CN104449247A - Antistatic waterborne epoxy floor coating top finish and preparation method thereof - Google Patents
Antistatic waterborne epoxy floor coating top finish and preparation method thereof Download PDFInfo
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- CN104449247A CN104449247A CN201310436271.7A CN201310436271A CN104449247A CN 104449247 A CN104449247 A CN 104449247A CN 201310436271 A CN201310436271 A CN 201310436271A CN 104449247 A CN104449247 A CN 104449247A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Abstract
The invention discloses an antistatic waterborne epoxy floor coating top finish and a preparation method thereof. The antistatic waterborne epoxy floor coating top finish is prepared from A and B components, wherein the A component is prepared from a waterborne epoxy resin curing agent II, water, a volume filler, an antistatic material, a promoter and a color paste; the B component is prepared from bisphenol A type epoxy resin and an active diluent. The preparation method comprises the following steps: dissolving the waterborne epoxy resin curing agent and a part of promoter in a part of water, adding the volume filler, grinding, then adding the antistatic material and the residual water, stirring, uniformly dispersing, sieving, matching color by virtue of the color paste, and then adding the residual promoter to prepare the A component; and preparing the B component into the A component according to the mass ratio to obtain the antistatic waterborne epoxy floor coating top finish. The antistatic waterborne epoxy floor coating top finish is safe, environmentally friendly, low in cost and good in antistatic function. The preparation method is simple, is low in the cost and can be used for industrial production.
Description
Technical field
The present invention relates to a kind of water-base epoxy antistatic floor coatings finish paint and preparation method thereof, belong to technical field of coatings.
Background technology
Modern science and technology and developing rapidly of production propose more and more higher requirement to terraces such as factory building, workshop, laboratories: the first, high level of cleanliness.Require that workshop terrace is corrosion-resistant, clean and wear-resisting, room air dustiness is as far as possible low, and this is not only the demand of improving working conditions, especially the guarantee of quality product; The second, eliminate buildup of static electricity.Terrace owing to often easily gathering a large amount of static charge by friction, thus hinders production operation, interference precision instrument work and affects processing precision of products, even causes the accident such as fire, blast.Antistatic floor coatings can give terrace electroconductibility to eliminate the harm of electrostatic, and because its production unit is simple, easy construction, with low cost, be thus widely used in the fields such as electronics, building, aviation, military affairs in recent years.
Whether Antistatic Paint has electroconductibility according to its filmogen, can be divided into two large classes: addition type Antistatic Paint and non-addition type Antistatic Paint.There is a lot of difficulty in the synthesis of non-addition type Antistatic Paint, construction, cost is also higher, and performance is not ideal enough, therefore is not yet used widely; Addition type Antistatic Paint is then the mixture of conductive filler material, matrix resin, auxiliary agent, solvent, after mechanically mixing, be coated on material surface formed one deck cured film, utilize the electric action of conductive filler material to produce the effect of anti-electrostatic, applied widely.
But the epoxy resin antistatic floor coatings that existing market uses be solvent type substantially, with the addition of a large amount of organic solvents in coating, not only not environmentally but also waste energy, and mostly use the filler containing heavy metal or toxic metal oxide compound.And the feature of water-base epoxy antistatic floor coatings is: basic VOC free discharge, environmentally friendly; Anti-static effect is excellent, lasting, and surface resistivity and volume resistance can reach service requirements.
Summary of the invention
The present invention is directed to the problem that the organic volatile existed in epoxy coating in prior art is many, smell is large, toxicity is large, object is the water-base epoxy antistatic floor coatings finish paint providing a kind of safety and environmental protection, cheapness, electrostatic-proof function good.
Another object of the present invention there is provided a kind of preparation method of simple, low cost of described water-base epoxy antistatic floor coatings finish paint, can suitability for industrialized production.
The invention provides a kind of aqueous epoxy resins antistatic floor coatings finish paint, be made up of A, B two-component,
Component A is made up of following mass percent component:
II is for aqueous epoxy resin curing agent 20 ~ 45%;
Water 20 ~ 50%;
Volume filler 20 ~ 50%;
Antistatic material 1 ~ 10%;
Auxiliary agent 0.1 ~ 3%;
Mill base 0.1 ~ 5%;
B component is made up of bisphenol A type epoxy resin and reactive thinner.
