CN103360909A - Waterborne epoxy antirust paint and its preparation method - Google Patents
Waterborne epoxy antirust paint and its preparation method Download PDFInfo
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- CN103360909A CN103360909A CN2013103091455A CN201310309145A CN103360909A CN 103360909 A CN103360909 A CN 103360909A CN 2013103091455 A CN2013103091455 A CN 2013103091455A CN 201310309145 A CN201310309145 A CN 201310309145A CN 103360909 A CN103360909 A CN 103360909A
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Abstract
The invention relates to waterborne epoxy antirust paint and its preparation method. The antirust paint is bi-component paint, including a component A which is composed of the following ingredients: by weight, 20-30% of waterborne epoxy resin, 30-50% of ferrotitanium powder, 5-10% of nanoscale zinc phosphate, 1-5% of sodium nitrite, 0.5-1% of a dispersant, 0.1-0.5% of an antifoaming agent, 0.1-0.3% of a levelling agent, 1-2% of an anti-settling agent and water added to 100%. The waterborne epoxy antirust paint provided by the invention contains no lead and is waterborne epoxy lead-free red lead antirust paint. The heavy metal content of the ferrotitanium powder is only 200 parts per million. The waterborne epoxy antirust paint provided by the invention completely replaces solvent type epoxy red lead antirust paint, achieves an antirust effect, and has advantages of environmental protection, low toxicity, high efficiency and zero discharge of VOC.
Description
Technical field
The present invention relates to a kind of water-base epoxy rust-inhibiting paint, particularly, the present invention relates to the unleaded red lead paint of a kind of water-base epoxy.
Background technology
The functions such as that epoxy anti-rust paint has is anticorrosion, waterproof, chemicals-resistant, fast light, heatproof are coated in article surface and form layer protecting film, can stop or postpone generation and the development of these breakoff phenomenons, prolong the work-ing life of material.Epoxy anti-rust paint can spray, brushing, roller coat; sticking tide over large epoxy available rust-inhibiting paint special diluting agent and be adjusted to application and do not trickle and be advisable; has fabulous outside durabitity; physical strength is good; good decorative property; epoxy anti-rust paint can be used for the application on the surfaces such as outdoor steel construction, heavy mechanical equipment, rises and decorates provide protection.Epoxy anti-rust paint is two component lacquers, applies after mixing, and normal temperature self-drying, but also low temperature flash baking, paint film adhesion is good, and hardness is high, and outside durabitity is good, protects light, and tint retention is good, is difficult for yellowing, and color is plentiful and substantial, and anti-dirty property is good.The effects such as epoxy anti-rust paint electrical isolation, conduction, shielding electromagnetic wave, anti-electrostatic generation; The effect of the biological chemistry aspects such as mildew-resistant, sterilization, desinsection, anti-marine organisms adhesion.
Traditional steel construction all needs to use rust-inhibiting paint as priming paint when using coating to carry out rotproofing.Wherein the most frequently used is red lead paint, micaceous iron oxide rustproof paint, zinc gray rust-inhibiting paint, iron oxide red rust-proofing primer etc., wherein best with the red lead paint performance, but its cost is but high than other priming paint.In addition, because the rust-stabilising pigment red lead powder main component in the red lead rust proof paint is tri-lead tetroxide, in each process such as manufacturing, use, removing, all human and environment is caused significant damage.
Be that military apparatus or civilian steel construction aspect all are better than red lead powder in the urgent need to this novel antirust pigment of a kind of novel antirust pigment at rust-preventing characteristic and weathering resistance, and on price, will be lower than red lead powder.Construction technology will be got well when using, and requires easy to usely, easily disperses, and can spray or brush.
CN1405244 discloses a kind of ferrotitanium composite powder rust-inhibiting paint, to remove red lead in the existing red lead paint component, it is tri-lead tetroxide, replace with composite iron-titanium powder, advantage is: in rust-inhibiting paint with 40%(paint component weight ratio only) composite iron-titanium powder can replace 50% red lead powder, its the key technical indexes all reaches and surpasses red lead paint, and cost can descend about 1800 yuan/T.Owing to having removed tri-lead tetroxide, so this product is nontoxic, non-environmental-pollution belongs to the environment-friendly type high-tech product, and better Social benefit and economic benefit is arranged.
But the prescription of CN1405244 and a unexposed effective rust-inhibiting paint forms or the preparation method, and those skilled in the art can't be instructed effectively.
Therefore this area is needed a kind of environmental protection of exploitation, low toxicity, efficient, the epoxy anti-rust paint of VOC zero release badly.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of water-base epoxy rust-inhibiting paint and preparation method thereof.
