CN105368249B - Conductive anti-corrosive paints and preparation method thereof - Google Patents
Conductive anti-corrosive paints and preparation method thereof Download PDFInfo
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- CN105368249B CN105368249B CN201510782798.4A CN201510782798A CN105368249B CN 105368249 B CN105368249 B CN 105368249B CN 201510782798 A CN201510782798 A CN 201510782798A CN 105368249 B CN105368249 B CN 105368249B
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Abstract
The present invention relates to technical field of coatings, discloses a kind of conductive anti-corrosive paints, and the coating is mainly made up of the raw material of following mass fraction：3~5 parts of anti-oxidant 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, 7~10 parts of curing agent, 30~40 parts of ethyl acetate and coupling agent；The anti-oxidant copper powder is mainly made up of the raw material of following mass fraction：20~22 parts of epoxy resin, 65~70 parts of copper powder, 0.5~1 part of 3~4.5 parts of curing agent, 1~1.5 part of oleic acid, 1.5~2 parts of BTA and coupling agent.The conductive anti-corrosive paints of the present invention is using anti-oxidant copper powder and polyaniline-coated glass flake as main stuffing so that the existing good electric conductivity of the coating, there is good corrosion resistance again.
Description
Technical field
The present invention relates to technical field of coatings, particularly relates to a kind of conductive anti-corrosive paints and preparation method thereof.
Background technology
Grounded screen is in the power equipments such as power plant, transformer station, transmission line of electricity, it is ensured that working earthing, lightning protection, protection
The necessary safety devices of ground connection.As China's economy develops rapidly, newly-built substation capacity is continuously increased and put into operation and be defeated
Electric line is more and more, and the requirement to grounded screen is also more and more stricter.In the power systems such as transmission of electricity, power transformation, distribution, it is desirable to connect
The contact resistance of earth mat and the earth is the smaller the better.If grounded screen will operationally occur by heavy corrosion, charging equipment
Short circuit and blow grounded screen, cause current potential to raise, high voltage sneaking into secondary circuit causes personal equipment breakdown, therefore grounded screen is
One of important leverage of safe operation of power system, it can prevent power network high voltage sneaking into secondary circuit and operating system, so as to protect
The shield person and equipment safety.In China due to resource, economic dispatch reason, the material used in grounded screen is mainly ordinary carbon steel, its
Resistance to corrosion is poor.In addition, grounded screen is embedded in underground, maintenance and improvement cost are very high.Therefore the protection of grounded screen equipment
The problem of as power system normal operation and economical production institute in the urgent need to address.Exploitation has corrosion resistance and conducting function concurrently
Coating provides new way to solve the etching problem of earthing material.At present, the producer with producing electrically-conducting paint is developed in China
Less, its product quality is also very different.The corrosion resisting property of conductive coating is generally poor on the market, and the preferable anti-corrosion of corrosion resistance
Conductive coating performance is again very low.Therefore, develop have concurrently conductive and antiseptic property coating it is imperative.
The content of the invention
The present invention proposes a kind of conductive anti-corrosive paints and preparation method thereof, and solving can not realize have concurrently in the prior art
The problem of conductive and anti-corrosion property energy coating.
The conductive anti-corrosive paints of the present invention is mainly made up of the raw material of following mass fraction：Anti-oxidant copper powder 20~25
Part, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, 7~10 parts of curing agent, 30~40 parts of ethyl acetate and
3~5 parts of coupling agent；The anti-oxidant copper powder is mainly made up of the raw material of following mass fraction：20~22 parts of epoxy resin, copper
65~70 parts of powder, 0.5~1 part of 3~4.5 parts of curing agent, 1~1.5 part of oleic acid, 1.5~2 parts of BTA and coupling agent.
Wherein, the epoxy resin is E44.
Wherein, the curing agent is low molecule pa resin.
Wherein, the coupling agent is silane coupler.
Wherein, the copper powder is the flake copper of the mesh of size 180~220.
