CN103555017B - Organically-modified zinc-rich coating of a kind of water-based and preparation method thereof - Google Patents
Organically-modified zinc-rich coating of a kind of water-based and preparation method thereof Download PDFInfo
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- CN103555017B CN103555017B CN201310539213.7A CN201310539213A CN103555017B CN 103555017 B CN103555017 B CN 103555017B CN 201310539213 A CN201310539213 A CN 201310539213A CN 103555017 B CN103555017 B CN 103555017B
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Abstract
The invention provides the organically-modified zinc-rich coating of a kind of water-based, this priming paint is mixed with and forms by making aqueous binders resin, active zinc powders more than 500 orders, the ultra-fine mixed and modified filler of ultra-fine mixing by oneself. Paint environmental protection of the present invention, strong adhesion, resistant to chemical media corrosivity and good antirust, anti-corrosive performance, high-hardness wear-resistant, conduct electricity, have good cathodic protection effect, do not welded and cutting affects. Be widely used in the applications such as large-scale steel structure, pipeline, oil tank, ship lock, bridge and boats and ships, coastal facility, oil equipment.
Description
Technical field:
The present invention relates to paint field, be specifically related to organically-modified zinc-rich coating of a kind of water-based and preparation method thereof.
Background technology:
Along with the corresponding appearance of the environmental regulation of domestic and international various harshnesses, exploitation aqueous heavy anti-corrosion paint gesture is in necessity. IThe loss that state's iron structure corrosion causes every year accounts for 5.3% of gross national product up to 500,000,000,000 yuan, therefore protects the gold such as iron and steelBelong to, making its performance effect, stoping corrosion, increase the service life is a vital task of anticorrosive work. Aqueous inorganic zinc rich paintBeing based on inorganic silicate technology, is mainly that inorganic silicate reacts generation network structure shape coating with zinc powder, belongs to green ringGuarantor's type coating. There is unique inorganic structure and anticorrosion mechanism, in cathodic protection, shielding, the aspect performance Zhuos such as resistance erosion and passivationMore. Along with the construction of socioeconomic development and infrastructure, be widely used in airport, railway station, bridge, car body, factoryThe every aspect of room etc. steel construction. Aqueous inorganic zinc rich paint develops into now, is paid attention to by increasing terminal use. ExistingThere are on the market various aqueous inorganic zinc rich paint resins, but substantially can be divided into two kinds:
1, being based upon in pure inorganic silicate technical foundation--this resinoid outward appearance mostly colourless (or light color) is saturating
Bright shape, anticorrosion weather resisteant can be good, but relatively high to ground processing requirements, execution conditions required harsh.
2, in the technical emulsion resin through modification of inorganic silicate--the breast for building of organic for great majority
Liquid carries out modification, and the resin after improvement can effectively strengthen some physical properties of paint film, but adhesive force has
Institute declines, and salt fog resistance decreases.
3, the technology of the present invention, when long, practice and experiment, select modified natural rubber to change inorganic silicate
Property, it is simple that the resin after modification is allotted the priming paint application property coming, strong adhesion, and antiseptic property is good, solves
The deficiency of other type kind.
Summary of the invention:
The invention provides the preparation method of the organically-modified zinc-rich coating of a kind of water-based. The nontoxic nothing of product of the present inventionTaste, zero VOC discharge, have fabulous adhesive force, extremely strong resistant to chemical media corrosivity and good antirust, anti-corrosive performance, high rigidityWear-resistant, conduct electricity, have good cathodic protection effect, do not welded and cutting affects. Film physical property exceedes HG/The regulation of T3668-2009, salt fog resistance reaches HG/T3668-2009 index request. Be widely used in large-scale steel structure, pipeline, oilThe applications such as tank, ship lock, bridge and boats and ships, coastal facility, oil equipment.
The technical solution used in the present invention is as follows for achieving the above object:
The organically-modified zinc-rich coating of a kind of water-based, is characterized in that, its component by following weight portion is made:
Aqueous binders resin 30-40, zinc powder 60-70, ultra-fine mixed and modified filler 5-10,
The preparation method of described aqueous binders resin is:
(1) take by weight following component:
Inorganic silicic acid lithium 13-16, inorganic silicic acid potassium 12-15, functional aid 0.5-1.0, hydration activity diluent 45-50, emulsification natural rubber 18-22;
(2) the inorganic silicic acid lithium taking, inorganic silicic acid potassium are hydrolyzed under acid condition, obtain hydrolysate, gained hydrolysisThing and emulsification natural rubber be polymerization reaction take place under 60 DEG C of conditions, obtains aqueous binders resin;
Described ultra-fine mixed and modified filler is to be prepared and obtained by following method:
A. take off the raw material of row weight portion: kaolin 100-150, calcium carbonate 120-130, zeolite 10-12, nano-sized carbon 1-2,Tungstic acid 1-2, lanthana 2-3, peppermint essential oil 2-3, sodium perborate 1-2, aluminium oxide 2-3, precipitation method barium sulfate 30-34, teaPolyphenol 3-4, triethyl citrate 1-2, titanate coupling agent TMC-TTS4-6, jade powder 1-2;
B, kaolin, calcium carbonate, zeolite are calcined to 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add 3-In 4% sodium hydroxide solution, grind 1-2 hour, then, add the hydrochloric acid solution of 12-15%, adjusting pH value is 4-5, ageing 10-15 hours, it was neutral that repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH, filters, and dries and obtains filler powder;
C, above-mentioned gained powder is mixed with other residual components, grinds to form ultra-fine mixed powder, and with 8000-10000 turn/The speed of dividing, high speed dispersion is even.
