CN104497658A - Cold galvanizing anticorrosive paint and preparation method thereof - Google Patents
Cold galvanizing anticorrosive paint and preparation method thereof Download PDFInfo
- Publication number
- CN104497658A CN104497658A CN201410778413.2A CN201410778413A CN104497658A CN 104497658 A CN104497658 A CN 104497658A CN 201410778413 A CN201410778413 A CN 201410778413A CN 104497658 A CN104497658 A CN 104497658A
- Authority
- CN
- China
- Prior art keywords
- cold galvanizing
- protective system
- zinc powder
- resin
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a cold galvanizing anticorrosive paint and a preparation method thereof. The cold galvanizing anticorrosive paint comprises the following components in parts by weight: 70-87 parts of zinc powder, 2-6 parts of resin, 0.1-0.6 part of an anti-setting agent, 0.1-0.6 part of a dispersant, 9-15 parts of a diluent and 2-5 parts of zirconium dioxide, wherein the resin is at least one selected from a group consisting of vinyl methyl ester, chlorinated rubber, an EVOH ethylene-vinyl alcohol copolymer resin and a MP vinyl chloride-isobutyl ether copolymer resin.
Description
Technical field
The present invention relates to a kind of cold galvanizing protective system and preparation method thereof, more particularly, the present invention relates to and a kind ofly can reduce cold galvanizing protective system of the porosity of coating dry film coating and preparation method thereof.
Background technology
Metallic corrosion, throughout national product every field, from daily productive life to industrial and agricultural production, from the development being implemented to the top science of novel process, all also exists etching problem.At present, 10% of the annual Iron and Steel Production total amount of China is corroded, in worldwide, the metal be corroded accounts for the 2.5%-4% of production, corrosion can make a large amount of hard-won useful materials become waste material, the equipment timeliness of causing not only causes tremendous economic loss also can cause catastrophic failure, pollutes and adverse condition, and indirect economic loss is difficult to estimation.Protection against corrosion and environmental issue extremely urgent.For large-scale steel structure, as electric power pylon etc. mostly adopts the mode of galvanizing to carry out protective treatment, but zinc coating can be damaged sometimes in steel construction transport and installation process, as the field transport operation of steel construction of transmitting electricity, physical abuse and the welding of installation process damage, in order to the life-time service of steel construction must carry out repair process to zinc coating injury region, current zinc coating reparation adopts cold galvanizing coating more and more.
Cold galvanizing protective system is the thick coating of one be modulated into a kind of binding agent and spherical zinc powder of high-adhesion, adds other auxiliary agents, is coated on metallic surface.Due to the effect of binding agent, zinc powder is covered in metallic surface closely, reaches zinc layers protected effect.But in order to pursue high dry film zinc content in ball zinc paint, to ensure conduction and the work-ing life of coating, in slip, the add-on of spherical zinc powder is up to more than 80%.So a large amount of interpolation zinc powders has substantially exceeded the critical volume concentration (CPVC) of filler, at this moment in slip the quantity not sufficient of caking agent to fill the intergranular hole of spherical zinc, the coating structure obtained is made to have porousness, porosity is large, shielding is poor, and bubble on the surface paint can be caused to be inclined to be increased.
The product of the product of present cold galvanizing protective system comparative maturity as all higher in Zn content such as the Metaflux of Germany, the ROVAL of Japan (zinc content be 96%), all adopts granular zinc powder.Publication number is that the Chinese invention patent application of CN 2203395 gives a kind of zinc-rich coatings, and be made up of particulate state Zn powder, resinene, thinner, antisettling agent and dispersion agent, dry film Zn content can reach more than 96%.In addition, publication number is that the Chinese invention patent of CN 101445676A gives a kind of high-efficient zinc-rich anti-corrosive paint and preparation thereof, be characterized in adopting active zinc powder, in dry film, zinc content is greater than 96.5%, solves and high purity zinc powder Zn content in dry film must be used just to reach the prior art problem of 96%.
But, the cold galvanizing coating dry film zinc content that above product and technical scheme relate to all reaches more than 90%, and employing granular zinc powder, zinc powder volumetric concentration is considerably beyond CPVC, binding agent is not enough to fill up the hole being coated with interlayer, thus define mushy coating structure, the premature corrosion of coating finally can be caused to destroy.
Summary of the invention
An aspect of of the present present invention provides a kind of cold galvanizing protective system that can reduce the porosity of coating dry film coating.