Present invention also offers a kind of conductive anti-corrosive paints preparation method, including：
S1：Prepare anti-oxidant copper powder：Choose 20~22 parts of epoxy resin, 65~70 parts of copper powder, 3~4.5 parts of curing agent, oil
1~1.5 part of acid, 0.5~1 part of 1.5~2 parts of BTA and silane coupler are uniformly made by mixing into described in mixer
Anti-oxidant copper powder；
S2：Make polyaniline-coated glass flake：Weigh 28~30 parts of neopelex and be dissolved in 100 parts of distillations
Stirring forms white emulsion in water, is then sequentially placed into 4.5~6 parts of glass flakes, 17.8~18.2 parts of aniline and 100~120
Part hydrochloric acid solution, after being dispersed with stirring, is slowly added dropwise at 1mol/L 100~120 parts, 0 DEG C of ammonium persulfate solution and reacts 12 hours
Stop reaction afterwards, add methanol demulsification, vacuum filtration, reaction product is repeatedly colourless to filtrate with distilled water flushing, afterwards 60
It is dried in vacuo 9~11 hours at DEG C, obtains polyaniline-coated glass flake；
S3：By anti-oxidant 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, solid
3~5 parts of 7~10 parts of agent, 30~40 parts of ethyl acetate and coupling agent are stirred in mixer and uniformly mixing.
Wherein, the epoxy resin is E44；Curing agent is low molecule pa resin；The coupling agent is silane coupled
Agent.
Wherein, the copper powder is the flake copper of the mesh of size 180~220.
The conductive anti-corrosive paints of the present invention is using anti-oxidant copper powder and polyaniline-coated glass flake as main stuffing so that
The existing good electric conductivity of the coating, there is good corrosion resistance again.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The conductive anti-corrosive paints of the present embodiment, is mainly made up of the raw material of following mass fraction：Anti-oxidant copper powder 20~
25 parts, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, 7~10 parts of curing agent, 30~40 parts of ethyl acetate
With 3~5 parts of coupling agent；The anti-oxidant copper powder is mainly made up of the raw material of following mass fraction：20~22 parts of epoxy resin, copper
65~70 parts of powder, 0.5~1 part of 3~4.5 parts of curing agent, 1~1.5 part of oleic acid, 1.5~2 parts of BTA and coupling agent.
Specifically, anti-oxidant 25 parts of copper powder, 9 parts of polyaniline-coated glass flake, 9 parts of epoxy resin, 8 parts of curing agent, second
4 parts of 35 parts of acetoacetic ester and coupling agent.Wherein, anti-oxidant copper powder is made by the raw material of following mass fraction：21 parts of epoxy resin, copper
68 parts of powder, 0.8 part of 4 parts of curing agent, 1.2 parts of oleic acid, 1.8 parts of BTA and coupling agent.
In the present embodiment, epoxy resin can be E44, and curing agent can be low molecule pa resin, and coupling agent can be with
For silane coupler (DB580).Wherein copper powder is the flake copper of the mesh of size 180~220.Such as 200 mesh.The piece of 180~220 mesh
Shape copper powder can either enable BTA fully be contacted with Copper Powder Surface, and the size of copper powder is also proper, avoid system
Into coating have a kind of granular sensation.
BTA can be adsorbed on copper surface, and generating conjugate diaphragm with good conductivity with cu+ prevents oxygen and copper
Powder contacts.Oleic acid has weak reproducibility, and Copper Powder Surface is wrapped in coating can prevent the oxidation on its surface.DB580 is carried
Polarity and nonpolar two kinds of groups, one end can combine with the mode of Copper Powder Surface chemical bonding, chemisorbed and surface covering；
The other end can crosslink reaction with matrix resin, improve the dispersiveness of copper powder.Sulphur atom and copper in DB580 mercapto propyl group simultaneously
Or its oxide is likely to form complex compound, so as to further improve antioxygenic property of the coupling agent to copper powder.
Polyaniline is good conducting polymer, in emulsion reaction system the presence of glass flake the polymerization life of monomer is provided
Elongated carrier, promote polyaniline to be grown to longer fibers, improve the electric conductivity of polyaniline.The structural analysis of composite shows,
Polyaniline is enriched in the surface of glass flake in electrically conductive composite so that compound show with polyaniline similar in surface nature
Higher electrical conductivity.The composite conductance prepared by testing emulsion method is up to 2.281S/cm.
