CN115029047A - Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof - Google Patents
Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof Download PDFInfo
- Publication number
- CN115029047A CN115029047A CN202210719480.1A CN202210719480A CN115029047A CN 115029047 A CN115029047 A CN 115029047A CN 202210719480 A CN202210719480 A CN 202210719480A CN 115029047 A CN115029047 A CN 115029047A
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- component
- conductive
- zinc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004593 Epoxy Substances 0.000 title claims abstract description 88
- 239000000835 fiber Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 61
- 239000002904 solvent Substances 0.000 claims abstract description 51
- 239000007822 coupling agent Substances 0.000 claims abstract description 41
- 239000000049 pigment Substances 0.000 claims abstract description 39
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 34
- 150000001412 amines Chemical class 0.000 claims abstract description 30
- 239000003822 epoxy resin Substances 0.000 claims abstract description 30
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 30
- 239000011701 zinc Substances 0.000 claims abstract description 28
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 28
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 26
- 239000002270 dispersing agent Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 21
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000002041 carbon nanotube Substances 0.000 claims description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 claims description 2
- 229910021485 fumed silica Inorganic materials 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000000839 emulsion Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 3
- JOLVYUIAMRUBRK-UHFFFAOYSA-N 11',12',14',15'-Tetradehydro(Z,Z-)-3-(8-Pentadecenyl)phenol Natural products OC1=CC=CC(CCCCCCCC=CCC=CCC=C)=C1 JOLVYUIAMRUBRK-UHFFFAOYSA-N 0.000 description 2
- YLKVIMNNMLKUGJ-UHFFFAOYSA-N 3-Delta8-pentadecenylphenol Natural products CCCCCCC=CCCCCCCCC1=CC=CC(O)=C1 YLKVIMNNMLKUGJ-UHFFFAOYSA-N 0.000 description 2
- JOLVYUIAMRUBRK-UTOQUPLUSA-N Cardanol Chemical compound OC1=CC=CC(CCCCCCC\C=C/C\C=C/CC=C)=C1 JOLVYUIAMRUBRK-UTOQUPLUSA-N 0.000 description 2
- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 description 2
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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
- C09D5/24—Electrically-conducting 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
- C08K2003/0893—Zinc
Abstract
The invention relates to a conductive fiber-containing low-zinc-content epoxy primer and a preparation method thereof, wherein the conductive fiber-containing low-zinc-content epoxy primer is composed of a component A, a component B and conductive fibers in a mass ratio of 6 (0.8-1.2), wherein the component A comprises the following raw materials in parts by weight: 10-30 parts of solvent, 10-30 parts of epoxy resin, 0.5-6 parts of thixotropic agent, 0.5-2 parts of coupling agent, 2-7 parts of conductive pigment, 20-60 parts of zinc powder, 5-20 parts of filler, 0.2-1 part of defoaming agent, 0.2-1 part of flatting agent and 0.5-3 parts of dispersing agent; the component B comprises the following raw materials in parts by weight: 10-30 parts of solvent and 60-70 parts of amine epoxy curing agent; 0.01-20 parts of conductive fiber. Compared with the prior art, the conductive fiber is added into the low-zinc epoxy primer, so that the conductive performance inside a coating film is enhanced, the utilization rate of zinc powder inside the coating is improved, the salt spray resistance of the primer is greatly improved on the premise of ensuring the basic performance, and the long-acting protection performance of the primer is ensured.
Description
Technical Field
The invention relates to the technical field of coatings, relates to a method for preparing a low-zinc epoxy primer, and more particularly relates to a low-zinc epoxy primer containing conductive fibers and a preparation method thereof.
Background
The epoxy zinc powder primer is an important steel structure heavy-duty anticorrosive coating, and people continuously strive to improve the long-acting protective performance, avoid frequent renovation and improve the health friendliness to people and the environment at present. The utilization rate of zinc powder in the traditional zinc-rich primer is low, people can only improve the long-acting protective performance of the primer by improving the content of the zinc powder, but great material loss is also caused, and a large amount of zinc smoke is generated when a metal material coated by the primer with high zinc powder content is welded and cut, so that the health of workers is seriously influenced. Therefore, a primer with low zinc content, high corrosion resistance and salt spray resistance is urgently needed.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides the low-zinc-content zinc epoxy powder primer which has the advantages of improving the utilization rate of zinc powder, prolonging the protection effect of a coating, saving energy, reducing consumption, improving the environmental protection, health and friendliness and the like.
