CN106928788A - A kind of conductive coating and preparation method thereof - Google Patents
A kind of conductive coating and preparation method thereof Download PDFInfo
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- CN106928788A CN106928788A CN201710181046.1A CN201710181046A CN106928788A CN 106928788 A CN106928788 A CN 106928788A CN 201710181046 A CN201710181046 A CN 201710181046A CN 106928788 A CN106928788 A CN 106928788A
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- 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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C08K5/00—Use of organic ingredients
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- C08K7/00—Use of ingredients characterised by shape
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C08K2201/001—Conductive additives
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- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a kind of conductive coating and preparation method thereof, the conductive coating includes bond coating and the composite base bed of material, and bond coating is coated on base material, and the composite base bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：40 60 parts of polytetrafluoroethylene (PTFE), 3 10 parts of glass fibre, 0.8 1.6 parts of carbon fiber, 59 parts of graphite powder, 13 parts of dodecyl sodium sulfate, the composite base bed of material include the raw material of following weight portion：20 36 parts of epoxy resin, 12 20 parts of ultra-fine calcium silicates, 5 10 parts of PBDE, 36 parts of vinyl bis-stearamides, 30 60 parts of toluene, 0.8 3.8 parts of conductive black.Conductive coating electric conductivity of the invention is good, and adhesive force is strong, and anti-impact force is good, it is ensured that the conductive stability of base material.
Description
Technical field
The present invention relates to the coatings art of conducting base, and in particular to a kind of conductive coating and preparation method thereof.
Background technology
A kind of functional material that conductive coating is the high speed development recently as coatings industry and modern industry and occurs,
It is a kind of coating with certain conduction electric current and dissipation electrostatic charge ability.Typically by scattered conductive nano graphite bag
Cover particle etc. to be constituted, it can provide splendid static conductive performance, be one layer of protection energy-absorbing layer.Conventional processing method
Conductive coating made by mainly with conducting polymer as film forming matter, or added based on high molecular polymer conductive
Material, is achieved the goal using the electric action of conductive materials, it is not only both had conducting function, while having high score again
Many excellent specific properties of sub- polymer, can in a big way it is interior according to using need adjust coating electricity and mechanical property,
It is simple and easy to apply and cost is relatively low, thus obtain relatively broad application.
Polytetrafluoroethylene (PTFE) is commonly referred to as " non-sticking lining " or " material easy to clean ", and it has antiacid alkali resistant, anti-organic solvent
The characteristics of, it is practically insoluble in all of solvent.Meanwhile, polytetrafluoroethylene (PTFE) has resistant to elevated temperatures feature, and its coefficient of friction is extremely low,
It is the desired coating of non-stick pan, water pipe inner lining, mould.After being modified to it, the dielectric of frequency range wider can be obtained
Constant and dielectric loss.The patent of invention of Authorization Notice No. CN103587164B discloses a kind of conductive coating, including bottom and
Surface layer, the bottom is by 70 parts of ptfe emulsion in parts by weight, 6.8 ~ 7.1 parts of phosphoric acid, chromic acid 6.8 ~ 7.2
Part, 0.7 ~ 1.0 part of lauryl sodium sulfate, 1.6 ~ 2.0 parts of chrome green, 8 ~ 9 parts of water, polyphenylene sulfide 0.5 ~ 0.8
Part, 5 ~ 7.5 parts of graphite, 1 ~ 2.5 part of conductive black is formulated；The surface layer is by polytetrafluoroethylene (PTFE) breast in parts by weight
90 parts of liquid, 0.7 ~ 0.9 part of lauryl sodium sulfate, 10 ~ 11 parts of water, 2 ~ 2.5 parts of polyphenylene sulfide, graphite 5 ~ 7.5
Part, 1 ~ 3 part of conductive black is formulated.The conductive coating hardness is big, is difficult to scratch, and conducts electricity very well, but electric conductivity
Have much room for improvement with anti-impact force.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of conductive coating and its preparation side
Method, the conductive coating electric conductivity is good, and adhesive force is strong, and anti-impact force is good, it is ensured that the conductive stability of base material.
The present invention solves technical problem and adopts the following technical scheme that：
The invention provides a kind of conductive coating, including bond coating and the composite base bed of material, bond coating is coated on base material,
The composite base bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：Polytetrafluoroethylene (PTFE) 40-60
Part, glass fibre 3-10 parts, carbon fiber 0.8-1.6 parts, graphite powder 5-9 parts, dodecyl sodium sulfate 1-3 parts；
The composite base bed of material includes the raw material of following weight portion：Epoxy resin 20-36 parts, ultra-fine calcium silicates 12-20 parts, many bromines
Biphenyl Ether 5-10 parts, 3-6 parts, toluene 30-60 parts, conductive black 0.8-3.8 parts of vinyl bis-stearamides.