Therefore the coating with both the above main stuffing (anti-oxidant copper powder and polyaniline-coated glass flake) is existing good
Good electric conductivity, has good corrosion resistance, meets being required for Electric Design again.The present embodiment makes conductive anticorrosive
The physical and chemical performance of paint coatings is as shown in table 1 below：
The physical and chemical performance of the conductive anti-corrosive paints coating of table 1
| Project | Performance indications |
| Outward appearance | It is smooth, it is smooth |
| Adhesive force/level | 2 |
| Pliability/mm | 2 |
| Hardness | 0.6 |
| Impact resistance/kg.cm | 50 |
| Electrical conductivity (S/cm) | 3.98×10ˉ2 |
| Surface drying time/h | ＜ 2 |
| Do solid work the time/h | ＜ 24 |
| Water resistance (500h) | It is non-foaming, do not fall off |
| Resistance to salt water (500h) | It is non-foaming, do not fall off |
The result of upper table shows that the physical and chemical performance of paint coatings fully meets electric power index.To adding anti-oxidant formula
The paint coatings of (i.e. the present embodiment formula) do SEM signs and antioxidation mechanism point with anti-oxidant paint formulation coating is not added with
Analysis：Anti-oxidant treatment is not done and is not added with the paint coatings of glass flake, copper powder skewness is obvious with resin boundary surface, and
Exposed to outer, it is oxidized easily, is partially formed conductive network, electric conductivity is larger in different zones difference.And pass through anti-oxidant place
The paint coatings of reason and addition glass flake not only improve the dispersion effect of copper powder in the coating, contribute to copper powder in resin
It is uniformly distributed, forms network-like conductive path, while protective layer, polyaniline-coated glass flake material are formd in Copper Powder Surface
It is arranged in parallel, ribbon vestige is shown, there is good corrosion resistance.
Present invention also offers a kind of conductive anti-corrosive paints preparation method, including：
Step S1, prepare anti-oxidant copper powder：Choose 20~22 parts of epoxy resin, 65~70 parts of copper powder, curing agent 3~4.5
Part, 1~1.5 part of oleic acid, 1.5~2 parts of BTA and 0.5~1 part of silane coupler are uniformly made by mixing in mixer
Into the anti-oxidant copper powder.
Step S2, make polyaniline-coated glass flake：Weigh 28~30 parts of neopelex and be dissolved in 100 parts
Stirring forms white emulsion in distilled water, is then sequentially placed into 4.5~6 parts of glass flakes, and 17.8~18.2 parts of aniline and 100~
120 parts of hydrochloric acid solutions, after being dispersed with stirring, it is small that reaction 12 at 1mol/L 100~120 parts, 0 DEG C of ammonium persulfate solution is slowly added dropwise
When after stop reaction, add methanol demulsification, vacuum filtration, reaction product repeatedly with distilled water flushing to filtrate colourless, Zhi Hou
It is dried in vacuo 9~11 hours at 60 DEG C, obtains polyaniline-coated glass flake.
Step S3, by anti-oxidant 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, epoxy resin 7~10
Part, 7~10 parts of curing agent, 30~40 parts of ethyl acetate and 3~5 parts of coupling agent are stirred in mixer and uniformly mixing.
Epoxy resin is E44, and curing agent is low molecule pa resin, and coupling agent is silane coupler, and copper powder is size
The flake copper of 180~220 mesh.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (6)
1. a kind of conductive anti-corrosive paints, it is characterised in that the coating is mainly made up of the raw material of following mass fraction：Antioxygen
Change 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, 7~10 parts of curing agent, acetic acid second
3~5 parts of 30~40 parts of ester and coupling agent；The anti-oxidant copper powder is mainly made up of the raw material of following mass fraction：Epoxy resin
20~22 parts, 65~70 parts of copper powder, 3~4.5 parts of curing agent, 1~1.5 part of oleic acid, 1.5~2 parts of BTA and coupling agent
0.5~1 part, the copper powder is the flake copper of the mesh of size 180~220；
The conductive anti-corrosive paints is prepared as follows made from method：
S1：Prepare anti-oxidant copper powder：Choose 20~22 parts of epoxy resin, 65~70 parts of copper powder, 3~4.5 parts of curing agent, oleic acid 1
~1.5 parts, 0.5~1 part of 1.5~2 parts of BTA and silane coupler be uniformly made by mixing into mixer it is described anti-
Cupric oxide powder, the copper powder are the flake copper of the mesh of size 180~220；
S2：Make polyaniline-coated glass flake：28~30 parts of neopelex is weighed to be dissolved in 100 parts of distilled water
Stirring forms white emulsion, is then sequentially placed into 4.5~6 parts of glass flakes, 17.8~18.2 parts of aniline and 100~120 portions of salt
Acid solution, after being dispersed with stirring, it is slowly added dropwise after being reacted 12 hours at 1mol/L 100~120 parts, 0 DEG C of ammonium persulfate solution and stops
Only react, add methanol demulsification, vacuum filtration, reaction product is repeatedly colourless to filtrate with distilled water flushing, afterwards at 60 DEG C
Vacuum drying 9~11 hours, obtains polyaniline-coated glass flake；
S3：By anti-oxidant 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, curing agent 7
3~5 parts of~10 parts, 30~40 parts of ethyl acetate and coupling agent are stirred in mixer and uniformly mixing.