An aspect of of the present present invention provides a kind of preparation method that can reduce the cold galvanizing protective system of the porosity of coating dry film coating.
An aspect of of the present present invention provides a kind of cold galvanizing protective system that can improve coating shield and preparation method thereof.
An aspect of of the present present invention provides a kind of cold galvanizing protective system and preparation method thereof that can reduce bubble on the surface paint tendency.
An aspect of of the present present invention relates to a kind of cold galvanizing protective system, and the various composition weight number ratios of described cold galvanizing protective system are: zinc powder 70-87 part; Resin 2-6 part; Antisettling agent 0.1-0.6 part; Dispersion agent 0.1-0.6 part; Thinner 9-15 part; Zirconium dioxide 2-5 part, wherein, described resin is at least one selected in the group be made up of hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins.
According to a further aspect in the invention, the particle diameter of zinc powder is not more than 500 orders.
According to a further aspect in the invention, antisettling agent is organobentonite.
According to a further aspect in the invention, dispersion agent is at least one selected in the group be made up of organo silane coupling agent, diethyl diallyl ammonium chloride.
According to a further aspect in the invention, thinner is at least one selected in the group be made up of toluene, ethanol, methylethylketone.
According to a further aspect in the invention, the nanometer titanium dioxide zirconium solution utilizing concentration to be 20-30% is to add described zirconium dioxide.
Another aspect of the present invention provides a kind of preparation method of cold galvanizing protective system, the method comprise the steps: by 70-87 part zinc powder and 9-15 part dispersant even, fully grind under normal temperature condition, then sedimentation, obtain the active zinc powder powder slurry that concentration is greater than 99%; By the active zinc powder powder of gained slurry and 2-6 part mixed with resin, be stirred under the speed of 700rpm and mix; Add 0.1-0.6 part antisettling agent, 0.1-0.6 part dispersion agent, under the speed of 2000rpm, be stirred to the glue that mixed system is thickness; Stirring velocity is reduced to 1500rpm, adds 2-5 part zirconium dioxide, continue to be stirred to and mix; Stirring velocity is reduced to 650rpm, be stirred to and form stable mixed system, wherein, described resin is at least one selected in the group be made up of hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins.
According to a further aspect in the invention, the particle diameter of zinc powder is not more than 500 orders.
According to a further aspect in the invention, the nanometer titanium dioxide zirconium solution utilizing concentration to be 20-30% is to add described zirconium dioxide.
According to a further aspect in the invention, antisettling agent is organobentonite.
According to a further aspect in the invention, dispersion agent is at least one selected in the group be made up of organo silane coupling agent, diethyl diallyl ammonium chloride.
According to a further aspect in the invention, thinner is at least one selected in the group be made up of toluene, ethanol, methylethylketone.
Embodiment
Hereinafter, describe the present invention in more detail with reference to specific embodiments of the invention, but the present invention can carry out embodiment in many different forms, and the embodiment set forth below being not limited to.On the contrary, provide these embodiments to make the disclosure to be thoroughly with complete, and scope of the present invention will be conveyed to those skilled in the art fully.
According to one embodiment of present invention, a kind of cold galvanizing protective system can comprise (counting by weight): zinc powder 70-87 part; Resin 2-6 part; Antisettling agent 0.1-0.6 part; Dispersion agent 0.1-0.6 part; Thinner 9-15 part; Zirconium dioxide 2-5 part.
Here, zinc powder can be that particle diameter is not more than 500 object zinc powders.In other words, the average particulate diameter of zinc powder is no more than about 7 μm.
According to one embodiment of present invention, the particle in zinc powder can be spherical.But the present invention is not limited thereto, the zinc powder with other concrete shape also may be used for the present invention.
In cold galvanizing protective system of the present invention, resin mainly plays the effect of filmogen, each constituent materials in cold galvanizing protective system can be combined, base material is formed the film of even compact, can form coating after solidification.According to an exemplary embodiment, at least one selected in the group that resin can be hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins form.
In one embodiment of the invention, antisettling agent can be organobentonite.But the present invention is not limited thereto, anti-settling effect can be played and other antisettling agent do not reacted with other component also may be used for cold galvanizing protective system of the present invention.
