CN103113813A - Hydraulic steel-structure anticorrosion anti-aging high-polymer nano modified coating material - Google Patents
Hydraulic steel-structure anticorrosion anti-aging high-polymer nano modified coating material Download PDFInfo
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- CN103113813A CN103113813A CN2013100444578A CN201310044457A CN103113813A CN 103113813 A CN103113813 A CN 103113813A CN 2013100444578 A CN2013100444578 A CN 2013100444578A CN 201310044457 A CN201310044457 A CN 201310044457A CN 103113813 A CN103113813 A CN 103113813A
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Abstract
The invention discloses a hydraulic steel-structure anticorrosion anti-aging high-polymer nano modified coating material which is prepared by the following steps: 1. carrying out surface pretreatment on a substrate, and carrying out grit blasting; 2. adding polytetrafluoroethylene nano powder accounting for 0.5-1 wt% of a primer into the primer, and uniformly brushing onto the substrate surface; 3. preparing a component A and a component B mixed with the polytetrafluoroethylene nano powder; and 4. thoroughly mixing the component A and the component B mixed with the polytetrafluoroethylene nano powder in a volume ratio of 1:1 in a spraying plant, and spraying the nano modified coating material on the substrate. The hydraulic steel-structure anticorrosion anti-aging high-polymer nano modified coating material disclosed by the invention has excellent properties in the nano material; and since the polytetrafluoroethylene contains polar groups, the prepared coating has favorable aging resistance and favorable corrosion resistance, and the corrosion resistance is enhanced by 3-5 times as compared with the substrate.
Description
Technical field
The invention belongs to the corrosion protective coating field of Hydraulic Steel-structure, be specifically related to the anticorrosion anti-aging high molecular nanometer modified coating material of a kind of Hydraulic Steel-structure.
Background technology
Steel structure material is used all very extensive in each engineering field, but meanwhile, annual metallic substance and the equipment of scrapping because of corrosion just accounts for more than 1/5th of turnout in the world, has caused huge financial loss.Along with the quickening of global industrialization development process, etching problem is on the rise, and wherein the etching problem of Hydraulic Steel-structure is one of the most serious problem.
Along with the development of aseptic technic, applying one deck anti-corrosion protection coating at metal material surface is present most economical applicable a kind of safeguard procedures.Spray Polyurea Elastomer has excellent comprehensive mechanical performance, good anti-seepage effect, and stronger erosion resistance and resistance to deterioration, is one of optimal selection of the anticorrosion anti-aging coating of Hydraulic Steel-structure.
Along with applying of nano surface work technology, add a small amount of nano-powder particle in polyurea elastomer raw materials B component, can effectively improve the surface property of coating.As add the nanometer polytetrafluoroethylcomposite powder in the B component; the Reduced susceptibility of the nano modification coating that makes to light; anti-uv-ray and resistance of aging are significantly improved; the coating that the corrosion potential of nano modification coating does not add nano-powder approximately 100 mV that raise; make the corrosion resisting property of coating strengthen a lot; and the nano modification coating has good isolation action to corrosive medium, and metal substrate is played a very good protection.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can effectively protect or reduce the corrosion of metallic substance and the aging anticorrosion anti-aging high molecular nanometer modified coating material of Hydraulic Steel-structure.
The present invention is by the following technical solutions:
The anticorrosion anti-aging high molecular nanometer modified coating material of a kind of Hydraulic Steel-structure, concrete steps are as follows:
The first step, then the substrate surface pre-treatment does sandblasting;
Second step adds in priming paint that to account for its massfraction be 0.5% ~ 1% polytetrafluorethylenano nano powder and it is evenly brushed substrate surface;
The 3rd step, preparation A component and the B component that is mixed with the polytetrafluorethylenano nano powder;
The 4th step was after the A component of 1:1 and the B component that is mixed with the polytetrafluorethylenano nano powder fully mix in spraying equipment with volume ratio, spraying nano modification coated material on base material, and the integral thickness of the coating that makes is not less than 0.5 mm.
