CN103397327B - For watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof - Google Patents
For watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof Download PDFInfo
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- CN103397327B CN103397327B CN201310308278.0A CN201310308278A CN103397327B CN 103397327 B CN103397327 B CN 103397327B CN 201310308278 A CN201310308278 A CN 201310308278A CN 103397327 B CN103397327 B CN 103397327B
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- coating
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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Abstract
The present invention relates to a kind of for watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof, its raw material is made up of the component with following mass percent: the silane coupling agent of 2% ~ 10%, the titanate coupling agent of 1% ~ 5%, 20% ~ 40% silicate, the organic solvent of 3% ~ 5%, C13 carbonyl isomery alcohol ethoxylates tensio-active agent, the fluorocarbon polymer micro mist of 10 ~ 30% or the deionized water of fluorocarbon polymer emulsion and surplus of 0.1% ~ 0.5%.The present invention has Environmental Safety, can improve the micro-coating adhesion of zinc-base, hardness, acid-fast alkali-proof performance, heat-resisting ability, reduces the feature of frictional coefficient and torque coefficient.
Description
Technical field
The present invention relates to a kind of for watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof, belong to metal zinc-base micro-coating post-processing technology field.
Background technology
The micro-coating treatment process of conventional metals, especially steel, cast iron and alloy zinc-base thereof comprises electro-galvanizing, Dacroment, Geomet three kinds, and wherein the micro-paint coating process of zinc-base is based on Dacroment and Geomet.Dacroment and Geomet form the tectal process of sheet zinc-base by physics and chemistry method in metallic surface, the tectum formed is referred to as Dacroment and Geomet, also known as the micro-coating of zinc-base, its object mainly provides protection to matrix metal, prevents metal to be corroded to a great extent; The resistance to neutral salt spray performance of metal can be significantly improved.But coating is scratch resistance not, hardness is low, and not strong alkali-acid resistance, poor at outdoor weather resistance, result of use is poor sometimes, well can not play the protection effect to metal.The research direction of the micro-coating of current zinc-base can around raising coating hardness, improve acid-fast alkali-proof, reduce the aspects such as coating frictional coefficient and carry out.
Also the research carrying out aftertreatment in the micro-coating of zinc-base is had at present, substantially be adopt solvent-borne type or water-borne coatings to close in the micro-coating of zinc-base, sealing treatment is made as adopted water-borne acrylic coatings, metallic surface is finally made to form epoxy or acrylic acid or the like organic resin coating, to improve hardness and the acid-fast alkali-proof performance of the micro-coating of zinc-base.But because organic coating and the micro-coating of zinc-base are can not with chemical bonds, so the bonding force of coating system after process has much room for improvement.Secondly, because general organic resin high thermal resistance is poor, be not suitable for being used in applied at elevated temperature occasion, so the final micro-coating resistance to elevated temperatures of zinc-base also has much room for improvement.Moreover, because organic coating thickness is thicker, so the thickness of the final micro-coating of zinc-base is also thicker, be not suitable for being used in the surface treatment of screw, standardized component that nut equidimension is little, therefore the sticking power after this disposal methods and high thermal resistance ability, coat-thickness all need to improve, and smell is comparatively large, and there is certain potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of environmental protection, safety can improve acid-fast alkali-proof ability, reduce coating frictional coefficient, and can use under the high temperature conditions for watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof.
The present invention is the technical scheme achieved the above object: for watersoluble closed dose of the micro-coating of zinc-base, it is characterized in that: its raw material is made up of the component with following mass percent,
Wherein: the particle diameter of described fluorocarbon polymer micro mist is at 10 ~ 20 microns.
Described organic solvent is organic solvent is alcohol organic solvent, and alcohol organic solvent is one of them or any two above alcohol mixture of ethanol, butanols, ethylene glycol, Diethylene Glycol, triethylene glycol, propylene glycol, dipropylene glycol or tripropylene glycol.
Described silicate is the wherein a kind of or two or more arbitrarily mixture of water glass, potassium silicate or lithium silicate.
Described fluorocarbon polymer micro mist is ptfe micropowder or vinylidene micro mist.
Described fluorine carbon emulsion is ptfe emulsion or vinylidene emulsion.
The present invention is used for the preparation method of watersoluble closed dose of the micro-coating of zinc-base, it is characterized in that: by mass percentage, silane coupling agent, titanate coupling agent and organic solvent are added in 60% deionized water of deionized water total amount, is stirred well to and dissolves completely, obtained work in-process A; Silicate, C13 carbonyl isomery alcohol ethoxylates tensio-active agent and fluorocarbon polymer micro mist or fluorocarbon polymer emulsion are added in remaining deionized water and fully stir and dissolve, obtained work in-process B; During use, obtained work in-process A is joined in obtained work in-process B and fully stir obtained watersoluble closed dose.
