CN101225280B - Dual-component silicane polymeric metal heavy-duty aqueous industrial coating - Google Patents
Dual-component silicane polymeric metal heavy-duty aqueous industrial coating Download PDFInfo
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Abstract
The invention relates to a bicomponent metal anticorrosion heavy-duty water-soluble industrial coating, in particular to a coating polymerized by silane polymer, firming agent and metal shield emulsified polymer made up of metal pigment and filler, resin, water and addition agent; wherein, the silane polymer is polymerized by bi- (triethoxy silyl propyl) amine, ethylene acetoxytrimethyl silane and tetraethoxy silane. The silane polymer has the performance of overcoming gel defects in the process of silane polymerization, and forms an interpenetrating network with the metal shield emulsified polymer made up of metal pigment and filler, resin, water and addition agent among molecules, to make a metal heavy-duty water industrial coating with an excellent antiseptic property. The silane polymer metal heavy-duty water industrial coating is also a non-solvent heavy-duty anticorrosion industrial coating used on the surface of metal material with low VOC content and environmental friendliness.
Description
Technical field
The present invention relates to a kind of bi-component waterborne metal heavy-duty industrial coating; relate in particular to a kind of by the metal color stuffing; resin; water; metal protection barrier Emulgating polymers that auxiliary agent is formed and silane polymer and solidifying agent form through letex polymerization; silane polymer of the present invention has the performance that produces the gel defective when overcoming polymerizable silane; also will with by the metal color stuffing; resin; water; inierpeneirating network structure between the metal protection barrier Emulgating polymers ingredient that auxiliary agent is formed; thereby the metal heavy-duty aqueous industrial coating of having formed the antiseptic property excellence, this silicane polymeric metal heavy-duty aqueous coating also are a kind of low VOC content and the environment amenable heavy anticorrosion industrial coating of non-solvent that is used for metallic substrate surface.
Background technology
In industries such as chemical industry, oil, machinery, light industry, urban construction, most equipment, pipeline, product corrode owing to the existence of corrosive medium, and the concentration of corrosive medium changes with the variation of envrionment temperature, and therefore corrosion is very serious.In various aseptic technics, because the anticorrosion with coat easy construction, wide adaptability is not subjected to the constraint of device area and shape, and recoat and reparation aspect expense are low and be used widely.Show according to Japan's corrosion and the investigation of protection against corrosion association; in seven big aseptic technic investments such as coating, metal finishing, corrosion resistant material, slushing oil, inhibiter, electro-chemical protection, corrosion research; the funds of anticorrosion with coat investment account for more than 60%, this shows the critical role of anticorrosion with coat and the active degree of research and development.
Protective system is the same with other coating, and its prescription is formed and mainly comprised base-material (resin), color stuffing, auxiliary agent and solvent.Binder resin is a filmogen, is the main component in the coating, and its molecular structure is determining the salient features of coating; Color stuffing is used for assisting isolates corrosion factor, can be divided into rust-stabilising pigment and laminal filler again according to the mechanism of action; Solvent is divided into organic or inorganic solvent and water, is used for dissolving binder resin, is convenient to the coating film forming.
Heavy-duty coating (Heavy-duty Coating) is meant in the corrosive environment of harshness and uses, comprises the matched coating that primary coat and face are coated with.So the coating that antiseptic property is strong, the coating long service life also can adapt to harsh metallic corrosion environment is called as metal heavy anticorrosion paint.
