CN106189769B - A kind of Environmental Protective Water-paint and its preparation process - Google Patents
A kind of Environmental Protective Water-paint and its preparation process Download PDFInfo
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- CN106189769B CN106189769B CN201610533991.9A CN201610533991A CN106189769B CN 106189769 B CN106189769 B CN 106189769B CN 201610533991 A CN201610533991 A CN 201610533991A CN 106189769 B CN106189769 B CN 106189769B
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of Environmental Protective Water-paint and its preparation processes, are prepared by following raw materials according：Polyurethane, polysiloxane, silicone oil, polytetrafluoroethylene (PTFE), Sodium Polyacrylate, ethylene acrylic acid co polymer, titanate esters, polyacrylamide, water；Preparation process is：Polyurethane, polysiloxane and silicone oil are poured into hopper, it is agitated to obtain mixed liquor；Sodium Polyacrylate is added into mixed liquor, and rotating speed stirring is improved after addition, adds water, keeps rotating speed to continue to stir, obtains complex emulsions；Into obtained complex emulsions be added polytetrafluoroethylene (PTFE), ethylene acrylic acid co polymer, titanate esters, polyacrylamide, by high speed dispersor disperse to get.Environmental Protective Water-paint prepared by the present invention is environmentally protective, performance is stable, it is easy to prepare, cost is relatively low.
Description
Technical field
The present invention relates to coating composition fields, and in particular to a kind of Environmental Protective Water-paint and its preparation process.
Background technology
Coating is a kind of multi-functional engineering material, is an important industry in chemical industry, there is wide market
Space.A large amount of carcinogenic organic compounds (VOC) can be discharged in traditional solvent-borne coating volatilization process, very big ground contamination environment is right
Human body causes irreversible damage.Therefore, with the raising of national environmental consciousness, country has put into effect green building mark in succession
Standard has wide market development space for the green modification of coating.
Currently, mainly having to green modified coating：Powder coating, no-solvent type coating and water paint.These greens
Modified coating is the reduction of the organic solvent in coating without exception, reduces the volatilization of organic carcinogen matter, to reach green
The purpose of environmental protection.
For wherein water paint using water base high molecular as film forming matter, water is solvent, can be applied to interior decoration, outdoor dress
It repaiies, the fields such as automobile, decorative leather, electronics industry, meets environmentally protective, sustainable development requirement, there is wide development
Space.
Chinese patent CN201410446946.0 discloses a kind of water paint, including following component, epoxy resin, oil
Resin, polyethersulfone resin, butyl acrylate, ethyl acetoacetate, polysorbate, Isooctyl acrylate monomer, wollastonite in powder, talcum
Powder, titanium dioxide, carbon black, the acrylic glycidol ether of monocycle oxygroup, metanitrophenol, 10% silicone oil, parachlorophenol, aromatic hydrocarbons sulphur
Acid, diluent, auxiliary agent, deionized water.But the viscosity of the primary raw material petrochina resin of patent use, polyethersulfone resin
It is small, and since raw material polarity spectrum is big, it is poor with the compatibility of epoxy resin, lead to the lack of homogeneity of made coating, product
Stability is poor.
Chinese patent CN201310389405.4 discloses a kind of high efficiency water coating, and component is by weight percentage：Firmly
Resin acid zinc 5-10%, cured powder 10-15%, thickener 3-8%, urea resin powder 10-15%, titanium dioxide 9-15%, calcium carbonate 5-
7%, kaolin 4-7%, two SiClx powder 9-12%, alcohol ester 12 1-2%, fungicide 1-2%, balance deionized water.But it adopts
The coating film forming made from the patent formulation is poor, cannot reach the product standard of business water paint.
Therefore, it is necessary to it is a kind of it is environmentally protective, performance is stable, it is easy to prepare, lower-cost Environmental Protective Water-paint.
Invention content
The present invention is in view of the above-mentioned problems, provide a kind of Environmental Protective Water-paint and its preparation process.