In order to achieve the purpose, the technical scheme of the low-zinc-content epoxy primer is as follows.
An epoxy primer with low zinc content, which consists of a component A, a component B and conductive fibers,
the component A comprises the following raw materials in parts by weight:
10-30 parts of solvent, 10-30 parts of epoxy resin, 0.5-6 parts of thixotropic agent, 0.5-2 parts of coupling agent, 2-7 parts of conductive pigment, 20-60 parts of zinc powder, 0.01-20 parts of filler, 0.2-1 part of defoaming agent, 0.2-1 part of flatting agent and 0.5-3 parts of dispersing agent.
The component B comprises the following raw materials in parts by weight:
10-30 parts of solvent and 60-70 parts of amine epoxy curing agent;
0.01-20 parts of conductive fiber is added into the component A or the component B.
0.01-20 parts of conductive fibers.
Preferably, the conductive fiber is 0.05-10 parts.
Further, the conductive fiber is composed of one or more of polymers with microscopic fibrous structure characteristics and conductive performance or fibers with conductive performance, such as carbon fibers, metal fibers, polyaniline, polyacetylene, polythiophene and the like.
Further, the length of the conductive fiber is 0.5mm-6mm, and the conductive fiber is composed of one or more length mixtures.
Further, the solvent is composed of one or more of ethanol, n-butanol, isopropanol, xylene and butyl acetate.
Further, the epoxy resin is composed of one or more of epoxy resins E51, E44, F51 and E20.
Further, the thixotropic agent is composed of one or more of fumed silica, bentonite, cellulose ether, polyamide wax and hydrogenated castor oil.
Further, the coupling agent is composed of one or a mixture of more of an aminosilane coupling agent, an epoxy silane coupling agent and a vinyl silane coupling agent. The aminosilane coupling agent is KH550 or KH602, the epoxy silane coupling agent is KH560, and the vinyl silane coupling agents are KH151 and KH 171.
Further, the conductive pigment is composed of one or a mixture of more of carbon black, graphite, iron oxide black, aluminum pigment and carbon nano tube; the zinc powder is composed of one or a mixture of spherical zinc powder and flaky zinc powder.
The filler is composed of one or a mixture of more of glass flakes, ferrophosphorus powder, feldspar powder and wollastonite.
The defoaming agent is composed of one or more of NEW-312, NEW-301, A525 and A530.
The leveling agent is composed of one or a mixture of more of NEW-303, NEW-233 and BYK-333.
The dispersant is composed of one or more of NEW-111, EFKA4010, S-8000, NEW-114 and NEW-166.
The amine epoxy curing agent is composed of one or a mixture of polyether amine, polyamide, modified fatty amine and cardanol modified amine.
The further preferred scheme is as follows:
preferably, the component A comprises: 15-30 parts of solvent, 17-27 parts of epoxy resin, 3-6 parts of thixotropic agent, 0.5-2 parts of coupling agent, 3-6 parts of conductive pigment, 35-55 parts of zinc powder, 8-15 parts of filler, 0.2-1 part of defoaming agent, 0.2-1 part of flatting agent and 0.5-3 parts of dispersing agent.
Preferably, the component B comprises: 20-30 parts of solvent and 60-70 parts of amine epoxy curing agent.
Preferably, the conductive fiber is 0.05-10 parts.
Preferably, the solvent consists of one or more of ethanol, n-butanol and xylene.
Preferably, the epoxy resin is epoxy resin E51.
Preferably, the thixotropic agent consists of one or more mixtures of organic bentonite and polyamide wax.
Preferably, the coupling agent is composed of one or more of aminosilane coupling agent and epoxy silane coupling agent. The amino silane coupling agent is KH550, and the epoxy silane coupling agent is KH 560.