Organosilicon polymer is the speciality polymer material, and it is to grow up as the exotic materials of aircraft, rocket during World War II.Because organosilicon material has a series of excellent properties, has developed into novel chemical industry system technology-intensive, occupy certain status in national economy so far, and has made every profession and trade obtain huge economic benefit.Particularly in recent years because the development of hi-tech, the kind of organosilicon polymer obviously to functional type, become more meticulous, the direction of customizations, seriation develops, kind surplus its kind reaches 5000, and in continuous increase.It is to adapt to one of requirements of the times and material with fastest developing speed, so world many countries is not stinted a large amount of inputs in this field.Now, organosilicon chemical fundamentals theory, production technology, product application etc. have related to many scientific domains, are extremely rising industries.The silane process of surface treatment of metal is to rise by U.S. Department of Defense, Air Research Laboratory in 1992 to subsidize energetically, is under Wim.J.Ooij professor's the guidance at U.S. University of Cincinnati material, systematically the research and development technology of coming out.Through the rust-preventing characteristic of the metallic surface that silane treatment is crossed and protection against corrosion and to the adhesiveproperties excellence of organic coating.But when not painting, the silane rete is too thin and can't provide secular anti-corrosion protection to the metallic surface.Especially silane
Film can not as a kind of heavy anticorrosion end property coating or priming paint use and with the supporting use of finish paint.Since the later stage nineties in last century, some researchs were done to the Corrosion Protection that silane is used for ferrous metal and non-ferrous metal surface by domestic University Of Chongqing, Tongji University, Zhejiang University, East China University of Science, the Chinese Academy of Sciences and some enterprises, but did not bring the research field of water-based anticorrosive paint into.
Developed countries such as European Union, the U.S., Japan carry out new coating and paint environmental protection inspection and acceptance standard since on January 1st, 2007, June 1, and every liter VOC (organic volatile) can not surpass 100 grams in strict control coating and the paint.
Metal anti-corrosive paint mostly is solvent-borne type greatly, and the content height of volatile organic compounds causes environmental pollution.Water-borne coatings since VOC content seldom, construction process does not have fire hazard, is green environmental friendly coatings, is the trend that the modern metal anti-corrosive paint in the whole world is greatly developed.
Silane is the silica-based hybrid thing of a class, and its basic molecular formula is: R ' (CH
2) nSi (OR)
3Wherein OR is hydrolyzable group, and R ' is an organo-functional group.Its excellent preservative property and the glueability of organic coating mainly shown: on the metallic surface formation of silane film be from the interface of the hydrogen bond enrichment before condensing to polycondensation after the forming process of Si-O-Si and Si-O-Me covalent linkage, remaining silane molecule then forms the silane film of the tridimensional network with Si-O-Si on the metallic surface by the polycondensation between the SiOH group.
Silane molecule need be hydrolyzed before use usually, and different silane has different hydrolytic processes.Method commonly used is to make silane-water solution or solution of silane is dissolved in the component of coating.But its hydrolysising balance reaction formula simple table is shown:
Si(OR)
3+H
2O
Si(OH)
3+3ROH (1)
Main hydrolysate is SiOH.Formed the active SiOH group of capacity in solution, this solution just can have been handled as metallic surface.The hydrolysis reaction of silane progressively carries out, and also is the process of a polycondensation.Silane molecule after the hydrolysis (Si (OR)
3By the hydroxyl MeOH of its SiOH group and metallic surface, form hydrogen bond and be adsorbed in metallic substrate surface fast.In the dry process of metal base subsequently, SiOH group and the further polycondensation of MeOH group generate the Si-O-Me covalent linkage on the interface, and its balanced reaction formula is as follows:
SiOH
Silicon gastral cavity liquid+ MeOH
The metallic surface Si-O-Me
The interface+ H
2O (2)
Silane molecule then forms the silane film of the tridimensional network with Si-O-Si on the metallic surface by the polycondensation between the SiOH group:
SiOH
Silicon gastral cavity liquid+ SiOH
Silicon gastral cavity liquid 
Si-O-Si
Silicon gastral cavity film+ H
2O (3)
It is generally acknowledged that the formation of Si-O-Me key makes silane film closely be bonded in the metallic surface.The thickness of silane film depends primarily on the concentration of solution of silane, after the silane film forming is overlying on the metallic surface, because the SiOH group in the solution of silane and the MeOH group of metallic surface produce polycondensation, on the interface, form the very strong Si-O-Me covalent linkage of adhesive power.This key is with the Si-O-Si key, and interface zone forms a kind of new structure, or title " interfacial layer ".Because the silane interfacial layer combine with the metallic surface closely, the corrosion product of the generation of spot corrosion is in early days covered under the interfacial layer and more difficult mobile securely.So former spot corrosion has time enough passivation once more.And therefore the corrosion of metal on the macroscopic view also has been suppressed.Make firm being bonded together of silane and metallic surface though it should be noted that the Si-O-Me covalent linkage on the interface, the water stability of this key itself is also bad.When a large amount of water intrusion, the Si-O-Me covalent linkage can hydrolysis, forms Si-OH and Me-OH group again.Obviously, after Si-O-Me covalent linkage hydrolysis a large amount of on the interface, the bounding force at interface can reduce greatly, thereby causes silane film to peel off and further lose its antiseptic property from the metallic surface.Therefore, guarantee that the water resisting property of silane film is to prevent the hydrolysis of Si-O-Me covalent linkage, keep the key of interface good bond strength.Below two kinds of methods can effectively improve the water resisting property of silane film.