Technical solution is used by the present invention solves the above problems：A kind of Environmental Protective Water-paint, by following parts by weight
Raw material is prepared：50 parts~70 parts of polyurethane, 20 parts~35 parts of polysiloxane, 4 parts~8 parts of silicone oil, polytetrafluoroethylene (PTFE) 2
Part~5 parts, 4 parts~8 parts of Sodium Polyacrylate, 0.5 part~1.5 parts of ethylene-acrylic acid copolymer, 0.5 part~2 parts of titanate esters are gathered
2 parts~5 parts of acrylamide, 10 parts~20 parts of water；
Wherein, the molecular weight of polyurethane is 6000~30000；The molecular weight of polysiloxane is 15000~30000；
The molecular weight of silicone oil is 1500~3000；The molecular weight of polytetrafluoroethylene (PTFE) is 30000~50000；The molecular weight of Sodium Polyacrylate
It is 2000~3000；The molecular weight of ethylene-acrylic acid copolymer is 3000~5000；The molecular weight of polyacrylamide is 80000
~150000.
Wherein polyurethane, polysiloxane are as film forming matter, and silicone oil is as antifoaming agent, and polytetrafluoroethylene (PTFE) is as lubrication
Agent, Sodium Polyacrylate is as dispersant, and ethylene-acrylic acid copolymer is as water-retaining agent, and titanate esters are as coupling agent, polyacrylamide
Amine is as adhesion promoter.
Further, parts by weight of raw materials is preferably：55 parts~65 parts of polyurethane, 25 parts~30 parts of polysiloxane, silicon
4 parts~6 parts of oil, 2 parts~4 parts of polytetrafluoroethylene (PTFE), 5 parts~7 parts of Sodium Polyacrylate, ethylene-acrylic acid copolymer 0.8 part~1.2
Part, 1 part~1.6 parts of titanate esters, 2.5 parts~3.5 parts of polyacrylamide, 12 parts~18 parts of water.
Further, parts by weight of raw materials is more preferably：60 parts of polyurethane, 28 parts of polysiloxane, silicone oil 5
Part, 3 parts of polytetrafluoroethylene (PTFE), 6 parts of Sodium Polyacrylate, 1 part of ethylene-acrylic acid copolymer, 1.5 parts of titanate esters, polyacrylamide 3
Part, 15 parts of water.
Another goal of the invention of the present invention, is to provide a kind of preparation process of above-mentioned Environmental Protective Water-paint, including following
Step：
Step S1 pours into the polyurethane of the parts by weight, polysiloxane, titanate esters and silicone oil in hopper, 80
DEG C~100 DEG C of temperature condition under, it is agitated, obtain uniformly mixed mixed liquor；
Step S2 is cooled to 50 DEG C~60 DEG C, under the rotating speed of 60r/min~80r/min, into mixed liquor described in addition
The Sodium Polyacrylate of parts by weight improves rotating speed to 300r/min~450r/min, stirs 0.5h~1h, add after addition
The water of the parts by weight keeps the rotating speed of 300r/min~450r/min, stirs 1.5h~3h, obtains complex emulsions；
Polytetrafluoroethylene (PTFE), the ethylene-acrylic acid copolymer of the parts by weight are added into obtained complex emulsions by step S3
Object, polyacrylamide stir 0.5h~1h under the rotating speed of 60r/min~80r/min, then disperse using high speed dispersor
15min~30min is to get the Environmental Protective Water-paint.
Further, in step S1, the rotating speed of stirring is：60r/min~80r/min.
Further, in step S1, the time of stirring is：0.5h~1h.
Further, in step S2, the viscosity of complex emulsions is：10mPas~50mPas.
Further, in step S3, the mixing speed of high speed dispersor is：3000r/min~5000r/min.
Further, in step S3, the emulsion particle of Environmental Protective Water-paint is：0.5 μm~1.5 μm.
It is an advantage of the invention that：
1. the film-forming temperature of Environmental Protective Water-paint prepared by the present invention is low, chemical resistance good to the adhesive force of various base materials
Well, solidification effect is good, drying time is short, excellent storage stability, freeze-thaw stability are good, antibacterial ability is good；
2. the raw material sources that Environmental Protective Water-paint prepared by the present invention is selected are extensive, of low cost, and asepsis environment-protecting, choosing
It uses water as solvent, considerably reduces the release of volatile organic compounds in lacquering process, it is all nontoxic to human body and environment
It is harmless；
The preparation method of what 3. the present invention used prepare Environmental Protective Water-paint is simple, it is easy to operate, not by season territory restriction,
It is very beneficial for large-scale promotion.