Preferably, the conductive pigment is composed of one or a mixture of graphite, iron oxide black and aluminum pigment.
Preferably, the zinc powder consists of one or a mixture of spherical zinc powder and flaky zinc powder.
Preferably, the filler is composed of one of glass flakes, ferrophosphorus powder or a mixture thereof.
Preferably, the antifoaming agent is NEW-312.
Preferably, the leveling agent is NEW-233.
Preferably, the dispersant is NEW-166.
Preferably, the amine epoxy curing agent is composed of one of polyamide and cardanol modified amine or a mixture thereof
The invention also provides a preparation method of the low-zinc-content epoxy primer, which adopts the technical scheme that the epoxy primer comprises the following components in parts by weight:
preparing a component A: mixing solvent, adjuvant and coupling agent, adding thixotropic agent, conductive pigment and zinc powder under low speed stirring, stirring at low speed for 10min, adding epoxy resin and filler under stirring, and stirring at medium speed for 20min to obtain component A.
Preparing a component B: and (3) mixing the amine epoxy curing agent with a solvent, and slowly stirring for 10min to prepare the component B.
And adding the conductive fiber into the component A or the component B during stirring.
Compared with the prior art, the invention has the advantages and beneficial effects that:
(1) the invention discloses an innovative metal surface protection material and develops a conductive fiber-containing two-component low-zinc-content epoxy zinc powder primer.
(2) The conductive fiber is added into the low-zinc epoxy primer, so that the conductive performance inside a coating film is enhanced, the utilization rate of zinc powder inside the coating is improved, the salt spray resistance of the primer is greatly improved on the premise of ensuring the basic performance, and the long-acting protection performance of the primer is ensured.
Detailed Description
The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated.
The invention provides a double-component low-zinc-content epoxy primer which is composed of a component A, a component B and conductive fibers.
For comparison, comparative examples 1 to 3 are also provided.
Compared with examples 1-11, the main difference of comparative example 1 is that; (prepared with 25 parts zinc powder without the addition of conductive fiber) comparative example 2 differs mainly in that; (prepared with 30 parts zinc powder without the addition of conductive fibers); comparative example 3 differs mainly in that; (prepared with 40 parts of zinc powder without adding conductive fibers).
The raw material types of the above examples 1 to 11 and comparative examples 1 to 3 were selected as follows:
example 1
The component A comprises: 15 parts of solvent, 20 parts of epoxy resin, 6 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
0.05 part of conductive fiber.
The preparation method of the above example is as follows:
(1) the solvent, the auxiliary agent and the coupling agent are uniformly mixed, the thixotropic agent, the conductive pigment and the zinc powder are added under low-speed stirring, the epoxy resin and the filler are added after uniform mixing, and the component A containing the conductive fiber is prepared after uniform stirring at medium speed.
(2) And (3) mixing the amine epoxy curing agent with a solvent, and uniformly stirring to obtain the component B.
Example 2
The component A comprises: 18 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
0.3 part of conductive fiber.
The preparation method of the above example is the same as that of example 1.
Example 3
The component A comprises: 20 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
Conductive fibers 1.
The preparation method of the above example is the same as that of example 1.
Example 4
The component A comprises: 25 parts of solvent, 20 parts of epoxy resin, 3 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
And 2 parts of conductive fibers.
The preparation method of the above example is the same as example 1.
Example 5
The component A comprises: 27 parts of solvent, 20 parts of epoxy resin, 3 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
5 parts of conductive fiber
The preparation method of the above example is the same as that of example 1.
Example 6
The component A comprises: 30 parts of solvent, 20 parts of epoxy resin, 3 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
10 parts of conductive fibers.
The preparation method of the above example is the same as that of example 1.
Example 7
The component A comprises: 20 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 2 parts of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above example is as follows:
(1) the solvent, the auxiliary agent and the coupling agent are mixed uniformly, the thixotropic agent, the conductive pigment and the zinc powder are added under low-speed stirring, the epoxy resin and the filler are added after uniform mixing, and the component A is prepared by medium-speed stirring.