The one, make the abundant polycondensation of Si-OH group, form the good Si-O-Si tridimensional network of water resisting property; Second method is to adopt the silane that hydrophobic grouping is arranged.Along with the raising of silane film water resisting property, the water yield in the film is reduced widely.Prevent the hydrolysis of Si-O-Me covalent linkage thus, kept the interface good adhesive strength, and further guaranteed the antiseptic property of silane film.
Find silane polymer with stronger water resisting property and anti-corrosion function functional group; and can form intermolecular inierpeneirating network structure with the metal protection barrier Emulgating polymers that mainly forms by zinc powder and Resins, epoxy; thereby form the innovation result of the waterborne metal anti-corrosive paint of antiseptic property excellence, in the patent 200610022492.X of application, state.
But through the dual-component silicane polymeric metal heavy-duty aqueous industrial coating manufacturing practice in 1 year, we found by two-(the silica-based propyl group of trimethoxy first) amine (C
12H
31NO
6Si
2), vinyltriacetoxy silane (C
8H
12O
6Si) and tetraethoxysilane (C
8H
20O
4Si) aggregate into silane combination liquid after, silane combination liquid can produce gel in 40 days, this just can not guarantee the long-term storage of this coating B component product.
By the polymer chemistry theory as can be known, polymer claims polymkeric substance (polymer) again, claims monomer (monomer) the used low molecular raw material of synthetic polymer usually.Be called polyreaction by monomer through the process that chemical reaction forms polymkeric substance.The polycondensation that monomer carried out of bifunctional is the line style polycondensation, if monomer is more than two functional groups in the polycondensation, then can form the polymkeric substance of branching and crosslinking structure, and this polyreaction that can form branching and crosslinking structure is called the three-dimensional polycondensation reaction.
An essential characteristic of three-dimensional polycondensation thing is that reaction proceeds to a certain degree, and the system viscosity increases suddenly, and the polymerization degree increases suddenly, and polymkeric substance is insoluble infusible spawn.This phenomenon is called gelatin phenomenon.The final product of three-dimensional polycondensation is a thermosetting polymer, and this class polycondensation stops before generally being controlled at gelation point, and when the course of processing or film forming, further polycondensation adult form structure, the elder generation that Here it is often says generates " performed polymer ".No matter be the preparation or the crosslinking curing of performed polymer, the prediction of gelation point is extremely important, and the gelation point when still three kinds of silane monomers being carried out polycondensation is made prediction, and is very difficult.
From the molecular structure of polymerizable silane combination liquid and functional group's number as can be known, in molecule of vinyltriacetoxy silane, contain a vinyl (CH
2=CH-), three acetoxyl group (O-CO-CH
3), totally 4 active function groups.In two-molecule of [the silica-based propyl group of trimethoxy first] amine, contain a secondary amine (NH-), six methoxyl group (OCH
3), totally 7 active function groups.In molecule of tetraethoxysilane, contain four oxyethyl group (OCH
3CH
3), totally 4 active function groups.So, the gross activity functional group number of polymerizable silane combination liquid is 15, when being cured letex polymerization, 225 cross-linking set will be arranged, be easy to intermolecular formation inierpeneirating network structure, thereby form the waterborne metal anti-corrosive paint of antiseptic property excellence with Emulgating polymers with the A component.