Specific implementation mode
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of Environmental Protective Water-paint is prepared by the raw material of following parts by weight：50 parts of polyurethane, polysiloxane 20
Part, 4 parts of silicone oil, 2 parts of polytetrafluoroethylene (PTFE), 4 parts of Sodium Polyacrylate, 0.5 part of ethylene-acrylic acid copolymer, 0.5 part of titanate esters are gathered
2 parts of acrylamide, 10 parts of water.
Wherein, the molecular weight of polyurethane is 6000；The molecular weight of polysiloxane is 15000；The molecular weight of silicone oil is
1500；The molecular weight of polytetrafluoroethylene (PTFE) is 30000；The molecular weight of Sodium Polyacrylate is 2000；Point of ethylene-acrylic acid copolymer
Son amount is 3000；The molecular weight of polyacrylamide is 80000.
Embodiment 2
A kind of Environmental Protective Water-paint is prepared by the raw material of following parts by weight：70 parts of polyurethane, polysiloxane 35
Part, 8 parts of silicone oil, 5 parts of polytetrafluoroethylene (PTFE), 8 parts of Sodium Polyacrylate, 1.5 parts of ethylene-acrylic acid copolymer, 2 parts of titanate esters, poly- third
5 parts of acrylamide, 20 parts of water.
Wherein, the molecular weight of polyurethane is 30000；The molecular weight of polysiloxane is 30000；The molecular weight of silicone oil is
3000；The molecular weight of polytetrafluoroethylene (PTFE) is 50000；The molecular weight of Sodium Polyacrylate is 3000；Point of ethylene-acrylic acid copolymer
Son amount is 5000；The molecular weight of polyacrylamide is 150000.
Embodiment 3
A kind of Environmental Protective Water-paint is prepared by the raw material of following parts by weight：55 parts of polyurethane, polysiloxane 25
Part, 4 parts of silicone oil, 2 parts of polytetrafluoroethylene (PTFE), 5 parts of Sodium Polyacrylate, 0.8 part of ethylene-acrylic acid copolymer, 1 part of titanate esters, poly- third
2.5 parts of acrylamide, 12 parts of water.
Wherein, the molecular weight of polyurethane is 15000；The molecular weight of polysiloxane is 19000；The molecular weight of silicone oil is
1700；The molecular weight of polytetrafluoroethylene (PTFE) is 35000；The molecular weight of Sodium Polyacrylate is 2200；Point of ethylene-acrylic acid copolymer
Son amount is 3500；The molecular weight of polyacrylamide is 100000.
Embodiment 4
A kind of Environmental Protective Water-paint is prepared by the raw material of following parts by weight：65 parts of polyurethane, polysiloxane 30
Part, 6 parts of silicone oil, 4 parts of polytetrafluoroethylene (PTFE), 7 parts of Sodium Polyacrylate, 1.2 parts of ethylene-acrylic acid copolymer, 1.6 parts of titanate esters are gathered
3.5 parts of acrylamide, 18 parts of water.
Wherein, the molecular weight of polyurethane is 25000；The molecular weight of polysiloxane is 25000；The molecular weight of silicone oil is
2500；The molecular weight of polytetrafluoroethylene (PTFE) is 45000；The molecular weight of Sodium Polyacrylate is 2800；Point of ethylene-acrylic acid copolymer
Son amount is 4500；The molecular weight of polyacrylamide is 135000.
Embodiment 5
A kind of Environmental Protective Water-paint is prepared by the raw material of following parts by weight：60 parts of polyurethane, polysiloxane 28
Part, 5 parts of silicone oil, 3 parts of polytetrafluoroethylene (PTFE), 6 parts of Sodium Polyacrylate, 1 part of ethylene-acrylic acid copolymer, 1.5 parts of titanate esters, poly- third
3 parts of acrylamide, 15 parts of water.
Wherein, the molecular weight of polyurethane is 18000；The molecular weight of polysiloxane is 22000；The molecular weight of silicone oil is
2200；The molecular weight of polytetrafluoroethylene (PTFE) is 40000；The molecular weight of Sodium Polyacrylate is 2500；Point of ethylene-acrylic acid copolymer
Son amount is 4000；The molecular weight of polyacrylamide is 120000.
