CN102976705A - Aqueous inorganic nano-ceramic coating binder, coating containing binder, and preparation method of binder - Google Patents
Aqueous inorganic nano-ceramic coating binder, coating containing binder, and preparation method of binder Download PDFInfo
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- CN102976705A CN102976705A CN2012104341186A CN201210434118A CN102976705A CN 102976705 A CN102976705 A CN 102976705A CN 2012104341186 A CN2012104341186 A CN 2012104341186A CN 201210434118 A CN201210434118 A CN 201210434118A CN 102976705 A CN102976705 A CN 102976705A
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Abstract
An aqueous inorganic nano-ceramic coating binder comprises 30-41wt% of potassium silicate, 25-35wt% of a silica sol, 2-4wt% of an MMT montmorillonite gel, 1-2wt% of a silane coupling agent, 15-25wt% of an aqueous solution of potassium hydroxide and 12-17wt% of water, wherein the molar ratio of SiO2:K2O is 5.7:1. A coating produced through adopting the binder has the advantages of environmental protection, no release of formaldehyde, benzene or other harmful gases, stable performances, high quality, and wide use, and solves the problems comprising large brittleness, bad water resistance, difficult construction, expensive import material, bad high temperature resistance and the like of inorganic zinc-rich coatings. The invention simultaneously discloses a preparation method of the aqueous inorganic nano-ceramic coating binder, and the coating containing the aqueous inorganic nano-ceramic coating binder.
Description
Technical field
The present invention relates to a kind of binding agent of aqueous inorganic ceramic coating, the invention still further relates to the coating that contains this binding agent, and the preparation method of this aqueous inorganic ceramic coating binding agent.Binding agent of the present invention can be for the production of in the coating such as building coating, terrace paint, high temperature resistant heavy anti-corrosion paint, heat-insulation and heat-preservation frie retardant coating.
Background technology
It is a lot of to use at present inorganic silicate to prepare the report of coating, inorganic zinc-rich protective system particularly, and the low mol ratio metso that it adopts, it is the silicate of 4.8:1 that the silicon-dioxide of employing and potassium oxide mol ratio are also arranged.The silicate bond that United States Patent (USP) 4162169 adopts, in this patent, narrated under superfast stirring, in silicate, add silica hydrogel solution, final formation silicon-dioxide and potassium oxide mol ratio are the clear solution of 5.3:1, use in the reaction silica dioxide gel be powder, 35% the aqueous solution need be made into before using, protective system can be made with this kind binding agent.The problem that this patent exists is that package stability is poor, and is poor by low, thick the being coated with property of protective system viscosity that this kind binding agent is made, strict to the surface treatment of metal base.In state-owned scholar report to have narrated and adopt low stirring velocity, prepare the silicate bond of high molar ratio with silicon sol, added stablizer and organic polymer emulsion modification, theoretically, the binding agent that this kind method forms is improved in mol ratio, and storage life prolongs.The problem of the existence of this patent is that this is disadvantageous to preservative effect because high mol ratio causes the fragility of coating of its preparation larger, and the closure of filming is not enough.
Summary of the invention
The first purpose of the present invention is to overcome the weak point of above-mentioned existing background technology, and a kind of aqueous inorganic ceramic coating binding agent is provided;
The second purpose of the present invention is to provide a kind of preparation method who contains this aqueous inorganic ceramic coating binding agent;
The 3rd purpose of the present invention is to provide the preparation method of this aqueous inorganic ceramic coating binding agent.
The present invention has overcome that the package stability of existing inorganic paint is poor, fragility is large, poor water resistance, high temperature resistant poor, the defective such as application conditions harsh, closure is poor.
The first purpose of the present invention reaches by following measure: the binding agent of aqueous inorganic ceramic coating, it is characterized in that it is comprised of following component,
Wherein: SiO
2: K
2The mol ratio of O is 5.7:1.
In technique scheme, described potassium silicate solid content is 33%.
In technique scheme, described silicon sol is with SiO
2Be the dispersion of fundamental unit in water, SiO
2Solid content be 30%, SiO
2The particle size range of particle is at 5nm-40nm.
In technique scheme, described MMT polynite gel is that concentration is 8% the polynite aqueous solution, the illiteracy soap clay of purified modification.