The organically-modified zinc-rich coating of described water-based, is characterized in that: described zinc powder is 500 order active zinc powders.
The organically-modified zinc-rich coating of described water-based, is characterized in that: described functional aid is selected from levelling agent, disappearsOne or more in infusion, drier, thickener.
The production method of the described organically-modified zinc-rich coating of water-based, is characterized in that, comprises the following steps:
(1) be packaged as coating first component by filling aqueous binders resin at clean Plastic Drum good seal by weight;
(2) under dry environment, weigh up by weight zinc powder and ultra-fine mixed and modified filler, mix with kneader, with mouldingPocket packaging is put into large mouthful of metal bucket and is coating component B;
(3) while use, first component is mixed by weight the ratio of 3: 7 with second component.
Technical scheme deterministic process of the present invention:
1) determining of main film forming substance aqueous binders resin:
The aqueous binders resin that the present invention adopts is silicate cement glass (modulus the is 4.8 left and right) warp by high modeNatural rubber modification forms. Soluble glass of high modulus compound binding agent after modification, more OH base is contained in the inside, has moreMolecule participates in polymerization, Si-O key and zinc powder wherein, and the polymerizations such as the ferro element of steel structure surface generate silicate polymer, are inhalingReceive after airborne water and CO2, continue to be reacted into insoluble paint film and netted silicic acid zinc chrome compound, be bonded in steel construction base materialForm together huge network, natural rubber is wherein because of its resistance to good ageing properties, high-strength caking property and closure,After polymerization, formed an organic whole with steel construction together with other chromium complex, play the effect of protection iron and steel.
(2) become determining of paint formula:
The organically-modified zinc-rich coating of water-based of the present invention, by first component liquid and second group powder according to a certain percentage (3: 7) composition. Component B is more than 500 orders active zinc powder and a small amount of ultra-fine mixed fillers composition, and first component is of the present inventionThe lithium metasilicate potassium resin glue of natural rubber modification. The main performance of paint film is by between each component and between ground steel constructionShowing of complicated mutual work, so the quality of liquid (binding agent) directly affects the performance of coating.
Advantage of the present invention:
Because aqueous binders resin is high molar ratio lithium metasilicate, the potassium silicate mixture by natural rubber modification, thereby thisInvention has the following advantages:
1. permanent weatherability: the main film forming matter of product of the present invention is inorganic matter, can resist the purple of sunshine for a long timeOutside line and can not being aging, under long-term being exposed to the sun, is also difficult for occurring efflorescence, cracking, and the phenomenon such as come off. Zinc powder in paint film,Can play good cathodic protection effect, even if paint film is damaged unexpectedly, also can not spread to periphery, its salt spray resistance canReach 1000 hours.
2. good adhesion strength: product of the present invention belongs to the zinc-rich paint of aqueous silicic acid salt, and paint film is in dry runIn the middle of touch with base material iron knot, form the netted chromium complex of chemistry of silicic acid zinc-iron class, be chemical bonds very firmly, thereby to baseMaterial steel construction has very strong adhesion strength (adhesive force >=3MPa).
3. weldering knot performance: can be with paint cutting, weldering knot paint film is non-foaming, does not come off, and does not burn, and does not affect weldquality.
4. security: product of the present invention, taking water as medium, without flash-point, does not fire not quick-fried, containing harmful organic volatile compounds, not rightEnvironment environmental protection, to workmen's safety.
5 heat resistances: product of the present invention for a long time can heatproof 400 DEG C, and moment can heatproof reach 800 DEG C. And there is good sprayNo matter Tu Xing, be aerial spraying or airless spraying, is difficult for stifled spray gun when construction. Except above feature, also have wearability, anti-quietElectrically (105-108), solvent resistance etc.
Detailed description of the invention
The preparation of embodiment 1 film forming matter aqueous binders resin
Main raw material(s)
1.1 material compositions
Inorganic silicic acid potassium, inorganic silicic acid lithium, functional aid, hydration activity diluent, emulsification natural rubber.