As preferably, described A component is to be the Carbodiimide-Modified ditane-4 of 3:2 by mass ratio, and 4 '-vulcabond and polyether-tribasic alcohol mix and form.
As preferably, described B component is to be 5% ~ 22% Amino Terminated polyether(ATPE) D-400 by accounting for B component mass ratio, 18% ~ 56% 4,4-methylene-bis [N-sec-butyl aniline], 16% ~ 55% Amino Terminated polyether(ATPE) D-2000,0% ~ 11% Amino Terminated polyether(ATPE) T-5000 and to account for nano modification coating quality degree be that 1 ~ 3% polytetrafluorethylenano nano powder mix to form.
The preparation process of described B component is: the massfraction that will account for the B component is 5% ~ 22% Amino Terminated polyether(ATPE) D-400,18% ~ 56% 4,4-methylene-bis [N-sec-butyl aniline] or both mixtures are that 1% ~ 3% polytetrafluorethylenano nano powder high-speed stirring mixes with accounting for nano modification coating quality degree, nano-powder after disperseing again and the massfraction that accounts for the B component are that 16% ~ 55% Amino Terminated polyether(ATPE) D-2000 and 0% ~ 11% Amino Terminated polyether(ATPE) T-5000 together insert in container, make the B component after high speed dispersion 20 ~ 90 min.
As preferably, described polytetrafluorethylenano nano powder, purity＞99.9%, median size is at 200 ~ 300 nm.
Beneficial effect of the present invention is:
The anticorrosion anti-aging high molecular nanometer modified coating material of the Hydraulic Steel-structure that the present invention makes, excellent properties with nano material, contain polar group in tetrafluoroethylene simultaneously, so the coating that makes shows good ageing resistance and good corrosion resistance nature, 3 ~ 5 times have been improved than the solidity to corrosion of base material.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can be instructed from the practice of the present invention.
Embodiment:
Below the present invention is described in further detail with embodiment:
Embodiment 1:
The first step: the pollutents such as the oil stain of removing substrate surface and soluble salt, then it is carried out sandblasting, make the substrate surface degree of cleaning be not less than Sa2.5, surfaceness can reach Rz 50 μ m.
Second step: add in priming paint that to account for its massfraction be 1% polytetrafluorethylenano nano powder, high speed dispersion half an hour, then evenly brush two-layer priming paint on ground.The polytetrafluorethylenano nano powder, purity＞99.9%, median size is at 200 ~ 300 nm.
The 3rd step: with 400g polyether-tribasic alcohol and 600 g Carbodiimide-Modified ditanes-4,4 '-vulcabond is at N
2Provide protection constantly stir and make it fully mix the A component that makes 1000g; 20.2g polytetrafluorethylenano nano powder is sneaked into 343.62 g4 in the mode of high-speed stirring, in the mixture of 4-methylene-bis [N-sec-butyl aniline] and 137.45 g Amino Terminated polyether(ATPE) D-400, ultra-sonic dispersion 30 min.Nano-powder after disperseing and 229.09 g Amino Terminated polyether(ATPE) D-2000 and 53.45 g Amino Terminated polyether(ATPE) T-5000 are inserted in container, and high speed dispersion is standby after 1 hour.
In the 4th step, the A of 1:1, B component join respectively in spraying device special and fully mix by volume, rationally adjust distance and the angle of spray gun and ground, then spray fast the nano modification coating on ground, make at last certain thickness nano modification coating.
The nano modification coating that makes, because having added polytetrafluoroethylpowder powder in priming paint, can effectively improve the adhesive power of priming paint and finish paint, simultaneously again because tetrafluoroethylene has low-down surface energy, the surface tension of coating reduces, compactness improves, and corrosives can not adhere to, and has further improved the Corrosion Protection of coating.And adding tetrafluoroethylene in finish paint, the weathering resistance of coating also increases substantially.The anti-corrosion capability of the coating that makes in a word, has improved 4 times of left and right than matrix.