The present invention adopts silicate, silane coupling agent and titanate coupling agent as the main organic moiety of film forming, silane coupling agent can be able to be hydrolyzed by its hydrolysising group in water-based system, generate active silanol group after hydrolysis can align on surface, Si-O-Me covalent bonds can be formed by osmosis and metal base surface with the micro-coatingsurface of zinc-base, pass through crosslinking reaction, and then carry out well-regulated distribution, form reticulated structure, give excellent sticking power, make the micro-coating system of zinc-base have good bonding force.Can hydrolysis reaction be there is in water-based system in titanate coupling agent of the present invention by its lower alkyloxy, to generate active silanol group after hydrolysis and can form unimolecular film with the micro-coatingsurface of zinc-base by osmosis and metal base surface chemical bonds, reach the object of chemical coupling, titanate coupling agent and silane coupling agent is made to form the effect of some face dual combination, and produce strong absorption, coating is made to have good sticking power, especially, titanium elements antiseptic property is good, often make chemical industry equipment, space shuttle corrosion resistant material, so the unit molecule rete that titanate coupling agent is formed has special passivation chemoproection effect to metallic surface, provide the anticorrosion of rete and rustless property.The present invention can form the reticulated structure of inorganic silicon dioxide class under the high temperature conditions by silicate; simultaneously with zinc-base micro-coating generation chemical reaction; form chemical bonds; therefore fine and close protective layer can be formed; generate silicon titanium class inorganic substances compound membrane after final encapsulant low-temperature curing, therefore can improve acid-fast alkali-proof and the resistance to elevated temperatures of coating further, thin to the present invention's watersoluble closed dose of more general organic coating of rete; and encapsulant is water-based system, meet Environmental Safety requirement.The present invention adopts organic solvent to ensure the storage stability of watersoluble closed dose, plays stablizer.The present invention by add C13 carbonyl isomery alcohol ethoxylates tensio-active agent make encapsulant and substrate wetting energy good, penetrating power is strong, evenly can effectively process the micro-coating of zinc-base, and play overall protected effect.The present invention is by adding fluorine carbon polymerization micro mist or fluorine carbon polymerized emulsion can reduce frictional coefficient or the torque coefficient of coating greatly, improve the non-adhesion behavior of the micro-coating of zinc-base, make the micro-coating of zinc-base can be used for the auto-parts of low-friction coefficient requirement, as the surface treatment of screw, standardized component that nut small size is little.Watersoluble closed dose of use properties of the present invention is good, and Environmental Safety performance is good, and use cost is low, can normal temperature or low-temperature curing, energy-conservation, is the superior prod of the micro-coating aftertreatment of zinc-base.
Embodiment
For the micro-coating of zinc-base watersoluble closed dose of the present invention, its raw material is made up of the component with following mass percent: the silane coupling agent of 2% ~ 10%, the titanate coupling agent of 1% ~ 5%, the silicate of 20% ~ 40%, the organic solvent of 3% ~ 5%, the C13 carbonyl isomery alcohol ethoxylates tensio-active agent of 0.1% ~ 0.5%, the fluorocarbon polymer micro mist of 10 ~ 30% or the deionized water of fluorocarbon polymer emulsion and surplus, the particle diameter of fluorocarbon polymer micro mist is at 10 ~ 20 microns, and above-mentioned raw materials can commercially be buied.
Organic solvent of the present invention is alcohol organic solvent, this alcohol organic solvent adopts one of them or alcohol mixtures two or more arbitrarily of ethanol, butanols, ethylene glycol, Diethylene Glycol, triethylene glycol, propylene glycol, dipropylene glycol or tripropylene glycol, during mixing, mass percent is not limit, and is ensured the storage stability of watersoluble closed dose by organic solvent.Silicate of the present invention is the wherein a kind of or two or more arbitrarily mixture of water glass, potassium silicate or lithium silicate; during the mixing of water glass, potassium silicate or lithium silicate, its mass percent is not limit; the present invention can form the reticulated structure of inorganic silicon dioxide class under the high temperature conditions by silicate; and with zinc-base micro-coating generation chemical reaction; can chemical bonds be formed and form fine and close protective layer; silicon titanium class inorganic substances compound membrane is generated, to improve acid-fast alkali-proof and the resistance to elevated temperatures of coating after low-temperature curing.Fluorocarbon polymer micro mist of the present invention is ptfe micropowder or vinylidene micro mist, the particle diameter of ptfe micropowder or vinylidene micro mist is at 10 ~ 20 microns, and fluorine carbon emulsion is ptfe emulsion or vinylidene emulsion, frictional coefficient or the torque coefficient of coating is greatly reduced by carbon polymer, improve the non-adhesion behavior of the micro-coating of zinc-base, effective reduction coating frictional coefficient, can be used for the surface treatment of undersize part.