The composition of raw materials of 1.2 aqueous binders resins
1.3 synthesis technique
1.3.1 the emulsification of natural rubber: throw 8% cyclohexane solution of natural rubber in reactor, add oleic acid under stirringAnd Span-80 (Span80), 25 DEG C add certain density KOH solution, when system transferred to by Water-In-Oil oil-in-water anti-phase after, thenUse high shearing mixing emulsor emulsification, at 40 DEG C, cyclohexane is extracted in decompression distillation out, makes emulsification nature rubber latex.
1.3.2 aqueous binders resin is synthetic: by the inorganic silicic acid lithium taking, inorganic silicic acid potassium water under acid conditionSeparate, obtain hydrolysate, gained hydrolysate and emulsification natural rubber be polymerization reaction take place under 60 DEG C of conditions, obtains aqueous bindersResin.
1.4 aqueous binders resin technology index testing results are as following table:
| Appearance color | Milky working fluid | Assay |
| Solids content (100 DEG C/3h) | 31-33％ | 31.5 |
| Density (25 DEG C) | 1.15-1.25g/ml | 1.20 |
| Viscosity (25 DEG C, be coated with-4 glasss) | ≥11 | 12 |
| Dioxide-containing silica % | 23-25 | 24.5 |
| Modulus (M) | 4.5-5.0 | Meet |
| PH value | ≥10 | Meet |
The preparation of embodiment 2, the organically-modified zinc-rich coating finished product of water-based
2.1 main raw material(s) material compositions
Aqueous binders resin prepared by embodiment 1, active zinc powders more than 500 orders, ultra-fine mixed and modified filler;
The 2.2 organically-modified zinc-rich coating formula each component weight of water-based (kg)
Aqueous binders resin (prepared by embodiment 1) 30
Active zinc powder (500 order) 65
Ultra-fine mixed and modified filler 5,
Preparation technology is:
(1) be packaged as coating first component by filling aqueous binders resin at clean Plastic Drum good seal by weight;
(2) weigh up by weight zinc powder (can not make moist), ultra-fine mixed fillers, mix and use polybag bag with kneaderPut in large mouthful of metal bucket and be coating component B. While all using zinc powder, directly pack and put into large mouthful of metal bucket with polybag;
(3) while use, first component is mixed by weight the ratio of 3: 7 with second component.
Wherein, ultra-fine mixed and modified filler is to be prepared and obtained by following method: a. takes off the raw material of row weight portion: Gao LingSoil 140, calcium carbonate 125, zeolite 11, nano-sized carbon 2, tungstic acid 1, lanthana 2, peppermint essential oil 2, sodium perborate 2, aluminium oxide 2,Precipitation method barium sulfate 32, Tea Polyphenols 4, triethyl citrate 2, titanate coupling agent TMC-TTS5, jade powder 2;
B, kaolin, calcium carbonate, zeolite are calcined to 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add 3-In 4% sodium hydroxide solution, grind 1-2 hour, then, add the hydrochloric acid solution of 12-15%, adjusting pH value is 4-5, ageing 10-15 hours, it was neutral that repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH, filters, and dries and obtains filler powder;
C, above-mentioned gained powder is mixed with other residual components, and even with the high speed dispersion of 8000-10000 rev/min,Obtain.