In technique scheme, described potassium hydroxide aqueous solution is that concentration is 20% the aqueous solution.
The second purpose of the present invention reaches by following measure: prepare the method for aqueous inorganic ceramic coating binding agent described in above-mentioned arbitrary claim, it is characterized in that it is comprised of following steps successively:
(1), potassium silicate solution is slowly poured in the container by above-mentioned weight percent, begin to heat up;
(2), adjust rotating speed with intelligent dispersion machine controller, adjust rotating speed to 1000 r/min-1200 r/min, the limit is stirred the companion limit and is heated up, and stirs 25mim-30min;
(3), when the potassium silicate solution temperature rises to 35 ℃-40 ℃, by above-mentioned weight percent silicon sol solution is slowly poured in the container, adjust rotating speed with the dispersion machine controller, adjust rotating speed to 1200 r/min-1500 r/min, stir 25mim-30min;
(4), dispersing and dissolving evenly after, by above-mentioned weight percent MMT polynite gel is slowly poured in the container, adjusting rotating speed with the dispersion machine controller is 2500 r/min-3000 r/min, is incubated 20min-30min;
(5), be uniformly dispersed after, when solution temperature rises to 45 ℃-60 ℃, by above-mentioned weight percent silane coupling agent is slowly poured in the container, adjust rotating speed to 1500 r/min-2000 r/min with the dispersion machine controller, stir 25min-30min, miscellany is fully mixed;
(6), be uniformly dispersed after, by above-mentioned weight percent stablizer is slowly poured in the container, adjust rotating speed to 1500r/min-2000r/min with the dispersion machine controller, stir 30min-40min;
(7), by above-mentioned weight percent water is slowly added in the container, after being uniformly dispersed, 20min-40min is left standstill in insulation;
(8), the liquid of final formation is contained in containers for future use after with 120-300 purpose strainer filtering.
The 3rd purpose of the present invention reaches by following measure: contain the coating of above-mentioned aqueous inorganic ceramic coating binding agent, it is characterized in that it comprises: A. deionized water, B. color stuffing, C. aqueous inorganic ceramic coating binding agent, D. auxiliary agent; The consumption of described A is 18-20%, and the consumption of B is 25-32%, and the consumption of C is 45-50%, and the consumption of D is 3-5%.
The coating of aquosity inorganic nano ceramic coating binding agent the preparation method be:
(1) deionized water is poured in the container by above-mentioned weight percent, added the dispersion agent of some amount, adjust rotating speed to 600 r/min-800 r/min with intelligent dispersion machine controller, disperseed 5-10 minute;
(2) color stuffing is poured in the container by above-mentioned weight percent, adjusted rotating speed to 800 r/min-1200 r/min, stir while adding, disperseed 15-30 minute, make slurry;
(3) with the slurry made respectively by shredder grind, the sand mill sand milling, meet the requirements of fineness;
(4) adjust rotating speed to 600 r/min-800 r/min, aqueous inorganic ceramic coating binding agent is poured in the container by above-mentioned weight percent mixed with slurry, stir while adding, disperseed 15-30 minute;
(5) keep rotating speed to 600 r/min-800 r/min, at last auxiliary agent is stirred while adding by above-mentioned weight percent, disperseed 15-30 minute, namely make coating;
The present invention has following advantage: the invention provides a kind of binding agent of producing building coating, terrace paint, high temperature resistant heavy anti-corrosion paint, heat-insulation and heat-preservation frie retardant coating, belong to environmental protection, formaldehydeless, benzene and other obnoxious flavour release, stable performance, coating that quality is high with the coating of binding agent production of the present invention, the problem of the aspects such as of many uses, the fragility that has solved inorganic zinc coating is large, poor water resistance, difficult construction, imported materials and items are expensive, high temperature resistant difference.
Building coating, terrace paint, high temperature resistant heavy anti-corrosion paint, heat-insulation and heat-preservation frie retardant coating and the structural ceramics coating of using nano aqueous ceramic coating binding agent of the present invention to produce, can form well behaved paint film, good with the sticking power of base material, have water tolerance preferably, weathering resistance, high temperature resistant, wear resistance, the high excellent performance such as self-cleaning, can be widely used in the surfacecti proteon in the fields such as building materials, military project, vehicle, boats and ships, bridge, pipeline.