Preferably, the bond coating includes the raw material of following weight portion：45 parts of polytetrafluoroethylene (PTFE), 7 parts of glass fibre, carbon
1.2 parts of fiber, 6 parts of graphite powder, 3 parts of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：28 parts of epoxy resin, 17 parts of ultra-fine calcium silicates, PBDE
5 parts, 3 parts of vinyl bis-stearamides, 46 parts of toluene, 2.6 parts of conductive black.
Preferably, the fineness of the ultra-fine calcium silicates is 400-600 mesh.
Preferably, the epoxide equivalent of the epoxy resin is 460-480.
Preferably, the PBDE is octa-BDE or decabromodiphenyl oxide.
The preparation method of above-mentioned conductive coating, comprises the following steps：
（1）The preparation of bond coating：Glass fibre, carbon fiber, graphite powder are mixed according to weight portion, after stirring, crosses 80-
100 mesh sieves, obtain mixed-powder particle, add polytetrafluoroethylene (PTFE), dodecyl sodium sulfate, autoclave are put into, in 200-220
DEG C, under conditions of 1-2MPa after stirring reaction 2-3 hours, cooling obtains bond coating；
（2）The preparation of the composite base bed of material：Mix ultra-fine calcium silicates, conductive black, after carrying out ultramicro grinding, with epoxy resin, first
After benzene, vinyl bis-stearamides are mixed, 180-220 DEG C is warming up to, after reaction 15-20min, is slowly added to PBBs
Ether, is cooled to 140-150 DEG C and continues to react 20-30min, and ultrasonic 20min obtains the composite base bed of material；
（3）The pre-treatment of base material：Treating sprayed surface clean and grinding process, successively with ethanol, acetone to sprayed surface
Cleaned, it is standby after drying；
（4）The spraying of conductive coating：After bond coating is dried in 140-150 DEG C, it is fitted into the first powder feeder, the composite base bed of material
After being dried in 160-180 DEG C, it is fitted into the second powder feeder, using the mode of internal powder conveying successively by bond coating and the composite base bed of material
It is sprayed on base material, spraying sinters 5-10min after finishing at 340-360 DEG C, and outdoor is cooled to room temperature and obtains the conductive coating.
Preferably, the step（2）The frequency range of ultrasound is 16-25KHz.
Preferably, the step（3）Ethanol, acetone are pure for analysis, are without obvious granule foreign to clean to substrate surface
Preferably.
Preferably, the step（4）Bond coating thickness after spraying is 100-120 μm, and the thickness of the composite base bed of material is
60-80μm。
Compared with prior art, the present invention has following beneficial effect：
（1）Conductive coating of the invention includes bond coating and the composite base bed of material, wherein, bond coating utilizes glass fibre, carbon
The conductive graphite powder of fiber, high temperature resistant, anion surfactant dodecyl sodium sulfate are modified to polytetrafluoroethylene (PTFE), make
Obtain that the layer material has temperature range wide, wearability is good, chemical stability is excellent, coefficient of friction is small and the characteristics of excellent ageing properties；
The epoxy resin that the composite base bed of material uses dielectric properties, stability, hardness high is main component, with reference to the ultra-fine of heat-resistant fireproof
Calcium silicates, PBDE, vinyl bis-stearamides, the excellent carbon black of electric conductivity so that the binder layer filming performance is good,
Hardness is big, high temperature resistant, can effective release electrostatic.
（2）The preparation method of conductive coating of the present invention sprays base material using internal powder conveying method so that product stripping effect is good, leads
Good electrical property, reliable in quality.
Specific embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：45 parts of polytetrafluoroethylene (PTFE), glass fibre
7 parts, 1.2 parts of carbon fiber, 6 parts of graphite powder, 3 parts of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：28 parts of epoxy resin, 17 parts of ultra-fine calcium silicates, octa-BDE
5 parts, 3 parts of vinyl bis-stearamides, 46 parts of toluene, 2.6 parts of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
The preparation method of above-mentioned conductive coating, comprises the following steps：
（1）The preparation of bond coating：Glass fibre, carbon fiber, graphite powder are mixed according to weight portion, after stirring, crosses 80-
100 mesh sieves, obtain mixed-powder particle, add polytetrafluoroethylene (PTFE), dodecyl sodium sulfate, autoclave are put into, in 200-220
DEG C, under conditions of 1-2MPa after stirring reaction 2-3 hours, cooling obtains bond coating；
（2）The preparation of the composite base bed of material：Mix ultra-fine calcium silicates, conductive black, after carrying out ultramicro grinding, with epoxy resin, first
After benzene, vinyl bis-stearamides are mixed, 180-220 DEG C is warming up to, after reaction 15-20min, is slowly added to PBBs
Ether, is cooled to 140-150 DEG C and continues to react 20-30min, and frequency 16-25KHz ultrasounds 20min obtains the composite base bed of material；
（3）The pre-treatment of base material：Treating sprayed surface clean and grinding process, successively with analytically pure ethanol, acetone pair
Sprayed surface is cleaned, and is advisable without obvious granule foreign with cleaning to substrate surface, standby after drying；
（4）The spraying of conductive coating：After bond coating is dried in 140-150 DEG C, it is fitted into the first powder feeder, the composite base bed of material
After being dried in 160-180 DEG C, it is fitted into the second powder feeder, using the mode of internal powder conveying successively by bond coating and the composite base bed of material
It is sprayed on base material, spraying sinters 5-10min after finishing at 340-360 DEG C, and outdoor is cooled to room temperature and obtains the conductive coating,
Bond coating thickness after spraying is 100-120 μm, and the thickness of the composite base bed of material is 60-80 μm.
