CN103980797A - Polyurethane modified epoxy resin anticorrosive nano-coating - Google Patents
Polyurethane modified epoxy resin anticorrosive nano-coating Download PDFInfo
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- CN103980797A CN103980797A CN201410189934.4A CN201410189934A CN103980797A CN 103980797 A CN103980797 A CN 103980797A CN 201410189934 A CN201410189934 A CN 201410189934A CN 103980797 A CN103980797 A CN 103980797A
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Abstract
The invention provides a polyurethane modified epoxy resin anticorrosive nano-coating which comprises a component A and a component B, wherein the component B is a curing agent, the mass of the component B is 10-35% of that of the component A, and the component A comprises polyurethane modified epoxy resin, nano-titanium powder, a filler and an auxiliary agent: the filler is a nano-scale spherical filler and is one or a mixture of more than one of nano-scale titanium dioxide, nano-scale silicon dioxide and rutile titanium dioxide which are matched according to any proportion. The nano-scale spherical filler is used, so that the coating is more compact in film formation and better in anticorrosion effect. The invention also provides a preparation method of the coating.
Description
Technical field
The present invention relates to materials chemistry field, be specifically related to a kind of anticorrosive nano-coating taking polyurethane modified epoxy resin as main film forming substance; The invention still further relates to the method for this polyurethane modified epoxy resin anticorrosive nano-coating of preparation.
Background technology
In industrial and mining enterprises, large number quipments, all at corrosive medium and containing moving in the fluid medium of solid particulate, due to environment for use harshness, causes equipment corrosion wearing and tearing, and equipment or its parts significantly reduce work-ing life.For solving an above-mentioned difficult problem, currently used method is that protective system, because great majority all contain solvent, has reduced cohesiveness and anti-permeability performance at equipment or its parts surface anticorrosion with painting coating.Disclosed in Chinese patent CN1861717 " anticorrosive ethenyl ester resin glass flake paint for wet flue desulfating equipment ", coating composition is made up of vinyl ester resin, auxiliary agent, pigment, glass flake, thixotropic agent, filler, solvent, promotor and solidifying agent.Glass flake is the palace formula structure of parallel overlapping arrangement in resin, and the infiltration in the resin of corrosive medium after solidifying must be passed through without several tortuous approach, and therefore, in certain thickness anti-corrosion layer, the distance of corrosion penetration extends greatly.But in the scheme of this patent, owing to there being the existence of solvent, film microcosmic pin hole is more, has increased medium osmosis, lower with the bonding strength of matrix, and these have all limited the use range of this coating, has reduced the anticorrosion antiwear performance of coating simultaneously.Disclosed in Chinese patent CN1198383 " composite anti-corrosion material " is the glass-reinforced plastic material being composited by glass-fiber-fabric and resin layer, one or more layers employing graphite resin layer form in resin layer, graphite resin layer is the sanitas layer being mixed by unsaturated polyester, Graphite Powder 99 and solidifying agent.Because glass fibre has water conservancy diversion, cause material permeability resistance to reduce, material is in use prone to bulge, Seepage, and this material has certain toxicity simultaneously, and these have all limited the development of this material.
In recent years, along with the development of modern industry, for adapting to harsher environment for use, a lot of product innovations have been researched and developed both at home and abroad to meet the need of market.The high-performance anticorrosion material of high-quality, not only can play good corrosion-resisting function, and can improve working conditions, save energy and protection metals resources.Anticorrosion to having concurrently, wear-resisting, the impervious strong material in market has active demand.In the time pursuing anticorrosive high-performance, this new problem with international significance that economizes on resources, preserves the ecological environment has proposed the new demand of " pollution-free " to coatings industry simultaneously.
Summary of the invention
For overcoming shortcoming of the prior art, the invention provides the polyurethane modified epoxy resin anticorrosive nano-coating that a kind of cohesive strength is high, compactness good, wear resistance is good.
Another object of the present invention is to provide the preparation method of above-mentioned polyurethane modified epoxy resin anticorrosive nano-coating.
The solution of the present invention is: a kind of polyurethane modified epoxy resin anticorrosive nano-coating, formed by first, second two components, and described second component is solidifying agent, its quality is 10～35% of first constituent mass,
It is characterized in that: described first component is made up of the raw material of following parts by weight:
30～60 parts of polyurethane modified epoxy resins;
5～10 parts of nano titanium powders;
20～60 parts of fillers;
1～3 part of auxiliary agent;
Described filler is nano-level sphere filler, is one or more mixtures of arranging in pairs or groups in any proportion in Nano titanium dioxide, nanometer grade silica and Rutile type Titanium Dioxide.Polyurethane modified epoxy resin is main film forming substance, is often used in and prepares protective system, and its advantage shows as that cohesive strength is high, shrinking percentage is low, good stability, physical strength are high; Filler is selected anti-corrosion abrasion-proof nano level Ball-type packing, makes the arrangement of filler in coating more tight, and coating compactness is good, hardness is high, and permeability resistance is good, has improved anticorrosion antiwear performance and the physical strength of coating, in component, there is no solvent, reduced the pollution to environment.
