CN103756377A - Modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as anti-settling dispersant - Google Patents
Modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as anti-settling dispersant Download PDFInfo
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Abstract
The invention relates to an anticorrosive coating, and particularly relates to a modified silicate waterborne zinc-rich anticorrosive coating employing organic montmorillonite as an anti-settling dispersant. The modified silicate waterborne zinc-rich anticorrosive coating is prepared from components A and B, wherein the component A is prepared from 10-60% of flake zinc powder; the component B is prepared from 25-85% of silicone acrylic emulsion-modified potassium silicate solution, 0.1-5% of ricinate, 0.1-5% of organic montmorillonite, 0.1-5% of defoamer, and 0.01-2% of thickener, and the percent is weight percent. The modified silicate waterborne zinc-rich anticorrosive coating has the advantages that the dosage of zinc powder can be greatly reduced, and the cost of the coating is reduced. The water resistance of the coating is improved by the organic emulsion-modified potassium silicate solution; excellent painting hardness of the coating is achieved, the barrier property of the coating is improved, and meanwhile, the anticorrosive coating is almost zero in volatile organic compound (VOC) release property, and free of environmental pollution.
Description
Technical field
The present invention relates to a kind of protective system, relate in particular to the modified Portland waterborne zinc-rich anti-corrosive paint of the anti-heavy dispersion agent of a kind of organo montmorillonite work.
Background technology
Metallic corrosion meeting brings about great losses to economy, and the iron and steel output of China, up to hundred million tons, wherein has 30% because corrosion has been wasted at present.According to statistics, the annual financial loss causing because of corrosion reaches 7,000 hundred million dollars, has exceeded the natural disasteies such as earthquake, floods, therefore extremely urgent to the protection of metallic corrosion.The protection of metallic corrosion mainly realizes by protective system.Application techniques is simple, easy to operate, cheap, and protection timeliness length waits many merits and is widely used.Traditional solvent-borne type protective system can discharge a large amount of VOC, the living environment to people and healthyly have a potential threat.From the angle of energy-conserving and environment-protective, water-based anticorrosive paint has become the focus of falling over each other research.
Aqueous inorganic zinc-enriched coating is with characteristics such as its excellent feature of environmental protection, security, thermotolerance, weathering resistance, wear resistance and radiation resistances, be used to the long-effective corrosion of various steel construction pieces, these steel construction pieces comprise the steel and iron member of the boats and ships that are exposed under marine atmosphere, high temperature and various environment, freight container, harbour various kinds of equipment, heavy construction, be particularly suitable for storage tank, oil tanker, solvent cabin inwall, heat exchanger inside and outside wall, can be used for simultaneously all kinds of under water, underground all kinds of pipe layings, chemical pipeline etc.
Although aqueous inorganic zinc-enriched coating has lot of advantages, it also has some shortcomings that cannot overcome.First in inorganic zinc coating, the addition of zinc powder is large, and in international standard ISO12944 regulation zinc-rich paint non-volatile content, zinc content is not less than 80%.But if zinc content is too high in coating, the more crisp impact resistance of coating is not good, coating and basal body binding force are not high easy to crack, can produce the holiday of be full of cracks etc.These factors have affected Corrosion Protection and the comprehensive mechanical property of inorganic zinc coating, have limited the widespread use of this coating.China Patent Publication No. CN1840586A discloses a kind of aqueous inorganic silicate zinc-rich primer, its take zinc powder, inorganic silicate as main raw material and other auxiliary agents make, comprise zinc powder 60% ~ 80%, base-material 20% ~ 40%.This method zinc powder consumption is large, and cost is high, and every comprehensive mechanical property all has room for promotion.
In addition zinc powder is directly used in aqueous inorganic zinc-enriched coating, has wetting dispersion difficulty, easily reunites, precipitates, and causes zinc-base paint coatings glossiness inhomogeneous, surface irregularity, and the problems such as erosion resistance reduction, await further solution.