Embodiment 2.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：40 parts of polytetrafluoroethylene (PTFE), glass fibre
3 parts, 1.4 parts of carbon fiber, 6 parts of graphite powder, 1 part of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：20 parts of epoxy resin, 13 parts of ultra-fine calcium silicates, octa-BDE
5 parts, 3 parts of vinyl bis-stearamides, 36 parts of toluene, 0.8 part of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
Preparation method is same as Example 1.
Embodiment 3.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：48 parts of polytetrafluoroethylene (PTFE), glass fibre
5 parts, 1.6 parts of carbon fiber, 6 parts of graphite powder, 2 parts of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：24 parts of epoxy resin, 15 parts of ultra-fine calcium silicates, octa-BDE
6 parts, 4 parts of vinyl bis-stearamides, 42 parts of toluene, 1.6 parts of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
Preparation method is same as Example 1.
Embodiment 4.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：52 parts of polytetrafluoroethylene (PTFE), glass fibre
5 parts, 1.3 parts of carbon fiber, 8 parts of graphite powder, 1 part of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：28 parts of epoxy resin, 16 parts of ultra-fine calcium silicates, octa-BDE
3 parts, 6 parts of vinyl bis-stearamides, 46 parts of toluene, 2.2 parts of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
Preparation method is same as Example 1.
Embodiment 5.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：55 parts of polytetrafluoroethylene (PTFE), glass fibre
3 parts, 1.4 parts of carbon fiber, 6 parts of graphite powder, 1 part of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：32 parts of epoxy resin, 18 parts of ultra-fine calcium silicates, octa-BDE
10 parts, 5 parts of vinyl bis-stearamides, 52 parts of toluene, 3.2 parts of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
Preparation method is same as Example 1.
Embodiment 6.
The conductive coating of the present embodiment, including bond coating and the composite base bed of material, bond coating are coated on base material, composite base
The bed of material is coated on bond coating, and the bond coating includes the raw material of following weight portion：60 parts of polytetrafluoroethylene (PTFE), glass fibre
10 parts, 0.8 part of carbon fiber, 9 parts of graphite powder, 3 parts of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：36 parts of epoxy resin, 18 parts of ultra-fine calcium silicates, octa-BDE
10 parts, 6 parts of vinyl bis-stearamides, 58 parts of toluene, 2.6 parts of conductive black.
Wherein, the fineness of ultra-fine calcium silicates is 400-600 mesh, and the epoxide equivalent of epoxy resin is 460-480.
Preparation method is same as Example 1.
Embodiment 7.
Conductive coating in embodiment 1-6 is carried out into adhesive force and impact resistance, conductivity test, concrete outcome such as following table institute
Show
| Embodiment | Adhesive force (kg/cm2) | Anti-impact force (kg/cm) | Conductance (%IACS) |
| 1 | 6.8 | 325 | 35 |
| 2 | 6.2 | 315 | 32 |
| 3 | 6.2 | 306 | 31 |
| 4 | 6.0 | 304 | 28 |
| 5 | 5.4 | 291 | 29 |
| 6 | 5.6 | 298 | 28 |
As can be seen from the above table, the adhesive force of the conductive coating, impact resistance, conductance function admirable, higher than general conduction
Coating.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of conductive coating, including bond coating and the composite base bed of material, bond coating are coated on base material, the composite base bed of material
It is coated on bond coating, it is characterised in that the bond coating includes the raw material of following weight portion：Polytetrafluoroethylene (PTFE) 40-60
Part, glass fibre 3-10 parts, carbon fiber 0.8-1.6 parts, graphite powder 5-9 parts, dodecyl sodium sulfate 1-3 parts；
The composite base bed of material includes the raw material of following weight portion：Epoxy resin 20-36 parts, ultra-fine calcium silicates 12-20 parts, many bromines
Biphenyl Ether 5-10 parts, 3-6 parts, toluene 30-60 parts, conductive black 0.8-3.8 parts of vinyl bis-stearamides.