On Patent Office of the People's Republic of China's network address, with " silane and coating " retrieval, have 305 records respectively; With " water-based anticorrosive paint " retrieval, have 2 records; Use " " waterbornecoating " AND silane " (" water-borne coatings " AND " silane ") retrieval on the net from United States Patent (USP) again, have 81 patents.
But, in these 307 Chinese patents and 81 United States Patent (USP)s, do not have one to relate to silane polymer and the gel defective in water-borne coatings, occurs and solve the technology that silane groups is closed lyogel.
Therefore; because active function groups helps the molecule in the coating to carry out crosslinked; so find polymerizable silane combination liquid with identical gross activity functional group number; the gel defective that solves behind the polymerizable silane also makes full use of the characteristic of polymerizable silane liquid to the metallic surface corrosionproof protection, but is the key of watersoluble metal heavy anticorrosion paint of making the intermolecular inierpeneirating network structure of long-term storage.
Summary of the invention
The object of the invention is exactly to have found the silane with identical active function groups number; overcome the defective of above-mentioned polymerizable silane lyogel by hydrolysis between silane and polycondensation; again and the inierpeneirating network structure between the metal protection barrier Emulgating polymers ingredient of forming by metal color stuffing, resin, water, auxiliary agent in the A component, thus made the metal heavy-duty aqueous industrial coating of antiseptic property excellence.
Forming polymerizable silane combination liquid is by vinyltriacetoxy silane, two-[the silica-based propyl group of triethoxy first] amine (C
18H
43NO
6Si
2) and the tetraethoxysilane formation, in two-molecule of [the silica-based propyl group of triethoxy first] amine, contain a secondary amine (NH-), six oxyethyl group (OCH
3CH
3), totally 7 active function groups.So total functional group number of new polymerizable silane combination liquid still is 15.Polymerizable silane combination liquid is to combine by following weight proportion: two-(triethoxysilylpropyltetrasulfide) amine: vinyltriacetoxy silane: the tetraethoxysilane proportion is 5～8: 1: 5～8, be preferably 7: 1: 7 or 5: 1: 5, best is 6: 1: 6;
Wherein, the weight proportion of the combination liquid that the color stuffing of metal, resin, water, auxiliary agent protection barrier Emulgating polymers and silane polymer and solidifying agent form is 85～95%: 15～5%; be preferably 87%: 13%, 86%: 14%, best is 95%: 5%.
Silane makes up the polymerization of liquid and realizes that with color stuffing, resin, water, the auxiliary agent protection barrier Emulgating polymers of metal intermolecular inierpeneirating network structure program is as follows:
Silane hydrolyzate+silane polycondensation (B the component) → further polycondensation of silane+finally crosslinked (A component and the compounding mutually of B component are specifically used coating)
The polymerizable silane combination liquid that uses in the embodiment of the invention, the staging life after its polyreaction, surpass 8 months, do not produce the gel quav defective.
Dual-component silicane polymeric metal heavy-duty aqueous industrial preparation method for coating of the present invention is very simple, is to choose by the weight ratio of various materials in the two-pack prescription, synthesizes after the mediation respectively.Prepare the A component at first according to a conventional method, soon aqueous epoxy resins or aqueous polyurethane resin, ethanol, deionization pure water stirred 15-20 minute after choosing by weight proportion together, put zinc powder or cloud iron, aluminium powder into be stirred liquid lentamente again, stirred 20 minutes, and added viscosifying agent, dispersion anti-settling agent, defoamer stirring tinning after 10-20 minute again; The preparation of B component is in proportion three kinds of silane and solidifying agent respectively to be stirred after 30 minutes respectively and remix stirs tinning after 30 minutes; So just make dual-component silicane polymeric metal heavy-duty aqueous industrial coating.During use by use proportion will an amount of A, the B component is mixed stirring 20 minutes can brushing, roller coating or spray this coating.