(2) And mixing the amine epoxy curing agent with a solvent, uniformly stirring, and adding the conductive fiber to prepare the component B containing the conductive fiber.
Example 8
The component A comprises: 30 parts of solvent, 20 parts of epoxy resin, 5 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 2 parts of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above example is the same as that of example 7.
Example 9
The component A comprises: 30 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 2 parts of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above example is the same as that of example 7.
Example 10
The component A comprises: 30 parts of solvent, 20 parts of epoxy resin, 3 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 2 parts of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above example is the same as that of example 7.
Example 11
The component A comprises: 30 parts of solvent, 20 parts of epoxy resin, 3 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 2 parts of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 3 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above example is the same as that of example 7.
Comparative example 1
The component A comprises: 20 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The preparation method of the above comparative example is as follows:
(1) the solvent, the auxiliary agent and the coupling agent are mixed uniformly, the thixotropic agent, the conductive pigment and the zinc powder are added under low-speed stirring, the epoxy resin and the filler are added after uniform mixing, and the component A is prepared by high-speed stirring.
(2) And (3) mixing the amine epoxy curing agent with a solvent, and uniformly stirring to obtain the component B.
Comparative example 2
The component A comprises: 20 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 30 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The above comparative example was prepared in the same manner as in comparative example 1.
Comparative example 3
The component A comprises: 20 parts of solvent, 20 parts of epoxy resin, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of solvent and 70 parts of amine epoxy curing agent.
The above comparative example was prepared in the same manner as in comparative example 1.
The compositions of the raw materials of the low-zinc-content epoxy primers of examples 1 to 11 and comparative examples 1 to 3 are shown in the following table (parts by mass)
TABLE 1 compositions of raw materials for low zinc content epoxy primers for examples 1-11 and comparative examples 1-3.
Wherein the mass ratio of the component A to the component B is 6: 1.
The preparation method of the epoxy zinc-rich primer with low zinc content comprises the following steps:
(1) preparation of the component A: uniformly mixing a solvent, an auxiliary agent and a coupling agent, adding a thixotropic agent, a conductive pigment and zinc powder under low-speed stirring, stirring at a low speed for 10min, uniformly mixing, adding epoxy resin and a filler under stirring, stirring at a medium speed for 20min, adding conductive fibers under stirring, and stirring at a high speed to obtain the component A containing the conductive fibers.
(2) B, preparation of a component: and (3) mixing the amine epoxy curing agent with a solvent, and slowly stirring for 10min to prepare the component B.
Simultaneously provides a water-based double-component low-zinc-content epoxy primer which consists of a component A and a component B.
Compared with examples 12-14, the main difference of comparative example 4 is that; (prepared with 25 parts zinc powder without the addition of conductive fiber) comparative example 5 differs mainly in that; (prepared with 30 parts zinc powder without the addition of conductive fibers); comparative example 6 is mainly different in that; (prepared with 40 parts of zinc powder without adding conductive fibers).
The raw material types of the above examples 12 to 14 and comparative examples 4 to 6 were selected as follows:
example 12
The component A comprises: 15 parts of water, 20 parts of water-based epoxy curing agent, 6 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
0.05 part of conductive fiber.
The preparation method of the above example is as follows:
(1) mixing water, assistant and coupling agent, adding thixotropic agent, conductive pigment and zinc powder under low speed stirring, adding water-thinned epoxy curing agent and stuffing, adding conductive fiber after stirring at medium speed, and preparing component A containing conductive fiber.
(2) And mixing the self-made epoxy emulsion with water, and uniformly stirring to prepare the component B.
Example 13
The component A comprises: 15 parts of water, 20 parts of water-based epoxy curing agent, 6 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
0.05 part of conductive fiber.
The preparation method of the above example is the same as example 12.
Example 14
The component A comprises: 15 parts of water, 20 parts of water-based epoxy curing agent, 6 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 40 parts of zinc powder, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
0.05 part of conductive fiber.
The preparation method of the above example is the same as example 12.