Summary of the invention
In order to solve the problems of the technologies described above the modified Portland waterborne zinc-rich anti-corrosive paint that the invention provides the anti-heavy dispersion agent of a kind of organo montmorillonite work, object is to improve coating dispersiveness, fineness, coating gloss, makes coating surface more smooth.
The modified Portland waterborne zinc-rich anti-corrosive paint of making anti-heavy dispersion agent for reaching above-mentioned purpose organo montmorillonite of the present invention, is comprised of two kinds of components of first, second; Wherein first component: flake zinc powder 10% ~ 60%; Component B: the potassium silicate solution 25% ~ 85% after organosilicon crylic acid latex modification, Ricinate 0.1% ~ 5%, organo montmorillonite 0.1% ~ 5%, defoamer 0.1% ~ 5%, thickening material 0.01% ~ 2%; Above-mentioned per-cent is weight percentage.
First component: flake zinc powder 24.3%; Component B: the potassium silicate solution 73% after organosilicon crylic acid latex modification, Ricinate 0.3%, organo montmorillonite 0.3%, defoamer 2%, thickening material 0.1%.
Described flake zinc powder is super-fine zinc dust, effective zinc content >=96% of zinc powder, and fineness is 500 orders.
Silicon potassium mol ratio SiO in second component
2: K
2o is 2 ~ 6.5.
Described Ricinate is BYK-190, Disponer w-920, Disponer w-922 or Disponer w-511.
Described organo montmorillonite be organo montmorillonite I.44P, organo montmorillonite I.31P, organo montmorillonite I.24TL, organo montmorillonite I.30P or organo montmorillonite I.28E.
Described defoamer is tributyl phosphate, Agitan315 or Agitan E255.
Described thickening material is sodium polyacrylate, Natvosol or methyl hydroxyethylcellulose.
Organo montmorillonite is made the preparation technology of the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent,
1) by recipe ratio, take flake zinc powder, obtain first component;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification in second component: take silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, mixing solutions stirring reaction 10 minutes, obtains potassium silicate solution, take potassium silicate solution in thermostatic container, when 30 ℃ of constant temperature, will add while stirring organosilicon crylic acid latex, electric stirring, after 40 minutes, obtains modified base material;
3) by recipe ratio, take the potassium silicate solution after organosilicon crylic acid latex modification, drop in material cylinder, add wetting dispersing agent, organo montmorillonite, defoamer, thickening material, disperseing stirs is prepared into second component;
4) while using, first, second component is mixed, and stirs 30min, obtains product.
Advantageous effect of the present invention:
The present invention has the following advantages compared to existing technology:
1, adopt flake zinc powder to replace spherical zinc powder, while reaching identical corrosion resistance nature, can greatly reduce the consumption of zinc powder, reduce coating cost.
2, organic emulsion modification potassium silicate solution, improves water-resistant coating, gives the excellent hardness of smearing of coating, has improved the barrier propterty of coating, has almost nil VOC release characteristics, non-environmental-pollution simultaneously.
3, anti-heavy dispersion agent organo montmorillonite and being used in conjunction with of other auxiliary agents are given the viscosity that coating is higher, overcome the disadvantage that low-viscosity exists, and can meet efficient antiseptic property and higher physical property requirements, coating dispersiveness has significant lifting, fineness also improves significantly, coating gloss is more even, surface more smooth.Can obviously improve zinc powder and easily reunite, precipitate, the phenomenons such as the easy layering of coating, bad mechanical property.
4, solidify after coating there is good sticking power, shock-resistance, snappiness, good combination property, has long-effective corrosion effect.
5, nontoxic, the production safety of this product, construction safety, storing and transporting security, healthy without impact on workmen.
Embodiment
Illustrate the present invention below, these embodiment are only for the present invention is described, but do not limit the present invention in any way.