Embodiment
Below four embodiment are specific descriptions that the present invention is carried out, but protection scope of the present invention has more than and is limited to these examples, can be zinc powder, cloud iron or aluminium powder material such as the metal color stuffing in the A component; Resin comprises the formula rate of aqueous epoxy resins and aqueous polyurethane resin or suitable variation A component, as long as guarantee the fundamental property of metallic barrier Emulgating polymers, these change all is the variation of routine, does not constitute limiting the scope of the invention.
In order fully to prove antiseptic property of the present invention, select the acrylic acid aqueous primary coat of famous Norway's epoxy zinc rich primer, the U.S., the aqueous dual-component inorganic phosphate zinc-rich paint and the heavy-duty aqueous coating of highly-chlorinated polyethylene of China to make the antiseptic property Comparative Examples.
Embodiment 1: the weight percent with whole components is prepared:
The A component: 800 order zinc powders 80%, aqueous epoxy resins 8%, ethanol 1%, deionization pure water 4%, viscosifying agent 1% disperses anti-settling agent 0.3%, defoamer 0.3%.
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane ratio according to 6: 1: 6, accounting for part by weight altogether is 2.4%, solidifying agent 3%.
Wherein, viscosifying agent is selected GC-2330 for use, disperses anti-settling agent to select Silok 7000 for use, and solidifying agent is selected 445W60 for use, and defoamer is selected Foamex 840 for use.
Be prepared as follows dual-component silicane polymeric metal heavy-duty aqueous industrial coating: prepare the A component according to a conventional method, soon aqueous epoxy resins or aqueous polyurethane resin, ethanol, deionization pure water stirred 15-20 minute after choosing by weight proportion together, put zinc powder or cloud iron, aluminium powder into be stirred liquid lentamente again, stirred 20 minutes, and added viscosifying agent, dispersion anti-settling agent, defoamer stirring tinning after 10-20 minute again; The preparation of B component is to be in proportion three kinds of silane and solidifying agent respectively to be stirred after 30 minutes respectively and remix stirs tinning after 30 minutes in proportion; So just make dual-component silicane polymeric metal heavy-duty aqueous industrial coating.
Resisting salt fog corrosion detected result of the present invention 500 hours sees Table 1.
Embodiment 2: the weight percent with whole components is prepared:
The A component: 600 order mica-iron oxide pigments, 60%, 600 order zinc powder 20%, aqueous epoxy resins 8%, ethanol 1%, deionization pure water 4.2%, viscosifying agent 0.2% disperses anti-settling agent 0.2%.
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane ratio according to 5: 1: 5, accounting for part by weight altogether is 3%, solidifying agent 3.4%.
Wherein, viscosifying agent is selected GC-2330 for use, disperses anti-settling agent to select H800 for use, and solidifying agent is selected 445W60 for use, and defoamer is selected F111 for use.
Make the present invention according to the method among the embodiment 1, resisting salt fog corrosion detected result of the present invention 500 hours sees Table 1.
Embodiment 3: the weight with whole components is 100%, prepares according to following weight percent:
The A component: 600 order zinc powders, 50%, 800 order aluminium powder 10%, toner 10%, aqueous polyurethane resin 10%, ethanol 2%, deionization pure water 6%, viscosifying agent 0.2% disperses anti-settling agent 0.2%, defoamer 0.2%.The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane ratio according to 7: 1: 7, accounting for part by weight altogether is 4%, solidifying agent 7.4%.
Wherein, viscosifying agent is selected H3256 for use, disperses anti-settling agent to select Dispers 750W for use, and solidifying agent is selected DC-20 for use, and defoamer is selected Foamex 805 for use.
