CN108285722A - A kind of radiation shielding coating for large scale electronic equipment operational site - Google Patents
A kind of radiation shielding coating for large scale electronic equipment operational site Download PDFInfo
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- CN108285722A CN108285722A CN201810117430.XA CN201810117430A CN108285722A CN 108285722 A CN108285722 A CN 108285722A CN 201810117430 A CN201810117430 A CN 201810117430A CN 108285722 A CN108285722 A CN 108285722A
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- attapulgite
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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
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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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention belongs to technical field of coatings, and in particular to a kind of radiation shielding coating for large scale electronic equipment operational site.Contain following component in the coating:Epoxy resin, polymer emulsion, methyltrimethoxysilane, modified graphene, nano PbS O4Attapulgite, kaolin, talcum powder, hydroxypropyl methyl cellulose and nano-silver powder.The modification of wherein graphene needs to use ether and carbon tetrachloride mixed solvent, nano PbS O4Attapulgite is that attapulgite is carried out high-temperature activation, using adsorbing Pb after acidification2+It obtains.The excellent properties of the coating are stablized, and adhesive force is high, and film quality is higher, have good radiation-proof effect, also have sterilization bacteria-eliminating efficacy, are highly suitable for the electromagnetic isolation protection of large scale electronic equipment.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of radiation protection for large scale electronic equipment operational site applies
Material.
Background technology
Electronic equipment operational process will produce radiation, and this electromagnetic radiation can produce the normal activities of the biology of surrounding
Raw to influence, with the extension of distance, radiation intensity can continuously decrease for electromagnetic radiation, shadow of the lower electromagnetic radiation intensity to human body
Sound is smaller, such as receipts mobile phone, TV, micro-wave oven can all generate radiation, but since radiation intensity is relatively low, even if not taking
Any safeguard measure also will not generally produce harm.
But the electromagnetic radiation that large-scale power or electronic equipment generate is larger, influences, is generally required equipment in order to lower
Be arranged with the safe distance in the dense place of crowd except, or electromagnetic shielding is taken to equipment.Today, as people are to interconnection
Net service dependence, the construction also appearance as emerging rapidly in large numbersBamboo shoots after a spring rain of various network infrastructures, these equipment some may need
The place dense in crowd is set, to provide better service for people, it is therefore necessary to safeguard procedures are taken to these facilities,
Reduce influence of the electromagnetic field to surrounding resident.The application cost of conventional electromagnetic shielding facility such as electro-magnetic shielding cover is higher, unsuitable
Large-scale promotion;Radiation can also be reduced using radiation shielding coating, but effect is relatively poor.
Invention content
In view of the above problems, the purpose of the present invention is to provide a kind of radiation protections for large scale electronic equipment operational site
The radiation-proof effect of coating, the coating is preferable, and has relatively low use cost.
A kind of radiation shielding coating for large scale electronic equipment operational site contains according to mass fraction in radiation shielding coating
Have:100-150 parts of epoxy resin, 15-20 parts of polymer emulsion, 8-10 parts of methyltrimethoxysilane, modified graphene 30-35
Part, nano PbS O410-15 parts of attapulgite, 20-25 parts of kaolin, 15-25 parts of talcum powder, hydroxypropyl methyl cellulose 6-9
Part, 0.5-1 parts of nano-silver powder.
Preferably, according to mass fraction, contain in radiation shielding coating:120-130 parts of epoxy resin, polymer emulsion 17-
18 parts, 8-9 parts of methyltrimethoxysilane, 32-33 parts of modified graphene, nano PbS O413-14 parts of attapulgite, kaolin
22-23 parts, 20-23 parts of talcum powder, 7-8 parts of hydroxypropyl methyl cellulose, 0.7-0.9 parts of nano-silver powder.
Preferably, the preparation method of modified graphene is as follows:According to mass fraction, by 20-30 parts of graphenes and 40-60 parts
Ether and carbon tetrachloride mixed solvent are added in reaction kettle together, are reacted at a temperature of 80-90 DEG C, while with 80-
The rotating speed of 100r/min is sufficiently stirred 10-15min, and finally by organic solvent evaporation, obtained solid content is required modified stone
Black alkene.
Modification can improve the compatibility of graphene in the coating composition so that graphene uniform is dispersed in coating
In, play the effect of radiation protection.
Preferably, the mass ratio of ether and carbon tetrachloride is 1 in organic solvent:1.68.
Preferably, nano PbS O4The preparation method of attapulgite is:By the attapulgite powder that grain size is 250-300nm
Heated at a temperature of 300-500 DEG C, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 1.5-2mol/L into
Row activation process, it is dry after activation process, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again,
Obtain required nano PbS O4Attapulgite.