Described auxiliary agent is one or more mixtures of arranging in pairs or groups in any proportion in 5600 defoamers, BYK-310 flow agent, aerosil thixotropic agent and KH-550 coupling agent.
Described solidifying agent is one or more mixtures of arranging in pairs or groups in any proportion in benzene dimethylamine, diaminodiphenyl-methane and 810 epoxy hardeners.
Meeting conglomeration after each raw material of first component is mixed, for ensureing to mix and facilitate film forming, controls described first component fineness≤15 μ m.
Described nano titanium powder purity >=99.9%, particle diameter is 20～40nm.
The method of preparing above-mentioned polyurethane modified epoxy resin protective system, comprises the following steps:
(1) prepare first component: polyurethane modified epoxy resin is added in the agitation vat with heating function, be preheating to 60～70 DEG C; Take respectively nano titanium powder, filler and auxiliary agent, be added in preheated described polyurethane modified epoxy resin and carry out high speed dispersion; Then compound is ground, make first component; Polyurethane modified epoxy resin is thick liquid, and after all components mixes, because of reasons such as polarity difference are large, component is understood conglomeration, and grinding is beneficial to a component and mixes, and is preferably ground to mixture fineness≤15 μ m.
(2) prepare second component: take the solidifying agent that quality is first constituent mass 10～35%, obtain second component;
(3) use before mixing: by respectively preparation first component and second component is fully mixed and standing slaking, obtain polyurethane modified epoxy resin protective system.
Described high speed dispersion, adopts high speed dispersor band dentation dispersion impeller to realize with rotating speed 900～1000r/min, and jitter time is 2～3h.
Described grinding, adopts basket type sand mill to realize, milling time 6～8h.
Principle of the present invention is: adopt the high-adhesion of polyurethane modified epoxy resin, good chemical proofing, good high thermal resistance, make coating in thering is higher tension, shear strength, there are higher stripping strength and good snappiness, can resist the fatigure failure that solid particulate repeated stock coating surface causes, make coating there is excellent wear resistant corrosion resistant; The ball shaped nano level filler adding, can carry out grating between filler, has strengthened the compactness of coating, has improved the synergistic effect of permeability resistance and the corrosion-proof wear of coating; Adding of auxiliary agent, can improve the over-all properties of coating, improve the workability of coating, overcome the drawback in coating film process.
The invention has the beneficial effects as follows:
1, this coating is that a kind of cohesive strength is high, permeability resistance is good, wear resisting property is high, solvent-free polyurethane modified epoxy resin titanium nano coating coating.
2,, mainly for industrial equipments corrosive wear problem, can be widely used in equipment and component protection and the maintenance of the industry such as petrochemical complex, nonferrous metallurgy.Make up the deficiency such as short, the easy bulge of traditional protection material glass steel life cycle, difficult reparation, reached the object of wear prevention corrosion and protection E & SP by the synergistic effect of this coating different components.
Embodiment
Below by embodiment, the present invention is further elaborated, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Polyurethane modified epoxy resin protective system prepared by following examples, its performance perameter meets: thermotolerance: liquid phase use temperature>=90 DEG C, gas phase use temperature>=150 DEG C; Erosion resistance, every 100g sample is at 20% H
2sO
460 days loss amount≤0.16g of soaking at room temperature in the aqueous solution; Hardness>=9H; Tensile strength>=50MPa; Shear strength>=30MPa; Wear resistance≤13mg/cm
2(1000g500r); Permeability resistance≤0.8 g24h/m
2.
?embodiment 1
(1) a polyurethane modified epoxy resin protective system, is made up of first, second two components, and second component is solidifying agent, and each raw materials quality is as follows:
Polyurethane modified epoxy resin 40kg;
Nano titanium powder 5kg;
Filler 40kg;
Auxiliary agent 2kg;
Solidifying agent 13kg.
