CN1279130C - Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating - Google Patents
Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating Download PDFInfo
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- CN1279130C CN1279130C CN 200310100371 CN200310100371A CN1279130C CN 1279130 C CN1279130 C CN 1279130C CN 200310100371 CN200310100371 CN 200310100371 CN 200310100371 A CN200310100371 A CN 200310100371A CN 1279130 C CN1279130 C CN 1279130C
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Abstract
The present invention relates to heavy ceramic wear-resistant heat-resistance corrosion-proof paint which is solidified at normal temperature. The paint is prepared from 100 parts by weight of epoxy resin (1), 50 to 120 parts by weight of additive (2), 8 to 25 parts by weight of antirust pigment (3), 100 to 200 parts by weight of ceramic powder (4), 40 to 70 parts by weight of mixing solvent (5) and a solidifying agent, and one share by weight of paint contain 35 to 50 shares by weight of solidifying agent. After dual components of the paint are mixed, the paint can be directly sprayed or coated on metal surfaces at normal temperature without the need of primer. The paint has excellent performance of wear resistance, corrosion resistance, shock resistance and high pliability, and the paint can effectively avoid acid erosion, alkali erosion, salt erosion and seawater erosion. Surfaces of coatings are compact and smooth and has little resistance to transmission media, so the paint can be weidely used for oil delivery pipelines, petroleum storage tanks, equipment in chemical industry, ships, blades of grinding wheels, pumps, dust removers, seaborne steel elements, etc.
Description
(1) technical field
The present invention relates to a kind of is wear-resisting, the heat-resisting heavy duty system of the ambient cure of main body by Resins, epoxy and multiple ceramics powder, rust-stabilising pigment and solidifying agent.
(2) background technology
At present, wearable ceramic coat, mainly be divided into two big classes, a kind of is powder coating, require workpiece to be heated to 220-270 ℃ as Chinese patent " high-strength anticorrosion antiwear powder paint and coating method thereof " (CN 00126503.2), manufacturing process, production and coating equipment complexity, power consumption is big, and cost is higher; The low-temperature curing difficulty, more unsuitable ambient cure has certain limitation to material shape and thickness, promotes difficulty.The wearable ceramic coat of another kind of ambient cure, as Chinese invention patent " a kind of heavy anticorrosive wearable ceramic coat " (CN 1325931), its ceramics powder is by TiO
2, Al
2O
3, Si
3N
4Form, wherein Si
3N
4Industrialization degree is low, costs an arm and a leg, and has increased the cost of coating, makes it apply and is very restricted.
At present wearable ceramic coat cost height, the shortcoming that price is expensive has been invented a kind of selection industrialization degree height, and construction technology is simple, the coating densification, and rate of permeation is low, the wearable ceramic coat that wear resisting property is good.
(3) summary of the invention
The invention provides a kind of flexible ceramic antiwear heat resisting heavy-duty coating, form by Resins, epoxy and modified epoxy and multiple ceramics powder, novel antirust pigment, additive, mixed solvent, modified amine curing agent, normal temperature solidified, the coating structure densification, has excellent wear, snappiness, shock-resistance and sticking power, constructing operation is easy, low price.
The present invention is achieved through the following technical solutions:
A kind of flexible ceramic antiwear heat resisting heavy-duty coating, it is characterized in that multiple Resins, epoxy matches with multiple ceramics powder, novel antirust pigment, additive, mixed solvent, modified amine curing agent, wear-resisting, heat-resisting, the anticorrosive coating of the normal temperature solidified flexible ceramic of making.Described ceramics powder is AL
2O
3With the mullite powder, ratio is: aluminum oxide: mullite is selected from=and 100: 50 or 60: 120 or 70: 50.Each weight of forming of coating is formed (in 100 parts of weight of epoxy resin composition) and is:
(1): epoxy resin composition: 100, described epoxy resin composition is coventional type Resins, epoxy and modified epoxy
(2) additive: 50～120;
(3) rust-stabilising pigment: 8～25;
(4) ceramics powder: 100～200, described ceramics powder is AL
2O
3With the mullite powder
(5) mixed solvent: 40～70;
Above-mentioned (1)-(5) component coating: modified amine curing agent=(35～50): 1 (weight ratio).