This attapulgite has preferable adsorption effect can be by Pb ionic adsorptions in bumps after activation process
In gap in stick soil particle, to which Pb ions to be fixed, it is then dispersed in coating and plays a role.
Preferably, polymer emulsion is one kind in styrene-acrylic emulsion, silicone acrylic emulsion, allyl lotion.
It is further preferred that the mesh number of kaolin and talcum powder is 400-500 mesh.
The preparation method of radiation shielding coating of the present invention includes the following steps:By modified graphene, nano PbS O4Concave convex rod
Soil, kaolin, talcum powder and nano-silver powder are pre-mixed uniformly, and then mixture and hydroxypropyl methyl cellulose are added together
It into epoxy resin, stirs in a kettle, methyltrimethoxysilane is added to reaction kettle while stirring
In, then polymer emulsion is added in reaction kettle, is stirred together with slurry, slurry is finally sent to ultrasonic dispersing machine
In, 15-20min is disperseed with the rotating speed ultrasonic wave of 1800-2100r/min, obtains required radiation shielding coating.
A kind of radiation shielding coating for large scale electronic equipment operational site provided by the invention, compared with prior art,
It has the following advantages:
A variety of materials with radiation-proof effect are added in the coating so that the radiation-proof effect of the coating is very excellent
The materials such as show, wherein attapulgite and graphene also pass through modification, keep its property more excellent, can be in coating very well
It is compatible, reduce paint ingredient between porosity, to further increase the effectiveness of coating.The preparation of coating
Also frequent ultrasonic wave dispersion in journey, this makes the property of coating more stablize, and is being easier to form a film using process, film layer structure causes
It is close, it is not easy to it is broken to fall off, there can be longer service life, play its functional effect.
In addition, the hydroxypropyl methyl cellulose in coating can improve the cohesive force of coating, nano-silver powder makes coating also
With good bactericidal effect.
The coating shield effectiveness is good, and uses for metal electro-magnetic shielding cover relatively, more convenient to use, work progress
In requirement to equipment and place it is also lower;Overall cost is also greatly reduced, and has good economic value.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Embodiment 1
A kind of radiation shielding coating for large scale electronic equipment operational site contains according to mass fraction in radiation shielding coating
Have:100 parts of epoxy resin, 15 parts of polymer emulsion, 8 parts of methyltrimethoxysilane, 30 parts of modified graphene, nano PbS O4
10 parts of attapulgite, 20 parts of kaolin, 15 parts of talcum powder, 6 parts of hydroxypropyl methyl cellulose, 0.5 part of nano-silver powder.
Wherein, the preparation method of modified graphene is as follows:According to mass fraction, by 20 parts of graphenes and 40 parts of ether and four
Chlorination carbon mixed solvent is added in reaction kettle together, is reacted at a temperature of 80 DEG C, while being filled with the rotating speed of 80r/min
Divide stirring 10min, finally by organic solvent evaporation, obtained solid content is required modified graphene;Ether in organic solvent
Mass ratio with carbon tetrachloride is 1:1.68.
Nano PbS O4The preparation method of attapulgite is:By grain size be 250-300nm attapulgite powder at 300 DEG C
At a temperature of heat, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 1.5mol/L and carry out activation process, it is living
It is dry after change processing, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again, obtain required nanometer
PbSO4Attapulgite.
Polymer emulsion is styrene-acrylic emulsion;The mesh number of kaolin and talcum powder is 400 mesh.
The preparation method of the radiation shielding coating includes the following steps:By modified graphene, nano PbS O4Attapulgite, height
Ridge soil, talcum powder and nano-silver powder are pre-mixed uniformly, and mixture and hydroxypropyl methyl cellulose are then added to ring together
It in oxygen resin, stirs in a kettle, methyltrimethoxysilane is added in reaction kettle by stirring while, is connect
It and polymer emulsion is added in reaction kettle, stirred together with slurry, finally slurry is sent in ultrasonic dispersing machine, with
The rotating speed ultrasonic wave of 1800r/min disperses 15min, obtains required radiation shielding coating.
Embodiment 2
A kind of radiation shielding coating for large scale electronic equipment operational site contains according to mass fraction in radiation shielding coating
Have:150 parts of epoxy resin, 20 parts of polymer emulsion, 10 parts of methyltrimethoxysilane, 35 parts of modified graphene, nano PbS O4
15 parts of attapulgite, 25 parts of kaolin, 25 parts of talcum powder, 9 parts of hydroxypropyl methyl cellulose, 1 part of nano-silver powder.