In described B component, the mass ratio of bisphenol A type epoxy resin and reactive thinner is 70 ~ 95:5 ~ 30.
Described antistatic material comprises electro-conductive fiber and conductive paste.
Described electro-conductive fiber and the mass ratio of conductive paste are 1/10 ~ 1/3.
Described aqueous epoxy resins antistatic floor coatings finish paint, the epoxy equivalent (weight) that the quality proportioning of B component and component A meets in B component is 1:0.8 ~ 1.2 with the ratio of the active amine hydrogens equivalent in component A.
Described reactive thinner comprises butylglycidyl ether, octyl glycidyl ether, carbon 10 two to tetradecyl glycidyl ether, ethylene glycol diglycidylether, neopentylglycol diglycidyl ether, trishydroxymethyl triglycidyl ether, 1, one or more in 4-butanediol diglycidyl ether, polyethyleneglycol diglycidylether, polypropylene glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, tertiary carbonic acid glycidyl ester.
Described volume filler is one or more in calcium carbonate, silicon powder, talcum powder, silica powder, titanium dioxide, barium sulfate, wollastonite powder.
Described auxiliary agent comprises dispersion agent, flow agent and defoamer.
Described II is generally epoxy polyamines affixture for aqueous epoxy resin curing agent.
Present invention also offers a kind of preparation method of described aqueous epoxy resins antistatic floor coatings finish paint, II is first dissolved in part water for aqueous epoxy resin curing agent and part of auxiliary by stirring by this preparation method, add volume filler again and carry out dispersed with stirring evenly, obtain mixture; After being ground by gained mixture, and antistatic material and excess water dispersed with stirring are even, sieve, with color paste toning, then add surplus auxiliary agent, obtain component A, using bisphenol A type epoxy resin and reactive thinner as B component, and component A separately packaging, for subsequent use.
Described grinding is until particle fineness≤50 μm.
Described sieving was 200 eye mesh screens.
The preparation method of aqueous epoxy resins antistatic floor coatings of the present invention: first II is added pan feeding cylinder for the dispersion agent in aqueous epoxy resin curing agent, part water, auxiliary agent, stir; In material cylinder, add volume filler again, dispersed with stirring is even; By levigate for gained material, control particle fineness≤50 μm; Add antistatic material and excess water again, continue dispersed with stirring even; After crossing 200 eye mesh screens, add mill base and mix colours, add flow agent in auxiliary agent and defoamer is uniformly dispersed simultaneously; Packaging, obtains component A; Allocate the bisphenol A type epoxy resin of respective quality and reactive thinner into as B component, pack, for subsequent use.
Beneficial effect of the present invention: the present invention adopts bisphenol A type epoxy resin and II to be filmogen for aqueous epoxy resin curing agent system, using electro-conductive fiber and conductive paste as conducting material, use water as solvent, make safety and environmental protection, cheapness, water-base epoxy antistatic floor coatings finish paint that electrostatic-proof function is good.Water-base epoxy antistatic floor coatings finish paint of the present invention take water as solvent, and organic volatile is few, smell is little, energy-conservation, safety and environmental protection, and service tool can clean up with water, not only reduces use cost, meets environmental regulation again, free from environmental pollution; And adopt the composite anti-static material of electro-conductive fiber and conductive paste, good with finish paint consistency, be uniformly dispersed, electro-conductive fiber is in interval distribution, be used alone the effect not reaching static conductive, although and conductive paste conductive effect is not as electro-conductive fiber, its structure is continuous distribution with fine particle, can form external phase, therefore conductive paste is adopted to be main, be aided with electro-conductive fiber as main conductive material, both with the use of, ensure that the static conductive approach of whole coating is unobstructed; The preparation method of coating is simple, low without equipment requirements, cost, can suitability for industrialized production.
Embodiment
Following examples are intended to further illustrate the present invention, instead of restriction the scope of protection of the invention.
Embodiment 1
Each component is taken by mass percent below:
Component A:
B component:
Bisphenol A type epoxy resin (epoxy equivalent (weight) is 186g/eq) 80wt%
Butylglycidyl ether 20wt%
The making processes of component A divides eight steps:
Step one: the II measured is added pan feeding cylinder for the water of aqueous epoxy resin curing agent, 16.5wt%, dispersion agent, and dispersion stirs.
Step 2: toward material cylinder in add silica powder, barium sulfate, talcum powder continue dispersion stir.