At least one selected in the group that dispersion agent can be made up of organo silane coupling agent, diethyl diallyl ammonium chloride.But the present invention is not limited thereto, short dissemination can be played and other dispersion agent do not reacted with other component also may be used for cold galvanizing protective system of the present invention.
At least one selected in the group that thinner can be made up of toluene, ethanol, methylethylketone.But the present invention is not limited thereto, can diluting effect be played and other thinner (such as, organic or inorganic solvent) do not reacted with other component also may be used for cold galvanizing protective system of the present invention.
According to one exemplary embodiment of the present invention, the nanometer titanium dioxide zirconium solution that concentration can be utilized to be 20-30% is to add described zirconium dioxide.Such as, according to one exemplary embodiment of the present invention, existing VK-R30W nanometer titanium dioxide zirconium solution on market can be used.
According to another exemplary embodiment of the present invention, a kind of preparation method of cold galvanizing protective system can comprise the steps: by 70-87 part zinc powder and 9-15 part dispersant even, fully grind under normal temperature condition, then sedimentation, obtain the active zinc powder powder slurry that concentration is greater than 99%; By the active zinc powder powder of gained slurry and 2-6 part mixed with resin, be stirred under the speed of about 700rpm and mix; Add 0.1-0.6 part antisettling agent, 0.1-0.6 part dispersion agent, under the speed of about 2000rpm, be stirred to the glue (such as, becoming the state of similar thick gel) that mixed system is thickness; Stirring velocity is reduced to about 1500rpm, adds 2-5 part zirconium dioxide, continue to be stirred to and mix; Stirring velocity is reduced to about 650rpm, be stirred to and form stable mixed system, wherein, described resin is at least one selected in the group be made up of hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins.
According to this exemplary embodiment, the milling time of the mixed solution of zinc powder and dispersion agent can be about 20 hours, and the settling time can be about 4 hours.In the step making active zinc powder powder starch with mixed with resin, can stir about 10 minutes with the speed of about 700rpm.After adding antisettling agent and dispersion agent, the time of stirring under the speed of about 2000rpm can be about 1 hour, thus makes gains be the glue of thickness, then, can be about 15 minutes with the time that the speed of the about 1500rpm of low speed stirs, thus each component be mixed equably.Then, continue to stir about 15 minutes with the low speed of about 650rpm, thus form stable mixed system.
Can be same or similar with the respective components in previous embodiment according to the present invention according to components such as the zinc powder in the method for this exemplary embodiment, resins.Therefore, in order to avoid easily, the detailed description to them will be omitted here.
In more detail the present invention is described below with reference to concrete example.
Example 1
Select and be not more than 500 orders (median size is less than 7 μm) zinc powder 80 parts, toluene 12 parts mixing, grind 20 hours under normal temperature condition, then through sedimentation 4 hours, obtain the active zinc powder powder slurry being greater than 99%; Active zinc powder powder is starched 92 parts to mix with the hexenoic acid methyl esters of 4 parts, stir 10min at 700rpm; Add 0.5 part of antisettling agent again, 0.3 part of organo silane coupling agent, stir 1h at 2000rpm; Then reduce rotating speed to 1500rpm, add 4 parts of nano zirconium dioxides (VK-R30W), continue to stir 15min.Reduce rotating speed to 650rpm, stir 15min, discharging is packed.
Example 2
Select and be not more than 500 orders (median size is less than 7 μm) zinc powder 83 parts, ethanol 10 parts mixing, grind 20 hours under normal temperature condition, then through sedimentation 4 hours, obtain the active zinc powder powder slurry being greater than 99%; Active zinc powder powder is starched 93 parts to mix with the hexenoic acid methyl esters of 3 parts, stir 10min at 700rpm; Add 0.6 part of antisettling agent again, 0.3 part of organo silane coupling agent, stir 1h at 2000rpm; Then reduce rotating speed to 1500rpm, add 4 parts of nano zirconium dioxides (VK-R30W), continue to stir 15min.Reduce rotating speed to 650rpm, stir 15min, discharging is packed.
Comparative examples 1
Select and be not more than 500 orders (median size is less than 7 μm) zinc powder 83 parts, ethanol 10 parts mixing, grind 30 hours under normal temperature condition, then through sedimentation 5 hours, obtain the active zinc powder powder slurry being greater than 99%; Active zinc powder powder is starched 93 parts to mix with the hexenoic acid methyl esters of 3 parts, then add 0.6 part of antisettling agent, 0.3 part of organo silane coupling agent, stir 50min at 2000rpm and mix to system, discharging is packed.