Wherein, the preparation method of modified graphene is as follows:According to mass fraction, by 30 parts of graphenes and 60 parts of ether and four
Chlorination carbon mixed solvent is added in reaction kettle together, is reacted at a temperature of 90 DEG C, while with the rotating speed of 100r/min
It is sufficiently stirred 15min, finally by organic solvent evaporation, obtained solid content is required modified graphene;Second in organic solvent
The mass ratio of ether and carbon tetrachloride is 1:1.68.
Nano PbS O4The preparation method of attapulgite is:By grain size be 250-300nm attapulgite powder at 500 DEG C
At a temperature of heat, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 2mol/L and carry out activation process, activate
It is dry after processing, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again, obtain required nanometer
PbSO4Attapulgite.
Polymer emulsion is silicone acrylic emulsion;The mesh number of kaolin and talcum powder is 500 mesh.
The preparation method of the radiation shielding coating includes the following steps:By modified graphene, nano PbS O4Attapulgite, height
Ridge soil, talcum powder and nano-silver powder are pre-mixed uniformly, and mixture and hydroxypropyl methyl cellulose are then added to ring together
It in oxygen resin, stirs in a kettle, methyltrimethoxysilane is added in reaction kettle by stirring while, is connect
It and polymer emulsion is added in reaction kettle, stirred together with slurry, finally slurry is sent in ultrasonic dispersing machine, with
The rotating speed ultrasonic wave of 2100r/min disperses 20min, obtains required radiation shielding coating.
Embodiment 3
A kind of radiation shielding coating for large scale electronic equipment operational site contains according to mass fraction in radiation shielding coating
Have:130 parts of epoxy resin, 17 parts of polymer emulsion, 9 parts of methyltrimethoxysilane, 33 parts of modified graphene, nano PbS O4
13 parts of attapulgite, 22 parts of kaolin, 20 parts of talcum powder, 7 parts of hydroxypropyl methyl cellulose, 0.8 part of nano-silver powder.
Wherein, the preparation method of modified graphene is as follows:According to mass fraction, by 25 parts of graphenes and 50 parts of ether and four
Chlorination carbon mixed solvent is added in reaction kettle together, is reacted at a temperature of 85 DEG C, while being filled with the rotating speed of 90r/min
Divide stirring 13min, finally by organic solvent evaporation, obtained solid content is required modified graphene;Ether in organic solvent
Mass ratio with carbon tetrachloride is 1:1.68.
Nano PbS O4The preparation method of attapulgite is:By grain size be 250-300nm attapulgite powder at 400 DEG C
At a temperature of heat, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 1.8mol/L and carry out activation process, it is living
It is dry after change processing, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again, obtain required nanometer
PbSO4Attapulgite.
Polymer emulsion is allyl lotion;The mesh number of kaolin and talcum powder is 450 mesh.
The preparation method of the radiation shielding coating includes the following steps:By modified graphene, nano PbS O4Attapulgite, height
Ridge soil, talcum powder and nano-silver powder are pre-mixed uniformly, and mixture and hydroxypropyl methyl cellulose are then added to ring together
It in oxygen resin, stirs in a kettle, methyltrimethoxysilane is added in reaction kettle by stirring while, is connect
It and polymer emulsion is added in reaction kettle, stirred together with slurry, finally slurry is sent in ultrasonic dispersing machine, with
The rotating speed ultrasonic wave of 1950r/min disperses 18min, obtains required radiation shielding coating.
Embodiment 4
A kind of radiation shielding coating for large scale electronic equipment operational site contains according to mass fraction in radiation shielding coating
Have:100 parts of epoxy resin, 20 parts of polymer emulsion, 8 parts of methyltrimethoxysilane, 32 parts of modified graphene, nano PbS O4
14 parts of attapulgite, 21 parts of kaolin, 15 parts of talcum powder, 9 parts of hydroxypropyl methyl cellulose, 0.7 part of nano-silver powder.
Wherein, the preparation method of modified graphene is as follows:According to mass fraction, by 20 parts of graphenes and 60 parts of ether and four
Chlorination carbon mixed solvent is added in reaction kettle together, is reacted at a temperature of 85 DEG C, while being filled with the rotating speed of 90r/min
Divide stirring 13min, finally by organic solvent evaporation, obtained solid content is required modified graphene;Ether in organic solvent
Mass ratio with carbon tetrachloride is 1:1.68.
Nano PbS O4The preparation method of attapulgite is:By grain size be 250-300nm attapulgite powder at 450 DEG C
At a temperature of heat, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 1.6mol/L and carry out activation process, it is living
It is dry after change processing, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again, obtain required nanometer
PbSO4Attapulgite.