Embodiment 1:
1) by recipe ratio, take flake zinc powder 17.4g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 96% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 11.27:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 5.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 52g, drop in material cylinder, add wetting dispersing agent (Disponer w-922) 0.2g, anti-heavy dispersion agent OMMT(I.24TL) 0.18g, defoamer tributyl phosphate 1.4g, thickening material sodium polyacrylate 0.06g, disperseing stirs is prepared into second component;
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Comparative example 1 is for preparing by China Patent Publication No. CN1390895A:
(1) tetraethoxy 100Kg, dehydrated alcohol 2.1Kg mixes, and stirs, and carries out alcoholysis reaction
(2), with 2.5Kg pure water dilution 1Kg, it is 2 ~ 3 standing to room temperature dripping and making pH, adds organic silicon amine 1.5Kg, is uniformly mixed.
(3) add zinc powder 18.5Kg, be uniformly mixed, obtain priming paint.
The comparison of time of drying of table 1: embodiment 1 and comparative example 1 product, viscosity, fineness, sticking power level
Embodiment 2:
1) by recipe ratio, take zinc powder 19.7g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 96% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 11.27:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 5.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 59g, drop in material cylinder, add wetting dispersing agent (Disponer w-922) 0.25g, anti-heavy dispersion agent OMMT(I.30P) 0.2g, defoamer tributyl phosphate 1.6g, thickening material sodium polyacrylate 0.065g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Comparative example 2 is for preparing by China Patent Publication No. CN1840586A
By 30.6% silicon sol, 13.5% water and 0.2% wilkinite touch agent and are mixed with base-material and grant dry steel and immediately gained base-material is mixed with 48.2% zinc powder before, obtain priming paint.Testing its effect draws:
The comparison of time of drying of table 2: embodiment 2 and comparative example 2 products, viscosity, fineness, sticking power level
Embodiment 3:
1) by recipe ratio, take zinc powder 20g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 97% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 4.12:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 2,
3) by recipe ratio, take emulsion modified potassium silicate solution 170g, drop in material cylinder, add wetting dispersing agent BYK-190 0.2g, anti-heavy dispersion agent organo montmorillonite (I.44P) 0.2g, defoamer Agitan315 5.6g, thickening material Natvosol 4g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Embodiment 4:
1) by recipe ratio, take zinc powder 17.5g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 96% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 11.27:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 5.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 52.4g, drop in material cylinder, add wetting dispersing agent Disponer w-922 0.22g, anti-heavy dispersion agent OMMT(I.24TL) 0.22g, defoamer tributyl phosphate 1.4g, thickening material sodium polyacrylate 0.058g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Embodiment 5:
1) by recipe ratio, take zinc powder 21.2g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 98% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 11.27:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 5.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 63.5g, drop in material cylinder, add wetting dispersing agent (Disponer w-920) 0.26g, anti-heavy dispersion agent OMMT(I.30P) 0.26g, defoamer (Agitan E255) 1.73g, thickening material methyl hydroxyethylcellulose 0.07g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Embodiment 6:
1) by recipe ratio, take zinc powder 60g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 96% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 13.40:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 6.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 25g, drop in material cylinder, add wetting dispersing agent (Disponer w-511) 5g, anti-heavy dispersion agent OMMT(I.31P) 5g, defoamer (Agitan E255) 4.99g, thickening material Natvosol 0.01g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
Embodiment 7:
1) by recipe ratio, take zinc powder 50g, obtain first component, flake zinc powder is super-fine zinc dust, the effective zinc content 96% of zinc powder, and fineness is 500 orders;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification: taking mass ratio is 11.27:1:7.63 silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, about mixing solutions stirring reaction 10 minutes, obtain potassium silicate solution, take potassium silicate solution in thermostatic container, at 30 ℃ of constant temperature, the organosilicon crylic acid latex of certainty ratio will be added while stirring, after electric stirring 40 minutes, obtain modified base material, wherein control organosilicon crylic acid latex massfraction and be respectively 20%, silicon potassium mol ratio SiO
2: K
2o is 5.5,
3) by recipe ratio, take emulsion modified potassium silicate solution 40g, drop in material cylinder, add wetting dispersing agent (Disponer w-511) 4.99g, anti-heavy dispersion agent OMMT(I.28E) 5g, defoamer (Agitan E255) 5g, thickening material methyl hydroxyethylcellulose 0.01g, disperseing stirs is prepared into second component.