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that epoxy resin composition is coventional type Resins, epoxy and modified epoxy.
Above-mentioned coating is characterized in that ordinary epoxy resin is bisphenol-A liquid epoxy resin or bisphenol A-type solid epoxy.
Bisphenol-A liquid epoxy resin such as E-55, E-51, E-44; Perhaps bisphenol A-type solid epoxy such as E-42, E-35, E-31, E-20, E-12, E-06, E-03 etc.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that modified epoxy is phenol aldehyde modified Resins, epoxy or modifying epoxy resin by organosilicon.
Above-mentioned coating is characterized in that modified epoxy is phenol aldehyde modified Resins, epoxy such as F-51, F-46, F-44 or modifying epoxy resin by organosilicon ES-06, ES-44, ES-03 etc.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that additive is the physique filler: ground barium sulfate, process white, light calcium carbonate, talcum powder, china clay, mica powder, asbestos powder, silica powder, magnesiumcarbonate, titanium dioxide, zinc oxide, zinc sulphide; Tensio-active agent: Sodium dodecylbenzene sulfonate, long-chain polyamino amidophosphoric acid salt, bunching acid sodium-salt, octadecane acid amide ethyl, dimethyl, beta-hydroxyethyl amine trinitrate, kemanide S propyl group, dimethyl beta-hydroxyethyl ammonium triphosphoric acid dihydric salt; Flow agent: polyester organosilicon; Coupling agent: vinyl silanes, methacryloxy silane, aminosilane, hydrocarbyl si lanes.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that rust-stabilising pigment is aluminium powder, glass flake, graphite, iron mica, zinc phosphate, aluminium triphosphate, tripolyphosphate titanium, chromium zinc yellow, zinc tetroxy chromate, strontium yellow or organic chromium hydrochlorate.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that described ceramics powder is AL
2O
3With the mullite powder, promptly different AL
2O
3The ceramics powder of content, mullite powder.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that mixed solvent is selected from benzene class, alcohols, ester class and their derivative and three's mixture or the mixture of the two wherein.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that proportioning is selected from dimethylbenzene between the mixed solvent: propyl carbinol=2-5: 1; Toluene: Virahol=1.5-4: 1; Toluene: methyl alcohol: ethyl acetate=1.5-3: 2-3: 1-2; Toluene: propyl carbinol=2-5: 1; Dimethylbenzene: isopropylcarbinol=3-6: 1; Ethyl acetate: methyl alcohol: propyl carbinol=2-4: 1-3: 1; Toluene: isopropylcarbinol=2-5: 1.
A kind of flexible ceramic antiwear heat resisting heavy-duty coating is characterized in that modified amine curing agent is selected from the amido affixture of phenolic aldehyde one hexanediamine condenses, epoxy propane butyl ether-Diethylenetriaminee (DETA) affixture, N-aminoethyl piperazine, diketone acrylamide.
Filmogen adopts Resins, epoxy to match with modified epoxy, utilizes its good mechanical property and strong adhesion, anti-corrosion and characteristics that permeability resistance is good, is aided with modified epoxy, has improved the resistance toheat of the integral body of filming; Utilize ceramic packing hardness height, physical property such as wear-resistant, adopt heavy, light ceramics powder to match, in filming, form certain crossover network structure, rationally select the pigment volume concentration (PVC) of additive for use, in the coated article surface with other components of coating, form fine and close protective layer, wherein the light ceramics powder can also play certain lubrication.This coating first composition weight consists of: Resins, epoxy, 100; Additive, 50～120; Rust-stabilising pigment, 8～25; Ceramics powder, 100～200; Mixed solvent, 40～70.Above-mentioned coating is formed: modified amine curing agent=(35～50): 1 (weight ratio).The ceramics powder that adopts is Al
2O
3With the molten mullite (3Al of height
2O
32SiO
2).Scanning Electron Microscope photos reveal, ceramics powder and each component ratio are proper in coating system, have formed to arrange network structure closely.Electrochemistry experiment further shows, become the electrodeposited coating film change in resistance slow, impervious outlet capacity is strong, actual application result has also proved this point.