First component and second component be 100kg altogether, nano titanium powder purity >=99.9% wherein, particle diameter 20～40nm; Filler is mixed by 10kg Nano titanium dioxide, 10kg nanometer grade silica, 20kg Rutile type Titanium Dioxide; Auxiliary agent is mixed by 1kg 5600 defoamers, 0.3kg BYK-310 flow agent, 0.6kg aerosil thixotropic agent, 0.1kg KH-550 coupling agent; Solidifying agent is to be mixed by 10.4kg benzene dimethylamine, 2.6kg 810 epoxy hardeners.
(2) preparation method.
Preparation first component: polyurethane modified epoxy resin is added in the agitation vat with heating function, be preheating to 60～70 DEG C; By nano titanium powder, filler mixture and auxiliary agent, be added in preheated polyurethane modified epoxy resin, utilize high speed dispersor band dentation dispersion impeller, with rotating speed 900-1000r/min, mixture is carried out to high speed dispersion, jitter time is 2h, then adopt basket type sand mill to grind it until its fineness reaches below 15 μ m, milling time 6h, using ground mixture as first component;
Preparation second component: take benzene dimethylamine, diaminodiphenyl-methane, 810 epoxy hardeners of respective quality, by it as second component;
Mixing before use: by first component with second component is fully mixed and standing slaking, form polyurethane modified epoxy resin anticorrosive nano-coating before using.
(3) use.
When use, metal base will carry out skimming treatment, carries out if desired sandblasting.
Paint spraying mode: aerial spraying, blade coating etc.
Embodiment 2
(1) a polyurethane modified epoxy resin protective system, is made up of first, second two components, and second component is solidifying agent, and each raw materials quality is as follows:
Polyurethane modified epoxy resin 42kg;
Nano titanium powder 6kg;
Filler 36kg;
Auxiliary agent 2.5kg;
Solidifying agent 13.5kg.
First component and second component be 100kg altogether, nano titanium powder purity >=99.9% wherein, particle diameter 20～40nm; Filler is mixed by 8kg Nano titanium dioxide, 8kg nanometer grade silica, 20kg Rutile type Titanium Dioxide; Auxiliary agent is mixed by 1.2kg 5600 defoamers, 0.4kg BYK-310 flow agent, 0.7kg aerosil thixotropic agent, 0.2kg KH-550 coupling agent; Solidifying agent is to be mixed by 9kg benzene dimethylamine, 4.5kg 810 epoxy hardeners.
(2) preparation method.
Preparation first component: polyurethane modified epoxy resin adds in the agitation vat with heating function, is preheating to 60～70 DEG C; By nano titanium powder, filler mixture and auxiliary agent, be added in preheated polyurethane modified epoxy resin, utilize high speed dispersor band dentation dispersion impeller, with rotating speed 900-1000r/min, mixture is carried out to high speed dispersion, jitter time is 2h, then adopt basket type sand mill to grind it until its fineness reaches below 15 μ m, milling time 6.5h, using ground mixture as first component;
Preparation second component: take benzene dimethylamine, diaminodiphenyl-methane, 810 epoxy hardeners of respective quality, by it as second component;
Mixing before use: by first component with second component is fully mixed and standing slaking, form polyurethane modified epoxy resin anticorrosive nano-coating before using.
(3) as embodiment 1(3).
Embodiment 3
(1) a polyurethane modified epoxy resin protective system, is made up of first, second two components, and second component is solidifying agent, and each raw materials quality is as follows:
Polyurethane modified epoxy resin 44kg;
Nano titanium powder 7kg;
Filler 32kg;
Auxiliary agent 3kg;
Solidifying agent 14kg.
First component and second component be 100kg altogether, nano titanium powder purity >=99.9% wherein, particle diameter 20～40nm; Filler is mixed by 7kg Nano titanium dioxide, 7kg nanometer grade silica, 18kg Rutile type Titanium Dioxide; Auxiliary agent is mixed by 1.3kg 5600 defoamers, 0.5kg BYK-310 flow agent, 0.8kg aerosil thixotropic agent, 0.4kg KH-550 coupling agent; Solidifying agent is to be mixed by 11kg benzene dimethylamine, 3kg 810 epoxy hardeners.
(2) as embodiment 1(2).
(3) as embodiment 1(3).
Embodiment 4
(1) a polyurethane modified epoxy resin protective system, is made up of first, second two components, and second component is solidifying agent, and each raw materials quality is as follows:
Polyurethane modified epoxy resin 46.0kg;
Nano titanium powder 8.0kg;
Filler 28.0kg;
Auxiliary agent 3.5kg;
Solidifying agent 14.5kg.