4) while using, first, second component is mixed, and stirs 30min, obtains this product.
The performance of time of drying of table 3: embodiment 3 ~ 7 products, viscosity, fineness, sticking power level
Other performance test results are as follows:
Painting color: zinc gray
Shock-resistance: >=50 GB/T1732-1993
Hardness of paint film: 6H GB/T6739-2006
Bending snappiness: 2 grades of GB/T6742-2007.
The present invention is mainly for mainly making color stuffing with flake zinc powder in prior art products obtained therefrom; zinc powder consumption is large; coating performance declines; and the present invention uses flake zinc powder to substitute spherical zinc powder; scale base watt shape face contacts with point with the point that face bridging arrangement is better than ball zinc-base structure; flake zinc powder strengthens current lead-through greatly, and can, when reducing flake zinc powder content, obtain excellent electro-chemical protection performance.But there is wetting dispersion difficulty, easily reunite, precipitate in flake zinc powder, causes the layering of zinc-base coating, and coating gloss is inhomogeneous, surface irregularity, the problems such as erosion resistance reduction.And the problem existing as anti-heavy dispersion agent solution flake zinc powder as base-material with using organo montmorillonite with the potassium silicate solution after organosilicon crylic acid latex modification.By the potassium silicate solution after the modification of use organosilicon crylic acid latex, as base-material, base-material has better moisture dispersibility to flake zinc powder, and the cohesive force of coating, water tolerance, acid resistance, high thermal resistance, galvanic protection effect all obviously improve.In addition, using organo montmorillonite as anti-heavy dispersion agent, can make coating there is result of prevention, obviously promote the fineness of coating, reduce the rate of descent of flake zinc powder simultaneously, effectively improve the brushing property such as thixotropy, rheological of coating, strengthen preservative property and the water tolerance of film, can also save cost, have using value.
The present invention adopts water-soluble silicate as main filmogen, and wherein the ferro element of Si-O key and solids component (zinc powder), steel surface etc. generates silicate polymer.Meanwhile, absorb airborne moisture and carbonic acid gas, continue reaction, mainly generate insoluble film and netted silicic acid zinc complex, thereby aggregate into huge network, making has very high bonding force between coating and matrix, has played the effect of protection iron and steel.
In addition, inorganic coating is after organosilicon crylic acid latex modification, organic molecule chain-Si-O-in organosilicon crylic acid latex is distributed in zinc silicate network gap, hydrophilic radical in meeting curtain coating, in silicon sol, a large amount of Si-OH dehydration becomes firmly Si-O-Si key, and then improves water-resistant coating, gives the excellent hardness of smearing of coating, improve the barrier propterty of coating, realized the complementation in consistency and the performance that organic phase and inorganic phase are good.Organic molecule and inorganic cohesive material can form and intersect the network structure of IPN, hole between the inorganic coating that organic composition is effectively filled, makes coating finer and close, has delayed the corrosion of corrosive medium to coated substrate, therefore, the coating acid-resistant corrosion after improvement strengthens.
In coating, increased the anti-heavy organically-modified polynite of dispersion agent, polynite has unique, natural nanostructure, lamella yardstick is nano level, through organically-modified organo montmorillonite, in organic medium, show swelling property, polymolecularity, thixotropy, the features such as resistance to settling, be used in conjunction with in this product and can give the dispersiveness that coating is good with dispersion agent, thereby overcome and because flake zinc powder is wetting, disperseed difficulty, easily reunite, precipitation, cause the layering of zinc-base coating, coating gloss is inhomogeneous, the disadvantages such as surface irregularity, obviously promoted the fineness of coating, improved the mechanical property of coating.