Embodiment 6
A kind of preparation process of Environmental Protective Water-paint, includes the following steps：
Step S1 pours into the polyurethane, polysiloxane and silicone oil of the parts by weight in hopper, in 80 DEG C of temperature
Under the conditions of, it is stirred 0.5h under conditions of rotating speed is 60r/min, obtains uniformly mixed mixed liquor；
Step S2 is cooled to 50 DEG C, and under the rotating speed of 60r/min, the polypropylene of the parts by weight is added into mixed liquor
Sour sodium improves rotating speed to 300r/min, stirs 0.5h, add the water of the parts by weight, keep 300r/min after addition
Rotating speed, stir 1.5h, obtain viscosity be 10mPas complex emulsions；
Polytetrafluoroethylene (PTFE), the ethylene-acrylic acid copolymer of the parts by weight are added into obtained complex emulsions by step S3
Object, titanate esters, polyacrylamide stir 0.5h under the rotating speed of 60r/min, then using the height that speed is 3000r/min
The Environmental Protective Water-paint that fast dispersion machine dispersion 15min is 0.5 μm to get emulsion particle.
Embodiment 7
A kind of preparation process of Environmental Protective Water-paint, includes the following steps：
Step S1 pours into the polyurethane, polysiloxane and silicone oil of the parts by weight in hopper, in 100 DEG C of temperature
Under the conditions of degree, it is stirred 1h under conditions of rotating speed is 80r/min, obtains uniformly mixed mixed liquor；
Step S2 is cooled to 60 DEG C, and under the rotating speed of 80r/min, the polypropylene of the parts by weight is added into mixed liquor
Sour sodium improves rotating speed to 450r/min, stirs 1h, add the water of the parts by weight, keep 450r/min's after addition
Rotating speed stirs 3h, obtains the complex emulsions that viscosity is 50mPas；
Polytetrafluoroethylene (PTFE), the ethylene-acrylic acid copolymer of the parts by weight are added into obtained complex emulsions by step S3
Object, titanate esters, polyacrylamide stir 1h under the rotating speed of 80r/min, then using the high speed that speed is 5000r/min
Dispersion machine disperses the Environmental Protective Water-paint that 30min is 1.5 μm to get emulsion particle.
Embodiment 8
A kind of preparation process of Environmental Protective Water-paint, includes the following steps：
Step S1 pours into the polyurethane, polysiloxane and silicone oil of the parts by weight in hopper, in 90 DEG C of temperature
Under the conditions of, it is stirred 0.8h under conditions of rotating speed is 70r/min, obtains uniformly mixed mixed liquor；
Step S2 is cooled to 55 DEG C, and under the rotating speed of 70r/min, the polypropylene of the parts by weight is added into mixed liquor
Sour sodium improves rotating speed to 370r/min, stirs 0.8h, add the water of the parts by weight, keep 370r/min after addition
Rotating speed, stir 2.3h, obtain viscosity be 30mPas complex emulsions；
Polytetrafluoroethylene (PTFE), the ethylene-acrylic acid copolymer of the parts by weight are added into obtained complex emulsions by step S3
Object, titanate esters, polyacrylamide stir 0.8h under the rotating speed of 70r/min, then using the height that speed is 4000r/min
The Environmental Protective Water-paint that fast dispersion machine dispersion 22min is 1 μm to get emulsion particle.
Experimental example 1
The property of the Environmental Protective Water-paint made to Examples 1 to 8 is tested, and test result is as shown in table 1.Wherein,
Hardness is tested according to GB/T6739-2006；Film-forming temperature is tested according to GB/T9267-1988；Chemical resistance is according to GB/T9274-
1988 tests；Heat-resisting quantity is tested according to GB/T1735-2009；Drying time tests according to GB/T1728-1979.