Polymer emulsion is styrene-acrylic emulsion;The mesh number of kaolin and talcum powder is 400 mesh.
The preparation method of the radiation shielding coating includes the following steps:By modified graphene, nano PbS O4Attapulgite, height
Ridge soil, talcum powder and nano-silver powder are pre-mixed uniformly, and mixture and hydroxypropyl methyl cellulose are then added to ring together
It in oxygen resin, stirs in a kettle, methyltrimethoxysilane is added in reaction kettle by stirring while, is connect
It and polymer emulsion is added in reaction kettle, stirred together with slurry, finally slurry is sent in ultrasonic dispersing machine, with
The rotating speed ultrasonic wave of 1800r/min disperses 20min, obtains required radiation shielding coating.
Performance test
According to GB/T 5210-1985《The measuring method of coating adhesion pulls open method》To the adhesive force base of the present embodiment coating
This performance is detected, and detects the suction wave efficiency of the present embodiment, obtains following testing result:
Table 1:The properties testing result of the present embodiment coating
The above test data shows that the shielding property of the radiation shielding coating of the present embodiment is outstanding, and adhesive force is high, film layer knot
Structure is stablized, and is highly suitable for carrying out electromagnetic isolation protection in large scale electronic equipment operational site.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of radiation shielding coating for large scale electronic equipment operational site, it is characterised in that:It is described anti-according to mass fraction
Contain in radiation paint:100-150 parts of epoxy resin, 15-20 parts of polymer emulsion, 8-10 parts of methyltrimethoxysilane change
30-35 parts of graphene of property, nano PbS O410-15 parts of attapulgite, 20-25 parts of kaolin, 15-25 parts of talcum powder, hydroxypropyl first
6-9 parts of base cellulose, 0.5-1 parts of nano-silver powder.
2. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:It presses
According to mass fraction, contain in the radiation shielding coating:120-130 parts of epoxy resin, 17-18 parts of polymer emulsion, methyl trimethoxy
8-9 parts of oxysilane, 32-33 parts of modified graphene, nano PbS O413-14 parts of attapulgite, 22-23 parts of kaolin, talcum powder
20-23 parts, 7-8 parts of hydroxypropyl methyl cellulose, 0.7-0.9 parts of nano-silver powder.
3. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:
The preparation method of the modified graphene is as follows:According to mass fraction, by 20-30 parts of graphenes and 40-60 parts of ether and tetrachloro
Change carbon mixed solvent to be added in reaction kettle together, be reacted at a temperature of 80-90 DEG C, while with 80-100r/min's
Rotating speed is sufficiently stirred 10-15min, and finally by organic solvent evaporation, obtained solid content is required modified graphene.
4. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 3, it is characterised in that:Institute
It is 1 to state the mass ratio of ether and carbon tetrachloride in organic solvent:1.68.
5. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:Institute
State nano PbS O4The preparation method of attapulgite is:By grain size be 250-300nm attapulgite powder at 300-500 DEG C
At a temperature of heat, be added to after then cooling down attapulgite in the sulfuric acid of a concentration of 1.5-2mol/L and carry out activation process, it is living
It is dry after change processing, recycle the mode of Dynamic Adsorption to adsorb containing Pb2+Solution, be finally dried again, obtain required nanometer
PbSO4Attapulgite.
6. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:Institute
It is one kind in styrene-acrylic emulsion, silicone acrylic emulsion, allyl lotion to state polymer emulsion.
7. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:Institute
The mesh number for stating kaolin and talcum powder is 400-500 mesh.
8. a kind of radiation shielding coating for large scale electronic equipment operational site according to claim 1, it is characterised in that:Institute
The preparation method for stating coating includes the following steps:By modified graphene, nano PbS O4 attapulgites, kaolin, talcum powder and receive
Rice silver powder is pre-mixed uniformly, is then added in epoxy resin mixture and hydroxypropyl methyl cellulose together, is being reacted
It is stirred in kettle, methyltrimethoxysilane is added in reaction kettle by stirring while, then by polymer emulsion
It is added in reaction kettle, is stirred together with slurry, finally slurry is sent in ultrasonic dispersing machine, with 1800-2100r/min
Rotating speed ultrasonic wave disperse 15-20min, obtain required radiation shielding coating.
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Cited By (1)
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CN113698856A (en) * | 2021-09-14 | 2021-11-26 | 弘润清源(北京)科技有限责任公司 | Quick-drying anti-radiation interference high-hardness coating |
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