The present invention is used for the concrete raw material of watersoluble closed dose of the micro-coating of zinc-base and mass percent in table 1.
Table 1
By shown in table 1, silane coupling agent, titanate coupling agent and organic solvent by mass percentage, add in 60% deionized water of deionized water total amount, are stirred well to and dissolve completely by the present invention, obtained work in-process A; The carbonyl isomery alcohol ethoxylates tensio-active agent of silicate, C13 and fluorocarbon polymer micro mist or fluorocarbon polymer emulsion are added in remaining deionized water and fully stir and dissolve, obtained work in-process B; During use, obtained all work in-process A are added in obtained all work in-process B and fully stirs obtained watersoluble closed dose.
The present invention is coated in the micro-coating of zinc-base by obtained watersoluble closed dose, and after dry solidification, its resistance to neutral salt spray, liquid medium performance, sticking power detection etc. detect by GB/T5270-2005, GB/T10125-1997 and GB/T6739-1996 and GB/T9274-1988 national standard; Simultaneously by micro-for independent zinc-base coating, do not make sealing treatment, detect by identical method, make in comparative example 1; Make sealing treatment at zinc-base micro-coating use acrylic coating, coating dry solidification is undertaken detecting as a comparison case 2 by identical method, and the neutral salt spray of coating, acid resistance, alkali resistance, hardness, torque coefficient and sticking power are specifically shown in Table 2.
Table 2
As can be seen from Table 2, adopt the micro-coating of the zinc-base of watersoluble closed dose of the present invention compared with the micro-coating of independent zinc-base, its neutral salt spray, acid resistance, alkali resistance and hardness are all improved largely, and reduce torque coefficient, improve hardness and the sticking power of coating.Compared with contrast 2, its property salt fog, acid resistance and alkali resistance and hardness also improve a lot, and also reduce torque coefficient, and have good sticking power.
Claims (2)
1. one kind for watersoluble closed dose of the micro-coating of zinc-base, it is characterized in that: its raw material is made up of the component with following mass percent,
Wherein: the particle diameter of described fluorocarbon polymer micro mist is at 10 ~ 20 microns, and described alcohol organic solvent is one of them or any two above alcohol mixture of ethanol, butanols, ethylene glycol, Diethylene Glycol, triethylene glycol, propylene glycol, dipropylene glycol or tripropylene glycol; Described silicate is the wherein a kind of or two or more arbitrarily mixture of water glass, potassium silicate or lithium silicate; Described fluorocarbon polymer micro mist is ptfe micropowder or vinylidene micro mist; Described fluorocarbon polymer emulsion is ptfe emulsion or vinylidene emulsion.
2. the preparation method of watersoluble closed dose for the micro-coating of zinc-base according to claim 1, it is characterized in that: by mass percentage, silane coupling agent, titanate coupling agent and alcohol organic solvent are added in 60% deionized water of deionized water total amount, be stirred well to and dissolve completely, obtained work in-process A; Silicate, C13 carbonyl isomery alcohol ethoxylates tensio-active agent and fluorocarbon polymer micro mist or fluorocarbon polymer emulsion are added in remaining deionized water and fully stir and dissolve, obtained work in-process B; During use, obtained work in-process A is joined in obtained work in-process B and fully stir obtained watersoluble closed dose.
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| CN201310308278.0A CN103397327B (en) | 2013-07-22 | 2013-07-22 | For watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof |
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| CN201310308278.0A CN103397327B (en) | 2013-07-22 | 2013-07-22 | For watersoluble closed dose of the micro-coating of zinc-base and preparation method thereof |
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| CN105670480B (en) * | 2016-03-31 | 2018-05-11 | 广州超邦化工有限公司 | Zn-ni alloy deposits and zinc coat nano modification sealer and its preparation, application method |
| CN113402689A (en) * | 2021-06-23 | 2021-09-17 | 科文特亚环保电镀技术（江苏）有限公司 | Sealing agent for corrosion-resistant electroplated nickel layer |
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| JP5653084B2 (en) * | 2010-06-25 | 2015-01-14 | 株式会社クボタ | Iron-based member subjected to surface treatment and surface treatment method of iron-based member |
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| CN101020866A (en) * | 2007-03-12 | 2007-08-22 | 常州君合达克罗涂覆工程技术有限公司 | Solar energy silicon crystal chip scavenger |
| CN101033363A (en) * | 2007-04-10 | 2007-09-12 | 大连工业大学 | Environment-friendly type galvanizing metal surface treating agent |
| JP4614376B1 (en) * | 2010-07-26 | 2011-01-19 | 日本歯科薬品株式会社 | Dental root canal filling sealer composition |
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Address after: 213000 No. 58 Tongjiang North Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Boye Industrial Investment Co., Ltd. Address before: 213034 No. 58 Tongjiang North Road, Xinbei District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Boye Coating Engineering Co., Ltd. |
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