Step 3: will be levigate by sand mill through the uniform material of dispersed with stirring above, fineness controls≤50 μm.
Step 4: the water dispersed with stirring in dispersion machine adding electro-conductive fiber, conductive paste and remaining 16.5wt% is even.
Step 5: filter with 200 mesh filter screens.
Step 6: add aqueous color paste and mix colours.
Step 7: add flow agent and defoamer dispersed with stirring is even.
Step 8: packaging, is coating component A.
Be coated with at the bottom of water-base epoxy antistatic floor on gypsum according to antistatic floor coatings construction technology, middle painting coating, again by water-base epoxy anti-electrostatic finish paint obtained above in mass ratio A:B=4:1 mix, brush in above-mentioned plasterboard coating, then place 7 days under the environment of temperature about 25 DEG C.Carried out the test of correlated performance according to national standard, test result sees the following form 1.
The performance test of table 1 water-base epoxy antistatic floor
Embodiment 2
Each component is taken by mass percent below:
Component A:
B component:
Bisphenol A type epoxy resin (epoxy equivalent (weight) is 1866g/eq) 85%
Butylglycidyl ether 5%
Carbon 10 two to tetradecyl glycidyl ether 10%
The making processes of component A divides eight steps:
Step one: by the II measured for aqueous epoxy resin curing agent, 15% water, dispersion agent add pan feeding cylinder, dispersion stirs.
Step 2: toward material cylinder in add titanium dioxide, silicon powder, talcum powder continue dispersion stir.
Step 3: by levigate by sand mill for the material stirred through dispersion above, fineness controls≤50 μm.
Step 4: add electro-conductive fiber, conductive paste and remaining 15% water disperse to stir in dispersion machine.
Step 5: filter with 200 mesh filter screens.
Step 6: add mill base and mix colours.
Step 7: add flow agent and defoamer dispersed with stirring is even.
Step 8: packaging, is coating component A.
Be coated with at the bottom of water-base epoxy antistatic floor on gypsum according to antistatic floor coatings construction technology, middle painting coating, again water-base epoxy anti-electrostatic finish paint obtained is above mixed by quality mass ratio A:B=5:1, brush in above-mentioned plasterboard coating, then place 7 days under the environment of temperature about 25 DEG C.Carried out the test of correlated performance according to national standard, test result sees the following form 2.
The performance test of table 2 water-base epoxy antistatic floor
Embodiment 3
Each component is taken by mass percent below:
Component A:
B component:
Bisphenol A type epoxy resin (epoxy equivalent (weight) is 1866g/eq) 90%
BDDE 5%
Carbon 10 two to tetradecyl glycidyl ether 5%
The making processes of component A divides eight steps:
Step one: by the II measured for aqueous epoxy resin curing agent, 14% water, dispersion agent add pan feeding cylinder, dispersion stirs.
Step 2: toward material cylinder in add titanium dioxide, silicon powder, talcum powder continue dispersion stir.
Step 3: by levigate by sand mill for the material stirred through dispersion above, fineness controls≤50 μm.
Step 4: add electro-conductive fiber, conductive paste and remaining 14% water disperse to stir in dispersion machine.
Step 5: filter with 200 mesh filter screens.
Step 6: add mill base and mix colours.
Step 7: add flow agent and defoamer dispersed with stirring is even.
Step 8: packaging, is coating component A.
Be coated with at the bottom of water-base epoxy antistatic floor on gypsum according to antistatic floor coatings construction technology, middle painting coating, again by water-base epoxy anti-electrostatic finish paint obtained above in mass ratio A:B=6:1 mix, brush in above-mentioned plasterboard coating, then place 7 days under the environment of temperature about 25 DEG C.Carried out the test of correlated performance according to national standard, test result sees the following form.
The performance test of table 3 water-base epoxy antistatic floor
Claims (6)
1. an aqueous epoxy resins antistatic floor coatings finish paint, is made up of A, B two-component, it is characterized in that,
Component A is made up of following mass percent component:
II is for aqueous epoxy resin curing agent 20 ~ 45%;
Water 20 ~ 50%;
Volume filler 20 ~ 50%;
Antistatic material 1 ~ 10%;
Auxiliary agent 0.1 ~ 3%;
Mill base 0.1 ~ 5%;
B component is made up of bisphenol A type epoxy resin and reactive thinner.