The all materials of the present invention all are aqueous substances, do not contain the pollution toxic ingredient, and technique is controlled easily, and the stability of storage improves.Because having added MMT polynite gel carries out chemical graft, makes the particle diameter of binder material reach Nano grade, have excellent physics and chemistry performance, can be applied in the making of various coating, be with a wide range of applications.Adhesive solution of the present invention can keep low-viscosity, and high hydroxyl content when making zinc rich primer, can hold more zinc powder, can prepare the environmental-friendly aqueous inorganic nano level ceramic coating of cold spraying, Air drying, film formation, excellent performance
The technical indicator of table 1. nano aqueous ceramic coating of the present invention binding agent
| Project | Character |
| Outward appearance | Colourless, tasteless, transparent liquid |
| Density (g/ ㎝ 3） | 1.201 |
| Viscosity (cps) | 15-17 |
| Molecular-weight average | 300-600 |
| PH value (mgKOH/g) | 11-12.5 |
| Storage period (normal temperature) | 2 years |
| Thinner | Water |
| SiO 2：K 2O | 5.7：1 |
Embodiment
Describe performance of the present invention in detail below in conjunction with embodiment, but they do not consist of limitation of the invention, only for example.Simultaneously by illustrating that advantage of the present invention will become more clear and easily understanding.
The binding agent of aqueous inorganic ceramic coating of the present invention, wherein SiO
2: K
2The mol ratio of O is 5.7:1.It is comprised of following component,
Wherein: described potassium silicate solid content is 33%, and viscosity is moderate, liquid-transparent.
Described silicon sol is with SiO
2Be the dispersion of fundamental unit in water, SiO
2Solid content be 30%, SiO
2The particle size range of particle is at 5mm-40nm.
Described MMT polynite gel is that concentration is 8% the polynite aqueous solution, the illiteracy soap clay of purified modification, soluble in water have good adsorptivity, ion exchangeable, non-migrating viscosity, can play to paint film the effect of stratiform sealing, the percentage of open area that can reduce to seal.
Described potassium hydroxide aqueous solution is that concentration is 20% the aqueous solution, for binding agent synthetic provides a kind of alkaline environment, keeps stability of system, the storage period that also can improve binding agent simultaneously, prolongs its work-ing life.
Prepare the method for described aqueous inorganic ceramic coating binding agent, it is comprised of following steps successively:
(1), potassium silicate solution is slowly poured in the container by above-mentioned weight percent, begin to heat up;
(2), adjust rotating speed with intelligent dispersion machine controller, adjust rotating speed to 1000 r/min-1200 r/min, the limit is stirred the companion limit and is heated up, and stirs 25mim-30min;
(3), when the potassium silicate solution temperature rises to 35 ℃-40 ℃, by above-mentioned weight percent silicon sol solution is slowly poured in the container, adjust rotating speed with the dispersion machine controller, adjust rotating speed to 1200 r/min-1500 r/min, stir 25mim-30min;
(4), dispersing and dissolving evenly after, by above-mentioned weight percent MMT polynite gel is slowly poured in the container, adjusting rotating speed with the dispersion machine controller is 2500 r/min-3000 r/min, is incubated 20min-30min;
(5), be uniformly dispersed after, when solution temperature rises to 45 ℃-60 ℃, by above-mentioned weight percent silane coupling agent is slowly poured in the container, adjust rotating speed to 1500 r/min-2000 r/min with the dispersion machine controller, stir 25min-30min, miscellany is fully mixed;
(6), be uniformly dispersed after, by above-mentioned weight percent stablizer is slowly poured in the container, adjust rotating speed to 1500r/min-2000r/min with the dispersion machine controller, stir 30min-40min;
(7), by above-mentioned weight percent water is slowly added in the container, after being uniformly dispersed, 20min-40min is left standstill in insulation;
(8), the liquid of final formation is contained in containers for future use after with 120-300 purpose strainer filtering.