First component and second component be 100kg altogether, nano titanium powder purity >=99.9% wherein, particle diameter 20～40nm; Filler is mixed by 6kg Nano titanium dioxide, 6kg nanometer grade silica, 16kg Rutile type Titanium Dioxide; Auxiliary agent auxiliary agent is mixed by 1.4kg 5600 defoamers, 0.7kg BYK-310 flow agent, 0.8kg aerosil thixotropic agent, 0.6kg KH-550 coupling agent; Solidifying agent is to be mixed by 11kg benzene dimethylamine, 4.5kg 810 epoxy hardeners.
(2) as embodiment 1(2).
(3) as embodiment 1(3).
Claims (8)
1. a polyurethane modified epoxy resin anticorrosive nano-coating, is made up of first, second two components, and described second component is solidifying agent, and its quality is 10～35% of first constituent mass, it is characterized in that: described first component is made up of the raw material of following parts by weight:
30～60 parts of polyurethane modified epoxy resins;
5～10 parts of nano titanium powders;
20～60 parts of fillers;
1～3 part of auxiliary agent;
Described filler is nano-level sphere filler, is one or more mixtures of arranging in pairs or groups in any proportion in Nano titanium dioxide, nanometer grade silica and Rutile type Titanium Dioxide.
2. a kind of polyurethane modified epoxy resin anticorrosive nano-coating as claimed in claim 1, is characterized in that: described auxiliary agent is one or more mixtures of arranging in pairs or groups in any proportion in 5600 defoamers, BYK-310 flow agent, aerosil thixotropic agent and KH-550 coupling agent.
3. a kind of polyurethane modified epoxy resin anticorrosive nano-coating as claimed in claim 1, is characterized in that: described solidifying agent is one or more mixtures of arranging in pairs or groups in any proportion in benzene dimethylamine, diaminodiphenyl-methane and 810 epoxy hardeners.
4. a kind of polyurethane modified epoxy resin anticorrosive nano-coating as described in claim 1-3 any one, is characterized in that: described first component fineness≤15 μ m.
5. a kind of polyurethane modified epoxy resin anticorrosive nano-coating as described in claim 1-3 any one, is characterized in that: described nano titanium powder purity >=99.9%, particle diameter is 20～40nm.
6. the method for preparation a kind of polyurethane modified epoxy resin anticorrosive nano-coating as claimed in claim 1, is characterized in that, comprises the following steps:
(1) prepare first component: polyurethane modified epoxy resin is added in the agitation vat with heating function, be preheating to 60～70 DEG C; Take respectively nano titanium powder, filler and auxiliary agent, be added in preheated described polyurethane modified epoxy resin compound is carried out to high speed dispersion; Then compound is ground, make first component;
(2) prepare second component: take the solidifying agent that quality is first constituent mass 10～35%, obtain second component;
(3) use before mixing: by respectively preparation first component and second component is fully mixed and standing slaking, obtain polyurethane modified epoxy resin protective system.
7. method as claimed in claim 6, is characterized in that: described high speed dispersion, and adopt high speed dispersor band dentation dispersion impeller to realize with rotating speed 900-1000r/min, jitter time is 2～3h.
8. method as claimed in claim 6, is characterized in that: described grinding, adopts basket type sand mill to realize, milling time 6～8h.
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| CN201410189934.4A CN103980797A (en) | 2014-05-07 | 2014-05-07 | Polyurethane modified epoxy resin anticorrosive nano-coating |
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|---|---|---|---|
| CN201410189934.4A CN103980797A (en) | 2014-05-07 | 2014-05-07 | Polyurethane modified epoxy resin anticorrosive nano-coating |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104845493A (en) * | 2015-05-15 | 2015-08-19 | 西北矿冶研究院 | Copper electrolysis mother plate edge covering coating material and preparation method thereof |
| CN105111923A (en) * | 2015-05-26 | 2015-12-02 | 史海生 | LED-UV cold light-cured rapid-repairing paint and preparation method thereof |
| CN105153680A (en) * | 2015-09-09 | 2015-12-16 | 苏州晓谕精密机械股份有限公司 | Wear-resistant material for rack and method for preparing wear-resistant material |