Comparative example 4
The component A comprises: 20 parts of water, 20 parts of water-based epoxy curing agent, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
The preparation method of the above comparative example is as follows:
(1) mixing water, assistant and coupling agent, adding thixotropic agent, conductive pigment and zinc powder under low-speed stirring, adding waterborne epoxy curing agent and filler after mixing uniformly, and stirring at high speed to obtain the component A.
(2) And mixing the self-made epoxy emulsion with water, and uniformly stirring to obtain the component B.
Comparative example 5
The component A comprises: 20 parts of water, 20 parts of water-based epoxy curing agent, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
The above comparative example was prepared in the same manner as in comparative example 4.
Comparative example 6
The component A comprises: 20 parts of water, 20 parts of water-based epoxy curing agent, 4 parts of thixotropic agent, 1 part of coupling agent, 4 parts of conductive pigment, 25 parts of zinc powder, 0 part of conductive fiber, 10 parts of filler, 0.5 part of defoaming agent, 0.5 part of flatting agent and 2 parts of dispersing agent.
The component B comprises: 30 parts of water and 70 parts of self-made epoxy emulsion.
The above comparative example was prepared in the same manner as in comparative example 4.
The compositions of the raw materials of the waterborne low-zinc-content epoxy primers of examples 12 to 14 and comparative examples 4 to 6 are shown in the following table (parts by mass)
Table 2 compositions of the raw materials of the low zinc content epoxy primers of examples 12 to 14 and comparative examples 4 to 6.
The preparation method of the low-zinc-content epoxy zinc-rich primer comprises the following steps:
(1) preparation of the component A: mixing water, an auxiliary agent and a coupling agent uniformly, adding a thixotropic agent, a conductive pigment and zinc powder under low-speed stirring, stirring at low speed for 10min, stirring uniformly, adding a water-based epoxy curing agent and a filler while stirring, stirring at medium speed for 20min, adding a conductive fiber while stirring, and stirring at high speed to obtain the component A.
(2) B, preparation of a component: and mixing the self-made epoxy emulsion with water, and slowly stirring for 10min to prepare the component B.
Test example
The low zinc content epoxy primers of examples 1-14 and comparative examples 1-6 were tested for performance according to established criteria, as shown in table 3, and the results are shown in tables 4 and 5:
TABLE 3 Performance test standards for the low zinc content epoxy zinc rich primers of examples 1-14 and comparative examples 1-6
TABLE 4 Performance test results of the low-zinc epoxy primers of examples 1 to 11 and comparative examples 1 to 3
TABLE 5 Performance test results of the low-zinc epoxy primers of examples 12 to 14 and comparative examples 4 to 6
| Main technical parameters | Example 12 | Example 13 | Example 14 | Comparative example 4 | Comparative example 5 | Comparative example 6 |
| Adhesion (MPa) | 9.5 | 9.8 | 9.8 | 8.5 | 9.0 | 8.9 |
| Impact resistance (cm) | 50 | 50 | 50 | 50 | 50 | 50 |
| Salt spray resistance (h) | 900 | 1000 | 1200 | 500 | 500 | 600 |
As can be seen from tables 4 and 5: after the conductive fiber is added into the low-zinc epoxy zinc powder primer, the basic performance is kept equal when the content of zinc powder is reduced compared with that when the zinc powder is not added, and the primer has excellent salt spray corrosion resistance.
The above embodiments are merely specific illustrations of the present invention, which are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and should not be construed as limiting the present invention. All equivalent changes, modifications, substitutions, combinations and simplifications made according to the spirit of the invention should be regarded as equivalents and all included in the scope of the invention.
Claims (10)
1. The low-zinc-content epoxy primer is characterized in that: consists of a component A, a component B and conductive fibers,
the component A comprises the following raw materials in parts by weight:
10-30 parts of solvent, 10-30 parts of epoxy resin, 0.5-6 parts of thixotropic agent, 0.5-2 parts of coupling agent, 2-7 parts of conductive pigment, 20-60 parts of zinc powder, 0.01-20 parts of filler, 0.2-1 part of defoaming agent, 0.2-1 part of flatting agent and 0.5-3 parts of dispersing agent.