Its concrete production technique is: after the feedstock analysis chemical examination is qualified, take by weighing solvent, resin by prescription, put into Scattered Kettle, dissolve until Resins, epoxy.Additive, rust-stabilising pigment, ceramics powder are added in the mixing solutions, in homogenizer, stir, disperse.The gained mixed serum is put into sand mill, regulates sand mill to optimum revolution, grinds 48 hours, carries out the examination and test of products, can filter and package after qualified.
In the construction, at first will carry out surface preparation: with shot-peening or derusting by sandblast, quality should reach Sa21/2 level (GB8923-89); If rust cleaning by hand, quality should reach the St3 level.Before the japanning, should remove impurity such as surperficial greasy dirt, dust.Handling clean steel plate should in time paint, in case get rusty again.
Secondly, coating first, component B is mixed in proportion.Coating was placed of a specified duration, sedimentation may occur, will fully stir before using, until forming unit for uniform suspension.
The present invention can brush at normal temperatures, and the mechanical property of filming after testing is as follows: snappiness, 1 (mm); Sticking power, 1 grade; Shock resistance, 50 (kg/cm
2); Wear resisting property (1000g/500 commentaries on classics), 20mg.Show that through immersion test this coating is at the mixture of normal temperature acid, alkali, salts solution, gasoline, kerosene, diesel oil, water, 80 ℃ of medium-term and long-term no changes that soak of oilfield sewage, in the medium-term and long-term immersion of 3.5%NaCl, permeability retention is stable especially.So coating has excellent abrasion resistance, erosion resistance, impact resistance and snappiness, do not need priming paint, can directly apply, the erosion that can effectively completely cut off acid, alkali, salt, seawater, coatingsurface densification, smooth, little to the transmission medium resistance, can be applicable to pipe laying, petroleum storage tank and chemical industry equipment, boats and ships, emery wheel blade, pump, fly-ash separator, marine steel construction piece etc.
Ambient cure is adopted in this research, greatly reduces cost, utilizes the electrochemical impedance spectral method to carry out control experiment with domestic and international relevant coating variety, shows that the corrosion resistance of filming is good, and seepage rate is low, is better than similar products at home and abroad.VOC content is low, compliance with environmental protection requirements; The amount of solid content height, one-pass film-forming thickness is big, has reduced construction road number, has improved work efficiency.Raw material is based on our country, mature production technology, environmental protection, and product performance are reliable and stable, possessed the condition of suitability for industrialized production.
(4) embodiment
The several embodiment of various details further specify the present invention, but content of the present invention is not limited to this fully.
Embodiment 1
Each parts by weight of forming of coating are:
Resins, epoxy: 100 (wherein: ordinary epoxy resin: 70; Modified epoxy: 30);
Mixed solvent is a toluene: 30; Propyl carbinol: 20;
Aluminum oxide: 100;
Mullite: 50;
Process white: 50;
Iron mica: 20;
After grinding, add 10 parts of quadrols before use, use in half an hour.This coating is right-and prolonged application carried out application in the fly-ash separator under 180 ℃, little acid environment.By nearly 2 years actual use, this coating surface is complete, nothing comes off, fine heat-resisting performance, and anticorrosion ability is remarkable.
Embodiment 2
Each parts by weight of forming of coating are:
Resins, epoxy: 100 (wherein: ordinary epoxy resin: 40; Modified epoxy: 60);
Mixed solvent is a toluene: 20; Methyl alcohol: 20; Ethyl acetate: 25
Aluminum oxide: 60;
Mullite: 120;
Talcum powder: 80;
Zinc phosphate: 15;
After grinding, add 8 parts of phenolic aldehyde-hexanediamine condenses before use, 2 parts of polymeric amide use in half an hour.Use this coating the emery wheel blade in the power-plant cooling water system is carried out application, by nearly 2 years actual use, this coating surface is complete, nothing comes off.Wear resisting property is good, and anticorrosion ability is remarkable.