First aspect present invention provides a kind of water-base epoxy rust-inhibiting paint.
A kind of water-base epoxy rust-inhibiting paint, described rust-inhibiting paint are double compositions paint, and wherein the first component comprises following component by weight percentage:
The ferrotitanium powder belongs to efficiently, non-poisonous antirust pigment, and heavy metal content is applied in composite environmental-friendly rules in the aqueous antirust paint below 2/10000ths.Composite iron-titanium powder generates insoluble solid phosphoric acid chromium-iron lignosulfonate by the iron atom of the phosphate radical in the phosphoric acid salt and steel surface, and exclusion of water, oxygen, chlorine etc. have played chemical rust inhibition to the corrosion of iron and steel.The existence of defoamer has also solved because the unfairness of the paint film that the existence of bubble causes, and then the decline of the antirust function that causes.
The first component of water-base epoxy rust-inhibiting paint of the present invention comprises following component by weight percentage:
Preferably, aqueous epoxy resins of the present invention is the water-based bisphenol A type epoxy resin.
The acquisition of water-based bisphenol A type epoxy resin is the state of the art, and typical but non-limiting have " preparation of self-emulsification aqueous epoxy resin emulsion and performance " (Zhang Hanqing etc., contemporary chemical industry, 10 phases in 2011).
The particle diameter of ferrotitanium powder of the present invention is 1～300nm, such as 3～100nm, 6～50nm, 9～120nm, 12～200nm, 19～150nm, 27～99nm, 36～52nm, 49～180nm, 62～250nm, 89～286nm etc., preferred 1～100nm.
Ferrotitanium powder of the present invention is selected from WD-D type composite iron-titanium powder or WD-A type composite iron-titanium powder.
WD-A type composite iron-titanium powder is black powder, according to the standard of QC/T484, and the adhesion 1 grade of WD-A, hardness higher (＞0.5), snappiness good (1mm), shock-resistance reaches 50kgcm.WD-D type composite iron-titanium powder is buff powder, relative density 3.0.
The ferrotitanium powder all can be by commercially available, and typical but non-limiting ferrotitanium powder can be WD-D-325, WD-D-803, WD-D-800, WD-H-802, WD-A-325, WD-A-500 etc.
Preferably, the particle diameter of described nano level zinc phosphate is 1～100nm, such as 3～50nm, 6～80nm, 9～52nm, 12～85nm, 19～65nm, 27～90nm, 36～70nm etc., preferred 1～80nm.
Preferably, the particle diameter of described Sodium Nitrite is 1～300nm, such as 3～100nm, 6～50nm, 9～120nm, 12～200nm, 19～150nm, 27～99nm, 36～52nm, 49～180nm, 62～250nm, 89～286nm etc., preferred 1～100nm.
Preferably, described dispersion agent is the combination of any a kind or at least 2 kinds in the non-ionic type wetting dispersing agent, preferably from alkylphenol polyoxyethylene class tensio-active agent, the combination of any a kind or at least 2 kinds in the fatty alcohol-polyoxyethylene ether, further preferred AEO-3(aliphatic alcohol polyethenoxy (3) ether), AEO-7(aliphatic alcohol polyethenoxy (7) ether), AEO-9(aliphatic alcohol polyethenoxy (9) ether), OP-10(octyl phenol polyoxyethylene (10) ether), the combination of any a kind or at least 2 kinds NP-10(nonyl phenol polyoxyethylene (10) ether); The modest Disponer W-18 water-based wetting dispersing agent of moral particularly preferably.
Described combination is the combination of AEO-3 and AEO-7 for example, the combination of AEO-3 and AEO-9, the combination of AEO-7 and AEO-9, the combination of NP-10 and AEO-7, the combination of OP-10 and AEO-9 etc.
Preferably, described defoamer is selected from the combination of any a kind or at least 2 kinds in the silicone antifoam agent, the preferably combination of any a kind or at least 2 kinds in polyethers modified polyorganosiloxane defoamer or polyester-modified polysiloxanes defoamer, further preferred from moral modest Defom6500 or Defom6800.
Preferably, described flow agent is the combination of any a kind or at least 2 kinds in the water-based silicone flow agent, preferably from moral modest Levaslip455 or Levaslip435.
Preferably, described anti-settling agent is the combination of any a kind or at least 2 kinds in the nonionic polyurethane polymkeric substance, preferred modest WT-102 or the WT-103 of moral.