The component B comprises the following raw materials in parts by weight:
10-30 parts of solvent and 60-70 parts of amine epoxy curing agent;
0.01-20 parts of conductive fiber is added into the component A or the component B.
2. The low zinc content epoxy primer according to claim 1, characterized in that: the conductive fiber is composed of one or a mixture of polymers with the characteristic of microscopic fibrous structures and conductive performance or fibers with the conductive performance.
3. The low zinc content epoxy primer according to claim 1, characterized in that: the length of the conductive fiber is 0.5mm-6 mm.
4. The low zinc content epoxy primer according to claim 3, characterized in that: 0.05-10 parts of conductive fibers.
5. The low zinc content epoxy primer according to claim 1, characterized in that: the solvent is composed of one or a mixture of ethanol, n-butanol, isopropanol, xylene and butyl acetate.
6. The low zinc content epoxy primer according to claim 1, characterized in that: the epoxy resin is composed of one or a mixture of more of epoxy resins E51, E44, F51 and E20.
7. The low zinc content epoxy primer according to claim 1, characterized in that: the thixotropic agent is composed of one or a mixture of more of fumed silica, bentonite, cellulose ether, polyamide wax and hydrogenated castor oil.
8. The low zinc content epoxy primer according to claim 1, characterized in that: the coupling agent is composed of one or a mixture of more of an aminosilane coupling agent, an epoxy silane coupling agent and a vinyl silane coupling agent. The aminosilane coupling agent is KH550 or KH602, the epoxy silane coupling agent is KH560, and the vinyl silane coupling agents are KH151 and KH 171.
9. The low zinc content epoxy primer according to claim 1, characterized in that: the conductive pigment is composed of one or a mixture of more of carbon black, graphite, iron oxide black, aluminum pigment and carbon nano tubes; the zinc powder is composed of one or a mixture of spherical zinc powder and flaky zinc powder.
10. A preparation method of low-zinc-content epoxy primer comprises the following steps: the method is characterized in that: according to the mixture ratio:
uniformly mixing a solvent, an auxiliary agent and a coupling agent, adding a thixotropic agent, a conductive pigment and zinc powder under low-speed stirring, stirring at a low speed for 10min, uniformly mixing, adding an epoxy resin and a filler under stirring, and stirring at a medium speed for 20min to prepare the component A;
mixing the amine epoxy curing agent with a solvent, and slowly stirring for 10min to prepare the component B;
and adding the conductive fiber into the component A or the component B during stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719480.1A CN115029047A (en) | 2022-06-23 | 2022-06-23 | Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719480.1A CN115029047A (en) | 2022-06-23 | 2022-06-23 | Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115029047A true CN115029047A (en) | 2022-09-09 |
Family
ID=83126454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210719480.1A Pending CN115029047A (en) | 2022-06-23 | 2022-06-23 | Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115029047A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521684A (en) * | 2022-09-30 | 2022-12-27 | 山西米洞虐电子科技有限公司 | Anticorrosive paint for inner wall of petroleum storage tank and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440891A (en) * | 2015-12-25 | 2016-03-30 | 海南大学 | Anticorrosive coating and preparation method thereof |
| CN105623473A (en) * | 2016-03-25 | 2016-06-01 | 信和新材料股份有限公司 | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid |
| CN107099219A (en) * | 2017-05-09 | 2017-08-29 | 中国科学院海洋研究所 | A kind of polyaniline-modified epoxy zinc powder composite coating and preparation method |
| CN108239467A (en) * | 2018-01-08 | 2018-07-03 | 上海海事大学 | A kind of graphene-polyaniline composite heavy corrosion protection coating and preparation method thereof |
| CN109294388A (en) * | 2018-08-02 | 2019-02-01 | 无锡泰科纳米新材料有限公司 | A kind of graphene anticorrosive paint and preparation method thereof |
| CN114213937A (en) * | 2021-12-30 | 2022-03-22 | 北京碧海云智新材料技术有限公司 | Zinc-rich powder coating and preparation method and application thereof |