Comparative examples 2
Select and be not more than 500 orders (median size is less than 7 μm) zinc powder 60 parts, ethanol 4 parts mixing, grind 10 hours under normal temperature condition, then through sedimentation 4 hours, obtain the active zinc powder powder slurry being greater than 99%; Active zinc powder powder is starched 93 parts to mix with the hexenoic acid methyl esters of 5 parts, then add 0.6 part of antisettling agent, 0.1 part of organo silane coupling agent, stir 2h at 1000rpm and mix to system, discharging is packed.
By the cold galvanizing anti-corrosion paint by example 1 to example 2 and comparative examples 1 to comparative examples 2 gained to area be 1cm × 1cm steel plate on, after drying, gained dry film coating is tested.List in test result table 1 below.
Wherein, utilize GB/T l7721-1999 metal cladding ferroxyl test method to carry out the porosity of testing coating, thus determine the shielding of coating.
Wherein, the solidity to corrosion of testing coating is carried out by neutral salt spray test method.
Table 1
| Zinc content (%) | Porosity (%) | Solidity to corrosion | Bubble | |
| Example 1 | 96.5 | 0.1 | Excellent | Nothing |
| Example 2 | 96.5 | 0.1 | Excellent | Nothing |
| Comparative examples 1 | 97 | 0.5 | Good | Nothing |
| Comparative examples 2 | 97 | 0.5 | Good | Nothing |
Can be found out by table 1, the Zn content of the cold galvanizing protective system utilizing method of the present invention to obtain reaches 96.5%, solve and high purity zinc powder Zn content in dry film must be used just to reach the prior art problem of 96%, coating physical and mechanical properties is excellent, and antiseptic property is remarkable.In addition, utilize the porosity of the dry film obtained according to cold galvanizing protective system of the present invention greatly to reduce, thus avoid the various problems caused because dry film porosity is large in prior art.
Although describe the present invention in conjunction with the specific embodiments, but those skilled in the art are to be understood that, without departing from the spirit and scope of the present invention, can carry out the various changes in form and details to these exemplary embodiments, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a cold galvanizing protective system, is characterized in that, the various composition weight number ratios of described cold galvanizing protective system are:
Zinc powder 70-87 part;
Resin 2-6 part;
Antisettling agent 0.1-0.6 part;
Dispersion agent 0.1-0.6 part;
Thinner 9-15 part;
Zirconium dioxide 2-5 part,
Wherein, described resin is at least one selected in the group be made up of hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins.
2. cold galvanizing protective system as claimed in claim 1, it is characterized in that, the particle diameter of zinc powder is not more than 500 orders.
3. cold galvanizing protective system as claimed in claim 1, it is characterized in that, antisettling agent is organobentonite.
4. cold galvanizing protective system as claimed in claim 1, it is characterized in that, dispersion agent is at least one selected in the group be made up of organo silane coupling agent, diethyl diallyl ammonium chloride.
5. cold galvanizing protective system as claimed in claim 1, it is characterized in that, thinner is at least one selected in the group be made up of toluene, ethanol, methylethylketone.
6. cold galvanizing protective system as claimed in claim 1, it is characterized in that, the nanometer titanium dioxide zirconium solution utilizing concentration to be 20-30% is to add described zirconium dioxide.
7. a preparation method for cold galvanizing protective system, is characterized in that the method comprises the steps:
70-87 part zinc powder and 9-15 part dispersant is even, fully grind under normal temperature condition, then sedimentation, obtain the active zinc powder powder slurry that concentration is greater than 99%;
By the active zinc powder powder of gained slurry and 2-6 part mixed with resin, be stirred under the speed of 700rpm and mix;
Add 0.1-0.6 part antisettling agent, 0.1-0.6 part dispersion agent, under the speed of 2000rpm, be stirred to the glue that mixed system is thickness;
Stirring velocity is reduced to 1500rpm, adds 2-5 part zirconium dioxide, continue to be stirred to and mix;
Stirring velocity is reduced to 650rpm, is stirred to and forms stable mixed system,
Wherein, described resin is at least one selected in the group be made up of hexenoic acid methyl esters, chlorinated rubber, EVOH ethylene-vinyl alcohol copolymer resin, MP vinylchlorid ethyl isobutyl ether copolymer resins.