Preferably, the second component of described rust-inhibiting paint is aqueous epoxy curing agent, the preferably combination of any a kind or at least 2 kinds in water-based add-on type epoxy hardener and water-based catalytic type epoxy hardener, further preferred any a kind in Epilink701, the Anquamine670 of the Casmide360 of Britain Tuo Mashiwen company, air products company, Anquamine456.
Preferably, in the described rust-inhibiting paint, the blending ratio of first component and second component is (2.5～3.5): 1, and such as 2.6:1,2.8:1,2.9:1,3:1,3.2:1,3.4:1 etc., preferred 3:1.
As optimal technical scheme, rust-inhibiting paint of the present invention is double compositions paint, and wherein the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent, and the blending ratio of described first component and second component is (2.5～3.5): 1.
The present invention also provides a kind of preparation method such as the described rust-inhibiting paint of first aspect, and described method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
The physical and chemical index of water-base epoxy rust-inhibiting paint of the present invention should satisfy following condition:
| Project | The water-base epoxy rust-inhibiting paint | Detection method |
| The color outward appearance | Meet the aberration scope, paint film is smooth | GB6753.1 |
| Viscosity, PaS | 1.5～2.0 | GB2794 |
| Fineness, micron | 50 | GB1724-79 |
| Surface drying, h | 0.5～2.2 | GB1728-79 |
| Do solid work h | 17～20 | GB1728-79 |
| Sticking power, level | 1 | GB1720-79 |
| Snappiness, mm | 1 | GB1731-79 |
| Shock strength, kgcm | 50 | GB1732-79 |
| Salt spray resistance, 96h | Unchanged | GB/T1771-91 |
Compared with prior art, the present invention has following beneficial effect:
Water-base epoxy rust-inhibiting paint provided by the invention is not leaded, is the unleaded red lead paint of water-base epoxy, and the ferrotitanium grain weight metal content that wherein adopts only is 2/10000ths, not only replace the solvent type epoxy red lead paint fully, reach its rust-proof effect, and environmental protection, low toxicity, efficient, the VOC zero release.
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1
A kind of water-base epoxy rust-inhibiting paint comprises first component and second component, and wherein, the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent;
The blending ratio of described first component and second component is 3.5:1;
Described water-base epoxy rust-inhibiting paint preparation method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
Embodiment 2
A kind of water-base epoxy rust-inhibiting paint comprises first component and second component, and wherein, the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent;
The blending ratio of described first component and second component is 3:1;
Described water-base epoxy rust-inhibiting paint preparation method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
Embodiment 3
A kind of water-base epoxy rust-inhibiting paint comprises first component and second component, and wherein, the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent;
The blending ratio of described first component and second component is 2.5:1;
Described water-base epoxy rust-inhibiting paint preparation method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
Embodiment 4
A kind of water-base epoxy rust-inhibiting paint comprises first component and second component, and wherein, the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent Casmide360;
The blending ratio of described first component and second component is 2.2:1;
Described water-base epoxy rust-inhibiting paint preparation method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
Embodiment 5
A kind of water-base epoxy rust-inhibiting paint comprises first component and second component, and wherein, the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent Anquamine670;
The blending ratio of described first component and second component is 3.2:1;
Described water-base epoxy rust-inhibiting paint preparation method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
Comparative Examples
Be with the difference of embodiment 4: WD-D-325 type composite iron-titanium powder equivalent replaces with red lead.
Performance test
The rust-inhibiting paint that Comparative Examples 1～5 and Comparative Examples are prepared carries out performance test, and test result is as shown in table 1:
Should be noted that and understand, in the situation that do not break away from the desired the spirit and scope of the present invention of accompanying claim, can make to the present invention of foregoing detailed description various modifications and improvement.Therefore, the scope of claimed technical scheme is not subjected to the restriction of given any specific exemplary teachings.
Applicant's statement, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not mean that namely the present invention must rely on above-mentioned method detailed and could implement.The person of ordinary skill in the field should understand, any improvement in the present invention to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (10)
1. a water-base epoxy rust-inhibiting paint is characterized in that, described rust-inhibiting paint is double compositions paint, and wherein the first component comprises following component by weight percentage:
2. rust-inhibiting paint as claimed in claim 1 is characterized in that, described rust-inhibiting paint first component comprises following component by weight percentage:
3. rust-inhibiting paint as claimed in claim 1 or 2 is characterized in that, described aqueous epoxy resins is the water-based bisphenol A type epoxy resin.
4. such as the described rust-inhibiting paint of one of claim 1～3, it is characterized in that, the particle diameter of described ferrotitanium powder is 1～300nm, preferred 1～100nm;
Preferably, described ferrotitanium powder is selected from WD-D type composite iron-titanium powder or WD-A type composite iron-titanium powder.