-
2022
- 2022-06-23 CN CN202210719480.1A patent/CN115029047A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105440891A (en) * | 2015-12-25 | 2016-03-30 | 海南大学 | Anticorrosive coating and preparation method thereof |
| CN105623473A (en) * | 2016-03-25 | 2016-06-01 | 信和新材料股份有限公司 | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid |
| CN107099219A (en) * | 2017-05-09 | 2017-08-29 | 中国科学院海洋研究所 | A kind of polyaniline-modified epoxy zinc powder composite coating and preparation method |
| CN108239467A (en) * | 2018-01-08 | 2018-07-03 | 上海海事大学 | A kind of graphene-polyaniline composite heavy corrosion protection coating and preparation method thereof |
| CN109294388A (en) * | 2018-08-02 | 2019-02-01 | 无锡泰科纳米新材料有限公司 | A kind of graphene anticorrosive paint and preparation method thereof |
| CN114213937A (en) * | 2021-12-30 | 2022-03-22 | 北京碧海云智新材料技术有限公司 | Zinc-rich powder coating and preparation method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521684A (en) * | 2022-09-30 | 2022-12-27 | 山西米洞虐电子科技有限公司 | Anticorrosive paint for inner wall of petroleum storage tank and preparation method thereof |
| CN115521684B (en) * | 2022-09-30 | 2023-12-29 | 山西米洞虐电子科技有限公司 | Petroleum storage tank inner wall anti-corrosion paint and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102533029B (en) | Aqueous asphalt imitation anticorrosion coating for container chassis and preparation method thereof | |
| CN102031053B (en) | Anti-corrosion coating for surface of steel structure and preparation method thereof | |
| CN110499086B (en) | Silicon-oxide-graphene-containing composite powder solvent-free epoxy coating and preparation method and application thereof | |
| CN105733403B (en) | Paint of two-coating system of water-based container and preparation method and coating process thereof | |
| CN103351787B (en) | A kind of mechanized equipment low prepared surface high-performance anti-corrosive primer and preparation method | |
| CN111363448B (en) | Solvent-free antistatic matte epoxy floor compound | |
| CN105623473A (en) | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid | |
| CN102020904A (en) | Low-temperature quick-drying waterborne metal anti-corrosive coating and preparation method thereof | |
| CN111363450A (en) | Modified epoxy anticorrosive paint and preparation method and application thereof | |
| CN1840586A (en) | Aqueous inorganic silicate zinc-rich primer | |
| CN112341904A (en) | Quick-drying water-based epoxy anti-corrosion primer and preparation method thereof | |
| CN115029047A (en) | Conductive fiber-containing low-zinc-content epoxy primer and preparation method thereof | |
| CN110922857A (en) | Water-based epoxy zinc-rich anti-rust primer for railway steel bridge and preparation method thereof | |
| CN110938350A (en) | Epoxy primer for rail transit and preparation method thereof | |
| CN112457698A (en) | Graphene-modified zinc powder, preparation method and application of graphene-modified zinc powder in zinc-rich anticorrosive coating | |
| CN114181586A (en) | Water-based epoxy static-conducting oil-resistant anticorrosive paint and preparation method thereof | |
| CN104845499A (en) | Preparation method for waterborne epoxy paste paint | |
| CN110845879A (en) | Novel environment-friendly water-based paint and preparation method thereof | |
| CN105623505A (en) | High-temperature-resistant cold-zinc-spray anticorrosive coating and preparation method thereof | |
| CN114686070A (en) | Water-based epoxy zinc-rich primer and preparation method thereof | |
| CN104725977B (en) | Double-component aqueous epoxy zinc rich primer of heavy antisepsis and preparation method thereof | |
| CN115449248A (en) | Graphene heavy-duty anticorrosive paint for outer wall of earthing storage tank | |
| CN105505212A (en) | Cold zinc-sprayed anticorrosion coating doped with modified graphene | |
| CN108264824B (en) | Solvent-free epoxy coating for high-pressure airless spraying of outer wall of buried steel pipe and preparation method thereof | |
| CN110982312B (en) | Water-based shop primer with excellent initial water resistance and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220909 |
|
| RJ01 | Rejection of invention patent application after publication |