Embodiment 3
Each parts by weight of forming of coating are:
Resins, epoxy: 100 (wherein: ordinary epoxy resin: 50; Modified epoxy: 50);
Mixed solvent is a dimethylbenzene: 35; Propyl carbinol: 10;
Flow agent: 5
Aluminum oxide: 70;
Mullite: 50;
Light calcium carbonate: 115
Zinc chromate: 8
After grinding, add 8 parts of polymeric amide before use, use in half an hour.Use this coating and carry out application to removing the stream tower, by nearly 1 year actual use, this coating surface is complete, nothing comes off.Wear resisting property is good, and anticorrosion ability is remarkable.
Claims (7)
1, a kind of flexible ceramic antiwear heat resisting heavy-duty coating, it is characterized in that multiple Resins, epoxy matches with multiple ceramics powder, novel antirust pigment, additive, mixed solvent, modified amine curing agent, wear-resisting, heat-resisting, the anticorrosive coating of the normal temperature solidified flexible ceramic of making; Described ceramics powder is AL
2O
3With the mullite powder, ratio is: aluminum oxide: mullite is selected from=and 100: 50 or 60: 120 or 70: 50; The weight of each composition part of coating is formed (in 100 parts of weight of epoxy resin composition) and is:
(1) epoxy resin composition: 100, described epoxy resin composition is coventional type Resins, epoxy and modified epoxy;
(2) additive: 50～120;
(3) rust-stabilising pigment: 8～25;
(4) ceramics powder: 100～200, described ceramics powder is AL
2O
3With the mullite powder;
(5) mixed solvent: 40～70;
Above-mentioned (1)-(5) coating composition: modified amine curing agent=(35～50): 1 (weight ratio).
2,, it is characterized in that ordinary epoxy resin is bisphenol-A liquid epoxy resin or bisphenol A-type solid epoxy according to the described coating of claim 1.
3,, it is characterized in that modified epoxy is phenol aldehyde modified Resins, epoxy or modifying epoxy resin by organosilicon according to the described coating of claim 1.
4, coating according to claim 1 is characterized in that rust-stabilising pigment is for being selected from aluminium powder, glass flake, graphite, iron mica, zinc phosphate, aluminium triphosphate, tripolyphosphate titanium, chromium zinc yellow, zinc tetroxy chromate, strontium yellow or organic chromium hydrochlorate.
5, coating according to claim 1 is characterized in that mixed solvent is selected from benzene and derivative, alcohol, ester and their derivative or three's mixture or the mixture of the two wherein.
6, coating according to claim 1 is characterized in that proportioning is selected from dimethylbenzene between the mixed solvent: propyl carbinol=2-5: 1; Toluene: Virahol=1.5-4: 1; Toluene: methyl alcohol: ethyl acetate=1.5-3: 2-3: 1-2; Toluene: propyl carbinol=2-5: 1; Dimethylbenzene: isopropylcarbinol=3-6: 1; Ethyl acetate: methyl alcohol: propyl carbinol=2-4: 1-3: 1; Toluene: isopropylcarbinol=2-5: in 1 any a kind.
7, coating according to claim 1 is characterized in that modified amine curing agent is selected from the amido affixture of phenolic aldehyde one hexanediamine condenses, epoxy propane butyl ether-Diethylenetriaminee (DETA) affixture, N-aminoethyl piperazine, diketone acrylamide.
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|---|---|---|---|
| CN 200310100371 CN1279130C (en) | 2003-10-14 | 2003-10-14 | Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating |
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|---|---|---|---|
| CN 200310100371 CN1279130C (en) | 2003-10-14 | 2003-10-14 | Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating |
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| CN1528844A CN1528844A (en) | 2004-09-15 |
| CN1279130C true CN1279130C (en) | 2006-10-11 |
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ID=34304023
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| CN 200310100371 Expired - Fee Related CN1279130C (en) | 2003-10-14 | 2003-10-14 | Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating |
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-
2003
- 2003-10-14 CN CN 200310100371 patent/CN1279130C/en not_active Expired - Fee Related
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