Claims (9)
1. organo montmorillonite is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that being comprised of two kinds of components of first, second; Wherein first component: flake zinc powder 10% ~ 60%; Component B: the potassium silicate solution 25% ~ 85% after organosilicon crylic acid latex modification, Ricinate 0.1% ~ 5%, organo montmorillonite 0.1% ~ 5%, defoamer 0.1% ~ 5%, thickening material 0.01% ~ 2%; Above-mentioned per-cent is weight percentage.
2. organo montmorillonite according to claim 1 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that first component: flake zinc powder 24.3%; Component B: the potassium silicate solution 73% after organosilicon crylic acid latex modification, Ricinate 0.3%, organo montmorillonite 0.3%, defoamer 2%, thickening material 0.1%.
3. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that described flake zinc powder is super-fine zinc dust, effective zinc content >=96% of zinc powder, and fineness is 500 orders.
4. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that silicon potassium mol ratio SiO in second component
2: K
2o is 2 ~ 6.5.
5. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that described Ricinate is BYK-190, Disponer w-920, Disponer w-922 or Disponer w-511.
6. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that described organo montmorillonite be organo montmorillonite I.44P, organo montmorillonite I.31P, organo montmorillonite I.24TL, organo montmorillonite I.30P or organo montmorillonite I.28E.
7. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that described defoamer is tributyl phosphate, Agitan315 or Agitan E255.
8. organo montmorillonite according to claim 1 and 2 is made the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that described thickening material is sodium polyacrylate, Natvosol or methyl hydroxyethylcellulose.
9. organo montmorillonite is made the preparation technology of the modified Portland waterborne zinc-rich anti-corrosive paint of anti-heavy dispersion agent, it is characterized in that:
1) by recipe ratio, take flake zinc powder, obtain first component;
2) preparation of the potassium silicate solution after organosilicon crylic acid latex modification in second component: take silicon sol, potassium hydroxide and water, silicon sol is added in the thermostatic container with electric mixer, at 70 ℃ of constant temperature, while stirring potassium hydroxide and water are slowly added in reaction vessel, mixing solutions stirring reaction 10 minutes, obtains potassium silicate solution, take potassium silicate solution in thermostatic container, when 30 ℃ of constant temperature, will add while stirring organosilicon crylic acid latex, electric stirring, after 40 minutes, obtains modified base material;
3) by recipe ratio, take the potassium silicate solution after organosilicon crylic acid latex modification, drop in material cylinder, add wetting dispersing agent, organo montmorillonite, defoamer, thickening material, disperseing stirs is prepared into second component;
4) while using, first, second component is mixed, and stirs 30min, obtains product.
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| CN110526253A (en) * | 2019-09-12 | 2019-12-03 | 浙江工业大学之江学院 | A kind of preparation method of the organic magnesium smelting of hydrophily |
| CN112225493A (en) * | 2020-10-15 | 2021-01-15 | 三棵树(上海)新材料研究有限公司 | Super-weather-resistant infrared reflection heat insulation inorganic coating and preparation method thereof |
| CN112480725A (en) * | 2020-12-04 | 2021-03-12 | 广东海畅新材料有限公司 | Inorganic antibacterial building coating and preparation method thereof |
| CN112592611A (en) * | 2021-03-02 | 2021-04-02 | 广东合胜实业股份有限公司 | Graphene-based modified antibacterial and antiviral coating and preparation method thereof |
| CN113801503A (en) * | 2021-09-29 | 2021-12-17 | 上海宜瓷龙新材料股份有限公司 | Finishing paint with slow-release deodorization function and preparation method thereof |
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