol RM-12W.
The beneficial effect of starting point and acquirement of the invention mainly includes but is not limited to the following aspects:
The present invention is added to iron powder and titanium valve on the basis of barium sulfate, is milled to suitable partial size, can not reduce cream
Under the premise of shellac varnish performance, electromagnetic shielding performance is improved；
Hydroxyethyl cellulose passes through the evenly dispersed consistency that can greatly increase system, improves filler dispersion process, facilitates
It obtains in a short time fully dispersed；
Nano material has large specific surface area, the special performance such as strong, good, thermal resistance of dispersion performance of superficial attractive forces, with it
Superior stability, reinforcing, thickening property and thixotropy, when through siloxanes coupling processing, siloxanes one end and nano material with
Chemical bond combines, and other end of amido functional group can be chemically reacted with organic material, enhance organic material and
The combination of nano material phase interface, improves histocompatbility and surface flatness；
Silane coupling agent of the present invention reduces the tension on bentonite surface, its surface is made to be easier to be soaked by other organic matters,
It is sufficiently mixed with organic matter；
It is mutually coordinated between each component material of the present invention, pass through big change of variable condition, parameter, by Dan Yin for the applicant
Son experiment, factorial experiment obtain, and the application operating parameter is that inventor obtains through creative work operation, and preparation process is simple
It is feasible, agent is electromagnetically shielded by addition, improves electromagnetic shielding performance.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, having below in conjunction with the application
Body embodiment more clearly and completely describes the present invention, it is clear that described embodiment is only the application one
Divide embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making
Every other embodiment obtained, should fall within the scope of the present invention under the premise of creative work.
Embodiment 1
A kind of emulsion paint having electromagnetic shielding performance, is prepared according to following technique:
Following raw material for standby: 100 parts of deionized water, 3 parts of organic silicon defoaming agent, 1 part of bentonite, silicon are taken according to parts by weight
1 part of alkane coupling agent, 2 parts of hydroxyethyl cellulose, 1 part of nano silica, 0.3 part of esters coalescing agent, 0.1 part of preservative, electricity
2 parts of magnetic screen agent, 40 parts of polyvinyl acetate emulsion, 2 parts of ammonia type thickener, 1 part of stearic acid；
Barium sulfate, iron powder and titanium valve are added in the ball grinder containing dehydrated alcohol according to the mass ratio of 3:2:2, mix,
Aluminium oxide ceramic ball is added according to the weight ratio that ratio of grinding media to material is 10:1, ball milling temperature is room temperature, drum's speed of rotation 500rpm, by object
Pellet is milled to 500 mesh, evaporates dehydrated alcohol, obtains electromagnetic shielding agent；
By deionized water, organic silicon defoaming agent SN154, bentonite, silane coupling agent, hydroxyethyl cellulose and nanometer
Silica is added in de-airing mixer, and 600rpm stirs 2h；
Added in de-airing mixer esters coalescing agent alcohol ester 12, preservative and electromagnetic shielding agent, then with
The revolving speed of 1000rpm stirs 30min；
Polyvinyl acetate emulsion, ammonia type thickener Acrysol RM-12W and tristearin are added in de-airing mixer
Acid, then with the revolving speed of 1000rpm stirring 30min to get.
Embodiment 2
A kind of emulsion paint having electromagnetic shielding performance, is prepared according to following technique:
Following raw material for standby: 150 parts of deionized water, 5 parts of organic silicon defoaming agent, 2 parts of bentonite, silicon are taken according to parts by weight
12 parts of alkane coupling agent, 23 parts of hydroxyethyl cellulose, 2 parts of nano silica, 0.5 part of esters coalescing agent, 0.2 part of preservative,
It is electromagnetically shielded 3 parts of agent, 70 parts of polyvinyl acetate emulsion, 3 parts of ammonia type thickener, 2 parts of stearic acid；
Barium sulfate, iron powder and titanium valve are added in the ball grinder containing dehydrated alcohol according to the mass ratio of 3:2:2, mix,
Aluminium oxide ceramic ball is added according to the weight ratio that ratio of grinding media to material is 10:1, ball milling temperature is room temperature, drum's speed of rotation 500rpm, by object
Pellet is milled to 500 mesh, evaporates dehydrated alcohol, obtains electromagnetic shielding agent；
By deionized water, organic silicon defoaming agent SN154, bentonite, silane coupling agent, hydroxyethyl cellulose and nanometer
Silica is added in de-airing mixer, and 600rpm stirs 2h；
Added in de-airing mixer esters coalescing agent alcohol ester 12, preservative and electromagnetic shielding agent, then with
The revolving speed of 1000rpm stirs 30min；
Polyvinyl acetate emulsion, ammonia type thickener Acrysol RM-12W and tristearin are added in de-airing mixer
Acid, then with the revolving speed of 1000rpm stirring 30min to get.