2. conductive anti-corrosive paints as claimed in claim 1, it is characterised in that the epoxy resin is E44.
3. conductive anti-corrosive paints as claimed in claim 1, it is characterised in that the curing agent is Versamid tree
Fat.
4. conductive anti-corrosive paints as claimed in claim 1, it is characterised in that the coupling agent is silane coupler.
A kind of 5. conductive anti-corrosive paints preparation method described in claim 1, it is characterised in that including：
S1：Prepare anti-oxidant copper powder：Choose 20~22 parts of epoxy resin, 65~70 parts of copper powder, 3~4.5 parts of curing agent, oleic acid 1
~1.5 parts, 0.5~1 part of 1.5~2 parts of BTA and silane coupler be uniformly made by mixing into mixer it is described anti-
Cupric oxide powder, the copper powder are the flake copper of the mesh of size 180~220；
S2：Make polyaniline-coated glass flake：28~30 parts of neopelex is weighed to be dissolved in 100 parts of distilled water
Stirring forms white emulsion, is then sequentially placed into 4.5~6 parts of glass flakes, 17.8~18.2 parts of aniline and 100~120 portions of salt
Acid solution, after being dispersed with stirring, it is slowly added dropwise after being reacted 12 hours at 1mol/L 100~120 parts, 0 DEG C of ammonium persulfate solution and stops
Only react, add methanol demulsification, vacuum filtration, reaction product is repeatedly colourless to filtrate with distilled water flushing, afterwards at 60 DEG C
Vacuum drying 9~11 hours, obtains polyaniline-coated glass flake；
S3：By anti-oxidant 20~25 parts of copper powder, 8~10 parts of polyaniline-coated glass flake, 7~10 parts of epoxy resin, curing agent 7
3~5 parts of~10 parts, 30~40 parts of ethyl acetate and coupling agent are stirred in mixer and uniformly mixing.
6. conductive anti-corrosive paints preparation method as claimed in claim 5, it is characterised in that the epoxy resin is E44；Gu
Agent is low molecule pa resin；The coupling agent is silane coupler.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107196076A (en) * | 2017-06-12 | 2017-09-22 | 武城县光明电力工程有限公司 | A kind of electric anti-theft grounding pile |
| CN109054576A (en) * | 2018-05-23 | 2018-12-21 | 宁夏中科天际防雷研究院有限公司 | A kind of lightning-proof grounding body surface covering and preparation method thereof |
| CN109135496B (en) * | 2018-05-25 | 2020-08-18 | 宁夏中科天际防雷研究院有限公司 | Environment-friendly corrosion-resistant lightning-protection grounding electrode and preparation method thereof |
| CN116254037A (en) * | 2023-02-15 | 2023-06-13 | 沈阳理工大学 | Conductive anticorrosive paint, preparation method and application |
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|---|---|---|---|---|
| CN101643615A (en) * | 2008-08-06 | 2010-02-10 | 中国科学院金属研究所 | Polyaniline modified glass flake heavy-duty anti-corrosive coating and preparation method thereof |
| CN104021882A (en) * | 2014-06-12 | 2014-09-03 | 西安工程大学 | Method for preparing low-temperature copper electronic paste |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643615A (en) * | 2008-08-06 | 2010-02-10 | 中国科学院金属研究所 | Polyaniline modified glass flake heavy-duty anti-corrosive coating and preparation method thereof |
| CN104021882A (en) * | 2014-06-12 | 2014-09-03 | 西安工程大学 | Method for preparing low-temperature copper electronic paste |
Non-Patent Citations (1)
| Title |
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| 聚苯胺包覆玻璃鳞片复合物的制备与表征;倪楠楠等;《涂料工业》;20101130;第40卷(第11期);第19-23页 * |
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