5. such as the described rust-inhibiting paint of one of claim 1～4, it is characterized in that, the particle diameter of described nano level zinc phosphate is 1～100nm, preferred 1～80nm;
Preferably, the particle diameter of described Sodium Nitrite is 1～300nm, preferred 1～100nm.
6. such as the described rust-inhibiting paint of one of claim 1～5, it is characterized in that, described dispersion agent is the combination of any a kind or at least 2 kinds in the non-ionic type wetting dispersing agent, the preferably combination of any a kind or at least 2 kinds in alkylphenol polyoxyethylene class tensio-active agent, fatty alcohol-polyoxyethylene ether, the combination of any a kind or at least 2 kinds among further preferred AEO-3, AEO-7, AEO-9, OP-10, the NP-10; The modest Disponer W-18 water-based wetting dispersing agent of moral particularly preferably;
Preferably, described defoamer is selected from the combination of any a kind or at least 2 kinds in the silicone antifoam agent, the preferably combination of any a kind or at least 2 kinds in polyethers modified polyorganosiloxane defoamer or polyester-modified polysiloxanes defoamer, further preferred from moral modest Defom6500 or Defom6800.
7. such as the described rust-inhibiting paint of one of claim 1～6, it is characterized in that, described flow agent is the combination of any a kind or at least 2 kinds in the water-based silicone flow agent, preferably from moral modest Levaslip455 or Levaslip435;
Preferably, described anti-settling agent is the combination of any a kind or at least 2 kinds in the nonionic polyurethane polymkeric substance, preferred modest WT-102 or the WT-103 of moral.
8. such as the described rust-inhibiting paint of one of claim 1～7, it is characterized in that, the second component of described rust-inhibiting paint is aqueous epoxy curing agent, the preferably combination of any a kind or at least 2 kinds in water-based add-on type epoxy hardener and water-based catalytic type epoxy hardener, further preferred any a kind in Epilink701, the Anquamine670 of the Casmide360 of Britain Tuo Mashiwen company, air products company, Anquamine456;
Preferably, in the described rust-inhibiting paint, the blending ratio of first component and second component is (2.5～3.5): 1, and preferred 3:1.
9. such as the described rust-inhibiting paint of one of claim 1～8, it is characterized in that, described rust-inhibiting paint is double compositions paint, and wherein the first component comprises following component by weight percentage:
Wherein, the second component is aqueous epoxy curing agent, and the blending ratio of described first component and second component is (2.5～3.5): 1.
10. the preparation method such as the described rust-inhibiting paint of one of claim 1～9 is characterized in that, described method is:
The dispersion agent of aqueous epoxy resins, ferrotitanium powder, nano level zinc phosphate, water and 0.5 times of formula ratio of formula ratio is dropped into Scattered Kettle together, stir, adding remaining dispersion agent stirs, below the sand milling fineness to 50 micron, the defoamer, flow agent, the anti-settling agent that add formula ratio stir, and water is adjusted to 3～5PaS with viscosity can obtain the water-base epoxy rust-inhibiting paint.
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| CN2013103091455A CN103360909A (en) | 2013-07-22 | 2013-07-22 | Waterborne epoxy antirust paint and its preparation method |
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| CN2013103091455A CN103360909A (en) | 2013-07-22 | 2013-07-22 | Waterborne epoxy antirust paint and its preparation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104263045A (en) * | 2014-09-19 | 2015-01-07 | 江苏海晟涂料有限公司 | Water-based epoxy anticorrosive paint and preparation method thereof |
| CN107083148A (en) * | 2017-04-12 | 2017-08-22 | 河北晨阳工贸集团有限公司 | Suitable for the power transmission shaft water-thinned antirust primer and preparation method of electrostatic spraying |
| CN107298920A (en) * | 2016-04-15 | 2017-10-27 | 江苏欣法电气有限公司 | A kind of high water resistance Intelligent lower voltage switch cabinet |
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Cited By (3)
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| CN104263045A (en) * | 2014-09-19 | 2015-01-07 | 江苏海晟涂料有限公司 | Water-based epoxy anticorrosive paint and preparation method thereof |
| CN107298920A (en) * | 2016-04-15 | 2017-10-27 | 江苏欣法电气有限公司 | A kind of high water resistance Intelligent lower voltage switch cabinet |
| CN107083148A (en) * | 2017-04-12 | 2017-08-22 | 河北晨阳工贸集团有限公司 | Suitable for the power transmission shaft water-thinned antirust primer and preparation method of electrostatic spraying |
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