Embodiment 3
The emulsion paint performance test of 1-2 of embodiment of the present invention preparation, is specifically shown in Table 1:
Table 1
| Project | Embodiment 1 | Embodiment 2 |
| Coating thickness um | 200 | 200 |
| Adhesive force (cross-hatching) | 1 | 1 |
| Electromagnetic wave attenuation rate (%) 5000MHZ | 88.4 | 92.6 |
| Sheet resistance Ω/sq | 9.3×105 | 9.5×105 |
| Salt fog resistance 480h | It is not blistering, do not fall off, without whitening, without cracking | It is not blistering, do not fall off, without whitening, without cracking |
| Water resistance 480h | It is not blistering, do not fall off, without whitening, without cracking | It is not blistering, do not fall off, without whitening, without cracking |
| 50 DEG C of thermodynamic stability, 7 days | Without layering and precipitating, effect is normal | Without layering and precipitating, effect is normal |
| 3% sodium chloride of salt water resistance, 480h | It is not blistering, do not fall off, without whiten, corrugationless | It is not blistering, do not fall off, without whiten, corrugationless |
| Hardness | 5H | 5H |
| MEK wipes test | Reciprocal wiping 100 times, no bottom drain and dissolution | Reciprocal wiping 100 times, no bottom drain and dissolution |
Embodiment 4
Agent is electromagnetically shielded to test electromagnetic shielding performance:
By taking electromagnetic wavelength is 3000MHZ as an example, six groups are set, are experimental group respectively: 2 groups of embodiment；Control 1:
Using barium sulfate；Control 2: iron powder is used；Control 3: titanium valve is used；Control 4: barium sulfate and iron powder are used；Control 5: sulphur is used
Sour barium and titanium valve；Other raw materials and step of control group are the same as embodiment 2.The complete phase of amount for the radiation protection auxiliary material that six groups use
Together, has comparative sense.Concrete outcome is shown in Table 2:
Table 2
| Group | Electromagnetic wave attenuation rate (%) |
| Experimental group | 91.7 |
| Control 1 | 61.3 |
| Control 2 | 53.4 |
| Control 3 | 48.1 |
| Control 4 | 76.8 |
| Control 5 | 80.6 |
Conclusion: by table 2 as it can be seen that the electromagnetic wave attenuation rate effect of emulsion paint of the present invention is substantially better than each control group, display
Compatibility is reasonable between three kinds of raw materials of electromagnetic shielding agent, and synergisticing performance is good.
Although inventor has done more detailed elaboration to technical solution of the present invention and has enumerated, it should be understood that right
For those of ordinary skill in the art, revealed content according to the present invention, modifications to the embodiments described above may be made and/or changes
Become or is the present invention it will be apparent that it cannot all be detached from the scope of protection of present invention using equivalent alternative solution
In protection scope be subject to the claim limited in detail in the claims.
Claims (3)
1. a kind of emulsion paint for having electromagnetic shielding performance, is prepared according to following technique:
1) by deionized water, organic silicon defoaming agent, bentonite, silane coupling agent, hydroxyethyl cellulose and nanometer titanium dioxide
Silicon is added in de-airing mixer, and 600rpm stirs 2h；
2) added in de-airing mixer esters coalescing agent alcohol ester 12, preservative and electromagnetic shielding agent, then with
The revolving speed of 1000rpm stirs 30min；
3) polyvinyl acetate emulsion, ammonia type thickener and stearic acid are added in de-airing mixer, then with 1000rpm's
Revolving speed stir 30min to get;
It is characterized in that, in parts by weight, deionized water is 100-150 parts, organic silicon defoaming agent is 3-5 parts, bentonite
For 1-2 parts, silane coupling agent be 1-2 parts, hydroxyethyl cellulose is 2-3 parts, nano silica is 1-2 parts, esters film forming helps
Agent is 0.3-0.5 parts, preservative is 0.1-0.2 parts, electromagnetic shielding agent is 2-3 parts, polyvinyl acetate emulsion is 40-70 parts, ammonia
Type thickener is 2-3 parts, stearic acid is 1-2 parts;
The electromagnetic shielding agent is prepared according to following technique:
Barium sulfate, iron powder and titanium valve are added in the ball grinder containing dehydrated alcohol according to the mass ratio of 3:2:2, mixes, presses
Aluminium oxide ceramic ball is added according to the weight ratio that ratio of grinding media to material is 10:1, ball milling temperature is room temperature, drum's speed of rotation 500rpm, by material
500 mesh are milled to, dehydrated alcohol is evaporated, obtain electromagnetic shielding agent.
2. emulsion paint according to claim 1, which is characterized in that the organic silicon defoaming agent is SN154.
3. emulsion paint according to claim 1, which is characterized in that the ammonia type thickener is Acrysol RM-12W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597649.XA CN107189578B (en) | 2017-07-21 | 2017-07-21 | A kind of emulsion paint having electromagnetic shielding performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597649.XA CN107189578B (en) | 2017-07-21 | 2017-07-21 | A kind of emulsion paint having electromagnetic shielding performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107189578A CN107189578A (en) | 2017-09-22 |
| CN107189578B true CN107189578B (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710597649.XA Expired - Fee Related CN107189578B (en) | 2017-07-21 | 2017-07-21 | A kind of emulsion paint having electromagnetic shielding performance |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115991953A (en) * | 2023-02-13 | 2023-04-21 | 浙江绿环新材料科技有限公司 | Preparation process of modified epoxy resin powder coating with electromagnetic shielding function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104151992A (en) * | 2014-07-29 | 2014-11-19 | 青岛国强环保科技有限公司 | Paint with electromagnetic shielding effect |
| CN106916495A (en) * | 2017-02-24 | 2017-07-04 | 玉林龙升建筑装饰工程有限公司 | A kind of moistureproof emulsion paint and preparation method thereof |
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