2. terrace paint finish paint as claimed in claim 1, it is characterized in that, in described B component, the mass ratio of bisphenol A type epoxy resin and reactive thinner is 70 ~ 95:5 ~ 30.
3. terrace paint finish paint as claimed in claim 1, it is characterized in that, described antistatic material comprises electro-conductive fiber and conductive paste.
4. terrace paint finish paint as claimed in claim 3, it is characterized in that, described electro-conductive fiber and the mass ratio of conductive paste are 1/10 ~ 1/3.
5. the preparation method of the aqueous epoxy resins antistatic floor coatings finish paint as described in any one of Claims 1 to 4, it is characterized in that, first II is dissolved in part water for aqueous epoxy resin curing agent and part of auxiliary by stirring, add volume filler again and carry out dispersed with stirring evenly, obtain mixture; After being ground by gained mixture, and antistatic material and excess water dispersed with stirring are even, sieve, with color paste toning, then add surplus auxiliary agent, obtain component A, using bisphenol A type epoxy resin and reactive thinner as B component, and component A separately packaging, for subsequent use.
6. preparation method as claimed in claim 5, it is characterized in that, described grinding is until particle fineness≤50 μm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106349882A (en) * | 2016-09-21 | 2017-01-25 | 苏州瑞斯格电子科技有限公司 | Anti-static nano epoxy floor paint |
| CN108102509A (en) * | 2017-12-26 | 2018-06-01 | 大余松瀛化工有限公司 | Super abrasive aqueous double-component epoxy flooring coating |
| CN108165076A (en) * | 2017-12-29 | 2018-06-15 | 广州百翼涂料有限公司 | A kind of water nano antistatic epoxy floor paint and preparation method thereof |
| CN108912788A (en) * | 2018-06-15 | 2018-11-30 | 河北晨阳工贸集团有限公司 | A kind of water-base epoxy antistatic floor paint coating and preparation method thereof |
| CN109251627A (en) * | 2018-08-24 | 2019-01-22 | 河北晨阳工贸集团有限公司 | A kind of water-base epoxy fireproof coating and preparation method thereof |
| CN110669417A (en) * | 2019-10-14 | 2020-01-10 | 杭州美多乐环保新材料有限公司 | Wear-resistant scratch-resistant floor finish paint and preparation method thereof |
| CN110698893A (en) * | 2019-10-17 | 2020-01-17 | 杭州美多乐环保新材料有限公司 | Waterborne epoxy antistatic floor coating finish paint and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397473A (en) * | 2007-09-26 | 2009-04-01 | 洛阳七维防腐工程材料有限公司 | Novel additive type solvent-free epoxy self-leveling antistatic floor coatings |
| CN101818015B (en) * | 2010-05-24 | 2012-07-25 | 广州飞宇建材科技有限公司 | Aqueous antistatic epoxy floor paint and preparation method and application thereof |
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2013
- 2013-09-23 CN CN201310436271.7A patent/CN104449247B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106349882A (en) * | 2016-09-21 | 2017-01-25 | 苏州瑞斯格电子科技有限公司 | Anti-static nano epoxy floor paint |
| CN108102509A (en) * | 2017-12-26 | 2018-06-01 | 大余松瀛化工有限公司 | Super abrasive aqueous double-component epoxy flooring coating |
| CN108165076A (en) * | 2017-12-29 | 2018-06-15 | 广州百翼涂料有限公司 | A kind of water nano antistatic epoxy floor paint and preparation method thereof |
| CN108912788A (en) * | 2018-06-15 | 2018-11-30 | 河北晨阳工贸集团有限公司 | A kind of water-base epoxy antistatic floor paint coating and preparation method thereof |
| CN109251627A (en) * | 2018-08-24 | 2019-01-22 | 河北晨阳工贸集团有限公司 | A kind of water-base epoxy fireproof coating and preparation method thereof |
| CN110669417A (en) * | 2019-10-14 | 2020-01-10 | 杭州美多乐环保新材料有限公司 | Wear-resistant scratch-resistant floor finish paint and preparation method thereof |
| CN110698893A (en) * | 2019-10-17 | 2020-01-17 | 杭州美多乐环保新材料有限公司 | Waterborne epoxy antistatic floor coating finish paint and preparation method thereof |
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| CN104449247B (en) | 2017-02-22 |
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