The coating that contains described aqueous inorganic ceramic coating binding agent is characterized in that it comprises: A. deionized water, B. color stuffing, C. aqueous inorganic ceramic coating binding agent, D. auxiliary agent; The consumption of described A is 18-20%, and the consumption of B is 25-32%, and the consumption of C is 45-50%, and the consumption of D is 3-5%.
Embodiment 1
Adopt the 1# prescription in the table 2, using solid content is 250 parts of about 33% potassium silicates, solid content is 450 parts of about 30% silicon sol, concentration is 25 parts of 8% the inorganic polynite gels of MMT, 8 parts of silane coupling agents, concentration is 40 parts of 20% potassium hydroxide aqueous solutions (stablizer), and 227 parts in water is made the potassium silicate resin of high silicon ratio by above-mentioned production stage and requirement.Found that at physicochemical property comprehensive raising has been arranged than common potassium silicate resin as paint binder, but less stable, water tolerance is relatively poor, and is not ideal enough with the intermiscibility of other material.
Prepare the method for described aqueous inorganic ceramic coating binding agent, it is comprised of following steps successively:
(1), potassium silicate solution is slowly poured in the container by above-mentioned weight percent, begin to heat up;
(2), adjust rotating speed with intelligent dispersion machine controller, adjust rotating speed to 1000 r/min-1200 r/min, the limit is stirred the companion limit and is heated up, and stirs 25mim-30min;
(3), when the potassium silicate solution temperature rises to 35 ℃-40 ℃, by above-mentioned weight percent silicon sol solution is slowly poured in the container, adjust rotating speed with the dispersion machine controller, adjust rotating speed to 1200 r/min-1500 r/min, stir 25mim-30min;
(4), dispersing and dissolving evenly after, by above-mentioned weight percent MMT polynite gel is slowly poured in the container, adjusting rotating speed with the dispersion machine controller is 2500 r/min-3000 r/min, is incubated 20min-30min;
(5), be uniformly dispersed after, when solution temperature rises to 45 ℃-60 ℃, by above-mentioned weight percent silane coupling agent is slowly poured in the container, adjust rotating speed to 1500 r/min-2000 r/min with the dispersion machine controller, stir 25min-30min, miscellany is fully mixed;
(6), be uniformly dispersed after, by above-mentioned weight percent stablizer is slowly poured in the container, adjust rotating speed to 1500r/min-2000r/min with the dispersion machine controller, stir 30min-40min;
(7), by above-mentioned weight percent water is slowly added in the container, after being uniformly dispersed, 20min-40min is left standstill in insulation;
(8), the liquid of final formation is contained in containers for future use after with 120-300 purpose strainer filtering.
The coating that contains described aqueous inorganic ceramic coating binding agent is characterized in that it comprises: A. deionized water, B. color stuffing, C. aqueous inorganic ceramic coating binding agent, D. auxiliary agent; The consumption of described A is 18-20%, and the consumption of B is 25-32%, and the consumption of C is 45-50%, and the consumption of D is 3-5%.
Table 2 is prescriptions of preparation nano aqueous ceramic coating binding agent:
Embodiment 2
For this reason, we are by in many ways selecting relatively, determine that the 2# prescription use solid content in the employing table 2 is 450 parts of 33% left and right sides potassium silicates, solid content is 250 parts of 30% left and right sides silicon sol, concentration is solidifying 25 parts of 8% the inorganic polynite of MMT, 10 parts of silane coupling agents, and concentration is 80 parts of 20% potassium hydroxide aqueous solutions, 185 parts in water is by the potassium silicate resin of above-mentioned production stage and the high silicon ratio of requirement making.Found that as paint binder, at physicochemical property comprehensive raising has been arranged than common potassium silicate resin, stability, water tolerance improves, apply in the experiment of film formation and low temperature recrystallize nano aqueous structural ceramics and the case, its performance reaches requirement basically, but fragility is still very large, closed performance does not reach, under 600 ℃ of-1000 ℃ of environment of steel construction, be can use fully, but do not reach all promising policy to the application requiring of multiple material, that is to say the effect that needs the 2-3 kind to satisfy the demands at the same equipment, the processing of base material also needs could construct under the condition of Sa2.5.
The preparation method of aqueous inorganic ceramic coating binding agent is with embodiment 1.