Make the present invention according to the method among the embodiment 1, resisting salt fog corrosion detected result of the present invention 500 hours sees Table 1.
Embodiment 4: the weight with whole components is 100%, prepares according to following weight percent:
The A component: 800 order aluminium powders 50%, toner 20%, aqueous polyurethane resin 8%, ethanol 2%, deionization pure water 5%, viscosifying agent 0.5% disperses anti-settling agent 0.5%, defoamer 0.2%.
B component: by two-(the silica-based propyl group of triethoxy first) amine, vinyl triacetyl oxygen base
Silane and tetraethoxysilane are polymerized according to 8: 1: 8 ratio, and accounting for part by weight altogether is 5%, solidifying agent 8.8%.
Wherein, viscosifying agent is selected RHEOLATE266 for use, disperses anti-settling agent to select 5040 for use, and defoamer is selected A10 for use, and solidifying agent is selected DC-20 for use.
Make the present invention according to the method among the embodiment 1, resisting salt fog corrosion detected result of the present invention 500 hours sees Table 1.
Mandatory declaration be: embodiment of the invention 1A component is by the anticorrosion primary coat of watersoluble metal heavy design, because the zinc powder amount that the color stuffing of metal is selected for use accounts for 80%, reach 12944 pairs of medium district caustically (C4) heavy-duty coating zinc content requirements of ISO, and film-forming resin is an aqueous epoxy resins; Embodiment of the invention 2A component is coated with design by watersoluble metal heavy in anticorrosion, because mica-iron oxide pigment accounts for 60%, the color stuffing total amount of metal also is 80%; The A component of the embodiment of the invention 3 and embodiment 4 is coated with design by the anticorrosion face of watersoluble metal heavy, and because of the color stuffing of metal only accounts for 50%～60%, toner accounts for 10%～20%, and film-forming resin is to do face to be coated with aqueous polyurethane resin commonly used.
From the anti-corrosion of metal performance comparison detected result table 1 of eight kinds coating of China, Norway, three countries of the U.S. li as can be known, on outward appearance protection against corrosion situation, four kinds of embodiment coating of dual-component silicane polymeric metal heavy-duty aqueous industrial coating are higher 1～7 grade than Norway anti-corrosion primer, high 1～9 grade than the U.S., higher 1～8 grade and 1～9 grade than two kinds of domestic water-based anticorrosive paints.This contrast be the dual-component silicane polymeric metal heavy-duty aqueous industrial coating made of the embodiment of the invention the end, in, a complete set of vanish system of face, and the contrast of antiseptic property between famous antifouling paint in the whole world and the domestic metal heavy-duty aqueous coating.Compare from the monolateral average corrosion width of drawn area, the antiseptic property of four kinds of embodiment coating of aqueous silane polymeric metal heavy-duty and domestic aqueous inorganic phosphoric acid salt zinc-rich paint is higher by 200% than the anti-corrosion primer of Norway, than acrylic acid aqueous protective system of the U.S. and domestic water-based highly-chlorinated polyethylene heavy-duty coating high 100 times (, can not assess) and 700% because of three whole corrosions of tender.
Therefore, from the outward appearance rot-resistant effect of coating in essence, the end of the dual-component silicane polymeric metal heavy-duty aqueous industrial coating that inventive embodiments is made, in, the antiseptic property of a complete set of vanish system of face, all be much better than correlated solvent-borne type epoxy zinc-rich paint both domestic and external, water soluble acrylic acid protective system, aqueous inorganic phosphoric acid salt zinc-rich paint and water-based highly-chlorinated polyethylene heavy-duty coating.
The mechanics of the coating that the embodiment of the invention is made and famous Norway's epoxy zinc-rich anti-corrosion primer and chemical property, VOC value detected result are as shown in table 2, and be too poor because of the U.S. and domestic water-based anticorrosive paint corresponding detection result, no longer states.