| CN105650406A (en) * | 2016-03-08 | 2016-06-08 | 中冶南方工程技术有限公司 | Corrosion prevention method for outer wall of gas pipeline |
| CN105694624A (en) * | 2016-01-28 | 2016-06-22 | 深圳市夸克纳米材料有限公司 | Water-based environment-friendly nano alloy floor paint and preparation method thereof |
| CN106380904A (en) * | 2016-08-27 | 2017-02-08 | 安徽天瞳智能科技有限公司 | Composite material with high strength and high adhesiveness |
| CN106893441A (en) * | 2015-12-17 | 2017-06-27 | 中国科学院金属研究所 | A kind of epoxy resin-nano-titanium surface chemistry bonding anticorrosive paint and preparation method |
| CN106995639A (en) * | 2017-04-18 | 2017-08-01 | 安徽省康宇水电机械成套设备有限公司 | A kind of inexpensive anti-corrosion material under water |
| CN108841289A (en) * | 2018-05-25 | 2018-11-20 | 中国人民解放军陆军装甲兵学院 | A kind of weather-proof functional coating of long-effective corrosion and preparation method thereof |
| CN111040586A (en) * | 2018-10-15 | 2020-04-21 | 宜兴阳源环境工程有限公司 | Wear-resistant anticorrosive repair coating for circulating pump impeller |
| CN111040583A (en) * | 2018-10-15 | 2020-04-21 | 宜兴阳源环境工程有限公司 | Temperature-resistant acid-resistant anticorrosive paint for chimney lining |
| WO2022041594A1 (en) * | 2020-08-26 | 2022-03-03 | 广东电网有限责任公司电力科学研究院 | Wear-resistant and anticorrosion coating, preparation method therefor, and application thereof |
| CN114836126A (en) * | 2022-05-31 | 2022-08-02 | 泰兴联创绝缘材料有限公司 | Hydrophilic antifogging coating and preparation method thereof, and protective film and preparation method thereof |
| CN115537108A (en) * | 2022-10-12 | 2022-12-30 | 安徽衡光新材料科技有限公司 | Water-based nanoscale anticorrosive paint for watch shells and preparation method thereof |
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| CN104845493A (en) * | 2015-05-15 | 2015-08-19 | 西北矿冶研究院 | Copper electrolysis mother plate edge covering coating material and preparation method thereof |
| CN105111923A (en) * | 2015-05-26 | 2015-12-02 | 史海生 | LED-UV cold light-cured rapid-repairing paint and preparation method thereof |
| CN105111923B (en) * | 2015-05-26 | 2018-05-11 | 史海生 | LED-UV cold light cures quick reparation coating and its preparation method |
| CN105153680A (en) * | 2015-09-09 | 2015-12-16 | 苏州晓谕精密机械股份有限公司 | Wear-resistant material for rack and method for preparing wear-resistant material |
| CN106893441A (en) * | 2015-12-17 | 2017-06-27 | 中国科学院金属研究所 | A kind of epoxy resin-nano-titanium surface chemistry bonding anticorrosive paint and preparation method |
| CN106893441B (en) * | 2015-12-17 | 2020-01-03 | 中国科学院金属研究所 | Epoxy resin-nano titanium interface chemical bonding anticorrosive paint and preparation method thereof |
| CN105694624A (en) * | 2016-01-28 | 2016-06-22 | 深圳市夸克纳米材料有限公司 | Water-based environment-friendly nano alloy floor paint and preparation method thereof |
| CN105650406A (en) * | 2016-03-08 | 2016-06-08 | 中冶南方工程技术有限公司 | Corrosion prevention method for outer wall of gas pipeline |
| CN106380904A (en) * | 2016-08-27 | 2017-02-08 | 安徽天瞳智能科技有限公司 | Composite material with high strength and high adhesiveness |
| CN106995639A (en) * | 2017-04-18 | 2017-08-01 | 安徽省康宇水电机械成套设备有限公司 | A kind of inexpensive anti-corrosion material under water |
| CN108841289A (en) * | 2018-05-25 | 2018-11-20 | 中国人民解放军陆军装甲兵学院 | A kind of weather-proof functional coating of long-effective corrosion and preparation method thereof |
| CN111040586A (en) * | 2018-10-15 | 2020-04-21 | 宜兴阳源环境工程有限公司 | Wear-resistant anticorrosive repair coating for circulating pump impeller |
| CN111040583A (en) * | 2018-10-15 | 2020-04-21 | 宜兴阳源环境工程有限公司 | Temperature-resistant acid-resistant anticorrosive paint for chimney lining |
| WO2022041594A1 (en) * | 2020-08-26 | 2022-03-03 | 广东电网有限责任公司电力科学研究院 | Wear-resistant and anticorrosion coating, preparation method therefor, and application thereof |
| CN114836126A (en) * | 2022-05-31 | 2022-08-02 | 泰兴联创绝缘材料有限公司 | Hydrophilic antifogging coating and preparation method thereof, and protective film and preparation method thereof |
| CN115537108A (en) * | 2022-10-12 | 2022-12-30 | 安徽衡光新材料科技有限公司 | Water-based nanoscale anticorrosive paint for watch shells and preparation method thereof |
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Application publication date: 20140813 |