2. conductive coating according to claim 1, it is characterised in that the bond coating includes the original of following weight portion
Material：45 parts of polytetrafluoroethylene (PTFE), 7 parts of glass fibre, 1.2 parts of carbon fiber, 6 parts of graphite powder, 3 parts of dodecyl sodium sulfate；
The composite base bed of material includes the raw material of following weight portion：28 parts of epoxy resin, 17 parts of ultra-fine calcium silicates, PBDE
5 parts, 3 parts of vinyl bis-stearamides, 46 parts of toluene, 2.6 parts of conductive black.
3. conductive coating according to claim 1, it is characterised in that the fineness of the ultra-fine calcium silicates is 400-600 mesh.
4. conductive coating according to claim 1, it is characterised in that the epoxide equivalent of the epoxy resin is 460-480.
5. conductive coating according to claim 1, it is characterised in that the PBDE is octa-BDE or ten bromines
Biphenyl Ether.
6. the preparation method of the conductive coating according to claim 1-5, it is characterised in that comprise the following steps：
（1）The preparation of bond coating：Glass fibre, carbon fiber, graphite powder are mixed according to weight portion, after stirring, crosses 80-
100 mesh sieves, obtain mixed-powder particle, add polytetrafluoroethylene (PTFE), dodecyl sodium sulfate, autoclave are put into, in 200-220
DEG C, under conditions of 1-2MPa after stirring reaction 2-3 hours, cooling obtains bond coating；
（2）The preparation of the composite base bed of material：Mix ultra-fine calcium silicates, conductive black, after carrying out ultramicro grinding, with epoxy resin, first
After benzene, vinyl bis-stearamides are mixed, 180-220 DEG C is warming up to, after reaction 15-20min, is slowly added to PBBs
Ether, is cooled to 140-150 DEG C and continues to react 20-30min, and ultrasonic 20min obtains the composite base bed of material；
（3）The pre-treatment of base material：Treating sprayed surface clean and grinding process, successively with ethanol, acetone to sprayed surface
Cleaned, it is standby after drying；
（4）The spraying of conductive coating：After bond coating is dried in 140-150 DEG C, it is fitted into the first powder feeder, the composite base bed of material
After being dried in 160-180 DEG C, it is fitted into the second powder feeder, using the mode of internal powder conveying successively by bond coating and the composite base bed of material
It is sprayed on base material, spraying sinters 5-10min after finishing at 340-360 DEG C, and outdoor is cooled to room temperature and obtains the conductive coating.
7. the preparation method of conductive coating according to claim 6, it is characterised in that the step（2）The frequency of ultrasound
Scope is 16-25KHz.
8. the preparation method of conductive coating according to claim 6, it is characterised in that the step（3）Ethanol,
Acetone is pure for analysis, is advisable without obvious granule foreign with cleaning to substrate surface.
9. the preparation method of conductive coating according to claim 6, it is characterised in that the step（4）It is viscous after spraying
Knot underlayer thickness is 100-120 μm, and the thickness of the composite base bed of material is 60-80 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181046.1A CN106928788A (en) | 2017-03-24 | 2017-03-24 | A kind of conductive coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108753059A (en) * | 2018-04-16 | 2018-11-06 | 南通康尔乐复合材料有限公司 | A kind of conductive tape primary coat and its preparation process |
| CN114752264A (en) * | 2022-03-30 | 2022-07-15 | 连云港天邦科技开发有限公司 | Anti-wall-hanging heat-insulation coating material, preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076708A (en) * | 1992-03-20 | 1993-09-29 | 傅宏生 | Flame-retarding anti-static coating and preparation method thereof |
| CN103587164A (en) * | 2013-11-13 | 2014-02-19 | 湖北三江航天江河化工科技有限公司 | Conductive coating |
-
2017
- 2017-03-24 CN CN201710181046.1A patent/CN106928788A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076708A (en) * | 1992-03-20 | 1993-09-29 | 傅宏生 | Flame-retarding anti-static coating and preparation method thereof |
| CN103587164A (en) * | 2013-11-13 | 2014-02-19 | 湖北三江航天江河化工科技有限公司 | Conductive coating |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108753059A (en) * | 2018-04-16 | 2018-11-06 | 南通康尔乐复合材料有限公司 | A kind of conductive tape primary coat and its preparation process |
| WO2019200793A1 (en) * | 2018-04-16 | 2019-10-24 | 南通康尔乐复合材料有限公司 | Conductive tape base coating and preparation process therefor |
| CN114752264A (en) * | 2022-03-30 | 2022-07-15 | 连云港天邦科技开发有限公司 | Anti-wall-hanging heat-insulation coating material, preparation method and application thereof |
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