Known to table 2 detected result, the shock-resistance of filming, snappiness, sticking power, acid resistance, the resistance to salt water of the coating of embodiment of the invention manufacturing and the anti-corrosion primer of Norway are identical, but still quite a lot of on petrol-resistance and resistance toheat.
Therefore, because silane polymer combination liquid of the present invention, have the gel defective that overcomes polymerizable silane and keep the characteristic of silane anti-corrosion of metal, it is crosslinked and changed the performance and the microstructure of their interpenetrating net polymer to allow Emulgating polymers intermolecular carry out horizontal mistake, on the antiseptic property of coating, surpass other four classes protective system significantly, reached the antiseptic property requirement of metal heavy anticorrosion paint.Especially the Si-O-Si molecular structure that dual-component silicane polymeric metal heavy-duty aqueous industrial coating of the present invention has has been obtained basic breakthrough in the intermolecular combination of coating.
The comparison and detection of embodiment of the invention coating and domestic and international four class protective systems is to be carried out by the Chinese one-level coating feeler mechanism with DAC.MRA, CNAS, DILAC, MAC authentication.
And, can see that from table 2 detected result one liter of VOC value that has of dual-component silicane polymeric metal heavy-duty aqueous industrial coating of the present invention has only 26.2 grams.This VOC value just be lower than developed countries such as European Union, the U.S., Japan since the qualification coating of carrying out in 2007 the VOC value 1/3rd, also just proving coating of the present invention is environmentally friendly coating.
Table 1 coating salt spray resistance detects data
The mechanics of table 2 coating and anti-corrosion primer and chemical property and VOC value detect
Claims (4)
1. dual-component silicane polymeric metal heavy-duty aqueous industrial coating, form by following components in weight percentage:
The A component: 800 order zinc powders 80%, aqueous epoxy resins 8%, ethanol 1%, deionization pure water 4%, viscosifying agent 1% disperses anti-settling agent 0.3%, defoamer 0.3%;
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane weight ratio according to 6: 1: 6, accounting for part by weight altogether is 2.4%, solidifying agent 3%.
2. dual-component silicane polymeric metal heavy-duty aqueous industrial coating, form by following components in weight percentage:
The A component: 600 order mica-iron oxide pigments, 60%, 600 order zinc powder 20%, aqueous epoxy resins 8%, ethanol 1%, deionization pure water 4.2%, viscosifying agent 0.2% disperses anti-settling agent 0.2%;
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane weight ratio according to 5: 1: 5, accounting for part by weight altogether is 3%, solidifying agent 3.4%.
3. dual-component silicane polymeric metal heavy-duty aqueous industrial coating, form by following components in weight percentage:
The A component: 600 order zinc powders, 50%, 800 order aluminium powder 10%, toner 10%, waterborne polyurethane resin 10%, ethanol 2%, deionization pure water 6%, viscosifying agent 0.2% disperses anti-settling agent 0.2%, defoamer 0.2%;
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane weight ratio according to 7: 1: 7, accounting for part by weight altogether is 4%, solidifying agent 7.4%.
4. dual-component silicane polymeric metal heavy-duty aqueous industrial coating, form by following components in weight percentage:
The A component: 800 order aluminium powders 50%, toner 20%, waterborne polyurethane resin 8%, ethanol 2%, deionization pure water 5%, viscosifying agent 0.5% disperses anti-settling agent 0.5%, defoamer 0.2%;
The B component: be polymerized by two-(the silica-based propyl group of triethoxy first) amine, vinyltriacetoxy silane and the tetraethoxysilane weight ratio according to 8: 1: 8, accounting for part by weight altogether is 5%, solidifying agent 8.8%.
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| CN101781462B (en) * | 2010-02-11 | 2012-07-04 | 大连顾德防腐工程有限公司 | Hybrid polymer structural layer and preparation and use methods thereof |
| CN102942852A (en) * | 2012-12-13 | 2013-02-27 | 青岛汉河药业有限公司 | Corrosion prevention scheme of metal surface |
| 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 |
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