The performance test results of 1 Environmental Protective Water-paint of table
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of preparation process of Environmental Protective Water-paint, which is characterized in that include the following steps：
Step S1 prepares raw material, includes by weight：50 parts ~ 70 parts of polyurethane, 20 parts ~ 35 parts of polysiloxane, silicone oil
4 parts ~ 8 parts, 2 parts ~ 5 parts of polytetrafluoroethylene (PTFE), 4 parts ~ 8 parts of Sodium Polyacrylate, 0.5 part ~ 1.5 parts of ethylene-acrylic acid copolymer, metatitanic acid
0.5 part ~ 2 parts of ester, 2 parts ~ 5 parts of polyacrylamide, 18 parts ~ 20 parts of water；By the polyurethane of the parts by weight, polysiloxane,
Titanate esters and silicone oil pour into hopper, agitated under 80 °C ~ 100 °C of temperature condition, obtain uniformly mixed mixed liquor；
Step S2 is cooled to 50 °C ~ 60 °C, and under the rotating speed of 60r/min ~ 80r/min, the parts by weight are added into mixed liquor
Sodium Polyacrylate, rotating speed is improved after addition to 300r/min ~ 450r/min, 0.5h ~ 1h is stirred, adds the weight
The water of part keeps the rotating speed of 300r/min ~ 450r/min, stirs 1.5h ~ 3h, obtains complex emulsions；
The polytetrafluoroethylene (PTFE) of the parts by weight is added into obtained complex emulsions, ethylene-acrylic acid copolymer, gathers by step S3
Acrylamide, under the rotating speed of 60r/min ~ 80r/min stir 0.5h ~ 1h, then using high speed dispersor dispersion 15min ~
30min is to get the Environmental Protective Water-paint；
Wherein, the molecular weight of the polyurethane is 6000 ~ 30000；The molecular weight of the polysiloxane be 15000 ~
30000；The molecular weight of the silicone oil is 1500 ~ 3000；The molecular weight of the polytetrafluoroethylene (PTFE) is 30000 ~ 50000；It is described poly-
The molecular weight of sodium acrylate is 2000 ~ 3000；The molecular weight of the ethylene-acrylic acid copolymer is 3000 ~ 5000；Described poly- third
The molecular weight of acrylamide is 80000 ~ 150000.
2. preparation process according to claim 1, which is characterized in that in step S1, the rotating speed of the stirring is：60r/
min~80r/min。
3. preparation process according to claim 1, which is characterized in that in step S1, the time of the stirring is：0.5h~
1h。
4. preparation process according to claim 1, which is characterized in that in step S2, the viscosity of the complex emulsions is：
10mPa·s~50mPa·s。
5. preparation process according to claim 1, which is characterized in that in step S3, the stirring speed of the high speed dispersor
Degree is：3000r/min~5000r/min.
6. preparation process according to claim 1, which is characterized in that in step S3, the lotion of the Environmental Protective Water-paint
Particle is：0.5μm~1.5μm.
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| CN101041760A (en) * | 2007-04-25 | 2007-09-26 | 沈阳市航达科技有限责任公司 | Aqueous anticorrosion paint and preparation method thereof |
| CN102876197A (en) * | 2012-07-04 | 2013-01-16 | 中南大学 | Heat-insulating self-cleaning glass coating |
| CN104761982A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠市英路光电有限公司 | Building-use high-performance radiation heat-insulating aqueous coating and preparation method thereof |
| CN105038513A (en) * | 2015-08-25 | 2015-11-11 | 无锡市长安曙光手套厂 | Water-based conductive coating composition |
| CN105566968A (en) * | 2016-02-19 | 2016-05-11 | 徐冉 | Water-based fireproof coating and preparing method thereof |
| CN105585946A (en) * | 2015-12-18 | 2016-05-18 | 李小鹏 | Water-based microbead light diffusion coating and preparation method thereof |
-
2016
- 2016-07-04 CN CN201610533991.9A patent/CN106189769B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041760A (en) * | 2007-04-25 | 2007-09-26 | 沈阳市航达科技有限责任公司 | Aqueous anticorrosion paint and preparation method thereof |
| CN102876197A (en) * | 2012-07-04 | 2013-01-16 | 中南大学 | Heat-insulating self-cleaning glass coating |
| CN104761982A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠市英路光电有限公司 | Building-use high-performance radiation heat-insulating aqueous coating and preparation method thereof |
| CN105038513A (en) * | 2015-08-25 | 2015-11-11 | 无锡市长安曙光手套厂 | Water-based conductive coating composition |
| CN105585946A (en) * | 2015-12-18 | 2016-05-18 | 李小鹏 | Water-based microbead light diffusion coating and preparation method thereof |
| CN105566968A (en) * | 2016-02-19 | 2016-05-11 | 徐冉 | Water-based fireproof coating and preparing method thereof |
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