The prescription of the coating of aquosity inorganic nano ceramic coating binding agent is with embodiment 1.
Embodiment 3
After the allotment use by above two kinds of prescriptions, the application requiring that we summarize repeatedly and research and development are more suitable for multiple material again, general convenient, environment-friendly and energy-efficient, the prescription of the nano aqueous ceramic coating binding agent base-material that long-acting high temperature resistant heavy anti-corrosion paint is required, so we are according to first, the practical problems that the prescription of two case practicalities exists, to fill a prescription and repeatedly adjust to cold spraying film forming pencil method detection hardness more than 7H, wear resisting property reaches 0.030 standard, and guarantee high temperature resistant 600 ℃ of-1000 ℃ of quenchings, non-scale under the shock heating environment, do not come off, and coating is intact under the 50kg.cm shock strength detects, and reaches simultaneously the heavy antiseptic property index of salt spray resistance.Therefore determine that the 3# prescription use solid content in the employing table 2 is 380 parts of 33% left and right sides potassium silicates, solid content is 220 parts of 30% left and right sides silicon sol, concentration is 25 parts of 8% the inorganic polynite gels of MMT, 20 parts of silane coupling agents, concentration is 185 parts of 20% potassium hydroxide aqueous solutions, 170 parts in water is by the potassium silicate resin of above-mentioned production stage and the high silicon ratio of requirement making.Utilize this resin to test and use, indices all can be up to standard as a result.
The preparation method of aqueous inorganic ceramic coating binding agent is with embodiment 1.
The prescription of the coating of aquosity inorganic nano ceramic coating binding agent is with embodiment 1.
Contrast
Table 3 is listed and is used above-mentioned production stage and require the standby coating of potassium silicate resin of the high silicon ratio of making and Taiwan to defend the standby coating of the precious KZ-707 resin of steel, has done performance comparison, sees table 3 for details.
Table 3 uses nano aqueous ceramic coating binding agent and other binding agent to prepare the coating property contrast
。
Claims (7)
1. the binding agent of aqueous inorganic ceramic coating is characterized in that it is comprised of the component of following weight percent content, wherein SiO
2: K
2The mol ratio of O is 5.7:1,
2. the binding agent of aqueous inorganic ceramic coating according to claim 1, the solid content that it is characterized in that described potassium silicate is 33%.
3. the binding agent of aqueous inorganic ceramic coating according to claim 1 is characterized in that described silicon sol is with SiO
2Be the dispersion of fundamental unit in water, SiO
2Solid content be 30%, SiO
2The particle size range of particle is at 5nm-40nm.
4. the binding agent of aqueous inorganic ceramic coating according to claim 1 is characterized in that described MMT polynite gel is that concentration is 8% the polynite aqueous solution, the illiteracy soap clay of purified modification.
5. the binding agent of aqueous inorganic ceramic coating according to claim 1 is characterized in that described potassium hydroxide aqueous solution is that concentration is 20% the aqueous solution.
6. the method for preparing aqueous inorganic ceramic coating binding agent described in above-mentioned arbitrary claim is characterized in that it is comprised of following steps successively:
(1), potassium silicate solution is slowly poured in the container by above-mentioned weight percent, begin to heat up;
(2), adjust rotating speed with intelligent dispersion machine controller, adjust rotating speed to 1000 r/min-1200 r/min, the limit is stirred the companion limit and is heated up, and stirs 25mim-30min;
(3), when the potassium silicate solution temperature rises to 35 ℃-40 ℃, by above-mentioned weight percent silicon sol solution is slowly poured in the container, adjust rotating speed with the dispersion machine controller, adjust rotating speed to 1200 r/min-1500 r/min, stir 25mim-30min;
(4), dispersing and dissolving evenly after, by above-mentioned weight percent MMT polynite gel is slowly poured in the container, adjusting rotating speed with the dispersion machine controller is 2500 r/min-3000 r/min, is incubated 20min-30min;
(5), be uniformly dispersed after, when solution temperature rises to 45 ℃-60 ℃, by above-mentioned weight percent silane coupling agent is slowly poured in the container, adjust rotating speed to 1500 r/min-2000 r/min with the dispersion machine controller, stir 25min-30min, miscellany is fully mixed;
(6), be uniformly dispersed after, by above-mentioned weight percent stablizer is slowly poured in the container, adjust rotating speed to 1500r/min-2000r/min with the dispersion machine controller, stir 30min-40min;
(7), by above-mentioned weight percent water is slowly added in the container, after being uniformly dispersed, 20min-40min is left standstill in insulation;
(8), the liquid of final formation is contained in containers for future use after with 120-300 purpose strainer filtering.
