CN118291016A - Super weather-resistant heavy-duty anticorrosive paint for ocean engineering and preparation method thereof - Google Patents
Super weather-resistant heavy-duty anticorrosive paint for ocean engineering and preparation method thereof Download PDFInfo
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- CN118291016A CN118291016A CN202410547266.1A CN202410547266A CN118291016A CN 118291016 A CN118291016 A CN 118291016A CN 202410547266 A CN202410547266 A CN 202410547266A CN 118291016 A CN118291016 A CN 118291016A
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- 239000003973 paint Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000012407 engineering method Methods 0.000 title description 2
- 239000011248 coating agent Substances 0.000 claims abstract description 38
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 12
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 229910000077 silane Inorganic materials 0.000 claims abstract description 10
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 239000004952 Polyamide Substances 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 229920002647 polyamide Polymers 0.000 claims abstract description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 23
- 239000002987 primer (paints) Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000010954 inorganic particle Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 229910052724 xenon Inorganic materials 0.000 abstract description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910002808 Si–O–Si Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
Abstract
The invention relates to a super weather-proof heavy-duty anticorrosive paint for ocean engineering and a preparation method thereof. The epoxy heavy-duty primer comprises 200-400 parts by weight of epoxy resin, 50-100 parts by weight of polyamide epoxy curing agent, 200-400 parts by weight of anti-corrosion functional pigment and filler and 10-30 parts by weight of auxiliary agent. The super weather-resistant organic silicon surface layer coating comprises 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst. The super weather-resistant heavy-duty anticorrosive paint for ocean engineering can be coated on the surface of Q235 steel for more than 4000 hours in a neutral salt spray test, and can resist ageing irradiation of a xenon lamp for more than 2000 hours.
Description
Technical Field
The invention relates to a preparation method of a coating for ocean engineering, in particular to a preparation method of a super weather-resistant heavy-duty anticorrosive coating for ocean engineering.
Background
The ocean engineering equipment is mostly used in ocean environments, and the ocean environments are coupled with severe environmental factors such as high temperature, high humidity, high salt fog, wind, sun, and the like, so that equipment corrosion is accelerated, equipment failure is extremely easy to cause, faults are caused, the service life is seriously shortened, and great economic loss and even serious safety accidents are caused. Based on the weather resistance and corrosion sensitivity problems of marine equipment, heavy-duty primer is coated on the surface of the equipment, and high weather resistance finish paint is matched. Because the epoxy resin has good shielding property and adhesion property to a substrate, most of marine heavy-duty anti-corrosion primer adopts zinc-rich epoxy primer, but in recent years, the search for heavy-duty anti-corrosion paint for replacing the zinc-rich epoxy primer becomes trend in the heavy-duty anti-corrosion field of marine engineering. Because of extremely high weather-proof requirements, most of the finishing paint of the marine engineering equipment coating adopts polyurethane finishing paint, but in the field with higher weather-proof requirements, the polyurethane finishing paint is difficult to be qualified, fluorocarbon finishing paint can be used for replacing, but the preparation cost of the fluorocarbon finishing paint is high, and in case of fire, fluorocarbon is heated to decompose to generate more than ten harmful gases such as highly toxic phosgene, fluoroolefin and the like, so that the large-scale use of the fluorocarbon finishing paint is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a super weather-resistant heavy-duty anticorrosive paint for ocean engineering.
In order to achieve the above object, the technical scheme of the present invention is realized by the following technical scheme:
The super weather-proof heavy-duty anticorrosive paint for ocean engineering comprises an epoxy heavy-duty anticorrosive primer layer paint and a super weather-proof organosilicon surface layer paint.
Preferably, the epoxy heavy-duty primer comprises the following raw materials in parts by weight: 200-400 parts of epoxy resin, 50-100 parts of polyamide epoxy curing agent, 200-400 parts of anticorrosive functional pigment filler and 10-30 parts of auxiliary agent.
Preferably, the super weather-resistant organic silicon surface layer coating comprises the following raw materials in parts by weight: 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst.
Preferably, the epoxy resin is at least one of E44 and E51.
Preferably, the pigment and filler with antiseptic function is a combination of inorganic particle type mineral powder raw material and flake type powder raw material.
Preferably, the inorganic particulate mineral powder raw material is at least one of alumina, barium sulfate, calcium carbonate, and iron oxide.
Preferably, the flake raw material is at least one of flake graphite, glass flake, flake mica and talc.
Preferably, the silane monomer is at least one of methyltrialkoxysilane, methyl orthosilicate and ethyl orthosilicate.
Preferably, the catalyst is one of formic acid and acetic acid.
The invention also relates to a preparation method of the super weather-resistant heavy-duty anticorrosive paint for ocean engineering, which comprises the following steps:
(1) Preparing an epoxy heavy-duty primer: weighing the following raw materials in parts by weight: 200-400 parts of epoxy resin, 50-100 parts of polyamide epoxy curing agent, 200-400 parts of anticorrosive functional pigment filler and 10-30 parts of auxiliary agent, and mechanically stirring in a mixing barrel for 2 hours at 300r/min to ensure that all components of the coating are uniformly mixed, and standing and curing for 24 hours to obtain the epoxy heavy-duty anticorrosive primer.
Preparing the super weather-resistant organic silicon surface layer coating: weighing the following raw materials in parts by weight in a curing barrel: 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst, and then placing the mixture on a roller mixer for rolling and mixing for 8-10 hours to obtain the super weather-resistant organosilicon surface layer coating.
Compared with the prior art, the invention has the beneficial effects that:
1. inorganic particle type mineral powder raw materials and flake powder raw materials in the epoxy heavy-duty primer can produce a synergistic effect, so that the penetration resistance of the coating to corrosive substances is enhanced, and the purpose of long-acting heavy-duty is achieved. The super weather-resistant heavy-duty anticorrosive paint for ocean engineering can be coated on the surface of Q235 steel for more than 4000 hours in a neutral salt spray test.