Embodiment 2:
The first step: the pollutents such as the oil stain of removing substrate surface and soluble salt, then it is carried out sandblasting, make the substrate surface degree of cleaning be not less than Sa2.5, surfaceness can reach Rz 50 μ m.
Second step: add in priming paint that to account for its massfraction be 0.5% polytetrafluorethylenano nano powder, high speed dispersion half an hour, then evenly brush two-layer priming paint on ground.The polytetrafluorethylenano nano powder, purity＞99.9%, median size is at 200 ~ 300 nm.
The 3rd step: with 400g polyether-tribasic alcohol and 600 g Carbodiimide-Modified ditanes-4,4 '-vulcabond is at N
2Provide protection constantly stir and make it fully mix the A component that makes 1000g.The preparation of B component: 36.8g polytetrafluorethylenano nano powder is sneaked into 300 g4 in the mode of high-speed stirring, in 4-methylene-bis [N-sec-butyl aniline], ultra-sonic dispersion 40 min.Nano-powder after disperseing and 383.33 g Amino Terminated polyether(ATPE) D-2000 and 150 g Amino Terminated polyether(ATPE) D-400 are inserted in container, then adopt after high speed dispersor high speed dispersion 80 min standby.
The 4th step, for joining respectively in spraying device special, the A of 1:1, B component fully mix by volume, rationally adjust distance and the angle of spray gun and ground, then spray fast the nano modification coating on ground, make at last the nano modification coating about 2 mm.
In coating, because having added polar group material (tetrafluoroethylene), the sticking power of coating increases a lot, and the anticorrosion resistance of aging of coating has improved more than 3 times than matrix simultaneously.
Embodiment 3:
The first step: the pollutents such as the oil stain of removing substrate surface and soluble salt, then it is carried out sandblasting, make the substrate surface degree of cleaning be not less than Sa2.5, surfaceness can reach Rz 50 μ m.
Second step: add in priming paint that to account for its massfraction be 0.8% polytetrafluorethylenano nano powder, high speed dispersion half an hour, then evenly brush two-layer priming paint on ground.The polytetrafluorethylenano nano powder, purity＞99.9%, median size is at 200 ~ 300 nm.
The 3rd step: with 400g polyether-tribasic alcohol and 600 g Carbodiimide-Modified ditanes-4,4 '-vulcabond is at N
2Provide protection constantly stir and make it fully mix the A component that makes 1000g.The preparation of B component: 25.2g polytetrafluorethylenano nano powder is sneaked into 4 of 348 g in the mode of high-speed stirring, in the mixture of 4-methylene-bis [N-sec-butyl aniline] and 87 g Amino Terminated polyether(ATPE) D-400, ultra-sonic dispersion 30 min.Nano-powder after disperseing and 366.3g Amino Terminated polyether(ATPE) D-2000 and 43.5g Amino Terminated polyether(ATPE) T-5000 are inserted in container, and high speed dispersion is standby after 1 hour.
The 4th step, for joining respectively in spraying device special, the A of 1:1, B component fully mix by volume, rationally adjust distance and the angle of spray gun and ground, then spray fast the nano modification coating on ground, make at last the nano modification coating that is not less than 0.5 mm.
In coating, because having added polar group material (tetrafluoroethylene), the sticking power of coating increases a lot, and the anticorrosion resistance of aging of coating has improved 5 times than matrix simultaneously.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. anticorrosion anti-aging high molecular nanometer modified coating material of Hydraulic Steel-structure, it is characterized in that: concrete steps are as follows:
The first step, then the substrate surface pre-treatment does sandblasting;
Second step adds in priming paint that to account for its massfraction be 0.5% ~ 1% polytetrafluorethylenano nano powder and it is evenly brushed substrate surface;
The 3rd step, preparation A component and the B component that is mixed with the polytetrafluorethylenano nano powder;
The 4th step was after the A component of 1:1 and the B component that is mixed with the polytetrafluorethylenano nano powder fully mix in spraying equipment with volume ratio, spraying nano modification coated material on base material, and the integral thickness of the coating that makes is not less than 0.5 mm.