2.4 lacquering assays
| Project | Index | Measured result |
| Paint film color and outward appearance | Zinc gray look, smooth | Meet |
| Resin viscosity (being coated with-4) S >= | 11 | 12 |
| Fineness, μ m≤ | 80 | 80 |
| Drying time, h≤ | Surface drying 0.5 does solid work 5 | 0.5 |
| Hardness (pencil) >= | 3H | 5H |
| Adhesive force/Mpa >= | 3 | 4 |
| The bent Shi Yan of Wan ㎜≤ | 3 | 3 |
| Resistance to salt water, 1000h | Non-foaming, non-corrosive | Meet |
| Heat resistance, 500 DEG C/4h | Color slightly deepens | Meet |
| Resistance to water 1000h | Without abnormal | Meet |
| Petrol-resistance 1000h | Without abnormal | Meet |
| Salt-fog resistant test 1000h | Non-foaming, do not come off | Meet |
Claims (4)
1. the organically-modified zinc-rich coating of water-based, is characterized in that, its component by following weight portion is made: water-basedResin glue 30-40, zinc powder 60-70, ultra-fine mixed and modified filler 5-10,
The preparation method of described aqueous binders resin is:
(1) take by weight following component: inorganic silicic acid lithium 13-16, inorganic silicic acid potassium 12-15, functional aid0.5-1.0, hydration activity diluent 45-50, emulsification natural rubber 18-22;
(2) the inorganic silicic acid lithium taking, inorganic silicic acid potassium are hydrolyzed under acid condition, obtain hydrolysate, gained hydrolysate withEmulsification natural rubber is polymerization reaction take place under 60 DEG C of conditions, obtains aqueous binders resin;
Described ultra-fine mixed and modified filler is to be prepared and obtained by following method:
A. take off the raw material of row weight portion: kaolin 100-150, calcium carbonate 120-130, zeolite 10-12, nano-sized carbon 1-2, three oxygenChange tungsten 1-2, lanthana 2-3, peppermint essential oil 2-3, sodium perborate 1-2, aluminium oxide 2-3, precipitation method barium sulfate 30-34, Tea Polyphenols3-4, triethyl citrate 1-2, titanate coupling agent TMC-TTS4-6, jade powder 1-2;
B, kaolin, calcium carbonate, zeolite are calcined to 4-5h at 450-480 DEG C, be cooled to room temperature, after taking-up, add 3-4%'sIn sodium hydroxide solution, grind 1-2 hour, then, add the hydrochloric acid solution of 12-15%, regulating pH value is 4-5, and ageing 10-15 is littleTime, it is neutral that repeated hydrogenation sodium hydroxide solution regulates lapping liquid pH, filters, and dries and obtains filler powder;
C, above-mentioned gained powder is mixed with other residual components, grind to form ultra-fine mixed powder, and with 8000-10000 rev/minSpeed, high speed dispersion is even.
2. the organically-modified zinc-rich coating of water-based according to claim 1, is characterized in that: described zinc powder is 500 ordersActive zinc powder.
3. the organically-modified zinc-rich coating of water-based according to claim 1, is characterized in that: described functional aid choosingOne or more in Self-leveling agent, defoamer, drier, thickener.
4. the production method of the organically-modified zinc-rich coating of water-based according to claim 1, is characterized in that, comprise withLower step:
(1) be packaged as coating first component by filling aqueous binders resin at clean Plastic Drum good seal by weight;
(2) under dry environment, weigh up by weight zinc powder and ultra-fine mixed and modified filler, mix with kneader, use plasticsBag packaging is put into large mouthful of metal bucket and is coating component B;
(3) while use, first component is mixed by weight the ratio of 3: 7 with second component.
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| CN201310539213.7A CN103555017B (en) | 2013-11-04 | 2013-11-04 | Organically-modified zinc-rich coating of a kind of water-based and preparation method thereof |
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| CN103555017B true CN103555017B (en) | 2016-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104292892B (en) * | 2014-10-11 | 2017-11-21 | 广西大学 | A kind of aqueous inorganic zinc-rich dry powder paint and preparation method |
| CN105440901A (en) * | 2015-12-02 | 2016-03-30 | 铜陵市肆得科技有限责任公司 | Powder coating having excellent antirust effect and used for pump valve |
| CN111575714A (en) * | 2020-06-09 | 2020-08-25 | 湖南浩润科技有限公司 | Neutralization corrosion inhibitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526780A (en) * | 2003-09-22 | 2004-09-08 | 上海暄洋纳米材料有限公司 | Water soluble two-component inorganic zinc paint and its making process |
| CN101735674A (en) * | 2010-01-07 | 2010-06-16 | 中国人民解放军海军后勤技术装备研究所 | Aqueous inorganic zinc-enriched coating and preparation method thereof |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
| CN102485806A (en) * | 2010-12-06 | 2012-06-06 | 上海暄洋化工材料科技有限公司 | Water-based inorganic zinc shop primer, its preparation method and its application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106271A (en) * | 1979-02-09 | 1980-08-14 | Nippon Oil & Fats Co Ltd | Aqueous inorganic zinc-rich primer |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526780A (en) * | 2003-09-22 | 2004-09-08 | 上海暄洋纳米材料有限公司 | Water soluble two-component inorganic zinc paint and its making process |
| CN101735674A (en) * | 2010-01-07 | 2010-06-16 | 中国人民解放军海军后勤技术装备研究所 | Aqueous inorganic zinc-enriched coating and preparation method thereof |
| CN102485806A (en) * | 2010-12-06 | 2012-06-06 | 上海暄洋化工材料科技有限公司 | Water-based inorganic zinc shop primer, its preparation method and its application |
| CN102146225A (en) * | 2011-03-09 | 2011-08-10 | 华南理工大学 | Waterborne room-temperature self-curing inorganic zinc rich coating |
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Address after: 246000 Jixian Industrial Park, Daguan Economic Development Zone, Anhui, Anqing Applicant after: Anhui Ling Huqi limited-liability company Address before: 246000 Jixian Industrial Park, Daguan Economic Development Zone, Anhui, Anqing Applicant before: Anqing Linghu Paint Co.,Ltd. |
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