2. The coating after curing of the super weather-resistant organic silicon surface layer coating consists of Si-O-Si chemical bonds, and the chemical bond energy is high, so that the coating has extremely high weather resistance, and the xenon lamp aging irradiation resistance of the coating can reach more than 2000 hours.
3. The super weather-resistant heavy-duty anticorrosive paint for ocean engineering can achieve heavy corrosion resistance and super weather resistance.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples. The example embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The invention relates to a super weather-resistant heavy-duty anticorrosive paint for ocean engineering and a preparation method thereof, comprising the following steps:
(1) Preparing an epoxy heavy-duty primer:
Weighing the following raw materials in parts by weight: 200-400 parts of epoxy resin, 50-100 parts of polyamide epoxy curing agent, 200-400 parts of anticorrosive functional pigment filler and 10-30 parts of auxiliary agent, and mechanically stirring in a mixing barrel for 2 hours at 300r/min to ensure that all components of the coating are uniformly mixed, and standing and curing for 24 hours to obtain the epoxy heavy-duty anticorrosive primer. (detailed data for each component is described in Table 1 below)
(2) Preparing the super weather-resistant organic silicon surface layer coating:
Weighing the following raw materials in parts by weight in a curing barrel: 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst, and then placing the mixture on a roller mixer for rolling and mixing for 8-10 hours to obtain the super weather-resistant organosilicon surface layer coating.
The test data in each example are shown in the following table
Description of the inventive principles:
1. The inorganic particulate mineral powder raw material and the flake raw material may produce a synergistic effect: the flaky powder coating has a labyrinth effect, so that the path of the corrosive medium, which breaks through the coating to reach the surface of the substrate, can be prolonged; the filling of the particulate mineral powder coating into the middle of the flake raw material further improves the coating shielding effect.
In the prior art, the method for improving the corrosion resistance of the paint is as follows: ① The anticorrosion pigment and filler such as aluminum tripolyphosphate and ferrophosphorus micropowder are added singly to achieve the anticorrosion effect, but the improvement range is not obvious; ② Two-dimensional sheets are added to improve barrier properties for corrosion protection, but corrosive media tend to penetrate the coating from the interstices between the sheets. Therefore, the point-surface combined structure formed by the structural design of the powder and the sheet layer can prevent the penetration of corrosive medium and improve the corrosion resistance of the coating.
2. The silane monomer is dehydrated and condensed to form Si-O-Si chemical bond, and the chemical bond has high bond energy and far super-illumination energy, so that the silane monomer can be kept stable under outdoor illumination.
3. The coating system formed by combining principle 1 and principle 2 has the properties of corrosion resistance of the bottom layer and weather resistance of the surface layer.
In the prior publications, the super weather-resistant organic silicon coating is used as a surface layer and is combined with inorganic particles and flake powder to be used as a bottom layer in combination, so that the super weather-resistant heavy-duty anticorrosive coating for ocean engineering is described.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A super weather-resistant heavy-duty anticorrosive paint for ocean engineering and a preparation method thereof are characterized in that: the super weather-proof heavy-duty anticorrosive paint for the ocean engineering comprises an epoxy heavy-duty anticorrosive primer coating and a super weather-proof organosilicon surface coating.
2. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 1, wherein: the epoxy heavy-duty primer coating comprises the following raw materials in parts by weight: 200-400 parts of epoxy resin, 50-100 parts of polyamide epoxy curing agent, 200-400 parts of anticorrosive functional pigment filler and 10-30 parts of auxiliary agent.
3. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 1, wherein: the super weather-resistant organic silicon surface layer coating comprises the following raw materials in parts by weight: 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst.
4. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 2, wherein: the epoxy resin is at least one of E44 and E51.
5. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 2, wherein: the pigment and filler with the anti-corrosion function is a combination of inorganic particle type mineral powder raw materials and flake type powder raw materials.
6. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 5, wherein: the inorganic particle type mineral powder raw material is at least one of aluminum oxide, barium sulfate, calcium carbonate and ferric oxide.
7. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 5, wherein: the flaky powder raw material is at least one of flake graphite, glass flakes, flaky mica and talcum powder.
8. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 3, wherein: the silane monomer is at least one of methyltrialkoxysilane, methyl orthosilicate and ethyl orthosilicate.
9. The super weatherable heavy duty anticorrosive coating for ocean engineering according to claim 3, wherein: the catalyst is one of formic acid and acetic acid.
10. A preparation method of super weather-resistant heavy-duty anticorrosive paint for ocean engineering is characterized by comprising the following steps: the preparation method comprises the following steps:
Preparing an epoxy heavy-duty primer: weighing the following raw materials in parts by weight: 200-400 parts of epoxy resin, 50-100 parts of polyamide epoxy curing agent, 200-400 parts of anticorrosive functional pigment filler and 10-30 parts of auxiliary agent, and mechanically stirring in a mixing barrel for 2 hours at 300r/min to ensure that all components of the coating are uniformly mixed, and standing and curing for 24 hours to obtain the epoxy heavy-duty anticorrosive primer.
Preparing the super weather-resistant organic silicon surface layer coating: weighing the following raw materials in parts by weight in a curing barrel: 150-200 parts by weight of silica sol, 100-200 parts by weight of silane monomer and 10-20 parts by weight of catalyst, and then placing the mixture on a roller mixer for rolling and mixing for 8-10 hours to obtain the super weather-resistant organosilicon surface layer coating.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118291016A true CN118291016A (en) | 2024-07-05 |
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