2. the anticorrosion anti-aging high molecular nanometer modified coating material of a kind of Hydraulic Steel-structure according to claim 1, it is characterized in that: described A component is to be the Carbodiimide-Modified ditane-4 of 3:2 by mass ratio, and 4 '-vulcabond and polyether-tribasic alcohol mix and form.
3. the anticorrosion anti-aging high molecular nanometer modified coating material of a kind of Hydraulic Steel-structure according to claim 2, it is characterized in that: described B component is to be 5% ~ 22% Amino Terminated polyether(ATPE) D-400 by accounting for B component mass ratio, 18% ~ 56% 4,4-methylene-bis [N-sec-butyl aniline], 16% ~ 55% Amino Terminated polyether(ATPE) D-2000,0% ~ 11% Amino Terminated polyether(ATPE) T-5000 and to account for nano modification coating quality degree be that 1 ~ 3% polytetrafluorethylenano nano powder mixes and forms.
4. the anticorrosion anti-aging high molecular nanometer modified coating material of a kind of Hydraulic Steel-structure according to claim 1 is characterized in that: described polytetrafluorethylenano nano powder, and purity＞99.9%, median size is at 200 ~ 300 nm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2619687C1 (en) * | 2015-11-26 | 2017-05-17 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method of producing multipurpose protective coatings |
| RU2648082C1 (en) * | 2017-04-04 | 2018-03-22 | Федеральное государственное автономное образовательное учреждение высшего образования "Дальневосточный федеральный университет" (ДВФУ) | Paint coating |
| CN116376430A (en) * | 2023-03-27 | 2023-07-04 | 清华大学 | Anti-icing coating based on oil-based magnetized microneedles, and preparation method and application thereof |
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| CN101302393A (en) * | 2008-06-19 | 2008-11-12 | 青岛佳联化工新材料有限公司 | Spray polyurea elastomer for mine, preparation and construction method thereof |
| CN101654582A (en) * | 2009-09-27 | 2010-02-24 | 张运林 | Rust resistance and corrosion resistance coating |
| CN101875812A (en) * | 2010-05-24 | 2010-11-03 | 北京科技大学 | Method for preparing nano composite polyurea coating |
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2013
- 2013-02-05 CN CN2013100444578A patent/CN103113813A/en active Pending
Patent Citations (3)
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| CN101302393A (en) * | 2008-06-19 | 2008-11-12 | 青岛佳联化工新材料有限公司 | Spray polyurea elastomer for mine, preparation and construction method thereof |
| CN101654582A (en) * | 2009-09-27 | 2010-02-24 | 张运林 | Rust resistance and corrosion resistance coating |
| CN101875812A (en) * | 2010-05-24 | 2010-11-03 | 北京科技大学 | Method for preparing nano composite polyurea coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2619687C1 (en) * | 2015-11-26 | 2017-05-17 | Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) | Method of producing multipurpose protective coatings |
| RU2648082C1 (en) * | 2017-04-04 | 2018-03-22 | Федеральное государственное автономное образовательное учреждение высшего образования "Дальневосточный федеральный университет" (ДВФУ) | Paint coating |
| CN116376430A (en) * | 2023-03-27 | 2023-07-04 | 清华大学 | Anti-icing coating based on oil-based magnetized microneedles, and preparation method and application thereof |
| CN116376430B (en) * | 2023-03-27 | 2024-01-30 | 清华大学 | Anti-icing coating based on oil-based magnetized microneedles, and preparation method and application thereof |
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Application publication date: 20130522 |