7. the coating that contains the described aqueous inorganic ceramic coating of the claims 1-5 binding agent is characterized in that it comprises deionized water, color stuffing, aqueous inorganic ceramic coating binding agent, auxiliary agent; The weight percent consumption of described deionized water is 18-20%, and the weight percent consumption of color stuffing is 25-32%, and the weight percent consumption of aqueous inorganic ceramic coating binding agent is 45-50%, and the weight percent consumption of auxiliary agent is 3-5%.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104341811A (en) * | 2014-11-10 | 2015-02-11 | 珠海市澜诺新材料科技有限公司 | Bonding agent for water-based over-rust corrosion protective coating, preparation method of bonding agent, and coating composition formed by bonding agent |
| CN104591674A (en) * | 2015-01-20 | 2015-05-06 | 珠海市澜诺新材料科技有限公司 | Water-based inorganic waterproof adhesive, waterproof coating and preparation method of water-based inorganic waterproof adhesive |
| CN105925020A (en) * | 2016-05-31 | 2016-09-07 | 上海祥贸实业有限公司 | Converter dust removal fan corrosion-resistant material and application thereof |
| CN109943117A (en) * | 2019-03-28 | 2019-06-28 | 江门华材实业有限公司 | Antioxidation ceramic coating and preparation method thereof and coating product |
| CN110846642A (en) * | 2018-08-20 | 2020-02-28 | 北京绿时顺风科技有限公司 | Method for manually preparing ceramic thermal barrier coating on metal surface at room temperature |
| CN111019416A (en) * | 2019-11-12 | 2020-04-17 | 立邦涂料(四川)有限公司 | Fireproof reflective heat-insulation inorganic coating for exterior wall and preparation method thereof |
| CN112251065A (en) * | 2020-10-30 | 2021-01-22 | 李肖友 | Preparation process of coating |
| CN115304942A (en) * | 2022-08-16 | 2022-11-08 | 上海保耐舒新材料技术有限公司 | Water-based long-acting antifogging self-cleaning coating and preparation method thereof |
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| CN1441015A (en) * | 2003-03-26 | 2003-09-10 | 武汉理工大学 | Nano modified polymer-based roof waterproof paint and its production process |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104341811A (en) * | 2014-11-10 | 2015-02-11 | 珠海市澜诺新材料科技有限公司 | Bonding agent for water-based over-rust corrosion protective coating, preparation method of bonding agent, and coating composition formed by bonding agent |
| CN104591674A (en) * | 2015-01-20 | 2015-05-06 | 珠海市澜诺新材料科技有限公司 | Water-based inorganic waterproof adhesive, waterproof coating and preparation method of water-based inorganic waterproof adhesive |
| CN105925020A (en) * | 2016-05-31 | 2016-09-07 | 上海祥贸实业有限公司 | Converter dust removal fan corrosion-resistant material and application thereof |
| CN110846642A (en) * | 2018-08-20 | 2020-02-28 | 北京绿时顺风科技有限公司 | Method for manually preparing ceramic thermal barrier coating on metal surface at room temperature |
| CN109943117A (en) * | 2019-03-28 | 2019-06-28 | 江门华材实业有限公司 | Antioxidation ceramic coating and preparation method thereof and coating product |
| CN111019416A (en) * | 2019-11-12 | 2020-04-17 | 立邦涂料(四川)有限公司 | Fireproof reflective heat-insulation inorganic coating for exterior wall and preparation method thereof |
| CN112251065A (en) * | 2020-10-30 | 2021-01-22 | 李肖友 | Preparation process of coating |
| CN115304942A (en) * | 2022-08-16 | 2022-11-08 | 上海保耐舒新材料技术有限公司 | Water-based long-acting antifogging self-cleaning coating and preparation method thereof |
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Application publication date: 20130320 |