8. the preparation method of cold galvanizing protective system as claimed in claim 7, it is characterized in that, the particle diameter of zinc powder is not more than 500 orders.
9. the preparation method of cold galvanizing protective system as claimed in claim 7, it is characterized in that, the nanometer titanium dioxide zirconium solution utilizing concentration to be 20-30% is to add described zirconium dioxide.
10. the preparation method of cold galvanizing protective system as claimed in claim 7, is characterized in that:
Antisettling agent is organobentonite;
Dispersion agent is at least one selected in the group be made up of organo silane coupling agent, diethyl diallyl ammonium chloride; And/or
Thinner is at least one selected in the group be made up of toluene, ethanol, methylethylketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778413.2A CN104497658A (en) | 2014-12-15 | 2014-12-15 | Cold galvanizing anticorrosive paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778413.2A CN104497658A (en) | 2014-12-15 | 2014-12-15 | Cold galvanizing anticorrosive paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104497658A true CN104497658A (en) | 2015-04-08 |
Family
ID=52939120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410778413.2A Pending CN104497658A (en) | 2014-12-15 | 2014-12-15 | Cold galvanizing anticorrosive paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104497658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985782A (en) * | 2019-04-10 | 2019-07-09 | 贵州钢绳股份有限公司 | A method of antirust treatment is carried out in drawing block inner wall using cold galvanizing technique |
| CN111876030A (en) * | 2020-08-14 | 2020-11-03 | 上海昊锌科技有限公司 | Cold galvanizing coating and preparation method thereof |
-
2014
- 2014-12-15 CN CN201410778413.2A patent/CN104497658A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109985782A (en) * | 2019-04-10 | 2019-07-09 | 贵州钢绳股份有限公司 | A method of antirust treatment is carried out in drawing block inner wall using cold galvanizing technique |
| CN111876030A (en) * | 2020-08-14 | 2020-11-03 | 上海昊锌科技有限公司 | Cold galvanizing coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104395418B (en) | Anticorrosive coating composition and application thereof | |
| CN102627903B (en) | Environment-friendly water-based static electricity conductive corrosion-resistant coating and preparation method thereof | |
| CN105419564A (en) | Nano graphene oxide modified double-component aqueous epoxy anti-corrosion coating and preparation method thereof | |
| CN102911586B (en) | Epoxy anticorrosion decoration paint | |
| CN106118295A (en) | A kind of aqueous bottom surface unification Corrosion resisting paint without need of cleaning rust and preparation method thereof | |
| CN105623473A (en) | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid | |
| CN103881531A (en) | Epoxy zinc-enriched coating and preparation method thereof | |
| CN102485806B (en) | Water-based inorganic zinc shop primer, its preparation method and its application | |
| CN103497636A (en) | Waterborne epoxy zinc-rich paint modified by nanometer conductive carbon material and preparation method thereof | |
| CN104710850A (en) | Cold galvanizing coating and preparation method thereof | |
| CN101104764A (en) | Double-anticorrosion paint for steel and preparing method thereof | |
| CN103666202B (en) | A kind of environment-friendlyoily oily antirust paint and preparation method thereof | |
| CN102559002A (en) | High-zinc-content mono-component epoxy anti-corrosive paint | |
| CN104877402A (en) | Compound water-based inorganic anticorrosive paint and preparation method | |
| CN109608994A (en) | Graphene anticorrosive paint and preparation method thereof applied to marine settings | |
| CN107603420A (en) | Graphene corrosion-resistant epoxy paint and preparation method thereof | |
| CN109679392B (en) | Anti-corrosion and anti-attrition powder coating and preparation method thereof | |
| CN105713480A (en) | Epoxy zinc-rich primer and manufacturing method thereof | |
| CN107828309B (en) | Dispersion used for graphene anticorrosive paint and preparation method thereof | |
| CN100451079C (en) | Bicomponent epoxy zinc enriched base paint and its manufacturing method | |
| CN101412791B (en) | Epoxy organosilicon phosphoester compound modified acrylic resin | |
| CN104497658A (en) | Cold galvanizing anticorrosive paint and preparation method thereof | |
| CN108864834A (en) | A kind of antirusting paint | |
| CN102723620B (en) | Composite anticorrosion grounding device and preparation method thereof | |
| CN103923503B (en) | A kind of aqueous epoxide resin paint compound dodges rust inhibitor and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |